Identifying Confounding Variables Ty
C C
A vitamin company wants to evaluate whether its vitamins Which of the following could be a potential confounding
help to improve student energy levels. To conduct the variable in the experiment? Select all that apply
experiment, the company randomly selects 100 college
students and instructs them to eat healthy, have a full
The vitamin
nights sleep, and take one vitamin each day for 6
The vitamin company
months. Results showed an association between taking
the vitamin and energy levels.
Sleep patterns
Time spent exercising
Time spent studying
Quality of diet
Class attendance

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg

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

answer for #1 is c

answer for #2 is d

can i get brainliest

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1