Factor completely.30a3 - 12a2b - 25ab2 + 10b3
A. (30a2 - 5b2)(a - 2b)
B. (6a2 - 5b)(5a - 2b)
C. (6a2 + 5b2)(5a + 2b)
D. (6a2 - 5b2)(5a - 2b)
Answer: D
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Solve the problem.Mendel found no dominance in snapdragons with respect to red and white flower color. When pure red (RR) and pure white (rr) parents are crossed, the resulting Rr combination (one of each gene) produces second generation offspring with pink flowers. Suppose one of these second generation pinks is crossed with a pure red. What is the probability that the resulting snapdragon will have white flowers?
A. 0.25 B. 0.75 C. 0.5 D. 0
Solve the problem.Write an iterated triple integral in the order 
for the volume of the region in the first octant enclosed by the cylinder 
and the plane 
.
A. 
B. 
C. 
D. 
Write the number in scientific notation.79,000,000
A. 7.9 × 107 B. 7.9 × 106 C. 7.9 × 10-7 D. 7.9 × 10-6
Solve by elimination and check.x + y = -8x - y = 4
A. (2, -5) B. (-3, -5) C. No solution D. (-2, -6)