Given f(x)=4x2+19x−5 and g(x)=4x2−x .

What is (fg)(x) ?

xx+5 where x≠0, 5
−19x+5x where x≠0, 14
x+5x where x≠0, 14
−x19x−5 where x≠0, 519

THE RIGHT ANSWER IS THE
x+5x where x≠0, 14
I TOOK THE TEST

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

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