Solve the problem.Water is falling on a surface, wetting a circular area that is expanding at a rate of 
How fast is the radius of the wetted area expanding when the radius is 
(Round your answer to four decimal places.)
A. 0.0089 mm/s
B. 112.4689 mm/s
C. 0.0559 mm/s
D. 0.0178 mm/s
Answer: A
Mathematics
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Solve the problem.Find the equation of the curve for which the second derivative is 6. The curve passes through (1, 5) with a slope of 13.
A. y = 3x2 + 7x B. y = 3x2 C. y = 3x2 + 7x - 5 D. y = 3x2 - 7x - 5
Mathematics
The graph of a function f is given. Use the graph to answer the question.Is f(40) positive or negative?
A. positive B. negative
Mathematics
Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 5
D. 
Mathematics
Multiply and simplify.
? 
A. 5m
B. 
C. 
D. 10
Mathematics