This preview shows pages 1–4. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full DocumentThis preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: and minima or inection points. 8. (5 points) Find the positive numbers x and y that satisfy xy = 100 and which minimize 2 x + y . 4 9. (10 points) A ball is thown up in the air at a speed of 96 feet per second from a point 48 feet above the ground. The height in feet s ( t ) of the ball at time t seconds is given by s ( t ) = 32 + 64 t16 t 2 . (a) When does the ball reach its maximum height? (b) What is the balls maximum height? (c) When does the ball hit the ground? (d) How fast is the ball going when it hits the ground? 10. (10 points) When x items are produced, the cost is C ( x ) = 100 x +10 , 000 and the price (demand curve) is p ( x ) = 400. 01 x . (a) What is the revenue R ( x )? (b) What is the prot P ( x )? (c) Find the production level x that maximizes prot, and the maximum value of prot....
View
Full
Document
This note was uploaded on 03/19/2012 for the course MATH 119 taught by Professor Randall during the Spring '12 term at Rutgers.
 Spring '12
 randall
 Calculus

Click to edit the document details