Factor completely.32a4b - 98b3
A. 2b(4a2 + 7b)(4a2 - 7b)
B. 2b(4a + 7b)2
C. 2b(4a - 7b)2
D. Prime
Answer: A
Mathematics
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Solve the problem.Roberto invested some money at 6%, and then invested $5000 more than twice this amount at 12%. His total annual income from the two investments was $4500. How much was invested at 12%?
A. $3100 B. $26,000 C. $31,000 D. $15,000
Mathematics
Use the change of base formula and the properties of logarithms to rewrite the expression as a single logarithm in the indicated base.log81 x12 + log27 y9 - log9 w6, base 3
A. log3(x3 + y3 - z3)
B. log3 x3y3z3
C. log3 
D. log3 
Mathematics
Determine if the type of relation is linear, nonlinear, or none.
A. linear B. none C. nonlinear
Mathematics
Find the slope of the line.y = -2
A. 0 B. -2 C. undefined D. 2
Mathematics