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

Answers

Answer 1

The research method used might be biased because B. It is likely that student opinions in one particular high school do not accurately represent the opinions of all high school students.

What is a research?

It should be noted that a research simply means an inquiry to understand a topic better.

In this case, the research method used might be biased because it is likely that student opinions in one particular high school do not accurately represent the opinions.

The correct options are B and C.

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Answer 2

Answer:

B. It is likely that student opinions does not accurately represent the student population

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

Step-by-step explanation:

'22 edg


Related Questions

PLEASE HELP

Select all the equations equal to 5x+30x-15x

A.5(x+6x-3x)
B.(5+30-15) * x
C.x(5+30x-15x)
D.5x(1+6-3)
E.5(x+30x-15x)

Answers

A, B, and D      I hope this helps :)

A B And D are correct ones

Evaluate the Expression.

║-2.3║

Answers

Answer:

2.3

Step-by-step explanation:

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

(File attached) Find the value of each indicated angle. This is transversals.

Answers

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.

What are corresponding angles?

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.

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Tyra solved the quadratic equation x2-10x -24 = 0by factoring. Her work is shown below:
Step 1: x2-10x -24 = 0
Step 2: x2-4x - 6x - 24 = 0
Step 3: (x2-4x) + (-6x - 24) = 0
Step 4: x(x-4) - 6(x - 4)=0
Step 5: (x-4)(x-6)=0
Step 6: x-4 = 0, x-6 = 0
Step 7: x=4 or x = 6
Step 8: 4, 6

Tyra did not find the correct solutions. Investigate the steps, decipher her mistakes, and explain how to correct Tyra’s work.

Answers

Answer:

Step 5 was not correct

Step-by-step explanation:

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

I NEED HELP FAST! Find the surface area of the shape below

Answers

Answer: d

Step-by-step explanation: trust me ok

d i hope this helps:)

5 weeks at a timeshare condominium costs $2975. Assuming the condominium can be rented for less than a full week, how much will 4 days cost at the same rate

Answers

4 days will cost $2380

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.

Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!

Answers

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

Solve for the value of v.

Answers

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

HELP ASAP!
A right triangle has a vertex at point B, a height of 6 units, and a base of 4 units.

Use the Polygon tool to draw the triangle.

Each segment on the grid represents 1 unit.

Answers

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.

A.) 660
B.) 418.93
C.) 320.1

Answers

418.93 which is answer choice b

8x(11-4) divided by 2

Answers

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

Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!

Answers

The answer would be D. M(total of backpack and books) = 0.8(backpack empty) + X(weight of books)
the correct answer is c

helpppppppppppppppppppp.................

Answers

I dont know what is the answer

While bowling, Sarah made 5 strikes out of her last 18 frames. David made 9 strikes out of his last 25 frames. What is the probability that they both get a strike on their next frame?

Answers

Answer:

10%

Step-by-step explanation:

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

Please mark brainliest!

Answer:

3.6 for Sarah and 2.8 for David

Step-by-step explanation:

substitute the variable and solve the problem
d=6 and k=2
(d+k) x 2

answer:
expression or equation:

Answers

Answer:

16

Step-by-step explanation:

d =6

k =2

( 6 + 2) × 2

8 × 2 = 16

If the height of each prism is 10 cm, what is the surface area of the rectangular prism?

Surface Area = 2lw + 2hw + 2lh
(Geometry)

Answers

the surface area is 15 cm

Answer this quick!!!!
A $15.20 DVD. There is a 7% sales tax.


How much is tax?


What is the total cost?

Answers

Tax: $1.06

Total: $16.25

Tax: $1.64

Total: $16.26

2.5m 2.5m 2.5m 7m 11m 9m Find the surface of the area of each solid figure. Surface of a cube s= Surface of a retangle prism s=

Answers

Answer:

i dont think ur question posted

Step-by-step explanation:

Gregg practiced his guitar for 15 minutes. He has practiced 60% of the amount of time he needs to practice today. What is the total time Gregg needs to practice playing his guitar today?

Answers

Answer:

9 minutes 60% of 15 is 9

Step-by-step explanation:

What is the formula for distance?
A. d = r + t
B. d = r – t
C. d = rt
D. d= r/t

Answers

Answer:

C) d =rt

Step-by-step explanation:

Answer: C

Explanation: none

What is the area of the triangle?

Answers

Answer:

0.18ft.

Step-by-step explanation:

Which expression is equivalent to 8 + 20 ?

Answers

Please send the choices and I’ll be happy to help you any further. But for now 8+20=28. If any of the choices are 28. That’s the answer

Answer:

4(2+5)

Step-by-step explanation:

Hope this helped!!!

PLEASE HELP, NO LINKS OR DON’T ANSWER JUST FOR POINTS OR YOU WILL BE REPORTED! WILL GIVE BRAINLIEST!!

Answers

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

Question: Find the equivalent number.


(I will do brainlisit )

Answers

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

If a tree grew 3 feet in 5 years and continued growing at the same rate, how much would the tree grow in 30 years?

Answers

The tree would grow 18 feet in 30 years

A tennis court is surrounded by a fence so that the distance from each boundary of the tennis court to the fence is the same. If the tennis court is 72 feet long and 36 feet wide, what is the area of the entire surface inside the fence?

The area of fenced surface is ____ ^2 ft

Answers

Answer:

The area of fenced surface is 7<2ft

Deon feeds his Great Dane 62 cups of dog food per week. He has a new bag with 160 cups of dog food. Deon will pick up more dog food at the pet store in 2 1··2weeks. Will the new bag of food last until then? Show your work.

Answers

xplanatiоn is in a fileAnswer:

Step-by-step explanation:

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

What is Proportion?

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.

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2.) Three friends earned more than $200 washing cars. They paid their parents $28 for supplies and divided the rest of the money equally. Write an inequality to find possible amounts each person earned?

Answers

Answer:

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

1.Suppose a car is traveling east on 4th Street and turns left onto King Avenue heading northeast What is the measure of the angle created by the car's turning?

2.Suppose a car is traveling southwest on King Avenue and turns left onto 3rd Street What is the measure of the angle created by the car's turning?

3.Suppose a car is traveling northeast on King Avenue and turns right onto 3rd Street. What is the measure of the angle created by the car's turning? ​

Answers

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°

Dani experimented with a dollar bill and the copy machine a dollar bills length is 6.1 inches and width is 2.6 inches, she reduced the dollar bill so its length was 80% of its original size. What is the length of the copy of the dollar bill? please show how you figured it out :)

Answers

Hi, make sure not to click links
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