12-15

12 All edges of cube care. expanding at a rare of 3 centimeters per second. How fast is the volume changing when each edge is 1 centimeter 6 ) 10 centimeters 13 A person dives from 30 - foot platform with an initial velocity of 5 feet per second ( upward ) a write the position , velocity, and acceler ation functions of the diver . b HOW long does it take to hit the water ? what is the diver's velocity at impact ? what is the diver's acceleration Impact ? The Profit P from selling me units of a product is given by P (x ) = 375 2 - 1.5 xe The sales are in creasing at a rate of rate of change 2 units per day Find the of the profit when Me = 50 units and (b) re = 100 units 15 The monthly demand and cost functions for the product given by P = 1700 - 0.167 C = 715, 000 + 240x a write the function for this product (b) Find the of change of the profit when monthly sales units