Factor by grouping.18a3 + 12a2b - 15ab2 - 10b3
A. (18a2 - 5b2)(a + 2b)
B. (6a2 - 5b2)(3a + 2b)
C. (6a2 + 5b2)(3a - 2b)
D. (6a2 - 5b)(3a + 2b)
Answer: B
Mathematics
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Solve the problem.The power P (in W) generated by a particular windmill is given by 
where V is the velocity of the wind (in mph). Find the instantaneous rate of change of power with respect to velocity when the velocity is 
A. 5.0 W/mph B. 2.3 W/mph C. 0.3 W/mph D. 10.7 W/mph
Mathematics
Perform the indicated operations:
a. x(x + 2y) + y(3x + 2) b. 4(2x2 - 9x) - 3x(x + 3) c. 3x(-3x2 - 4) - 2x2(7x - 2) d. 5(x2 + 3x + 2)
Mathematics
Graph the function.y = 6 csc (3x)
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
= 
+ 
A. 
B. -3
C. - 
D. 3
Mathematics