Krista needs to stop at the grocery store on the way home from her work. What is the shortest distance, in miles, from Krista's home to her work?

Answers

Answer 1

By using Pythagorean theorem, we find that the shortest distance from Krista's home to her work is approximately 1.19 miles.

To find the shortest distance from Krista's home to her work, we can use the Pythagorean theorem. Let's convert the distances to a common unit, such as miles

Distance from grocery store to work = 500 m = 0.31 miles (since 1 mile = 1609.34 meters)

Total distance from home to work = 2 km = 1.24 miles (since 1 mile = 1.609 km)

Let's call the distance from Krista's home to the grocery store "x". Then, we can set up the following equation

x^2 + 0.31^2 = 1.24^2

Simplifying and solving for x, we get

x^2 = 1.24^2 - 0.31^2 = 1.4223

x = √1.4223 ≈ 1.19 miles

Therefore, the shortest distance is approximately 1.19 miles.

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--The given question is incomplete, the complete question is given

" Krista needs to stop at the grocery store on the way home from her work. What is the shortest distance, in miles, from Krista's home to her work? the distance from grocery store to work is 500m, and the total distance from home to work is 2km"--


Related Questions

2525 students in a high school health class are asked to write down what foods they ate last week. Of the
25
2525 students,
14
1414 write steak,
6
66 write chicken, and
5
55 write both steak and chicken. Using this information, answer each of the following questions.
Let

SS be the event that a randomly selected student writes steak and

CC be the event that a randomly selected student writes chicken.
What is

(

)
P(S)P, left parenthesis, S, right parenthesis, the probability that a student writes steak?
What is

(

)
P(C)P, left parenthesis, C, right parenthesis, the probability that a student writes chicken?
What is

(

and

)
P(S and C)P, left parenthesis, S, start text, space, a, n, d, space, end text, C, right parenthesis, the probability that a student writes steak and chicken?
What is

(

or

)
P(S or C)P, left parenthesis, S, start text, space, o, r, space, end text, C, right parenthesis, the probability that a student writes steak or chicken?

Answers

according to the question the probabilities of event can be P(s)= 14/2525, P(C) = 6/2525, P(S and C) = 5/2525, P(S or C) = 3/505

explain probability?

Probability theory, a subfield of mathematics, quantifies the likelihood that an event is going to happen or that a statement is true. The probability for an event is a number between 0 and 1, where 0 roughly denotes how probable the event is to occur and 1 denotes certainty. A probability is a numerical representation of the likelihood that a certain event will occur. In addition to numbers from 0 to 1, probability values can also be stated as percentages between 0% and 100%. the fraction of an entire set of equally likely possibilities that result in a certain occurrence out of all possible outcomes, expressed as a ratio.

given,

To solve the problem, we can use the formula:

P(A and B) equals P(A) plus P(B) minus P(A or B)

where P(A) is the probability of event A, P(B) is the probability of event B, and P(A or B) is the probability of either A or B occurring (including the case where both A and B occur).

P(S): the probability that a student writes steak is 14/2525.

P(C): the probability that a student writes chicken is 6/2525.

The likelihood that a student would write steak plus chicken equals 5/2525.A or B. P(A and B) Equals P(A) +P(B), which -P(P(S or C))

P(S or C): the probability that a student writes steak or chicken can be calculated as:

P(S or C) = P(S) + P(C) - P(S and C)

= (14/2525) + (6/2525) - (5/2525)

= 15/2525

= 3/505

Therefore, the answers to the questions are:

P(S) = 14/2525

P(C) = 6/2525

P(S and C) = 5/2525

P(S or C) = 3/505

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Taylor is proving the Pythagorean theorem.
(photo attached)
How could Taylor use the diagram to prove the Pythagorean theorem?

A. Taylor could set the area of a square with side length a + b equal to the sum of the areas of the 4 triangles and the square with side length c.

B. Taylor could set the area of the square with side length c equal to the sum of the areas of the 4 congruent triangles.

C. Taylor could find the ratio of the area of the square with side length a + b to the area of one of the congruent triangles.

D. Taylor could find the ratio of the area of the square with side length a + b to the area of the square with side length c.

Answers

If Taylor is proving the Pythagorean theorem.  Taylor can use the diagram to prove the Pythagorean theorem by: A. Taylor could set the area of a square with side length a + b equal to the sum of the areas of the 4 triangles and the square with side length c.

How could Taylor use the diagram to prove the Pythagorean theorem?

To prove the Pythagorean theorem, we want to show that in a right triangle with legs a and b and hypotenuse c, the square of the hypotenuse c^2 is equal to the sum of the squares of the legs a^2 + b^2.

From the given diagram, we can see that we have a square with side length a+b, which is divided into 4 congruent right triangles and a smaller square with side length c. Each of the 4 triangles has legs a and b, which are also the legs of the right triangle we want to prove the theorem for. The smaller square with side length c has an area equal to c^2, which is the square of the hypotenuse of the right triangle.

The area of the square with side length a+b is (a+b)^2 = a^2 + 2ab + b^2. The area of one of the congruent right triangles is (1/2)ab, so the sum of the areas of the 4 triangles is 2ab. Therefore, the sum of the areas of the 4 triangles and the smaller square is:

a^2 + 2ab + b^2 + c^2

But this is also equal to the area of the larger square with side length a+b, which is (a+b)^2. So we have:

a^2 + 2ab + b^2 + c^2 = (a+b)^2

Expanding the right-hand side gives:

a^2 + 2ab + b^2 + c^2 = a^2 + 2ab + b^2

Canceling the common terms on both sides gives:

c^2 = a^2 + b^2

This is the Pythagorean theorem, which we have proved using the given diagram.

Therefore, option A is the correct answer.

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in the chi square test of hypothesis, the null hypothesis states that the variables are select one: a. dependent b. independent c. causally related d. non-random

Answers

Option b is correct.

The null hypothesis in the chi-square test of hypothesis states that the two categorical variables under consideration are independent of each other, meaning that there is no relationship or association between them.

What is chi-square test of hypothesis? Explain more indetail?

In the chi-square test of hypothesis, the null hypothesis states that the variables under consideration are independent. That is, there is no relationship between the two variables being studied.

The chi-square test is a statistical method used to determine if two categorical variables are associated or independent. Categorical variables are those that take on values that are categories or labels.

For example, gender (male or female) or educational level (high school, college, graduate school) are categorical variables.

The chi-square test determines the expected frequency of each category based on the null hypothesis, which assumes independence between the two variables.

The observed frequency is then compared to the expected frequency, and if the difference is significant enough, it suggests that the null hypothesis should be rejected, and the two variables are considered to be associated or dependent.

Therefore, in summary, the null hypothesis in the chi-square test of hypothesis states that the two categorical variables under consideration are independent of each other, meaning that there is no relationship or association between them.

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A gray whale swims 161 kilometers in 24 hours. The equation below can be used to find the rate (r), in kilometers per hour (kph), at which the gray whale swims. Rounded to the nearest tenth, what is the rate at which the gray whale swims?

Answers

The rate at which the gray whale swims is 6.7 kilometers per hour.

What is the equation that relates the distance, rate, and time?

The equation that relates the distance, rate, and time is distance = rate × time

This equation can be used to calculate any one of the three variables if the other two are known.

For example, if you know the rate at which an object is moving and the time it has been moving, you can use this equation to find the distance it has traveled. Or, if you know the distance traveled and the time it took to travel that distance, you can use this equation to find the average rate of travel.

We are given that the distance traveled by the gray whale is 161 kilometers in 24 hours. Therefore, we can use the equation to find the rate at which the gray whale swims,

rate = distance / time = 161 km / 24 h ≈ 6.7 kph

Rounding to the nearest tenth, the rate at which the gray whale swims is approximately 6.7 kilometers per hour.

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Determine if I triangle can be constructed with the following sides. Explain

2/3 , 4/5 , 1/2


what value of x would allow a triangle to be constructed with the following measures?

a. 21,8,x
b. 13,7,x


With the image Find x ​

Answers

Yes, a triangle can be constructed with sides of 2/3, 4/5, and 1/2. the value of x is 17.

Since a triangle is a polygon that has three sides and three vertices. It is one of the basic figures in geometry.

To determine if a triangle can be constructed, we need to check if the sum of the two smaller sides is greater than the largest side.

In this case, we can see that

2/3 + 1/2 > 4/5,

2/3 + 4/5 > 1/2,

1/2 + 4/5 > 2/3,

Therefore, a triangle can be formed.

The value of x can be calculated as;

45 + 68 + 3x + 16 = 180

3x = 51

x = 17

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suppose a scientist designs an experiment to test a hypothesis. which of the following is true? 1 point if the experimenter does the test correctly, the hypothesis will be proven correct. a good experiment is one that produces the most data. an experiment should always be done in a professional science lab, using lab equipment. the results of the experiment might support the hypothesis, or might not.

Answers

The results of the experiment might support the hypothesis, or might not.

The correct statement is that the results of the experiment might support the hypothesis, or might not. It is important to design a well-controlled experiment that tests the hypothesis in a rigorous and systematic way. The goal is not to prove the hypothesis correct, but rather to gather evidence that either supports or contradicts the hypothesis. It is also important to conduct the experiment in a suitable environment with appropriate equipment and procedures to ensure accurate and reliable results.
Your question focuses on understanding the relationship between a hypothesis, an experiment, and the possible outcomes.
An experiment is designed to test a hypothesis, which is an educated guess or prediction about a phenomenon. When conducting an experiment, the results might either support the hypothesis or contradict it, leading to further investigation and refinement of the hypothesis. A well-designed experiment should be able to provide valuable data and insights, regardless of the outcome.

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The statement that is true is:

"The results of the experiment might support the hypothesis or might not."

A scientist designs an experiment to test a hypothesis.

In such a scenario, it is important to note that the outcome of the experiment cannot be predicted with certainty.

The scientific method involves formulating a hypothesis, designing an experiment to test the hypothesis,

collecting and analyzing data and drawing conclusions.

The hypothesis is an educated guess that can be tested through experimentation.

It is important to remember that a hypothesis can never be proven to be 100% correct, only supported or refuted by the evidence obtained through experimentation.
It is not accurate to say that if the experimenter does the test correctly, the hypothesis will be proven correct.

This is because there are many variables that can affect the outcome of the experiment, and it is impossible to control all of them.

Additionally, a good experiment is not necessarily one that produces the most data.

A good experiment is one that is well-designed, carefully controlled, and yields reliable results.

The use of lab equipment is also not a requirement for conducting experiments.

While it is often necessary for certain types of experiments, many experiments can be conducted with simple materials and equipment.
Ultimately, the results of the experiment might support the hypothesis, or might not. If the results support the hypothesis, it can be considered a step towards validating the hypothesis.

The results do not support the hypothesis, it does not necessarily mean that the hypothesis is incorrect.

It could mean that the experiment was flawed, or that the hypothesis needs to be revised based on the new information obtained from the experiment.
Designing and conducting experiments is an important part of the scientific method.

Guarantee that an experiment will yield the desired results, a well-designed and carefully controlled experiment can provide valuable information that can help scientists understand the natural world.

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Find the three trigonometric ratios. If needed, reduce fractions.

Answers

In this instance, the three trigonometric ratios are:

Sinx = 15/17

Cosx =  8/17

Tanx = 15/8

What are trigonometric ratios?

Mathematical trigonometric functions connect the angle of a right-angled triangle to the ratios of its two side lengths.

In all areas of study that involve geometry, such as geodesy, solid mechanics, celestial mechanics, and many others, they are widely used.

Review the trigonometric ratios for sine, cosine, tangent, cotangent, secant, and cosecant.

So, the 3 trigonometric ratios in the given situation would be:

Sinx = O/H = 15/17

Cosx = A/H = 8/17

Tanx = O/A = 15/8

Therefore, in this instance, the three trigonometric ratios are:

Sinx = 15/17

Cosx =  8/17

Tanx = 15/8

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Find the circumference of each circle with a diameter of 22 cm. Use 3.14 for the value of Pi. Round your answer to the nearest tenth. IM IN 7TH

Answers

Rounding to the nearest tenth, the circumference of the circle is 69.1 cm.

Describe Diameter?

Diameter is a term used to describe the measurement of a straight line passing through the center of a circle or sphere and connecting two points on its circumference. It is the longest chord that can be drawn in a circle, passing through the center and splitting the circle into two equal halves.

In other words, the diameter is the distance across the circle or sphere, passing through its center, and it is twice the length of the radius. The diameter is a fundamental measurement in geometry and is used to determine other important properties of circles and spheres such as their circumference, area, volume, and surface area.

Diameter is commonly denoted by the symbol "d" and can be calculated using the formula:

d = 2r

where "r" is the radius of the circle or sphere. The diameter can also be found using the Pythagorean theorem, where the diameter is the hypotenuse of a right triangle with sides equal to the radius.

Understanding the concept of diameter is important in many fields, including mathematics, engineering, and science, and is useful for solving problems related to circular and spherical objects.

The formula for the circumference of a circle is C = πd, where d is the diameter.

Given that the diameter is 22 cm, we can plug this into the formula:

C = πd

C = 3.14 × 22

C = 69.08

Rounding to the nearest tenth, the circumference of the circle is 69.1 cm.

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i need help with this question

Answers

The solution of the equation log(t - 3) = log(17 - 4t), is 4.

option A.

What is the solution of the equation?

To find the solution for the equation log(t - 3) = log(17 - 4t), we can use the properties of logarithms.

Step 1: Remove the logarithms on both sides.

Applying the property of logarithms that states log(a) = log(b) if and only if a = b, we can remove the logarithms from both sides of the equation:

t - 3 = 17 - 4t

Step 2: Add 4t to both sides.

Adding 4t to both sides of the equation to isolate the t term on one side:

t + 4t - 3 = 17

Step 3: Combine like terms.

Combining like terms on the left-hand side:

5t - 3 = 17

Step 4: Add 3 to both sides.

Adding 3 to both sides of the equation to isolate the t term:

5t - 3 + 3 = 17 + 3

5t = 20

Step 5: Divide by 5.

Dividing both sides of the equation by 5 to solve for t:

5t/5 = 20/5

t = 4

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1001(in base 2)-111(in base 2)
313(in base 4)-123(in base 4)
234(in base 5)-12(in base 5)

Answers

1. 1001 (in base 2) - 111 (in base 2) = 2 (in base 2).

2. 313 (in base 4) - 123 (in base 4) = 210 (in base 4).

3. 234 (in base 5) - 12 (in base 5) = 222 (in base 5).

What is arithmetic sequence?

An arithmetic sequence is a sequence of numbers in which each term after the first is found by adding a fixed constant number, called the common difference, to the preceding term.

To perform the subtractions in different bases, we need to convert the numbers to the same base and then subtract them.

1. 1001 (in base 2) - 111 (in base 2):

First, we need to align the two numbers by adding leading zeros to the second number:

1001

0111

0010

Therefore, 1001 (in base 2) - 111 (in base 2) = 2 (in base 2).

2. 313 (in base 4) - 123 (in base 4):

Again, we need to align the two numbers by adding leading zeros to the second number:

313

123

210

Therefore, 313 (in base 4) - 123 (in base 4) = 210 (in base 4).

3. 234 (in base 5) - 12 (in base 5):

Once again, we need to align the two numbers:

234

012

222

Therefore, 234 (in base 5) - 12 (in base 5) = 222 (in base 5).

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4 √(20) + 6 √(45) - √(80)

Answers

Answer:

22√5

Step-by-step explanation:

√20=√4x5 = √4 x √5 = 2√5

√45 = √9 x 5 = √9 x √5 = 3√5

√80 = √16 x 5 = √16 x √5 = 4√5

4√20 = 6 √45 - √80 = 4(2√5) + 6(3√5)- 4√5

8√5 + 18√5 - 4√5 = 22√5

So its 22√5

Answer:

[tex]22 \sqrt{5} [/tex]

Step-by-step explanation:

the explaination is avaliable in the picture i sent you

and please give me branliest

Find the area of the trapezoid. 1. 6 m
4 m
12 m
2. 10 in. 15 in. 6 in
3. 2 yd
8 yd
6 yd
4. H = 10 cm, b,
= 3 cm, by = 5 cm

Answers

The area of the trapezoid is 72 square meters.

In order to find the area of a trapezoid, we need to use the formula:

Area = (b1 + b2) x h / 2

where b1 and b2 are the lengths of the parallel sides, and h is the height of the trapezoid.

In this case, we are given the lengths of the parallel sides as 6m and 12m respectively, and the height of the trapezoid is 4m.

So, we can plug these values into the formula to get:

Area = (6m + 12m) x 4m / 2

Area = 18m x 4m Area = 72m²

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Complete Question:

Find the area of the trapezoid.

Base 1 = 6 m

Height = 4 m

Base 2 = 12 m

how many atheletes in total were acccused of using performance-enhancing drugs? of these, how many were using and how many were not? what percentage of those accused of using were falsely accused?

Answers

There have been numerous cases of athletes being accused of using performance-enhancing drugs, and the numbers may vary depending on the sport, country, and time period in question.

Additionally, determining how many athletes were using or not using performance-enhancing drugs would require specific information on individual cases.

Regarding the percentage of athletes falsely accused of using performance-enhancing drugs, it is difficult to determine an accurate figure without examining each case in detail. False accusations may occur due to various reasons, such as flawed testing procedures or contaminated supplements, and the percentage of false accusations may vary depending on the situation.

If you have a specific case or sport in mind, I can try to provide you with more information on that topic.

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if decision variables for a problem have to be integers then rounding the linear programming optimal solution for that problem will group of answer choices always result in feasible but not optimal solution may result in either a feasible or infeasible solution always result in an optimal solution always result in a feasible and the optimal solution

Answers

If the decision variables for a problem have to be integers, rounding the linear programming optimal solution for that problem will always result in a feasible solution.

However, this solution may not always be optimal. It may result in either a feasible or infeasible solution depending on the problem constraints.

Rounding may also result in an optimal solution if the optimal solution happens to already have integer values for the decision variables. Therefore, rounding may result in a feasible and optimal solution or just a feasible solution but not necessarily always optimal.

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3. Soshi's rhombus has a base of 12 in. and a
height of 10 in. Jack's rhombus has base and
height measures that are double those of Soshis
rhombus. Compare the area of Jack's rhombus to
the area of Soshi's rhombus.

Answers

Answer:

The area of Jack's rhombus is four times the area of Soshi's rhombus.

Step-by-step explanation:

First, calculate the area of Soshi's rhombus. Use the formula for the area of a rhombus:

[tex]A = bh=\\A=(12)(10)=\\A=120[/tex]

Now, we have the Soshi's rhombus is 120 [tex]in^2[/tex].

Jack's rhombus' base and height are double those of Soshi's; multiply each value by two.

[tex]12*2=24\\\\10*2=20[/tex]

Now, substitute the values in the formula for the area of a rhombus:

[tex]A = bh=\\A=(24)(20)=\\A=480[/tex]

Notice that 480 is 4 times 120.

This is because area is a two-dimensional measure (measured in units squared, like [tex]in^2[/tex]) while length is a one-dimensional measure (measured in regular units, like cm and in), The one-dimensional measures of Jack's rhombus are double those of Soshi's, and to translate this to the two-dimensional measure of area, square 2 (2 squared is 2 times 2).

2 squared is 4, so:

the area of Jack's rhombus is four times that of Soshi's.

a sample containing years to maturity and yield for 40 corporate bonds is contained in the excel online file below. construct a spreadsheet to answer the following questions. open spreadsheet a. what is the sample mean years to maturity for corporate bonds and what is the sample standard deviation?

Answers

Use STDDEV.s function to find standard deviation and AVERAGE function to find mean years of maturity.

To answer this question, you would need to open the provided Excel file and input the data into a spreadsheet. Once the data is inputted, you can use Excel's built-in functions to calculate the mean and standard deviation.

To calculate the mean years to maturity, you would use the AVERAGE function and select the column of years to maturity data. The result will give you the average years to maturity for the sample of 40 corporate bonds.

To calculate the standard deviation, you would use the STDEV.S function and select the column of yield data. This will give you the sample standard deviation for the yield data.

Overall, your spreadsheet should have columns for years to maturity and yield, with 40 rows of data for each bond. The mean years to maturity and sample standard deviation for yield can then be calculated using Excel functions.

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The sample mean years to maturity for corporate bonds:

Type the following formula and press Enter:
=AVERAGE(A1 : A40).

The sample standard deviation:

Press Enter: = STDEV.S(A1 : A40).

To calculate the sample mean and sample standard deviation for years to maturity of the 40 corporate bonds, follow these steps:
Open the Excel online file provided.
Assuming that the years to maturity data is in column A, click on an empty cell (let's say B1) to find the sample mean.

Type the following formula and press Enter:
=AVERAGE(A1 : A40).

This will calculate the mean of the years to maturity for the 40 corporate bonds.
To find the sample standard deviation, click on another empty cell (let's say B2) and type the following formula and press Enter:
=STDEV.S(A1 : A40)
This will calculate the sample standard deviation of the years to maturity for the 40 corporate bonds.
Now, you should have both the sample mean years to maturity and the sample standard deviation in cells B1 and B2 respectively.

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Observa la tabla de valores de una función lineal.
x 4 9 14 19 24
y 9 14 19 24 29
¿Cuál es la razón de cambio de y con respecto a x en la función?​

Answers

The rate of change for the given table is 1.

How to get the rate of change?

For a function y = f(x), the rate of change in any interval (a, b) is:

R = (f(b) - f(a))/(b - a)

Here we can use any pair of values in the table, because it clearly is linear, so we can use the first two.

(4, 9) and (9, 14)

The rate of change is:

r = (14 - 9)/(9 - 4) = 5/5 = 1

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Find the three trigonometric ratios. If needed, reduce fractions.

Answers

[tex]\sin(X )=\cfrac{\stackrel{opposite}{36}}{\underset{hypotenuse}{45}}\implies \sin(X )=\cfrac{4}{5} \\\\\\ \cos(X )=\cfrac{\stackrel{adjacent}{27}}{\underset{hypotenuse}{45}}\implies \cos(X)=\cfrac{3}{5} \\\\\\ \tan(X )=\cfrac{\stackrel{opposite}{36}}{\underset{adjacent}{27}}\implies \tan(X)=\cfrac{4}{3}[/tex]

how many people chosen at random are needed to make the probability greater than 12 that there are at least two people born on the same day of the week? rearrange the solution of the above question in correct order.

Answers

To make the probability greater than 0.12 that there are at least two people born on the same day of the week, we need at least 21 people chosen at random.

To solve the problem, we can use the concept of the pigeonhole principle.

The probability that no two people share the same birth day of the week is given by:

P(No two people share the same birth day of the week) = 7/7 x 6/7 x 5/7 x … x [(7-(n-1))/7]

Here, n is the number of people chosen at random. The first person can be born on any day of the week. The probability that the second person is born on a different day of the week is 6/7. The probability that the third person is born on a day of the week different from the first two is 5/7, and so on.

The probability that at least two people share the same birth day of the week is

P(At least two people share the same birth day of the week) = 1 - P(No two people share the same birth day of the week)

We want to find the smallest value of n for which P(At least two people share the same birth day of the week) is greater than 0.12.

1 - P(No two people share the same birth day of the week) > 0.12

P(No two people share the same birth day of the week) < 0.88

Using a calculator or a spreadsheet, we can find that n = 21 is the smallest value that satisfies this inequality. Therefore, we need at least 21 people chosen at random to make the probability greater than 0.12 that there are at least two people born on the same day of the week.

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find the surface area of a cylinder with a radius of 2 feet and height of 8 feet​

Answers

To find the surface area of a cylinder, we need to add the areas of the top and bottom circles, which each have an area of pi times the radius squared, and the area of the curved lateral surface, which has an area of 2 times pi times the radius times the height.

So, the surface area of a cylinder with a radius of 2 feet and height of 8 feet is:

- Area of top and bottom circles: 2 x pi x r^2 = 2 x pi x (2 ft)^2 = 8 x pi ft^2
- Area of curved lateral surface: 2 x pi x r x h = 2 x pi x (2 ft) x (8 ft) = 32 x pi ft^2

Adding these areas together gives us the total surface area:

8 x pi ft^2 + 32 x pi ft^2 = 40 x pi ft^2

Therefore, the surface area of the cylinder is 40 x pi square feet, or approximately 125.66 square feet.

I need help with this ASAP please

Answers

Answer:

y- coordinate = 4

Step-by-step explanation:

consider a right triangle formed by the x- axis, the radius (hypotenuse) of 5 and a vertical line drawn to the x- axis from the point ( 3, - )

using Pythagoras' identity in the right triangle

3² + y² = 5²

9 + y² = 25 ( subtract 9 from both sides )

y² = 16 ( take square root of both sides )

y = [tex]\sqrt{16}[/tex] = 4

the y- coordinate of the point is 4 , that is (3, 4 )

Answer:

y= coordinate 4

right triangle formed by the x- axis, the radius (hypotenuse) of 5 and a vertical line drawn to the x- axis from the point ( 3, - )

using Pythagoras' identity in the right triangle

3² + y² = 5²

9 + y² = 25 ( subtract 9 from both sides )

y² = 16 ( take square root of both sides )

y =

16

16

= 4

the y- coordinate of the point is 4 , that is (3, 4 )

Rectangle PQRS is dilated about the origin to form P'Q'R'S'.
• Point P has coordinates (2, 0.5).
• Point P' has coordinates (8,2).
.
• The perimeter of PQRS is 16.
What is the perimeter of P'Q'R'S'?
A. 16
B. 24
C. 32
D. 64

Answers

The perimeter of the rectangle P'Q'R'S' is 64

What is the perimeter of P'Q'R'S'?

If we let k be the dilation factor, then for any point (x, y) in PQRS and its corresponding point (x', y') in P'Q'R'S', we have:

k = distance from (0, 0) to (x', y') / distance from (0, 0) to (x, y)

To find the dilation factor, we can use the given points P and P':

k = distance from (0, 0) to (8, 2) / distance from (0, 0) to (2, 0.5)

k = √(8^2 + 2^2) / √(2^2 + 0.5^2)

k = √(68) / √(4.25)

k = 4

Given that

The perimeter of PQRS is 16.

So, we have

Perimeter of (PQRS)' = 16 * 4

Evaluate

Perimeter of (PQRS)' = 64

Hence, the perimeter of (PQRS)' is 64

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PLEASE HELP AND EXPLAIN AND SHOW WORK ON HOW YOU GOT THE ANSWER I WILL MARK YOU BRAINLIEST

Answers

Answer: The distance is 14.
Explanation: When finding the distance on the coordinate, if the x and y coordinates are different (for ex, one is negative and the other is positive) you can add their distance. Remember, distance is always positive. So, you can add the -3 and 3 together, resulting in 6. Then, you add 2 and -6, resulting in 8. (6+8=14) So, the distance between the pairs is 14. Hope that helped!

you want to rent an unfurnished one-bedroom apartment for next semester. the mean monthy rent for a random sample of 45 apartments advertised in the local newspaper is $775. assume the standard deviation is $110. find a formula used to generate the 98% confidence interval for the mean monthly rent for unfurnished one-bedroom apartments available for rent in this community.

Answers

Formula:

98% Confidence Interval = (Mean - (2*Standard Deviation/√n), Mean + (2*Standard Deviation/√n))

98% Confidence Interval = ($775 - (2*$110/√45), $775 + (2*$110/√45))

98% Confidence Interval = ($735.56, $814.44)

Claire works at the Sweet Shop, where candy is bagged and sold by its weight. Claire's last 4 sales of gourmet gummy worms are shown in the table.

The cost of the gummy worms is proportional to the amount, in pounds, of gummy worms purchased.
This situation can be represented by an equation in the form y = kx, where k is the constant of proportionality.
Gourmet
Gummy Worms,
x (pounds)

Cost,
y
0.75 $6.30
2.5 $21.00
4 $33.60
7 $58.80
What is the constant of proportionality?

Answers

The constant of proportionality is $8.40

What is constant of proportionality?

The constant of proportionality is a value that relates two quantities that are proportional to each other. It is represented by the letter k and is found by dividing the dependent variable by the independent variable. In this case, the constant of proportionality is $8.40 for the given data set.

According to the given information:

To find the constant of proportionality, we can use any two data points from the table and plug them into the equation y = kx.

Let's use the first and second data points: (0.75, $6.30) and (2.5, $21.00).

We can set up the equation as:

$6.30 = k(0.75)

Solving for k, we get:

k = $6.30/0.75 = $8.40

Now, we can check our work by using another data point. Let's use the third data point: (4, $33.60).

Plugging in the values, we get:

$33.60 = k(4)

k = $33.60/4 = $8.40

Since we get the same value for k, we can be confident that our answer is correct.

Therefore, the constant of proportionality is $8.40.

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Does anyone know what 3D model this is?-

Answers

The given 3D model is a trapezoidal pyramid.

What is pyramid?

A pyramid is a 3D polyhedron having three or more triangle-shaped faces that meet above the base and a polygonal base. The point above the base is referred to as the apex, while the three sides are referred to as faces. The base and apex are joined to form a pyramid. To distinguish them from the base, the triangular sides are also also referred to as lateral faces. In a pyramid, the apex, which creates the triangle face, is connected to each base edge.

Hence, the given 3D model is a trapezoidal pyramid.

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Find the differential of the function. Z = e−4x cos(4πt)

Answers

The differential of the function Z is -4e⁻⁴ˣcos(4πt) - 4πsin(4πt)e⁻⁴ˣ

To find the differential function of Z = e⁻⁴ˣ cos(4πt), we will use the product rule of differentiation. The product rule states that the derivative of the product of two functions is equal to the first function multiplied by the derivative of the second function plus the second function multiplied by the derivative of the first function.

Let's apply the product rule to our function Z:

First, we differentiate the first function e⁻⁴ˣ with respect to x. The derivative of e⁻⁴ˣ is -4e⁻⁴ˣ.

Next, we differentiate the second function cos(4πt) with respect to t. The derivative of cos(4πt) is -4πsin(4πt).

Therefore, the differential function of Z is:

dZ/dt = -4e⁻⁴ˣcos(4πt) - 4πsin(4πt)e⁻⁴ˣ

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Mrs. Hallmark wants to sell a box of two varieties of

birthday cards for $5. 80. The number of 30¢ cards is six

more than one half the number of 35¢ cards. The number

of 35¢ cards is:

Answers

According to unitary method, there are 10 30¢ cards and 8 35¢ cards in the box, which adds up to a total of $5.80.

Let's start by defining our units. In this case, our units are the number of 30¢ cards and the number of 35¢ cards. We know that the box of cards is being sold for $5.80, which means the total value of all the cards in the box is $5.80. We can use this information to set up an equation:

0.30x + 0.35y = 5.80

where x is the number of 30¢ cards and y is the number of 35¢ cards.

Next, we are given the information that the number of 30¢ cards is six more than one half the number of 35¢ cards. Using the unitary method, we can set up an equation that relates the number of 30¢ cards to the number of 35¢ cards:

x = 0.5y + 6

Now we can use this equation to eliminate x from our first equation:

0.30(0.5y + 6) + 0.35y = 5.80

Simplifying this equation gives:

0.15y + 1.80 + 0.35y = 5.80

0.50y = 4.00

y = 8

So there are 8 35¢ cards in the box. We can use the unitary method again to find the number of 30¢ cards:

x = 0.5y + 6

x = 0.5(8) + 6

x = 10

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The ratio of the lengths of corresponding diagonals of two similar kites is =. What is the ratio of their areas?

Answers

The ratio of the areas of the similar kites with the given corresponding diagonals is calculated as: 1/49.

What is the Ratio of the Areas of Similar Kites?

The ratio of the areas of similar polygons are the square of their corresponding sides that are proportional to each other.

Thus, let the kites have diagonals d1 and d2, with d1/d2 = 1/7. Since the kites are similar, their corresponding sides are also proportional.

Therefore, the ratio of their areas = square of d1 / square of d2

ratio = 1² / 7²

= 1/49

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Complete Question?

The ratio of the lengths of corresponding diagonals of two similar kites is 1/7. What is the ratio of their areas?

3. What is the surface area of this composite solid? Show your work.

Answers

The surface area of the composite solid is 162 unit²

What is surface area?

The area occupied by a three-dimensional object by its outer surface is called the surface area.

The composite solid has 6 faces . The area of each face is calculated as follows;

Face 1

area = 5×7 = 35 units²

face 2

area = 1/2bh + l×b

= 1/2 ×3×4 + 3×4

= 6+12 = 18units²

face 3 = face 2

area = 18units²

face 4

area = 3× 7 = 21units²

face 5

area = 4×7

= 28units²

face 6

area = 3×7 + 3×7

= 21+21 = 42units²

Therefore total surface area = 42+28+21+18+18+35

= 162 units²

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