Solve the problem.The formula for the circumference of a circle is C = 2?r. The circumference is a function of the radius. Write the function using function notation. Determine the circumference when the radius is 
A. C(r) = 2?r
100? in
B. C(?) = 2?r
100? in
C. C(?) = 2?r
20? in
D. C(r) = 2?r
20? in
Answer: D
Mathematics
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Divide and simplify.
÷ 
A. 
B. z + 2
C. 
D. 
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Convert to an exponential equation.log100.0000001 = -7
A. 0.0000001-7 = 10 B. -710 = 0.0000001 C. 10-7 = 0.0000001 D. 0.000000110 = -7
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Match the graph to one of the listed functions. 
A. f(x) = -x2 + 10x B. f(x) = x2 + 10 C. f(x) = -x2 + 10 D. f(x) = x2 + 10x
Mathematics
Find the product.
A. 355,514 B. 355,534 C. 355,624 D. 355,524
Mathematics