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.
Let a = (-1, -2, -3) and 6 = (-4, 0, 1).
Find the component of b onto a.
Forces of 9 pounds and 15 pounds act on each other with an angle of 72°.
The magnitude of the resultant force
The resultant force has an angle of
pounds.
* with the 9 pound force.
The resultant force has an angle of
with the 15 pound force.
It is best to calculate each angle separately and check by seeing if they add to 72°.
=
Let (6,2,-5) and = (5,4, -6).
Compute the following:
บี.บี.
บี. นี =
2
−4(u. v) =
(-4). v=
ū. (-40)
(ū. v) v =
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