Solve the problem.Fill in the missing blanks of this addition problem.

A. (a) 4, (b) 1, (c) 9, (d) 4
B. (a) 3, (b) 1, (c) 9, (d) 4
C. (a) 9, (b) 1, (c) 0, (d) 5
D. (a) 5, (b) 2, (c) 1, (d) 6


Answer: C

Mathematics

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Rationalize the denominator and simplify. ? ? Your answer should be a radical expression.

What will be an ideal response?

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Convert the angle from degrees to radians. Express the answer as a multiple of ?.-530°

A. - 
B. - 
C. - 
D. - 

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Suppose the average costs of a mining operation depend on the number of machines used, and average costs, in dollars, are given by , , where x is the number of machines used. Over what interval in the domain do average costs decrease? ?

A. ?
B.
C.
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E.

Mathematics