Professor wants to determine information about the internet usage of middle school students in one state. a sample of 500 boys and girls from middle schools across the state were asked, “how do you access the internet when you are not at school? ” which best explains why the sample can be used to determine statistics that apply to the population? a-the sample represents the population. b-the sample is larger than the population. c-each person in the population knows at least one person included in the sample. d-each person in the sample has internet access while they are not at school.

A-The sample represents the population.

Step-by-step explanation:

We are given that,

The professor surveyed a sample of 500 boys and girls from middle school across the state.

Since, we know that,

Since, the professors wants to determine the information about the usage of middle school students in the state.

Thus, The sample can be used to determine the statistics applied to the population because 'the sample represents the population'.

A.‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎

sin3a=12/15

step-by-step explanation:

since one side was multiplied by 3 the other side must also be multiplied by 3.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10