Factor by grouping.10x2 + 25x + 6x + 15
A. (10x + 3)(x + 5)
B. (10x - 3)(x - 5)
C. (5x + 3)(2x + 5)
D. (5x - 3)(2x - 5)
Answer: C
Mathematics
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Solve using the elimination method. Use a graphing calculator to check your answer. 9x - 4y = -4-4x - 2y = -2
A. (-1, 2) B. (0, 1) C. (0, 2) D. No solution
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Divide.  figure 1.png)
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Differentiate.
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Use a percent equation to solve the percent problem.What percent of 130 is 42.9?
A. 3.3% B. 33% C. 330% D. 0.33%
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