Students in a music appreciation class are given a list of 20 composers, 8 conductors, and 15 performing artists. They are assigned a two-page report on a composer, a conductor, and a performing artist. How many ways can a student select the persons to report on?
What will be an ideal response?
2400
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Perform the indicated operations.Estimate by rounding to the nearest hundred, then find the actual difference.5576
A. Estimate: 3800 Actual: 3841 B. Estimate: 4000 Actual: 3841 C. Estimate: 3900 Actual: 3841 D. Estimate: 3841 Actual: 3841
Solve.A science student watching a group of ants moving along a straight line determines that their position x along the line as a function of time t is given by 
Give an equivalent expression for x(t) by factoring out a common factor.
A. x(t) = t(t3 + 3t2 + 32t) B. x(t) = t(t2 + 3t + 32) C. x(t) = t(t3 + 3t2 - 16t + 48) D. x(t) = t(t2 + 3t - 32)
Find the value of (f ? g)' at the given value of x.Assume that f'(3) = 6 , g'(4) = -5, g(4) = 3, and y = f(x). What is y' at x = 4?
A. 18 B. -25 C. 6 D. -30
Suppose the average waiting time for a customer's call to be answered by a company representative (modeled by exponentially decreasing probability density functions) is 20 minutes. Find the median waiting time.
a. 13.86 minutes b. 17.86 minutes c. 15.86 minutes d. 16.86 minutes e. 14.86 minutes