The function f is a probability density function defined on the given interval. Find .
?

?

A. ?
B. ?
C. ?
D. ?
E. ?


Answer: D

Mathematics

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Use a sum-to-product identity to rewrite the expression.cos 28° - cos 62°

A. 2 sin 45° cos 17° B. -2 cos 45° cos 17° C. 2 sin 45° sin 17° D. -2 sin 45° sin 17°

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Perform the indicated operation.The shape of a curve in a machined part results in the expression 6R - (3R - r). Simplify the expression.

A. 6R B. r - 3R C. 3R - r D. 3R + r

Mathematics

Graph the function.f(x) = 

A.

B.

C.

D.

Mathematics

Use a calculator to find the function value to four decimal places.sin 54°20'

A. 1.3934 B. 0.5588 C. 0.5831 D. 0.8124

Mathematics