Factor completely.18a4 - 98b2
A. (6a2 + 14b)(3a2 - 7b)
B. 2(3a2 + 7b)(3a2 - 7b)
C. 2(3a2 - 7b)2
D. 2(3a2 + 7b)2
Answer: B
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B. 
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Give the reciprocal of the given number. ? 3x ?
A. 
B. 
C. 
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Solve the problem.The following table shows the sales generated by the transportation industry, in billions of dollars, in Country Y from 1993 through 1997. Predict the sales generated by the transportation industry in 2003 by using regression to find a quadratic function that fits the data. (Round answer to the nearest ten.)
A. 360 B. 380 C. 370 D. 230
Use scientific notation to perform the following operations. Leave your answer in scientific notation.(4 × 104) × (2 × 102)
A. 8.0 × 107 B. 8.0 × 106 C. 8.0 × 108 D. 8.0 × 105