P(6 ? X ? 15)
The probability density function of X is f (x) = 81 / x4 over [3, ?) . Compute the following quantity.
0.117
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How do you find the ordered pair describing a point?
A) For the ordered pair (x,y), trace vertically to the vertical axis to find x, horizontally to the horizontal axis to find y. B) For the ordered pair (x,y), trace vertically to the horizontal axis to find x, horizontally to the vertically axis to find y. C) For the ordered pair (x,y), trace horizontally to the vertical axis to find x, vertically to the horizontal axis to find y. D) For the ordered pair (x,y), trace vertically to the vertical axis to find y, horizontally to the horizontal axis to find x. E) For the ordered pair (x,y), trace vertically to the horizontal axis to find y, horizontally to the vertical axis to find x.
Divide using synthetic division.
A. x4 + 3x3 + 3x2 + 3x + 3
B. x4 - 3x3 + 9x2 - 27x + 81
C. x4 + 3x3 + 9x2 + 27x + 81
D. x4 + 3x3 + 9x2 + 27x + 81 + 
Sunshine Inc. recently tightened its credit policy. The credit policy change resulted in an increase of $10 per day on a net present value (NPV) basis. Sunshine's required rate of return is 8 percent. What was the effect of the credit policy change on the firm's value? In your computations, assume a 360-day year.
A. $288 B. $12,500 C. $36,000 D. $45,000 E. $3,600
Solve the problem.The cost C of producing t units is given by C(t) = 2t2 + 7t, and the revenue R generated from selling t units is given by 
For what values of t will there be a profit?
A. t > 6 B. t > 8 C. t > 0 D. t > 7