Factor completely.9x2 - 42xy + 49y2
A. Prime
B. (3x - 7y)(3x + 7y)
C. (3x + 7y)2
D. (3x - 7y)2
Answer: D
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Solve the problem.Find the volume of the region that lies inside the sphere 
and outside the cylinder 
A. 
B. 
C. 
D. 
Decide whether the statement makes sense. Explain your reasoning.Our utility company charges 10 cents per joule for the energy we use.
What will be an ideal response?
Find the general solution of the differential equation. Use C, C1, C2, . . . to denote arbitrary constants. If used, do not simplify hyperbolic functions.y'(t) = 10t4 - 12t2 + 8 - 12t-3
A. y = 2t5 - 4t3 + 8t - 6t-2 + C B. y = 2t5 - 4t3 - 8t - 6t-2 + C C. y = 2t5 - 4t3 + 8t + 6t-2 + C D. y = 2t5 - 4t3 + 8 + 6t-2 + C
Write the equation of the line with the given conditions.passing through (5, 2) and parallel to the line with equation 2x + y = 4
A. y = - 2x + 12
B. y = - 
x - 6
C. y = - 2x - 12
D. y = 2x - 12