This preview shows page 1. Sign up to view the full content.
Unformatted text preview: nds
is given by y (t) = −16t2 − 32t + 128.
(a) How fast is the ball traveling after .5 seconds?
(b) How fast is the ball traveling when it hits the ground? 8. (15 points) A company manufactures and sells widgets. The monthly cost (in thousands of dollars) of
manufacturing x (thousand) widgets is given by C (x), and the revenue is given by R(x).
C (x) = 50 x + 10
R(x) = 40x − x2
The company currently produces 10 thousand widgets a month.
(a) Find the marginal revenue function. If production increases, will revenue increase or decrease?
(b) What is the current proﬁt?
(c) What is the current marginal proﬁt? Should the company increase or decrease production?...
View Full Document