Verify which of the following are identities. 1)4 cos theta tan theta csc theta=4 2) 9 sec^2 theta/cos^2 theta-tan^2 theta/ cos^2 theta=2

Which equation can be used to solve for the unknown number? seven less than a number is thirteen. n-7=13 7-n=13 n+7=13 n+13=7

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

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.