Solve the equation.logx 49 = - 2
A. 
B. {-7}
C. 
D. {7}
Answer: A
Mathematics
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Find percent notation.0.031
A. 0.0031% B. 0.031% C. 31% D. 3.1%
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Tell whether the statement is true or false.{s, q, y, o, d} = {o, d, q, s, y}
A. True B. False
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Use a special product formula to simplify.(5a - 7c)(7c + 5a)
A. 5a2 - 7c2 B. 25a2 - 49c2 C. 25a2 - 70ac - 49c2 D. 25a2 + 70ac - 49c2
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Complete the sentence so the result is an identity. Let x be any real number. + tan2x = sec2x
A. 1 B. sin2x C. cos2x D. -1
Mathematics