To find how high school students feel about hot lunches, Adam walks to the nearest high school and

gives a survey postcard to every twentieth student that enters the building. He asks the students to mail

the postcard in if they choose to participate in the study.

Why might the method used be biased?

Asking every twentieth student does not accurately represent the student population.

It is likely that student opinions in one particular high school do not accurately represent the opinions

of all high school students.

Students that take the time to complete the survey and mail it in probably feel strongly about hot

lunches.

DO NE

Answer:

16

Step-by-step explanation:

d =6

k =2

( 6 + 2) × 2

8 × 2 = 16

Answer:

i dont think ur question posted

Step-by-step explanation:

Answer:340$

Step-by-step explanation:

7 days x 5 weeks =35 days. 2975 dollars divided by 35 days equals 85 dollars a day. 85 dollars times 4 days equals 340 dollars.

Answer:

9. x = 7

10. x = 12

Step-by-step explanation:

Assume the two lines are parallel.

9. The corresponding angles are congruent.

9x - 3 = 7x + 11

2x = 14

x = 7

10. The alternate interior angles are congruent.

5x - 20 = 2x + 16

3x = 36

x = 12

Answer:

1: 136, 2: 55. 3: 53, 4: 70, 5: 61, 6: 112

Step-by-step explanation:

The value of x for each indicated angle are 136, 55, 53, 70, 61, and 112.

The angles that are in the same position on a given two parallel lines intersected by a transversal line are called the corresponding angles.

Corresponding angles are always equal.

We can also have alternate angles which are always equal.

We can also have alternate interior and exterior angles which are equal.

The angles on the same side make upto 180 degrees

We have,

1)

x and 136 are alternate angles.

So,

x = 136

2)

125 and x make a straight angle.

So,

125 + x = 180

x = 180 - 125

x = 55

3)

53 and x are corresponding angles.

So,

x = 53

4)

x and 110 are exterior angles on the same side.

This means,

x + 110 = 180

x = 180 - 110

x = 70

5)

x and 61 are opposite angles.

This means,

x = 61

6)

x and 112 are alternate exterior angles.

So,

x = 112

Thus,

The value of x is 136, 55, 53, 70, 61, and 112.

Learn more about corresponding angles here:

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Answer:

0.18ft.

Step-by-step explanation:

Answer:

C) d =rt

Step-by-step explanation:

Answer:

4th street

Step-by-step explanation:

Sorry but I only have an anwser for the first one

The measure of the angle created by the car's turning is 105°

Step-by-step explanation:

  Given :  a car is traveling east on 4th Street and turns onto King Avenue heading northeast.

We have to calculate the measure of the angle created by the car's turning.

Since, car is travelling in east direction on 4th street that is from A to D as shown below in image by arrow.

Then at point B, the car turns toward King Avenue heading northeast. that is B to C as shown below in image

Since, we need to calculate  the measure of the angle created by the car's turning that is measure of ∠ABC.

AD is a straight line, thus measure of any angle  at line segment AD is 180° as angles on one side of a straight line always add to 180 degrees

Therefore, at B,

∠ABC + ∠CBD = 180°

Aldo given , ∠CBD = 75°

Thus, the measure of ∠ABC is ,

⇒ ∠ABC  = 180° -∠CBD

⇒ ∠ABC  = 180° - 75°

⇒ ∠ABC  = 105°

Thus, the measure of the angle created by the car's turning is 105°

Answer: d

Step-by-step explanation: trust me ok

Answer:

28

Step-by-step explanation:

First, you start with 11-4, which equals 7.

Then, you multiply 7x8 which equals 56.

Lastly, you divided 56 by 2, getting 28.

Answer:

28

Step-by-step explanation:

8*(11-4)/2

8*(7)/2

56/2

28

Answer:

From the Vertex B, draw a line segment up 6 units or 6 boxes and then from the same Vertex B, draw a line going either left or right 4 units. Then connect everything together it will form a right triangle.

Answer:

Step 5 was not correct

Step-by-step explanation:

Tyra cannot take x and 6 common and then remove those valuse.

Answer:

The area of fenced surface is 7<2ft

A, B, and D      I hope this helps :)

Answer:

V=14

Step-by-step explanation:

Well its a supplementary angle if you add everything together.

We know theres a 90 degrees angle and a 34 degree angle.

90+34=124

124+4v=180

Since if you add everything up its a straight line

Solve the equation normally

56=4v

14=v

Answer:

9 minutes 60% of 15 is 9

Step-by-step explanation:

Answer:

10%

Step-by-step explanation:

[tex]\frac{5}{18}*\frac{9}{25}=0.1[/tex], so the probability is 10%. Hope this helps!

Answer:

3.6 for Sarah and 2.8 for David

Step-by-step explanation:

Tax: $1.06

Total: $16.25

xplanatiоn is in a fileAnswer:

Step-by-step explanation:

New bag of food will last until 2 1/2 weeks.

Proportions are defined as the concept where two or more ratios are set to be equal to each other.

Suppose we have two ratio p : q and r : s.

If both these ratios are proportional, then we can write it as p : q = r : s or p/q = r/s

Given that,

Amount of food fed to Great Dane by Deon in 1 week = 62 cups

He has a new bag with 160 cups of dog food.

He needs this food to last up to 2 1/2 or 2.5 weeks.

We have,

Amount of food needed in 1 week = 62 cups

Let Amount of food needed in 2.5 weeks = x cups

Ratio of 1 week to 62 cups and 2.5 weeks to x cups will be equal.

So using proportional concept, we can write this as,

1 / 62 = 2.5 / x

We have to find the value of x.

Doing the cross multiplication,

x = 2.5 × 62 = 155 cups

So the amount of food needed in 2.5 weeks = 155 cups.

But he has a new bag with 160 cups which is more than enough for 2.5 weeks, since only 155 cups is needed for 2.5 weeks.

Hence the new bag of food will last until 2 1/2 weeks.

Learn more about Proportions here :

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Answer:

4(2+5)

Step-by-step explanation:

Hope this helped!!!

Answer:

81/9

9/1

9 is your answer ☺️☺️☺️

you're answer ist going to Be B.9

3^4

3×3×3×3

81

3^2

3×3

9

81/9 = 9

Answer:

2.3

Step-by-step explanation:

if u see those parallel lines, the number is always positive

Answer:

The correct answer would be J; [tex]\frac{1}{2} r + 2[/tex];  

Step-by-step explanation:

Using the algebra;

[tex]\frac{1}{2} * r[/tex] = [tex]\frac{1}{2} r[/tex]

[tex]\frac{1}{2} * 4 = 2[/tex]

Altogether this would give "J" as the answer.

Hope this helps!

Answer:

J

Step-by-step explanation:

1/2(r+4) you distributing 1/2 to r and 4

Which basically divides them in half

Answer:

An inequality you can use is 3x + 28 > 200.