Answer:
B. -4
Step-by-step explanation:
We want to find x such that f(x)=18.
We need to therefore solve 9x+54=18 forx.
9x+54=18
Divide both sides by 9:
(9x+54)/9=18/9
9x/9+54/9=18/9
Simplify:
x+6=2
Subtract 6 on both sides:
x=2-6
Simplify
x=-4.
So f(-4) should have value 18.
Let's check.
f(x)=9x+54
f(-4)=9(-4)+54
f(-4)=-36+54
f(-4)=18
So the answer is B.
Answer:
The expression is not factorable with rational numbers.
Step-by-step explanation:
It is about 6.24 so it rounds to 6
Answer:
r = 5
Step-by-step explanation:
The formula for volume of a cone is 
h = 6
V = 50π
r = 5
Answer:
14%, 1/4, 1.4
Step-by-step explanation:
14% = .14
1/4 = .25
1.4 = 1.4
