Plans for a stadium are drawn on a coordinate grid. one wall lies on the line y=2x+3. a perpendicular wall passes through the point (4,-7). write the equation of the line that contains the new wall. a. y= (-1/2)x-5 b. y=2x-15 c. y=(1/2)x-9 d. y= -2x+1

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?