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azamat
3 years ago
11

A middle school principal wants to change the lunch menu at the school. The principal surveys the students to determine how the

students would feel about the changes. Which survey method will produce the best representative sample? A: survey every fifth student who rides in a car to schoolB: survey 3 randomly selected students from every homeroomC: survey every tenth seventh grade student during lunchD: survey 5 randomly selected students from every art, drama, and music class
Mathematics
2 answers:
Crazy boy [7]3 years ago
8 0

Answer:

Step-by-step explanation:

its 7/8

natita [175]3 years ago
4 0

Answer:

B: Survey 3 randomly selected students from every homeroom.

Step-by-step explanation:

This would be the best way to survey, because all the others have some sort of variable. The principle doesn't know who buys lunch and who doesn't, so why would he just ask kids who ride in a car as there are kids who ride buses, or only 7th grade students, so the best answer would be something that everyone has, like homeroom.

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Help please ASAP!!
Fittoniya [83]

Answer:

\displaystyle 702

Step-by-step explanation:

we are given a exponential function

\displaystyle f(x) =  {3}^{x + 1}  - 22

where x represents the number and f(x) represents the amount

we are also given that when x is 3 then f(x) is 59 likewise when x is 6 then f(x) is 2165

to figure out the average rate of change between 3 and 6 we can consider the average rate of change formula given by

\displaystyle m =  \frac{ f(x)_ {2} -  f(x)_{1} }{ x_{2} -  x_{1} }

substitute what we have:

\displaystyle m =  \frac{ 2165 -  59 }{6 - 3 }

simplify substitution:

\displaystyle m =  \frac{2106 }{3 }

simplify division:

\displaystyle m =  702

hence, the average rate of change between 3 and 6 is <u>7</u><u>0</u><u>2</u>

6 0
2 years ago
Read 2 more answers
in a survey 2,000 people who owned a certain type of car, 1,100 said they would buy that type of car again what percent of peopl
Gnom [1K]
The answer is 55% because 1,100 is 55% of 2,000
3 0
3 years ago
Read 2 more answers
A table measures x+4 inches long and 5x+12 inches wide. What is the perimeter of the table?
tangare [24]

Answer:

P = 12x +32

Step-by-step explanation:

The perimeter is found by using the formula

P =2(l+w)

We know the length and the width

P = 2(x+4 + 5x+12)

Combine like terms

P = 2(6x+16)

Distribute

P = 12x +32

5 0
3 years ago
Which values of m and b will create a system of equations with no solution? Check all that apply.
Law Incorporation [45]

Answer:

y = -2x + 1

 

Step-by-step explanation:

Then any equation of the form y = -2x + b, b≠1 will create a system with no solution.  Hence the values of m and b are m = -2, b ≠ 1.

hope i helped

8 0
3 years ago
Read 2 more answers
What is the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the
schepotkina [342]
Lateral Area of a cylinder is ; 2πR.H

R=12 mm and H= 15 mm


Then LATERAL area = 2π(12)(15) =48π ≈ 150 mm²
5 0
3 years ago
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