Let y be defined implicitly by the equation –4x^3 + y^4 – 8x + 5y = 99. Use implicit differentiation to find dy/dx.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

How can (square root of 25) ^2 be rewritten?

For the inequality |c| < |d| to be true, which of the following must be true?