Find k such that the function is a probability density function over the given interval. Then write the probability density function.f(x) = k(16 - x); [0, 16]
A. 
; f(x) = 
(16 - x)
B. 256; f(x) = 256(16 - x)
C. 16; f(x) = 16(16 - x)
D. 
; f(x) = 
(16 - x)
Answer: A
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Find the missing numbers. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.
A. Cost Price: $75.22 % Markup on Cost: 24.9% B. Cost Price: $93.97 % Markup on Cost: 20.0% C. Cost Price: $93.97 % Markup on Cost: 24.9% D. Cost Price: $56.47 % Markup on Cost: 33.2%
Solve the problem.The width of a rectangle is x - 
feet and its area is 3x3 + 17x2 + 21x - 9 square feet. Write a polynomial that represents the length of the rectangle.
A. 3x2 + 18x - 27 ft
B. 3x2 + 18x + 27 ft
C. 3x2 + 16x + 
ft
D. 3x2 - 18x + 27 ft
Use the graph to find the average rate of change.
A. - 
B. 
C. -4
D. 4
Find the perimeter of the polygon described. Write any improper fractions as mixed numbers.A regular pentagon; one side is 11 ft
A. not enough information given B. P = 605 ft C. P = 44 ft D. P = 55 ft