Find the standard deviation of the probability density function to the nearest hundredth.f(x) = ; [3, 5]

A. 0.56
B. 0.61
C. 0.54
D. 0.50


Answer: A

Mathematics

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Solve the equation. = 

A. {- 5, - 1}
B. {- 5, }
C. ?
D. {5, 2}

Mathematics

Solve the problem.The outside of a picture frame has a length which is 3 cm more than width. The area enclosed by the outside of the picture frame is 130 square cm. Find the width of the outside of the picture frame.

A. 13 cm B. 10 cm C. 11 cm D. 16 cm

Mathematics

Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = ,   < ? < ?Find cos(2?).

A. - 
B. - 
C.
D.

Mathematics

Solve the formula for the indicated letter. Assume that all variables represent nonnegative numbers.v2 = 2as for v

A. = ±2a 
B. = ±
C. = ± 
D. = ±

Mathematics