Simplify the expression.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the derivative.y = 13x-2 - 5x3 - 7x
A. -26x-3 - 15x2 B. -26x-1 - 15x2 C. -26x-1 - 15x2 - 7 D. -26x-3 - 15x2 - 7
Mathematics
Find all real numbers that satisfy the equation.cos x = - 
A. 
B. 
C. 
D. 
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Under certain conditions, the power P, in watts per hour, generated by a windmill with winds blowing v miles per hour is given by P(v) = 0.015v3. Find the power generated by 12-mph winds.
A. 2.16 watts per hr B. 0.0000405 watts per hr C. 1728 watts per hr D. 25.92 watts per hr
Mathematics