Answer:
-28
Step-by-step explanation:
-4(7)=-28
4/5 x = 64
multiply both sides by 5/4
5/4 *4/5 x = 5/4 * 64
x = 80
<span> f(x) = x^2 + 4x − 1 and g(x) = 5x − 7
</span>(fg)(x) = (x^2 + 4x − 1)(5x − 7)
(fg)(x) = 5x^3 + 20x^2 - 5x - 7x^2 - 28x + 7
(fg)(x) = 5x^3 + 13x^2 - 33x + 7
answer is C. third choice
(fg)(x) = 5x^3 + 13x^2 - 33x + 7
The answer is -9 + 9i. Hope this helped.
967.61 inches is the correct answer