Factor out the greatest common factor.3x2y5 + 6x2y4
A. y + 2
B. 3x4y2(y + 2)
C. 3x2y4(y + 2)
D. x2y4(3y + 2)
Answer: C
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Give a geometric description of the set of points whose coordinates satisfy the given conditions.(x - 1)2 + (y - 8)2 + (z - 5)2 < 16
A. All points on the lower hemisphere centered at (1, 8, 5) B. All points outside the lower hemisphere centered at (1, 8, 5) C. All points within the lower hemisphere centered at (1, 8, 5) D. No set of points satisfy the given relations.
Use an Euler diagram to determine whether the argument is valid or invalid.A square is a parallelogram.A square has four sides. Therefore, A parallelogram has four sides.
A. valid B. invalid
Solve the inequality, then graph the solution.11t + 12 ? 10t + 21
A. t < 11 
B. t > 11 
C. t ? 9 
D. t ? 9
Find the limit of the sequence if it converges; otherwise indicate divergence.an = 
A. ln 2 B. e2 C. 0 D. Diverges