Simplify the complex fraction.

A. 1
B.
C. 12
D.

Answer: D

Mathematics

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Solve the problem.The annual precipitation for one city is normally distributed with a mean of 267 inches and a standard deviation of 3.4 inches. In what percentage of years is precipitation in the city between 260.2 inches and ?

A. 97.5% B. 95% C. 68% D. 99.8%

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Mathematics

Write the standard form of the equation of the circle. 

A. (x + 4)2 + (y + 5)2 = 4 B. (x - 4)2 + (y - 5)2 = 4 C. (x - 4)2 + (y - 5)2 = 2 D. (x + 4)2 + (y + 5)2 = 2

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Mathematics

Multiply.( - w)( + w)

A. t - 2w - w2
B. t - w2
C. t - w
D. t + 2w - w2

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Mathematics

Graph the function.y = csc 

A.

B.

C.

D.

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Mathematics