A=1 and 2
B=2 and 4
C=1,2,7 and 14
D=1,2,4,and 8
Answer:
A
Step-by-step explanation:
to find (g ○ f)(3) , evaluate f(3) and substitute the value obtained into g(x)
f(3) = | 3 + 2 | = 5 , then
g(5) = - 5² = - 25
Answer:
6+2
Step-by-step explanation:

Distribute the negative in.
<u>Negative</u><u> </u><u>Multiply</u><u> </u><u>Negative</u><u> </u><u>must</u><u> </u><u>equal</u><u> </u><u>Positive</u><u>.</u>

Answer:
Fraction=1/5=0.2
Step-by-step explanation:
If the student is 4m away from the school bell and moves 20m away, it means that he is 5 times more distant from the school bell and therefore should listen 5 times less, that is, 1/5 of the original sound.
Note: this as long as the initial environment conditions of 4m are the same at 20m