Solve the equation.r2 + 9 = -6r

A. 3
B. -3, 3
C. 0, -3
D. -3

Answer: D

Mathematics

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Find the extreme values of the function subject to the given constraint.  

A. Maximum: none; minimum:    at  
B. Maximum: none; minimum:    at  
C. Maximum: none; minimum:    at  
D. Maximum: none; minimum:    at  

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Mathematics

Is the following correspondence a function??    

A. Yes B. No

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Mathematics

Write in decimal notation.2.428 × 10-5

A. 0.000002428 B. -242,800 C. 0.00002428 D. 0.0002428

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Mathematics

Simplify each side of the equation, if possible. Then solve the equation.p - 12 =  + 6

A. p = 15
B. p = 
C. p = 
D. p = 21

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Mathematics