The graph of a function f is given. Use the graph to answer the question.How often does the line y = -10 intersect the graph?
A. once
B. twice
C. three times
D. does not intersect
Answer: D
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Find the length of the curve.y = (4 - x2/3) 3/2 from x = 1 to x = 8
A. 6 B. 12 C. 18 D. 9
Provide an appropriate response.Fill in the blank with "always greater than," "sometimes greater than," "always less than," or "cannot be determined," whichever response is correct. When dividing a positive fraction by 
, the answer is 
the fraction.
A. always greater than B. always less than C. sometimes greater than D. cannot be determined
Solve the problem.The radius, r, of a sphere can be found using the formula 
where S is the surface area. If the surface area is 13,760 square inches, what is the radius? (Use 3.14 for ?, and round your answer to the nearest tenth of an inch.)
A. 66.2 in. B. 58.7 in. C. 33.1 in. D. 103.9 in.
Solve the problem.The decay of 989 mg of an isotope is given by 
where t is time in years. Find the amount left after 40 years.
A. 205 B. 410 C. 401 D. 967