Apply the distributive property.9x(-6x2 - 7x + 7)
A. -54x2 - 63x + 63
B. -54x3 - 63x + 63
C. 54x3 + 63x2 - 63x
D. -54x3 - 63x2 + 63x
Answer: D
Mathematics
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Solve the problem.Given that 
? 7.17 × 1040, find an approximate value for 
.
A. 7.17 × 1042 B. 7.17 × 1038 C. 717 × 1042 D. 7.17 × 1041 E. 7.17 × 1039
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Simplify using the product-to-power rule.(-3x6)3
A. -27x9 B. 27x18 C. 27x9 D. -27x18
Mathematics
Solve the problem.During a drought, the water level in a river dropped 4 inches each day for 2 straight days. What was the change in the water level of the river during this period?
A. 8 in. B. -6 in. C. 6 in. D. -8 in.
Mathematics
Solve the equation by completing the square.x2 + 4x - 9 = 0
A. {-1 - 
, -1 + 
}
B. {-2 - 
, -2 + 
}
C. {-2 - 1
, -2 + 1
}
D. {2 + 
}
Mathematics