Rewrite as a single logarithm using the quotient rule for logarithms. Assume all variables represent positive real numbers.logx 56 - logx 8

A. logx 448
B. logx 48
C. logx 7
D.

Answer: C

Mathematics

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Find the exact value of the expression.tan 135°

A. 1
B. -1
C. - 
D.

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Solve the problem. Round to the nearest hundredth, if necessary.The average weekly income of teachers in one school district is $840 with a standard deviation of  Find the percentage of teachers earning more than $960 a week?

A. 1.09% B. 13.79% C. 84.13% D. 86.21%

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Mathematics

Solve the system of equations. 2x2 + y2 = 173x2 - 2y2 = -6

A. (1, 3), (-1, -3) B. (2, 3), (2, -3), (-2, 3), (-2, -3) C. (1, 3), (1, -3), (-1, 3), (-1, -3) D. (2, -3), (-2, 3)

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Mathematics

Differentiate.f(x) = (3 - x)

A. f'(x) = x2 - 1
B. f'(x) =   + 1
C. f'(x) = -  - 1
D. f'(x) =  + 3

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Mathematics