Answer:
A
Step-by-step explanation:
(fg)(x) = f(x) × g(x)
= (x - 8)(x² + x - 1)
Each term in the second factor is multiplied by each term in the first factor, that is
x(x² + x - 1) - 8(x² + x - 1) ← distribute both parenthesis
= x³ + x² - x - 8x² - 8x + 8 ← collect like terms
= x³ - 7x² - 9x + 8 → A
There are no restrictions on the domain.
V = lwh
15(10.5)(4.5) = 708.75
180 cubic units
Explanation:
To find the volume of a rectangular prism, multiply together length • width• height.
Height- 5
Width- 9
Length- 4
5 x 9 x 4= 180
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