Factor completely. If the polynomial is prime, state this.y2(y + 5) - 2y(y + 5) - 15(y + 5)
A. (y2 + 5)(y + 3)(y - 5)
B. (y + 5)(y2 - 15)
C. (y + 5)(y - 3)(y + 5)
D. (y + 5)(y + 3)(y - 5)
Answer: D
Mathematics
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Solve the problem.Evaluate the integral 
dy where x = sin t, y = cos t
A. - 
B. 
C. 
D. - 
Mathematics
Solve and check:
Mathematics
Solve the problem.A bead is formed from a sphere of radius 3 by drilling through a diameter of the sphere with a drill bit of radius 1. Find the volume of the bead.
A. 
?
B. 18?
C. 36?
D. 
?
Mathematics
Find the work done by F over the curve in the direction of increasing t.F = -8xi - 6x5y3j + (-7z + 9y2)k ; the path is 
where C1 is the straight line from 
to 
C2 is the straight line from (1, 0, 0) to (1, 1, 0), and C3 is the straight line from (1, 1, 0) to (1, 1, 1)
A. W = 0
B. W = - 4
C. W = - 
D. W = 1
Mathematics