Answer:
(D) 10 ft
Explanation:
Given:
Height = Base + 6
Area = 160
Area = Base * Height
160 = x * (x + 6)
Expand and rearrange:
x^2 + 6x - 160 = 0
Factor:
(x + 16)(x - 10) = 0
Solve for x:
x = -16 or x = 10
Discard the negative solution:
x = 10
9.4m questions
12.2m answers