Revenue and profit functions. A company manufactures 10- and 3-speed bicycles. The weekly demand and cost functions are p = 230 − 9 x + y q = 130 + x − 4 y C ( x , y ) = 200 + 80 x + 30 y where $ p is the price of a 10-speed bicycle. $ q is the price of a 3-speed bicycle, x is the weekly demand for 10-speed bicycles, y is the weekly demand for 3-speed bicycles, and C ( x , y ) is the cost function. Find R x ( 10, 5) and P x (10, 5), and interpret the results.
Revenue and profit functions. A company manufactures 10- and 3-speed bicycles. The weekly demand and cost functions are p = 230 − 9 x + y q = 130 + x − 4 y C ( x , y ) = 200 + 80 x + 30 y where $ p is the price of a 10-speed bicycle. $ q is the price of a 3-speed bicycle, x is the weekly demand for 10-speed bicycles, y is the weekly demand for 3-speed bicycles, and C ( x , y ) is the cost function. Find R x ( 10, 5) and P x (10, 5), and interpret the results.
Solution Summary: The author calculates the value of R_x(10,5)=60, which means the company revenue will increase 60 when the weekly demand for 10-speed bicycles x increases-
Revenue and profit functions. A company manufactures 10- and 3-speed bicycles. The weekly demand and cost functions are
p
=
230
−
9
x
+
y
q
=
130
+
x
−
4
y
C
(
x
,
y
)
=
200
+
80
x
+
30
y
where $p is the price of a 10-speed bicycle. $q is the price of a 3-speed bicycle, x is the weekly demand for 10-speed bicycles, y is the weekly demand for 3-speed bicycles, and C(x, y) is the cost function. Find Rx( 10, 5) and Px(10, 5), and interpret the results.
During busy political seasons, many opinion polls are conducted. In apresidential race, how do you think the participants in polls are generally selected?Discuss any issues regarding simple random, stratified, systematic, cluster, andconvenience sampling in these polls. What about other types of polls, besides political?
No chatgpt pls will upvote
Chapter 7 Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
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