Average profit. Sparkle pottery has determined that the cost, in dollars, of producing x vases is given by C ( x ) = 4300 + 2.1 x 0.6 . If the revenue from the sale of x vases is given by R ( x ) = 65 x 0.9 , find the rate at which average profit per vase is changing when 50 vases have been made and sold.
Average profit. Sparkle pottery has determined that the cost, in dollars, of producing x vases is given by C ( x ) = 4300 + 2.1 x 0.6 . If the revenue from the sale of x vases is given by R ( x ) = 65 x 0.9 , find the rate at which average profit per vase is changing when 50 vases have been made and sold.
Average profit. Sparkle pottery has determined that the cost, in dollars, of producing x vases is given by
C
(
x
)
=
4300
+
2.1
x
0.6
.
If the revenue from the sale of x vases is given by
R
(
x
)
=
65
x
0.9
, find the rate at which average profit per vase is changing when 50 vases have been made and sold.
Use the properties of logarithms, given that In(2) = 0.6931 and In(3) = 1.0986, to approximate the logarithm. Use a calculator to confirm your approximations. (Round your answers to four decimal places.)
(a) In(0.75)
(b) In(24)
(c) In(18)
1
(d) In
≈
2
72
Find the indefinite integral. (Remember the constant of integration.)
√tan(8x)
tan(8x) sec²(8x) dx
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