megan wants to study bullying in high school. she randomly selected 1,000 students at a high school, and 400 students completed the survey. what is the response rate?

Answer:

2/5 mile

Step-by-step explanation:

Let's give the total distance the variable x.

1/4x = 1/10

x = 4/10

x = 2/5

Answer:

2.

Step-by-step explanation:

Divide 8 by 1 over 4. The line in a fraction represents the division line. 1/4 is 0.25, so you do 0.25 x 8. Hope this helps!

Answer:

Step-by-step explanation:

the picture is telling us that the angles Q and R are equal so set them equal

9x-17 = 4x + 28

5x = 45

x = 9

Answer:

D , drinking coffee

Step-by-step explanation:

hope this helps you somehow

Answer:

yassssssssssssssssssssssssssssssssssssssssssssss ewasrbesuriueshds

Answer:

D 1.29x+1.35y≤12

Step-by-step explanation:

Nick is making a fruit salad. He buys apples for $1.29 per pound and oranges for $1.35 per pound. He spends no more than $12.

Let x represent the number of pounds of apples that Nick buys. Let y represent the number of pounds of oranges that Nick buys.

1.29x+1.35y≥121.29x+1.35y≥12

1.29x+1.35y>121.29x+1.35y>12

1.29x+1.35y<121.29x+1.35y<12

1.29x+1.35y≤12

Geometry

A right triangle adds up to 180°.

Make an equation to find x.

54°+x°+90°=180°

Add like-terms.

144°+x°=180°

Subtract 144 from both sides.

x°=36

When we have an x-value of 3 the corresponding y-value in the equation is 11.

It should be noted that an equation simply shows the relationship between the expression that's illustrated.

In this case, the function that is represented by the equation function that is represented by the equation y = 3x + 2. and we have an x-value of 3,

Therefore, the value of y will be:

y = 3x + 2.

y = 3(3) + 2

y = 9 + 2

y = 11

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Answer:

111 base 2

only take the whole number after u divided it

Answer:

Yes, the given question is a statistical question.

Step-by-step explanation:

Because someone could ask you the question and you can give them an direct answer.

Answer:

Statistical.

Step-by-step explanation:

A statistical question is a question that can be answered by collecting data that vary.

Hope it helped!

we have the quadratic equation

w (x) =2x^2+10x+13

Solve the equation using the formula

so

a=2

b=10

c=13

substitute

The given equation don't have real zeros

The solutions are complex numbers

Answer:

i. The description is sufficient to describe all cases of a circle.

ii. The description includes only necessary information to describe a circle.

iii. The description is a mathematically precise definition of a circle.

Step-by-step explanation:

A circle can be described as a plane shape bounded by circumference. It's circumference can be determined by: 2\(\pi\)r, where r is its radius.

Thus, it can be said that it contains equidistant (equal distant) points from a common central point called the center of the circle. This definition can be used to describe any circle.

Some of its parts are: diameter, radius, sector, semicircle etc.

Answer:

A,B,C

Step-by-step explanation:

Answer:

OPTION C is the correct answer

7,9

Answer:

option 3 is correct

Step-by-step explanation:

hope it helped

have a good day!

A 1 mile by 1 mile area of land is equivalent to a square that measures one mile on each side. 1 mile by 1 mile area of land contains 640 acres

A 1 mile by 1 mile area of land is equivalent to a square that measures one mile on each side. To determine the number of acres in this square, we need to use the formula for the area of a square, which is A = side x side. Since the side of the square is one mile, the area of the square is 1 mile x 1 mile = 1 square mile.

As we know from the previous question, there are 640 acres in a square mile. Therefore, a 1 mile by 1 mile area of land contains 640 acres. This means that the total area of the square is equivalent to 640 acres.

This information is useful for individuals who work with land or are interested in purchasing or selling land. It is important to have a clear understanding of the size of a particular piece of land and its value in order to make informed decisions. Knowing that a 1 mile by 1 mile area of land contains 640 acres can be a helpful tool in determining the value of a property and understanding its potential uses.

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Answer:

The answer is " The volume is greater than 50 cubic units "

Step-by-step explanation:

In this question, the value of the units and figure is missing that's why its solution can be defined as follows:

Let's the unit value =50 and please find the figure in the attachment file.

The given figure shows its box is not filled with 50 cubes. These were ten empty places where cubes could be placed.

This figure indicates that only the box size will be four units per five units per three units, so they realize it will be in...

\(\to (4 \times 5 \times 3) \ units^3 = 60 \ units^3\)

That's why the volume value exceeds 50 cubic units.

The inequality to show the values of [w] that will not exceed the weight limit of the elevator is w + 1643 ≤ 2000. On solving the inequality, we get w ≤ 357. The graph of the inequality is attached.

        ≤ : less than or equal to

        ≥ : greater than or equal to

        < : less than

        > : greater than

        ≠ : not equal to

Given is the maximum load for a certain elevator is 2000 pounds. The total weight of the passengers on the elevator is 1400 pounds. A delivery man who weighs 243 pounds enters the elevator with a crate of weight [w].

        1400 + 243 + w ≤ 2000

        w + 1643 ≤ 2000

        w + 1643 ≤ 2000

        w ≤ 2000 - 1643

        w ≤ 357

Therefore, the inequality to show the values of [w] that will not exceed the weight limit of the elevator is w + 1643 ≤ 2000. On solving the inequality, we get w ≤ 357. The graph of the inequality is attached.

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The number of acres in a landfill is given by the function B=8800. After 7 years, the landfill will have approximately 8,677 acres.

the number of acres refers to the area or size of a piece of land, typically measured in acres.

In the problem stated , it represents the size of the landfill.

To calculate the number of acres in the landfill after 7 years, we substitute the value of t = 7 into the function B = \(8800e^(-0.05t)\).

Plugging in the value, we get B =\(8800e^(-0.05 * 7)\).

Evaluating this expression, we find that B is approximately 8,677 acres.

Since the number of acres is a whole number, we round it to the nearest acre.

Therefore, after 7 years, the landfill will have approximately 8,677 acres.

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Exact value of the expression cos (2  \(tan^-^1 (\frac{4}{3})\)) = -7/25 . which is the cosine of the value of an angle 2 \(tan^-^1 (\frac{4}{3})\)) .

let  \(tan^-^1 (\frac{4}{3})\) = θ

so tan θ = 4/3

tan θ = p/b

Trignometic angle formula

so  p= 4k and b= 3k where k is a constant value.

h = \(\sqrt{p^2+b^2}\)

=> \(\sqrt{16k^2+ 9k^2}\)

=> 25k^2

=> 5k

where p is perpendicular , b is base and h is hypotenuse

so h= 5k

sin θ = p/h

=> 4k/5k

=> 4/5

cos  θ =b/h

=> 3k/5k

=> 3/5

and cos (2  \(tan^-^1 (\frac{4}{3})\)) = cos (2θ)

cos (2θ) = 2 \(cos^2\) θ -1

=> 2 * \(\frac{3}{5} ^2\) - 1

=> 18/25 -1

=> -7/25

so value of  cos (2  \(tan^-^1 (\frac{4}{3})\)) = -7/25

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The number of weeks (x) when you both donate the same number of items (y) is equal to 3 weeks.

In order to write and solve a system of linear equations to describe this situation, we would assign variables to the number of weeks and number of items respectively, and then translate the word problem into algebraic equation as follows:

Since you have already donated 14 items and plan to donate 3 more each week, a linear equation which represents this situation is given by;

D = 3x + 14         ........equation 1.

Since you have already donated 8 items and plan to donate 5 more each week, a linear equation which represents this situation is given by;

D = 5x + 8         ........equation 2.

Equating equation 1 and equation 2, we have:

3x + 14 = 5x + 8

5x - 3x = 14 - 8

2x = 6

x = 6/2

x = 3 weeks.

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The statement 3 more than 7 means, a number is 3 more than a given number. Since here the number is 7 so the required number will be 7+3= 10

In numerical more than simply refers to adding and less than refers to subtracting. If it is given that a number let's say Z is Y more than X then the value will be Z= X+Y

If a given number let's say Z is Y less than X then the value of Z will be

Z=X-Y

More than means add which gives us a bigger value. Less than means subtract which gives us a smaller value

So, 3 more than 7 means 7+3 = 10

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Answer:

Inequality equation:

0.03125x + 0.015625y ≤ 50 pounds

Step-by-step explanation:

We convert the ounces to pounds

1 ounce = 0.0625 pound

For the gold coin = 0.5 ounce

1 ounce = 0.0625 pounds

0.5 ounce = x

x = 0.5 × 0.00625 pounds

x = 0.03125 pounds

For the Silver coin = 0.25 ounce

1 ounce = 0.0625 pounds

0.25 ounce = x

x = 0.25 × 0.00625 pounds

x = 0.015625 pounds

The basket holds no more than 50 pounds of material.

Let the number of gold coins = x

The number of silver coins = y

Hence: our inequality equation:

0.03125x + 0.015625y ≤ 50 pounds

Answer:

hey! the picture isnt loading.

Step-by-step explanation:

The mean absolute deviation and mean square error of the following data  are  4.52 , 26.64.

What is mean ?

Mean is the ratio of sum of the observations and total number of observations.

first lets find the mean.

mean = 15+27+20+14+25+11+15+20+25+22 / 10

mean  = 19.4

data  = 15  distance from mean  = | 15-19.4 | = 4.4

data  = 27  distance from mean  = | 27-19.4 | = 7.6

data  = 20 distance from mean  = | 20-19.4 | = 0.6

data  = 14  distance from mean  = | 14-19.4 | = 5.4

data  = 25  distance from mean  = | 25-19.4 | = 5.6

data  = 11 distance from mean  = | 11-19.4 | = 8.4

data  = 15  distance from mean  = | 15-19.4 | = 4.4

data  = 20  distance from mean  = | 20-19.4 | = 0.6

data  = 25 distance from mean  = | 25-19.4 | = 5.6

data  = 22 distance from mean  = | 22-19.4 | = 2.6

The mean absolute deviation (MAD) is the mean of the distances from the mean.

MAD = 4.4 + 7.6 + 0.6 +5.4+5.6+8.4+4.4+0.6+5.6+2.6 / 10

=  45.2 / 10

MAD = 4.52

The mean sqaure error  is the mean of the  square of distances from the mean.

MSE = 4.4*4.4  + 7.6*7.6 + 0.6*0.6 +5.4*5.4+5.6*5.6+8.4*8.4+4.4*4.4+0.6*0.6+5.6*5.6+2.6*2.6 / 10

MSE = 19.36+57.76+0.36+29.16+31.36+70.56+19.36+0.36+31.36+6.76 / 10

MSE = 266.4 / 10

MSE = 26.64

Hence, The mean absolute deviation and mean square error of the following data  are 4.52 , 26.64.  

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a. The null and alternative hypotheses are;

\(H_0: p \geq 0.80\\H_1: p < 0.80\)

b. The decision rule is to reject the null hypothesis

c. The test statistic is -2.16

A. The null and alternative hypotheses for the test are:

\(H_0: p \geq 0.80\\H_1: p < 0.80\)

where p is the proportion of dentists who prefer the new chewing gum.

B. The decision rule is to reject the null hypothesis if the p-value is less than or equal to the significance level, α

C. The value of the test statistic is:

\($z = \frac{p - \hat{p}}{\sqrt{\frac{\hat{p}(1-\hat{p})}{n}}} = -2.16$\)

where p is the sample proportion of dentists who prefer the new chewing gum, and n is the sample size.

The p-value is the probability of observing a test statistic at least as extreme as the one observed, assuming that the null hypothesis is true. In this case, the p-value is 0.0307.

Since the p-value is less than 0.05, we reject the null hypothesis and conclude that there is evidence to suggest that the proportion of dentists who prefer the new chewing gum is less than 80%.

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Step-by-step explanation:

.5 / 1.5    is  1/3       (1/3)^2  = 1/9

Answer: 0.09

Step-by-step explanation:

0.5 ÷ 1.5 = 0.3 0.3squared = 0.09

Rectangle

A=bh

Triangle

A=bh/2

Circle

A=πr^2

Parallelogram

A=bh

Rhombus

A=pq/2

Trapezoid

A=((b1+b2)*h)/2

BTW...

b=base

h=height

r=radius

p,q=diagonals of rhombus

Answer:

34

Step-by-step explanation:

1+33=34

Answer:

a=-(c/b)/d

Step-by-step explanation:

a+c/b=d

d-a=c/b

-a=(c/b)/d

a=-(c/b)/d