Find the exact value of the expression.csc 840°

A. -2
B.
C. - 
D.

Answer: D

Mathematics

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Divide, when possible.

A. 1246 B. 1256 r20 C. 1251 r12 D. 1236

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Solve the equation. Find all real solutions.2(x - 1)2 + 5(x - 1) + 2 = 0

A. -1, 1
B. -1,  
C. -1,  
D. 0, 1

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Find the unknown coordinate so that the ordered pair is a solution to the given equation.y = x + 4, ( ? , 6)

A. 14
B.
C.
D. 7

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Simplify the radical expression. Assume all variables represent nonnegative real numbers.

A. 6
B. 72x 
C. 6x
D. 6x

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Mathematics