Find the product.(x + 11)(x2 + 7x - 2)
A. x4 + 11x3 + 7x2 + 75x - 22
B. x3 + 18x2 + 79x - 22
C. x3 + 18x2 + 75x - 22
D. x3 + 18x2 + 79x + 22
Answer: C
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Solve the quadratic equation using the square root property. Express imaginary solutions in a + bi form.(x + 7)2 = -147
A. {7 ± 7i
}
B. {-7 ± 7
}
C. {-7 ± 7
}
D. {-7 ± 7i
}
Solve the problem.How many times more intense is an earthquake that measures 7.7 on the Richter scale than one that measures 4.2?
A. 50,118,723.4 B. 3162.27766 C. 3.5 D. 35
Solve the problem.Find the effective rate corresponding to the nominal rate. 6% compounded monthly. Round to the nearest hundredth.
A. 6.17% B. 6.12% C. 6.26% D. 6.23%
The graph shows sales in thousands of dollars for 1989 and 1990. Use it to answer the question. 
Estimate the sales in June 2006.
A. about $48 thousand B. about $50 thousand C. about $64 thousand D. about $52 thousand