C(x) = 0.1x^2 - 44x + 21,037.
minimize

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x