Multiply.(9a - 1)2
A. 81a2 - 18a + 1
B. 9a2 - 18a + 1
C. 9a2 + 1
D. 81a2 + 1
Answer: A
Mathematics
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Represent the quantity by an integer.453 feet above sea level
A. 453 B. -453
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Evaluate the algebraic expression under the given conditions.b2 - 4ac for a = 8, b = -8, and c = -6
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Mathematics