An airplane factory manufactures airplane engine. The Unit cost c ( the cost in dollars to make each airplane engine) depends on the number of engines made. If x engines are made, then the Unit cost is given by the function c (x)-0.9x2 -306x +34.590. What is the minimum unit cost? Do not round your answer

How to solve a simultaneous equation involved with fractions?

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)