The scale factor of 10cm to 5m is 50.
What is scale factor?The scale factor is a measure for similar figures, who look the same but have different scales or measures.
For example ,if a length of 5cm is doubled and it gives a length 10cm, the scale factor is 10/5 = 2. This means that we can express scale factor with a formula;
scale factor = new dimension / old dimension
Here, the old dimension is 10cm and the new dimension is 5m. We need to convert the 5m into cm
therefore 5m = 5× 100 = 500cm
therefore scale factor = 500/10 = 50
This means the scale factor of 10cm = 5m is 50
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Martin has read 10 percent of a book he has 54 more page to finish how many pages are in the book
Step-by-step explanation:
If he read 10 % , then he has 90 % to go...and this 90% is 54 pages
x = number of pages in book
90% * x = 54
.90x = 54
x = 54/.90 = 60 pages in book
Which of the following functions is graphed below?
Note that the function that is graphed below is y = x + 7.
What is the explanation for the above response?The equation y = x + 7 represents a linear function, where x is the independent variable and y is the dependent variable.
It has a slope of 1, which means that for every unit increase in x, y increases by 1. The y-intercept is 7, which is the value of y when x is zero. This equation can be graphed as a straight line on a coordinate plane, with a positive slope and y-intercept of (0, 7).
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Determine the type of variable for:The number of counties in California.
Qualitative nominal
Quantitative Continuous
Qualitative ordinal
Quantitative discrete
Determine the type of variable for: The stages of childhood: Infant, Toddler, Preschooler, School age, Preteen, Teen
Qualitative nominal
Quantitative Continuous
Qualitative ordinal
Quantitative discrete
Suppose the average time for a class of 28 students (taken from a campus of 1200 students) to drive to campus was 23 minutes.
Select the choice
In the scenario above, 23 minutes is a parameter/ statistic , because 28 students is a sample/ population.
At a Track field, a coach keeps track of an athletes mile time. The coach reported that the mean mile time of a particular athlete was 7 minutes and the standard deviation of the mile time was 1 minute. Assume that the coach also gave us the information that the distribution of the mile time was bell shaped. Use the empirical rule to find:
What percent of the athlete's mile times are expected to be between 6 minutes and 8 minutes?
What percent of the athlete's mile times are expected to be between 4 minutes and 7 minutes?
What percent of the athlete's mile times are expected to be less than 9 minutes?
The type of variable for,
a. The number of counties in California: Quantitative discrete.
b. The stages of childhood: Qualitative ordinal.
c. In the scenario above, 23 minutes is a statistic, because 28 students is a sample.
d. Between 6 minutes and 8 minutes: Approximately 68% of the athlete's mile times are expected to be between 6 and 8 minutes, according to the empirical rule.
e. Between 4 minutes and 7 minutes: Approximately 68% of the athlete's mile times are expected to be between 4 and 10 minutes, according to the empirical rule.
f. Less than 9 minutes: Approximately 84% of the athlete's mile times are expected to be less than 9 minutes, according to the empirical rule.
In statistics, variables can be categorized into two types: qualitative and quantitative.
Qualitative variables describe characteristics or qualities that cannot be measured numerically, such as gender or hair color.
Quantitative variables, on the other hand, represent numerical values that can be measured or counted.
There are two types of quantitative variables: continuous and discrete. Continuous variables can take any numerical value within a range, such as age or weight.
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this table lists the lengths, to the nearest inch, of a random sample of 21 2121 brown bullhead fish. the outlier measurement of 24 2424 inches is an error. of the mean, median, and range of the values listed, which will change the most if the 24 2424-inch measurement is removed from the data?
The range will change the most, if the 24-inch measurement is removed from the data.
The correct answer is an option (c)
Consider the table with outlier 24.
The mean of this sample of 21 brown bullhead fish would be,
x₁ = (8 + (3 × 9) + (2 × 10) + (2 × 11) + (4 × 12) + (3 × 13) + (2 × 14) + (2 × 15) + 16 + 24) / 21
x₁ = 262/21
x₁ = 12.476
And the median would be,
m₁ = 12
And the range would be,
R₁ = 24 - 8
R₁ = 16
If we remove outlier 24 then,
mean x₂ = 11.9
median m₂ = 12
range R₂ = 16 - 8
= 8
Therefore, the range will change the most.
The correct answer is an option (c)
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The complete question is:
The table lists the lengths, to the nearest inch, of a random sample of 21 brown bullhead fish. The outlier measurement of 24 inches is an error. Of the mean, median, and range of the values listed, which will change the most if the 24-inch measurement is removed from the data?
a) mean
b) median
c) range
d) They will all change by the same amount.
The line graph below charts the time spent playing video games during a one week period.
*LOOK AT THE PICTURE*
The line graph contains an error. Study the graph carefully and use complete sentences to describe the error.
A piecewise function is a function that is defined by different equations or formulas on different intervals or pieces of its domain. In other words, a piecewise function is a function that consists of multiple functions "stitched" together.
When looking at the line graph, it is clear that there is a error because the scales don't begin at 0.
What is a line graph?An example of a chart that shows data trends over time or other continuous periods is a line graph. The x-axis represents time or another continuous variable, while the y-axis represents the value of the data. It consists of a sequence of data points connected by a line.
The visualisation of trends and patterns in data, such as variations in temperature, stock prices, or sales numbers over time, is frequently done using line graphs. Due to the ability to draw many lines in a variety of colors and patterns, they are particularly helpful for comparing different data series on the same graph.
When looking at the line graph, it is clear that there is a flaw because the scales don't begin at 0.
It presents information that is incongruous, as if it were saying that the highest hour on Friday is 7, but that it is precisely 1 to 7, making it equivalent to 6.
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Calculate the slope of the line between pairs of points in each of the tables to determine which table represents a linear function? A. B. C. D.
Answer:
Table D represents the linear function
y = x + 1.
a machine that is programmed to package 1.30 pounds of cereal is being tested for its accuracy in a sample of 43 cereal boxes, the sample mean filling weight is calculated as 1.32 pounds. the population standard deviation is known to be 0.06 pounds. find the 95% confidence interval for the mean.
The 95% confidence interval for the mean filling weight of the cereal boxes is (1.300, 1.340) pounds.
To find the 95% confidence interval for the mean filling weight of the cereal boxes, we can use the formula
CI = x ± z × (σ/√n)
where:
x = sample mean filling weight = 1.32 pounds
σ = population standard deviation = 0.06 pounds
n = sample size = 43
z = z-score corresponding to the desired level of confidence (95% in this case)
To find the z-score, we can use a standard normal distribution table or calculator. For a 95% confidence level, the z-score is 1.96.
Plugging in the values, we get
CI = 1.32 ± 1.96×(0.06/√43)
CI = 1.32 ± 0.020
Therefore, the 95% confidence interval for the mean filling weight of the cereal boxes is (1.300, 1.340) pounds. This means that we can be 95% confident that the true population mean filling weight falls within this range.
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Can someone help me ASAP? It’s due today
The only option that represents an independent event is: Option C: "Spinning a Spinner with eight evenly spaced sections, then spinning it again.".
How to Identify Independent Events?Independent events are defined as those events whose occurrence is not dependent on any other event. For example, if we flip a coin in the air and get the outcome as Head, then again if we flip the coin but this time we get the outcome as Tail. In both cases, the occurrence of both events is independent of each other.
Looking at the given options, the only one that represents an independent event is "Spinning a Spinner with eight evenly spaced sections, then spinning it again.".
This is because each event does not depend on another one of the events being described.
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g a generic drug is being tested to test its efficacy (effectiveness) at reducing blood pressure in patients with hypertension (a.k.a. high blood pressure). in a randomized, double-blind experiment with 200 patients, 100 are given the name-brand drug (control group) and 100 are given a generic version of the drug (treatment group). in the control group, the average reduction in blood pressure is 15.2 mmhg with a standard deviation of 11.5 mmhg. in the treatment group, there is an average reduction of 14.6 mmhg and a standard deviation of 12.5 mmhg. neither group has any outliers. a researcher claims that this study shows the generic drug is not as effective as the name-brand drug. what would be the reply of a statistician? you have two attempts for this problem so choose wisely. if you do not receive 5 points in the gradebook after submitting this assignment then you have answered incorrectly. make sure to try it again before the deadline.
A statistician would reply that in order to determine if the generic drug is less effective than the name-brand drug, a hypothesis test needs to be conducted.
The null hypothesis (H0) would be that there is no difference in the average blood pressure reduction between the two drugs, while the alternative hypothesis (H1) would be that the name-brand drug has a higher average reduction in blood pressure than the generic drug.
To test these hypotheses, a t-test would be appropriate since we have two independent samples (control and treatment groups) with known means, standard deviations, and sample sizes. The t-test will provide a p-value, which can be compared to a chosen significance level (e.g., α = 0.05).
If the p-value is less than the significance level, we reject the null hypothesis and conclude that there is a significant difference in the average blood pressure reduction between the two drugs. If the p-value is greater than the significance level, we fail to reject the null hypothesis, meaning we do not have enough evidence to claim that the name-brand drug is more effective than the generic drug.
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Tim paints ornaments for a school play. Each ornament is as shown and is made up of two identical cones. He uses one bottle of paint to paint 213 cm square. How many bottles of paint does he need in order to paint 60 ornaments? Use 3.14 for pie .
The ornaments consist of two identical cones.
The formula for the surface area of a cone is:
SA = πr² + πrl
Since the cones are identical, the radius (r) and slant height (l) are the same for both cones in each ornament. Let's call them r1 and l1.
The total surface area of each ornament is:
SA_ornament = 2(πr1² + πr1l1)
We know that one bottle of paint covers 213 cm², so we can set up the following equation:
SA_ornament * bottles = 60 * 213
Substituting the given value of pi:
2(3.14r1² + 3.14r1l1) * bottles = 60 * 213
Simplifying:
6.28r1² + 6.28r1l1 = 6390
Since we have two variables and only one equation, we need another equation to solve for r1 and l1.
We know that the two cones are identical, so their dimensions are related by a scale factor of 1:2. Let's call the radius and slant height of the larger cone r2 and l2, respectively. Then:
r2 = 2r1
l2 = 2l1
The volume of each ornament is:
V_ornament = (1/3)πr1²l1 + (1/3)πr1²l1 = (2/3)πr1²l1
The scale factor for volumes is (1/4)³ = 1/64, since the radius and height are scaled by 1/4. Therefore:
V_ornament_B = (1/64)V_ornament_A = (1/64)(112π) = 7/4π
The volume of each ornament B is 7/4π.
The volume of 60 ornaments B is:
60 * 7/4π = 105π
We can now solve for r1 and l1 by substituting r2 = 2r1 and l2 = 2l1 into the surface area equation:
6.28r1² + 6.28(2r1)(2l1) = 6390
Simplifying:
6.28r1² + 25.12r1l1 = 6390
We don't need to solve for r1 and l1 explicitly. We just need to use the fact that the volume of each ornament B is (2/3)πr1²l1 and substitute the value of the volume and the relation between r1 and l1 into the equation above to get:
r1 ≈ 7.27 cm
l1 ≈ 14.54 cm
Finally, we can calculate the total surface area of each ornament B:
SA_ornament_B = 2(3.14 * 7.27² + 3.14 * 7.27 * 14.54) ≈ 1158.6 cm²
And the number of bottles of paint needed:
bottles = (60 * 1158.6) / 213 ≈ 326.4
Therefore, Tim needs about 327 bottles of paint to paint 60 ornaments.
a graph used to show the relationship between two variables is called a(n) . multiple choice question. bell curve
The answer to this question is Scatter plot
Trig word problems (need done ASAP)
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 27 feet up. The ladder makes an angle of 62° with the ground. Find the length of the ladder. Round your answer to the nearest tenth of a foot if necessary.
the length of the ladder is approximately 54.01 feet.We can use trigonometric ratios to solve this problem
what is trigonometric ratios ?
Trigonometric ratios are mathematical functions used to relate the angles and sides of a right triangle. In a right triangle, there are three sides: the hypotenuse (the longest side, opposite the right angle), the opposite side (opposite to the angle we are interested in), and the adjacent side
In the given question,
We can use trigonometric ratios to solve this problem. Let's label the ladder as the hypotenuse of a right triangle, the height of the electric box as the opposite side, and the distance from the base of the ladder to the house as the adjacent side. Then we have:
sin(62°) = opposite/hypotenuse
cos(62°) = adjacent/hypotenuse
We know the height of the electric box is 27 feet, and we want to find the length of the ladder (the hypotenuse). Let's use the cosine ratio to solve for the hypotenuse:
cos(62°) = adjacent/hypotenuse
hypotenuse = adjacent/cos(62°)
Now we need to find the adjacent side. We know the height of the electric box is the opposite side, and we can use the tangent ratio to find the adjacent side:
tan(62°) = opposite/adjacent
adjacent = opposite/tan(62°)
opposite = 27 feet
Substituting in the values, we get:
adjacent = 27/tan(62°) ≈ 24.39 feet
Then we can find the hypotenuse:
hypotenuse = adjacent/cos(62°) ≈ 54.01 feet
Therefore, the length of the ladder is approximately 54.01 feet.
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What is the answer and how do I get there?
The value of the missing side length is 2√6. Option C
How to determine the value
We have that the six trigonometric identities are;
sinecosinetangentcotangentsecantcosecantFrom the information given, we have that;
Using the tangent identity,
tan 60 = 6√6/y
find the value
y = 6√6 /√3
Using the sine identity
sin 45 = 6√6 /√3/x
sin45 =6√18/3 × 1/x
√2/2x = 6√18/3
x = 2√18/√2
x = 2√36
x = 2√6
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the iq scores and english test scores of fifth grade students is given by the line of best fit y=-26.7+0.9346s, whereby is the predicted english score and s is the iq score. an actual english test score for a student is 65.7 with an iq of 96 find and interpret the residual
The residual for the given student is approximately 2.77.
This indicates that the student performed better on the English test than what would have been expected based on their IQ score according to the line of best fit.
What is Linear regression?
Linear regression is a statistical technique used to model the relationship between two variables by fitting a linear equation to observed data points.
To find the residual for the given student, we can substitute the student's IQ score (s = 96) into the equation for the best-fit line, y = -26.7 + 0.9346s.
Plugging in s = 96 into the equation, we get:
y = -26.7 + 0.9346(96)
y = -26.7 + 89.6304
y ≈ 62.93 (rounded to two decimal places)
So, the predicted English test score for a student with an IQ score of 96 is approximately 62.93.
To calculate the residual, we subtract the actual English test score (65.7) from the predicted English test score (62.93):
Residual = Actual English test score - Predicted English test score
Residual = 65.7 - 62.93
Residual ≈ 2.77 (rounded to two decimal places)
The residual for the given student is approximately 2.77.
Interpretation:
The positive residual of 2.77 suggests that the actual English test score for the student (65.7) is higher than the predicted English test score based on their IQ score (62.93).
Hence, This indicates that the student performed better on the English test than what would have been expected based on their IQ score according to the line of best fit.
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need answer by 11:45am
The box plots display measures from data collected when 20 people were asked about their wait time at a drive-thru restaurant window.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 8.5 to 15.5 on the number line. A line in the box is at 12. The lines outside the box end at 3 and 27. The graph is titled Super Fast Food.
A horizontal line starting at 0, with tick marks every one-half unit up to 32. The line is labeled Wait Time In Minutes. The box extends from 9.5 to 24 on the number line. A line in the box is at 15.5. The lines outside the box end at 2 and 30. The graph is titled Burger Quick.
Which drive-thru typically has more wait time, and why?
Burger Quick, because it has a larger median
Burger Quick, because it has a larger mean
Super Fast Food, because it has a larger median
Super Fast Food, because it has a larger mean
Question 3
A charity needs to report its typical donations received. The following is a list of the donations from one week. A histogram is provided to display the data.
5, 5, 6, 8, 10, 15, 18, 20, 20, 20, 20, 20, 20
A graph titled Donations to Charity in Dollars. The x-axis is labeled 1 to 5, 6 to 10, 11 to 15, and 16 to 20. The y-axis is labeled Frequency. There is a shaded bar up to 2 above 1 to 5, up to 3 above 6 to 10, up to 1 above 11 to 15, and up to 7 above 16 to 20.
Which measure of variability should the charity use to accurately represent the data? Explain your answer.
The range of 13 is the most accurate to use, since the data is skewed.
The IQR of 13 is the most accurate to use, since the data is skewed.
The range of 20 is the most accurate to use to show that they have plenty of money.
The IQR of 20 is the most accurate to use to show that they need more money.
Question 4
The circle graph describes the distribution of preferred transportation methods from a sample of 400 randomly selected San Francisco residents.
circle graph titled San Francisco Residents' Transportation with five sections labeled walk 40 percent, bicycle 8 percent, streetcar 15 percent, bus 10 percent, and cable car 27 percent
Which of the following conclusions can we draw from the circle graph?
Together, Streetcar and Cable Car are the preferred transportation for 168 residents.
Together, Walk and Streetcar are the preferred transportation for 55 residents.
Bus is the preferred transportation for 45 residents.
Bicycle is the preferred transportation for 50 residents.
Question 5
The line plot displays the number of roses purchased per day at a grocery store.
A horizontal line starting at 1 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 1 and 2. There are two dots above 8. There are three dots above 6, 7, and 9.
Which of the following is the best measure of variability for the data, and what is its value?
The range is the best measure of variability, and it equals 8.
The range is the best measure of variability, and it equals 2.5.
The IQR is the best measure of variability, and it equals 8.
The IQR is the best measure of variability, and it equals 2.5.
Question 6
The histograms display the frequency of temperatures in two different locations in a 30-day period.
A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 14. A shaded bar stops at 10 above 60 to 69, at 9 above 70 to 79, at 5 above 80 to 89, at 4 above 90 to 99, and at 2 above 100 to 109. There is no shaded bar above 110 to 119. The graph is titled Temps in Sunny Town.
A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 16. A shaded bar stops at 2 above 60 to 69, at 4 above 70 to 79, at 12 above 80 to 89, at 6 above 90 to 99, at 4 above 100 to 109, and at 2 above 110 to 119. The graph is titled Temps in Desert Landing.
When comparing the data, which measure of center should be used to determine which location typically has the cooler temperature?
Median, because Desert Landing is symmetric
Mean, because Sunny Town is skewed
Mean, because Desert Landing is symmetric
Median, because Sunny Town is skewed
Question 7
At a recent baseball game of 5,000 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Mustard Chili
63 27 60
Based on the data in this sample, how many of the people in attendance would prefer mustard on a hot dog?
900
2,000
2,100
4,000
The drive-thru with typically more wait time is Burger Quick, because it has a larger median. The Option A.
Why does Burger Quick have a larger median for wait time?The median is a measure of central tendency that represents the middle value of a set of data. In this case, the median wait time at Burger Quick is 15.5 minutes, while the median wait time at Super Fast Food is 12 minutes.
This indicates that, on average, customers at Burger Quick experience a longer wait time compared to customers at Super Fast Food. The larger median at Burger Quick suggests that there may be some longer wait times skewing the data towards the higher end which could be due to various factors such as slower service, or other operational issues at Burger Quick resulting in a longer wait time for customers at their drive-thru.
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amy, beth, and jo listen to four different songs and discuss which ones they like. no song is liked by all three. furthermore, for each of the three pairs of the girls, there is at least one song liked by those two girls but disliked by the third. in how many different ways is this possible?(2012 amc 12b
If there is at-least one-song liked by those two girls but disliked by the third, then the "different-ways" this is possible is 132 ways.
There are ⁴C₃ ways to choose the "3-songs" which are liked by "3-pairs" of girls.
There are 3! ways to find the three songs are liked by which pair of girls.
In total, there are ⁴C₃×3! possibilities for the first "3-songs".
There are "3-cases" for fourth song, let that song be "D".
Case 1: Song "D" is disliked by all three girls means there is only one possibility.
Case 2: Song "D" is liked by exactly one girl means there are three possibility.
Case 3: Song "D" is liked by exactly two girls means there are three pairs of girls to choose from.
However, there is an overlap when "other-song" is liked by "same-pair" of girl is counted as "fourth-song" at some point, in which "case-D" will be counted as one of first "three-songs" liked by same girls.
Counting the overlaps, there are "three-ways" to choose pair with overlaps and 4×3=12 ways to choose what the other "two-pairs" like independently.
In total, there are 3×12=36 over-lapped possibilities,
Therefore, there are ⁴C₃ × 3! ×(3+1+3)-36 = 132 ways for the songs to be likely by the girls.
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A sprinkler can water a region with an 8 foot radius. A plant is 4 feet east and 6 feet north of the sprinkler. Is the plant in the sprinkler’s range? Why or why not?
The plant is not in the sprinkler's range since the distance between the sprinkler and the plant is greater than the radius of the sprinkler's range.
The distance between the sprinkler and the plant can be calculated using the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.
In this case, the distance between the sprinkler and the plant is the hypotenuse of a right triangle with legs of length 4 feet and 6 feet:
distance = sqrt(4^2 + 6^2)
distance = sqrt(16 + 36)
distance = sqrt(52)
distance ≈ 7.21 feet
Since the distance between the sprinkler and the plant is greater than the radius of the sprinkler's range (8 feet), the plant is not in the sprinkler's range. Therefore, the plant will not receive water from the sprinkler.
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Write the nth term rule for the arithmetic sequence with the given term and common difference. Fill in the formula: a = a₁ + d(n-1) below.
a1=-10 and d=0.5
Answer:
The nth term rule for an arithmetic sequence with a first term of -10 and a common difference of 0.5 is given by:
an = a₁ + (n-1)d
where a₁ = -10 and d = 0.5.
Substituting these values into the formula gives:
an = -10 + (n-1)0.5
Simplifying this expression gives:
an = -10 + 0.5n - 0.5
an = -10 + 0.5n - 0.5
an = -10 + 0.5n - 0.5
an = -10 + 0.5n - 0.5
an = -10 + 0.5n - 0.5
an = -10 + 0.5n - 0.5
an = -0.5n - 9.5
I hope that helps! Let me know if I'm wrong!
Step-by-step explanation:
A rectangular mural measures 890 centimeters by 2891
centimeters. Hailey creates a new mural that is 66 centimeters
longer
The perimeter of the rectangular mural after increasing the dimensions by Hailey is equal to 7826 centimeters.
Measures of rectangular mural are,
length = 890 centimeters
Width = 2891 centimeters
New mural is 66 centimeters longer.
The new dimensions of the rectangular mural will be,
New length = 890 cm + 66 cm
= 956 cm
New width = 2891 cm + 66 cm
= 2957 cm
The perimeter of the new mural can be calculated by adding up the lengths of all four sides,
Perimeter = 2(length + width)
⇒Perimeter = 2(956 cm + 2957 cm)
⇒Perimeter = 2(3913 cm)
⇒ Perimeter = 7826 cm
Therefore, the perimeter of Hailey's new mural will be 7826 centimeters.
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The above question is incomplete , the complete question is:
A rectangular mural measures 890 centimeters by 2891centimeters. Hailey creates a new mural that is 66 centimeters longer. What's is the perimeter of Hailey new mural?
Zain's current credit card balance is $9,160.00 with a minimum payment of $325.00. Over the next month he spends $1,098.00. If the APR is 18.99% (billed monthly), what will the new balance be, including interest?
Answer:
The new balance, including interest, will be $10,077.99.
Step-by-step explanation:
To calculate the new balance, including interest, we need to take into account the existing balance, the new charges, and the interest that accrues on the balance over the month. Here are the steps to calculate the new balance:
Calculate the interest on the existing balance:
The monthly interest rate is the APR divided by 12, so in this case it is 18.99%/12 = 1.5825%.
The interest on the existing balance is 1.5825% x $9,160.00 = $144.99.
Add the interest to the balance:
The new balance after adding the interest is $9,160.00 + $144.99 = $9,304.99.
Add the new charges:
The new balance after adding the new charges is $9,304.99 + $1,098.00 = $10,402.99.
Subtract the minimum payment:
Zain pays $325.00 towards the balance, so the new balance is $10,402.99 - $325.00 = $10,077.99.
Therefore, the new balance, including interest, will be $10,077.99.
an observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed and that 65% of the headways between vehicles are 9 seconds or greater. if the observer decides to count traffic in 30- second time intervals, estimate the probability of the
If observer decides to count traffic in 30-second time intervals, then the probability of observer counting exactly 1 vehicles in an interval is 0.344.
The Vehicle headway follows an exponential distribution and the vehicle arrival follows a poison distribution.
We know that that, probability of getting headway greater than or equal to 9 seconds is 65%,
So, P(h≥9) = 0.65 ...equation(1)
We know that, P(h≥t) = [tex]e^{-\lambda \times t}[/tex],
where, h is headway , t is time and λ is vehicle "arrival-rate",
So, P(h≥9) = [tex]e^{-\lambda \times 9}[/tex], ....equation(2)
Equating both equation(1) and equation(2),
We get,
⇒ [tex]e^{-\lambda \times 9}[/tex] = 0.65,
⇒ -9λ = ln(0.65),
⇒ λ = 0.047 vehicles per second.
Since, the vehicle arrival follows poison distribution,
The probability of having "n" vehicles arrive in "t" time is P(n) ,
⇒ P(n) = {(λt)ⁿ[tex]e^{-\lambda \times t}[/tex]}/n!,
where, λ = average vehicle arrival rate = 0.047,
"t" = duration of time interval is = 30,
To find the probability of getting exactly 1 vehicle, we put n = 1,
So,
⇒ P(1) = {(0.047×30)¹ [tex]e^{-0.047 \times 30}[/tex]}/1!
⇒ P(1) = 0.344.
Therefore, the required probability is 0.344.
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The given question is incomplete, the complete question is
An observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed and that 65% of the headways between vehicles are 9 seconds or greater. If the observer decides to count traffic in 30-second time intervals,
Estimate the probability of the observer counting exactly 1 vehicles in an interval.
a classic puzzle: can you draw 4 straight lines that cross through all 9 dots without lifting your pencil off the paper or retracing backwards over lines?
Yes, this classic puzzle can be solved by drawing 4 straight lines that cross through all 9 dots without lifting your pencil off the paper or retracing backwards over lines.
To do this, you must extend your lines beyond the boundaries of the 3x3 grid. Start by drawing a line that connects the top left dot to the bottom right dot, then draw a line from the top right dot to the bottom left dot. Next, draw a line from the top middle dot to the bottom middle dot, and finally, draw a line from the left middle dot to the right middle dot. This solution requires thinking outside the box and extending the lines beyond what may seem like the obvious solution.
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fractions to decimals
Answer: 1 is .4
2. is .6
3 is .5
4 is .375
5 is .18
6 is .71
7 is .16
8 is .66 repeating
9 is .91
and 10 is .25
Step-by-step explanation:
to get all these and fractions to decimals in the future just divide the numerator by the denominator in other words the top number by the bottom number
1): 0.4
2): 0.67 or 0.7
3): 0.5
4): 0.37 or 0.4
5): 0.18
6): 0.42 or 0.5
7): 0.17
8): 0.7
9): 0.97 or 1
10): 0.25
HELP!! VIEW PHOTO THANKS!!
Step-by-step explanation:
Total people surveyed = 246
total female = 122
divorced = 15 + 13 BUT the 13 was already counted in 'female'
soooo
female OR divorced = 122 + 15 out of 246 = 137/246 = .5569
the average number of phone inquiries per day at the emergency center is four. find the probability that it will receive five calls on a given day.
the probability that the emergency center will receive five calls on a given day is approximately 0.156, or 15.6%.
To find the probability of receiving five calls on a given day at the emergency center, we need to use the Poisson distribution formula:
[tex]P(x = 5) = (e^{-4})*\frac{(4^5)}{(5!)}[/tex]
Where:
- x = number of phone inquiries
- e = Euler's number (approximately 2.71828)
- ! = factorial (i.e. 5! = 5*4*3*2*1)
Given that the average number of phone inquiries per day is four, we can use that as our lambda (λ) value in the Poisson distribution formula, since lambda represents the mean number of events in a specific time interval:
λ = 4
Now we can substitute these values into the formula and solve:
P(x = 5) = (e^-4)*(4^5)/(5!) = (2.71828^-4)*(1024)/(120) ≈ 0.156
Therefore, the probability that the emergency center will receive five calls on a given day is approximately 0.156, or 15.6%.
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The probability that the emergency center will receive five calls on a given day is approximately 0.1755 or 17.55%.
To find the probability that the emergency center will receive five calls on a given day, given that the average number of phone inquiries per day is four, we can use the Poisson distribution formula.
Identify the average rate (λ): In this case, λ = 4 calls per day.
Identify the desired number of events (k): In this case, k = 5 calls.
Use the Poisson distribution formula: [tex]P(X = k) = (e^(-λ) \times (λ^k)) / k![/tex]
e is the base of the natural logarithm (approximately 2.71828)
λ is the average rate
k is the desired number of events
k! is the factorial of k
Plug in the values and calculate the probability:
[tex]P(X = 5) = (e^{(-4)} \TIMES (4^5)) / 5![/tex]
[tex]P(X = 5) = (0.0183 \times 1024) / 120[/tex]
P(X = 5) ≈ 0.1755
So, the probability that the emergency center will receive five calls on a given day is approximately 0.1755 or 17.55%.
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Nicky scored 18 points, 22points and 28points in her last three basketball games how many points does she need to score in her next game to have a mean of 25 points per game. Explain
Nicky needs to score 32 points in her next Game to have a mean of 25 points per game.
Nicky needs to score in her next game to have a mean of 25 points per game, we need to use the formula for the mean (average):
Mean = (Sum of all the numbers) / (Number of numbers)
In this case, we know that Nicky has scored 18 points, 22 points, and 28 points in her last three basketball games.
To find out how many points she needs to score in her next game to have a mean of 25 points per game, we need to first find the sum of all the points she has scored so far.
Sum of all the points = 18 + 22 + 28 = 68
Next, we need to find out how many games Nicky has played so far.
We know that she has played three games, so the number of games is 3.
formula for finding the mean to solve for the unknown variable, which is the number of points Nicky needs to score in her next game.
[tex]25 = (68 + x) / 4[/tex]
Multiplying both sides by 4, we get:
100 = 68 + x
Subtracting 68 from both sides, we get:
x = 32
In summary, to find out how many points Nicky needs to score in her next basketball game to have a mean of 25 points per game, we used the formula for finding the mean and solved for the unknown variable.
we got was 32 points, which means Nicky needs to score 32 points in her next game to maintain an average of 25 points per game.
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geometry-
A vendor is using an 8-ft by 8-ft tent for a craft fair. The legs of the tent are 9ft tall and the tent top forms a square pyramid with a height of 3 ft. What is the volume, in cubic feet, of space the tent occupies?
The tent occupies 640 cubic feet of space.
What is volume of a space?Volume is a measurement of the amount of three-dimensional space occupied by an object or substance. It is the measure of the amount of space that an object or substance occupies in three dimensions, typically expressed in cubic units such as cubic meters, cubic centimeters, or cubic feet.
For example, the volume of a cube can be calculated by multiplying its length by its width by its height (or side cubed):
V = l x w x h = [tex]s^3[/tex],
where V is the volume, l is the length, w is the width, h is the height, and s is the length of a side.
Volume is an important measurement in fields such as physics, engineering, architecture, and chemistry, where it is used to calculate quantities such as the amount of fluid that can be held by a container, the amount of material needed to construct a building, or the amount of a substance that can react with another substance in a chemical reaction.
The volume of the tent can be found by calculating the volume of the square pyramid and then adding the volume of the rectangular box formed by the tent's base.
The base of the tent is an 8-ft by 8-ft square, so its area is 8 x 8 = 64 square feet. The height of the pyramid is 3 ft, so its volume is:
V(pyramid) = (1/3) x base area x height
V(pyramid) = (1/3) x 64 x 3
V(pyramid) = 64 cubic feet
The rectangular box formed by the tent's base has dimensions of 8 ft by 8 ft by 9 ft, so its volume is:
V(box) = length x width x height
V(box) = 8 x 8 x 9
V(box) = 576 cubic feet
Therefore, the total volume of space the tent occupies is:
V(total) = V(pyramid) + V(box)
V(total) = 64 + 576
V(total) = 640 cubic feet
So the tent occupies 640 cubic feet of space.
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Complete the inequality.
1/4 ___ 3/16
>
=
Answer:
1/4 > 3/16
Step-by-step explanation:
1/4 = 4/16
4/16 > 3/16
1/4 > 3/16
hope this helps:)
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Women's style of communication has often involved
a.
b.
C.
d.
telling others what to do
thinking only about themselves
understanding others' emotions
trying not to get involved with others
Please select the best answer from the choices provided
O A
The best answer is (c) understanding others' emotions.
Women tend to have a more empathetic communication style compared to men, and they tend to prioritize relationships and emotions in their interactions. This communication style involves actively listening to others, being supportive, and expressing empathy towards their feelings. Women often seek to connect with others on an emotional level and understand their perspective, rather than simply giving orders or being self-centered.
Research has shown that women's communication style can be more effective in building and maintaining relationships, as it fosters trust, mutual respect, and understanding. This style also creates a supportive environment where individuals can express their emotions freely and receive validation for their feelings.
In conclusion, women's communication style involves understanding others' emotions, listening actively, and showing empathy towards their feelings.
This approach promotes positive relationships and creates an environment of mutual respect and trust.
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help i have a 57 in math and if i get this assignment done it will bring my grade up to passing
write the answer in terms of pi
write the answer rounded to the nearest hundredths place
The surface area of the given cylinder is 368π square centimeter.
What is a cylinder?
The cylinder, one of the most basic curvilinear geometric shapes, has long been considered to be a three-dimensional solid. It is regarded as a prism with a circle as its basis in elementary geometry.
We are given a cylinder with following dimensions:
Radius (r) = 8 cm
Height (h) = 15 cm
Now, using the formula, we get
⇒ S = 2πrh + 2π[tex]r^{2}[/tex]
⇒ S = 2π * 8 * 15 + 2 * π * [tex]8^{2}[/tex]
⇒ S = 2π * 120 + 2 * π * 64
⇒ S = 240π + 128π
⇒ S = 368π
Hence, the surface area of the given cylinder is 368π square centimeter.
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Since, there are multiple questions so, the question answered above is attached below.
Question: Find the surface area of the given figure. Writh the answer in terms of pi.