P( X >1.5)
The random variable X has the probability density function
over ? .
Compute the quantity.
0.324653
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Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 160 pretzels B. 600 pretzels C. 300 pretzels D. 1.2 pretzels
Solve the problem.Assume that the sales of a certain appliance dealer are approximated by a linear function. Suppose that sales were $6500 in 1982 and $90,000 in 1987. Let 
represent 1982. Find the equation giving yearly sales S(x).
A. S(x) = 16,700x + 90,000 B. S(x) = 83,500x + 6500 C. S(x) = 16,700x + 6500 D. S(x) = 83,500x + 90,000
Answer the question.If n is an even number, then which of the following statements is true?
A. The equation xn + 1 = 0 has exactly one real root. B. The equation xn + 1 = 0 has at least one real root. C. The equation xn + 1 = 0 has n + 1 roots. D. The equation xn + 1 = 0 has n nonreal roots.
Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.F(x) = 4x5 - 7x4 + 5x3 - 6
A. 1 or 3 positive; 1 or 3 negative B. 1 positive; 1 or 3 negative C. 1 or 3 positive; 0 negative D. 0, 2, or 4 positive; 0 negative