Solve the problem.Suppose that the power P (in watts) generated by a windmill is modeled by the equation 
where r is the radius (in meters) of the windmill and v is the wind speed (in meters per second). Estimate the power that a windmill with radius 0.63 meter can generate if the wind speed is 17.5 meters per second.
A. 121.550625 watts
B. 76.5768938 watts
C. 2127.13594 watts
D. 66.15 watts
Answer: C
Mathematics
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and the resistance is 
Round your answer to the nearest hundredth.
A. 1.32 A B. 3.1 A C. 4.1 A D. 0.32 A
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Find the exact value of the expression.
A. 
B. 
C. 
D. 2
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A. 6 B. 16 C. 8 D. 4
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