Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary. = 

A. x = 0.13
B. x = 20
C. x = 2
D. x = 8.0

Answer: C

Mathematics

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Solve the problem.Find the foci and asymptotes of the following hyperbola: -  = 1

A. Foci: (0, -9), (0, 9); Asymptotes: y = x, y = - x
B. Foci: (-9, 0), (9, 0); Asymptotes: y = x, y = - x
C. Foci: (0, -15), (0, 15); Asymptotes: y = x, y = - x
D. Foci: (-15, 0), (15, 0); Asymptotes: y = x, y = - x

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Provide an appropriate response.Is x3y7 a common factor of x4y9 and x2y7?

A. No B. Yes

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Rewrite the following in exponential form. Do not evaluate.   

A. 5
B. 4 
C.
D. 4

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Mathematics

Solve for the variable.x +  = 12

A. 23
B.  
C.  
D.

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Mathematics