Factor by grouping.10x2 + 15x - 12x - 18
A. (10x + 6)(x - 3)
B. (5x - 6)(2x + 3)
C. (5x + 6)(2x - 3)
D. (10x - 6)(x + 3)
Answer: B
Mathematics
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Estimate the answer from the table or graph.The graph shows the average monthly cost of a wireless phone service for the years 2005 through 2012. Estimate the average monthly cost of this wireless phone service in 2005.
A. $35 B. $40 C. $25 D. $30
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Find the product.(x + 5)4
A. x4 + 20x3 + 150x2 + 500x + 625 B. x4 + 20x3 + 150x2 + 20x + 625 C. x4 + 20x3 + 250x2 + 500x + 625 D. x4 + 5x3 + 150x2 + 250x + 625
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Without using a graphing calculator, match the graph with its equation. h(x) = 2.6(1.5)x
A. 
B. 
C. 
D. 
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Determine whether the infinite geometric series has a limit. If a limit exists, find it.2 - 3 + 
- . . .
A. 3
B. 
C. No limit
D. 0
Mathematics