Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation x = -10p + 280, 0 ? p ? 28.What quantity x maximizes revenue? What is the maximum revenue?
A. 70; $1,470
B. 210; $1,470
C. 280; $1,960
D. 140; $1,960
Answer: D
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Find the gradient field of the function.f(x, y, z) = (x7y2 - y6z3)e-z2
A. ?f = 7x6y2e-z2i + (2x7y - 6y5z3)e-z2j + y2ze- z2[y4z(2z2 - 3) - 2x7]k B. ?f = 7x6i + (6y5 - 2y)j + 2z4e-z2k C. ?f = 7x6y2e-z2i + (2x7y - 6y5z3)e-z2j + (3 - 2z2)y6z2e-z2k D. ?f = 7x6y2i + (6y5z3 - 2x7y)j + (2z2 - 3)y6z2k
Solve the logarithmic equation.log25x =
A. 5 B. 33,554,432 C. 625 D. 0.00000003
The amount A of money on deposit for t years in an account earning simple interest is a linear function of t. Express that function as an equation if when
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Change the given form into the decimal form.
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