In the 30-60-90 triangle below, side s has a length of
hypotenuse has a length of

Use the matrix-column representation of the product to write each column of ab as a linear combination of the columns of a.

He concluded that a heavier object dropped from the same height as a lighter object will land

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.