Answer:
A
Step-by-step explanation:
(f - g)(x)
= f(x) - g(x)
= 3x² + 4x - 8 - (2x - 5) ← distribute parenthesis by - 1
= 3x² + 4x - 8 - 2x + 5 ← collect like terms
= 3x² + 2x - 3 → A
Answer:
$120.96
Step-by-step explanation:
So the area of the room is 14*12. So the area of the room is 168ft^2. So now we multiply it by .72 because it costs .72 per square foot. So the cost is 120.96
Answer:
L = 13 m W = 11 m
Step-by-step explanation:
L = W + 2
area = L x W
143 = (W+2) * W
143 = W^2 + 2w
W^2 + 2W - 143 = 0
Use Quadratic Formula (a = 1 b = 2 c = - 143)
to find W = 11 m then L = 13
