Answer:
Step-by-step explanation:
Answer:
14%
Step-by-step explanation:
A change from 50 to 57 represents a positive change (increase) of 14%
Percent change =
× 100%
× 100% = 14
Answer:
C) 
Step-by-step explanation:
By the cos double angle formula, we know
Substituting
into the formula, we get
.
The answer is C.
Answer:
h(-3)=9
Step-by-step explanation:
hope this helps
y = x + 2
y = -3x
Do y = -3x in y = x + 2
y = x + 2
-3x = x + 2
-3x - x = 2
-4x = 2
x = -2/4
x = -1/2
Now put x = -1/2 in y = -3x
y = -3x
y = -3.(-1/2)
y = 3/2