Solve the equation.  = 0

A. - , 
B. - , 
C. - , 
D. - , 

Answer: A

Mathematics

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Graph the polar equation.r = -4 cos ?

A.

B.

C.

D.

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Solve the problem.A loaf of bread is removed from an oven at  and cooled in a room whose temperature is . If the bread cools to  in 20 minutes, how much longer will it take the bread to cool to 

A. 9 min B. 20 min C. 8 min D. 28 min

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Provide an appropriate response.If n is even, under what condition is  negative?

A. never B. when a is zero C. when a is negative D. when a is positive

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Solve the problem. Assume all variables represent nonnegative real numbers.For f(x) =  and g(x) =  - , find (f ? g)(x).

A. (f ? g)(x) = x30 - x28
B. (f ? g)(x) = x4 - x4
C. (f ? g)(x) = x5 - x3
D. (f ? g)(x) = x3 - x4

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Mathematics