The function f(x)= -2x2+220x-750 gives the daily profit of a company if they manufacture x items. The company can manufacture 50, 55, or 60 items per day. How many items should be manufactured to make the most daily profit?

fx + 2x2 - 220x + 750 = 0

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet