To determine customer opinion of their musical variety, sony randomly selects 120 concerts during a certain week and surveys all concertgoers. The type of sampling is used is "Cluster."
What is a survey?A survey is a technique of gathering information from a sample of people by asking relevant questions with the goal of understanding populations as a whole.
Some key features regarding the survey are-
Surveys are an important source of data and insights for everyone in the information economic system, from businesses to the media to government and academia.For more than a decade, online survey software has been the most popular method of conducting survey research, and because getting faster insights is critical to business success, so much companies are relocating to digital solutions.The selection of a sample is critical for collecting accurate and reliable information about the entire population.Cross-check e - mail addresses against names and addresses and remove duplicates if you're sampling a huge database of customer email addresses and only require one response per household.To know more about the survey, here
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[tex]-6n - 9 -9n = -24[/tex]
[tex] - 6n - 9 - 9n = - 24 \\ - 15n = - 24 + 9 \\ - 15n = - 15 \\ 15n = 15 \\ n = \frac{15}{15} = 1[/tex]
Mariko has an 80:1 scale drawing of the floor plan of her house. on the floor plan the dimensions of her rectangular living room are 1 and 7/8 inches by 2 and 1/2 inches.
What is the area of her real living room in square feet?
What is the value of CGD
The price of a shirt is marked down from $12.59 to $10.00 what percent is decrease of the shirt
The percentage by which the price of the shirt is decreased is 20%.
What is the percentage?In mathematics, a percentage is a number or ratio expressed as a fraction of 100. The abbreviation "pct.", "pct," and sometimes "pc" is also used. A percentage is a dimensionless number with no unit of measurement.So, the price of a shirt is marked down from $12.50 to $10.00.
Previous price = $12.50New price = $10.00Then,
Change in price = Previous price - New price= $12.50 - $10.00= $2.50Now, the shirt's percentage has decreased:
(Change in price)/(Previous price) ×100
Therefore, the percentage by which the price of the shirt is decreased is 20%.
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A binomial experiment has 4 trials in which p = 0.35. What is the probability of 1 success?
The formula for calculating the probability of one success under certain conditions is:
x=0.4.
What is probability?"The ratio of the number of favorable outcomes to the total number of outcomes is the standard mathematical definition of probability. Probability is never more than one, and it is never equal to that number."
Generally, the equation for Probability is mathematically given as
Probability [tex]$={ }^n C_r p^r q^{n-r}$[/tex]
According to the question,
Total number of trials n'=4
Number of successes r =1
p=0.35
q=1-0.35
q=0.65
Simply replace the value in order to calculate the appropriate probability.
[tex]\text { Probability } &={ }^4 C_1(0.35)^1(0.65)^{4-1} \\[/tex]
[tex]&=\frac{4 !}{(4-1) ! 1 !} \times \frac{35}{100} \times\left(\frac{65}{100}\right)^3 \\[/tex]
[tex]&=4 \times \frac{35}{100} \times \frac{274625}{1000000} \\[/tex]
=0.384475
=0.4
Hence, the probability of 1 success as per the given condition is equal to 0.384475= 0.4.
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help me please 106.4 + 10³ =
Answer:
1106.4.
Step-by-step explanation:
10*3 = 1000
106.4 + 1000
= 1106.4.
Answer: 1106.4
Step-by-step explanation:
[tex]106.4+10^3=\\106.4+10*10*10=\\106.4+1000=\\1106.4[/tex]
a researcher may claim a causal relationship between variables if one variable influences another. please select the best answer from the choices provided t f
The claim that a researcher may infer a causal link between variables if one effects another is False.
What do you mean when you say that variables have casual relationships?If a change in one variable's level results in a change in the other variable, then there is a causal relationship between the two variables. Keep in mind that correlation does not always imply causation. Two variables may be linked together without one of them directly contributing to the other's observable behavior.
For instance,
the chart below illustrates the relationship between ice cream sales and temperature. Any business can utilize the concept of causality. As is clear from the graph, there is a correlation between warmer weather and increased sales.
A casual relationship between two variables only exists when one of the variables actually causes the other to exist, which does not appear to be the case here. Instead, since a change in one variable affects the other, this scenario can be thought of as a correlated relationship.
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I understand that the question you are looking for is:
a researcher may claim a causal relationship between variables if one variable influences another. please select the best answer from the choices provided.(True/False).
A rectangular garage is 13 yards long and 7 yards wide. It costs $3.00 per square yard to put in a new concrete floor. How much would it cost to put a new concrete floor in the garage?
Answer:
it's B
Step-by-step explanation:
after a long section it is B
In the equation y=mx+b , what letter represents the slope?
Answer:
m represents the slope.
Step-by-step explanation:
m represents the slope. To find the slope, you can use the slope formula.
m=slope
b=y-intercept.
Hope this helps!
Please mark as brainliest if correct!
A child grew 3 1/4 inches one year and 4 3/4 inches the next year. How many inches did the child grow over two years
Answer:
The child grew 8 inches. Hope this helps.
bailey has 40 minutes to exercise.it takes bailey 3 minutes to jog around the track and 5 minutes to stretch. she jogs 6 laps around the track and stretches 2 times what is the experssion for this problem?
A ________ displays the frequency of each class with qualitative data and a ________ displays the frequency of each class with quantitative data.
Some basic concepts and properties based on bar graph and histogram are discussed underneath.
What is a bar grapht?
A bar graph is generally used to illustrate the entire data in the form of rectangular bars. It is also known by the name bar chart. There occur some gap between the two consecutive bars.
What is a histogram?
A type of graph used to depict the frequency of each class with the numerical data. In histogram, the class intervals have equal sizes and there do not exist any gap between the bars in a histogram.
Fill in the blanks using appropriate term
A __bar graph__ displays the frequency of each class with qualitative data and a _histogram_ displays the frequency of each class with quantitative data.
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Carlos has ½ of a tray of brownie left over from the night
before. He eats ⅓ of the leftover part the next night. How
much of the whole pan does Carlos eat? Show how you
solved the problem as an equation.
Answer:
1/6
Step-by-step explanation:
1/2 * 1/3 = 1/6
He ate 1/6 of the whole pan.
A set of shirt prices are normally distributed with a mean of 454545 dollars and a standard deviation of 555 dollars. what proportion of shirt prices are between 373737 dollars and 59.3559.3559, point, 35 dollars? you may round your answer to four decimal places.
The total proportion of shirts between two prices is 0.9431, which is obtained using the knowledge of proportion and statistics.
What is proportion?
In mathematics, a proportion is defined as the comparison between two numerical quantities. If both possess the same nature, they are called directly proportional, or else called inversely proportional.
Calculation of the proportion based on the problem
The mean and standard deviation are given to be 45 and 5 respectively
Calculate standard normal variate using the formula, z = (x - 45) / 5
Taking x = 37, we get,
z1 = (37 - 45) / 5
= -1.6
Using the z table, we get the value, z1 = 0.0548
Now, taking x = 59.35, we get,
z2 = (59.35 - 45) / 5
= 2.87
Using the z table, we get the value, z2 = 0.9979
The proportion between two prices is given by z = z2 - z1
z = 0.9979 - 0.0548
= 0.9431
Hence, the proportion of shirts between the two prices is 0.9431.
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Graph the line.
y= 1/2x - 5
Answer:
Screenshot
Step-by-step explanation:
The y-intercept is -5 so the line hits the y-axis at -5. The slope of the line is 1/2 so the line goes up one and to the right two each time.
multiply (x – 3)(4x 2) using the foil method. select the answer choice showing the foil method products.
The correct answer is (4x^3 - 8x^2 )
Solve by using Foil's Method
Multiply (x - 3)(4x^2)
Begin, by multiplying together, the first terms of binomial
= x * 4x^2 = 4x^3
Now, multiply the last term of binomial.
= -3 * 4x^2 = -12x^2
Sum up the partial products starting from the first to last product from the first to last product and collect it:
=(4x^3 - 8x^2 )
Now, Let us know
What is Foil's Method ?
FOIL a mathematical series of steps used to multiply two binomials.
By definition we have the meaning of FOIL is given by:
F: First
O: Outer
I: Inner
L: Last
Binomial is simply an expression that consist of two variables or terms separated by either the addition sign (+) or subtraction (-).
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3. "the product of a number and 5.”
Answer:
x * 5
Step-by-step explanation:
prosucts refer to multiplication
List 4.6,2.8 repeating,square root,square root of 17 and the square root of 7 form least to greatest
The numbers from least to greatest are -
square root of 7, 2.8, square root of 7 and 4.6.
What is defined as the ascending order and descending order?Descending pattern is defined as it is when numbers (and other objects) are arranged in descending order from the largest to the smallest numbers.
Ascending is defined like when numbers (or even other items) are positioned in ascending order from the smallest to the largest numbers.
We have the numbers provided as;
4.6, 2.8, square root of 17 and the square root of 7.
Then,
square root of 7
√7 = 2.645, and
square root of 17
√17 = 4.123
Thus, the given series becomes;
4.6, 2.8, 4.123, 2.645.
Now, arranging them according to ascending order (least to greatest).
2.645, 4.123, 2.8 and 4.6.
Therefore, the series becomes; square root of 7, 2.8, square root of 7 and 4.6.
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When part of an original figure matches up with part of a copy. These could be segments points or angles.
When a portion of an original figure corresponds to a portion of a duplicate, we refer to them as corresponding parts. This could be in the form of points, segments, angles, or distances.
What exactly do we mean by "corresponding parts"?Parts that match between two congruent triangles are said to as matching. You can identify the corresponding angles and sides.
How many congruent components are there?Triangles are congruent when all 3 types of corresponding sides are congruent. Two triangles have three sides that are equivalent.
How do you determine which sections of a congruent triangle are corresponding?The equals sign with a squiggly line on top indicates that the items on each side of the equation were congruent. Then, identify the corresponding sides. Corresponding sides are sides that match between two triangles. Congruent triangles will have the same length.
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Find the slope of the line
Answer:
-2/3
Step-by-step explanation:
(x1, y1) = (4, 1)
(x2, y2) = (1, 3)
m = (y2 - y1) / (x2 - x1) = (3 - 1) / (1 - 4) = 2 / (-3) = -2/3
Note that we used the point with the bigger x as the "first" point. It does not change the result.
Tony's Carnival charges $25 to enter the park and $4.50 per ride. Ride Palace charges $18 to enter the park and $5 per ride. How many rides do you need to ride for the cost of each park to be the same?
Answer:
14
Step-by-step explanation:
Let x = number of rides.
Tony's cost: 4.5x + 25
Ride's cost: 5x + 18
Set the prices equal and solve for x.
5x + 18 = 4.5x + 25
Subtract 4.5x from both sides.
0.5x + 18 = 25
Subtract 18 from both sides.
0.5x = 7
Multiply both sides by 2.
x = 14
Answer: 14
3. Maria Whetstone, a heating technician, has a gross weekly income of $502.16. Her earnings to date for this year are $20,086.40. How much is deducted from her paycheck this week for Social Security? How much for Medicare?
Deducted from her paycheck this week for Social Security is $31.13.Medicare is equal to $7.28.
Maria Wehstone, Gross weekly income = 502.16 and annual earnigs till date = 20,086.40
Deduction for this week for social security = 6.20% of 502.16$ = $31.13
Deduction for this week for Medicare = 1.45% of 502.16$ = $7.28
Social security is the safety net that a society offers to people and families to ensure that they have access to health care and to assure financial stability, particularly in circumstances of old age, unemployment, illness, invalidity, work injuries, maternity, or the death of a primary earner.
Based on their career earnings, Social Security replaces a portion of your pre-retirement income. Depending on how much you earn and when you decide to begin receiving benefits, Social Security replaces a different percentage of your pre-retirement income depending on your top 35 years of earnings.
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Simplify this. Enter your answer in simplest form.
is -24 greater than -24.0
Triangle ABC has its vertices at the following coordinates:
A(-4, 1) B(0, 2) C(-11, 3)
Give the coordinates of the image triangle A'B'C' after a 90° counterclockwise rotation about the origin.
Using translation concepts, the coordinates of the image of the triangle are given as follows:
A'(-1,-4), B'(-2,0), C'(-3, -11).
What is a translation?A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s definition or in it’s domain. Examples are shift left/right or bottom/up, vertical or horizontal stretching or compression, and reflections over the x-axis or the y-axis.
The rule for a 90° counterclockwise rotation about the origin is given as follows:
(x,y) -> (-y,x).
Hence the coordinates of the image of the triangle are given as follows:
A': (-4, 1) -> (-1, -4).B': (0, 2) -> (-2,0).C': (-11, 3) -> (-3, -11).More can be learned about translation concepts at https://brainly.com/question/4521517
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A cube is made for 1 million cubic centimeters e What is the length of the side of the cube in centimeters?
The length of the side of the cube is 100 centimeters
How to determine the length
The formula for volume of a cube is expressed as:
Volume, V = a³
Where a is the length of its side
Given that the volume is 1 million cubic centimeters = 1, 000, 000
Substitute the values
1, 000, 000 = a³
Find the cube root of both sides
a = ∛10^6
a = 100 centimeters
Thus, the length of the side of the cube is 100 centimeters
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Convert these units of length.
1. 108 in. =
ft.
2.
3.
12 ft. =
1 yd.:
yd.
in. isqe sd
After converting all the given units of length into meters we get,
[tex]108 in = 2.7432 m\\108 ft = 32.9184 m\\12 ft = 3.6576m\\1 yd= 0.9144m[/tex]
As per the question statement, we are supposed to convert these given units of length into meters i.e., 108 inches, 108 feet, 12 feet, 1 yard.
We know
[tex]1 foot = 12 inches[/tex]
[tex]1 inch = 2.54 cm\\[/tex]
[tex]12 inches = 2.54*12=30.48 cm\\1 cm = 0.01 m \\30.48 cm = 0.3048 m[/tex]
Therefore, we can infer that 1 foot = 0.3048 m
So,
[tex]108 in = 2.7432 m\\108 ft = 32.9184 m\\12 ft = 3.6576m\\[/tex]
Now it is a standard that 1 yard equal to 0.3048 meter
Meter: SI unit of length which equals to 100 cm and is the internationally accepted unit for length.Conversion of length: It is the process by the length of one unit is converted to the length of other units using mensuration rules for e.g., 1 meter = 100 centimeters
This question is a classic example to the conversion of length from one unit to another.
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HELP
2x+3=7
Substitute your solution for x into 2x+3 and evaluate. What do you get?
Answer:
x=2
Step-by-step explanation:
2x+3=7
2x=7-3
2x=4
x=4/2=2
x=2
so let x be 2
2x2+3=7
Which graph displays the solution to 2 − x < −8?
Answer:
D
Step-by-step explanation:
x>10 is your answer. since theres no less than or greater or equal to c and B are automatically out. x>10 says x is greater then 10 so it is D
Its B, always remember to check if the dot is opened or closed on the line!!
I need help!!!!!!! It’s is about geometry