Find an equation for the graph.

A. y = 3 cos 2x
B. y = 3 cos x
C. y = 2 cos 3x
D. y = 2 cos x

Answer: C

Mathematics

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Solve the equation. +  = 

A. ?
B. {8}
C.
D. {-8}

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Answer yes or no.Is 13 a solution to the equation 21 - x = 8?

A. Yes B. No

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Graph the function.f(x) = e2x

A.

B.

C.

D.

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Simplify the fraction. If the fraction is already simplified, so state.

A. simplified
B.
C. 32
D. 8

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Mathematics