The answer is $5.40. hope this helped <3
Answer:
I am pretty sure its the first one
H²+10h+21 = 0
h²+3h+7h+21 = 0
h(h+3)+7(h+3) = 0
(h+3)(h+7) = 0
h+3=0
h = -3
h+7=0
h=-7
Answer: Option 'C' is correct.
Step-by-step explanation:
Since we have given that
Length of ice cream cone = 6 inch
Diameter of cone = 2 inches
Radius of cone is given by

But according to question, it is cut 0.25 inches from the base and this cut into cylinder and cone.
Since it was cut so close to the base.
So, Height of the cylinder = 0.25 inches
As we know the formula for "Volume of cylinder ":

Hence, Option 'C' is correct.
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.