Answer:
a. 2
b. 3
c. 3x^2+9x+15
d. 257
Step-by-step explanation:

When a function is written like that the value in the parenthesis is what you use to replace the x inside the expression.
a. f(-1) means the value of function "f" when x = -1

b. "f" when x = -2 + "g" when x = -2

c. multiply for 3 each function

d. "g" when x = 4 then "f" when x = g(4)

Answer:
The first one (A) is the answer I got!
Step-by-step explanation:
Answer:
D.
69 feet
Step-by-step explanation:
Substitute 1 into the function for t and solve.
h( 1 ) = −16 ( 1 ) 2 +70( 1 )+15 h( 1 ) = 69h left parenthesis 1 right parenthesis equals negative 16 left parenthesis 1 right parenthesis squared plus 70 left parenthesis 1 right parenthesis plus 15 line break h left parenthesis 1 right parenthesis equals 69
Answer:
The simplified version of this expression is
-2x + 15
Hope this helps!!
Answer:
5m - 5n - 1
Step-by-step explanation:
(3m - 4n - 7) - (8m + n - 6) =
3m - 4n - 7 - 8m - n + 6 =
5m - 5n - 1