Width = x
length = x+10
Area of deck = 144 square feet
Area = length * width
144 = x(x+10)
Solving for x in a quadratic:
x²+10x = 144
x²+10x-144 = 0
Factor:
(x+18)(x-8) = 0
Solving for x:
x = 8, x = -18
Dimensions cannot be negative, therefore x = 8, only.
Length = x + 10
Length = 18
Width = 8
Graphing it out yields the radius of the cylinder is 5 inches.
Answer:
V=129659.9491≈129659.95
Step-by-step explanation:
The answer for this question is 6
A: 112
b: 3 seconds
c: f(3) = 256
d: 7 seconds
