Write the expression as a single logarithm. Leave your answer in simplest form without negative or fractional exponents.10 logc 9 + 2 logc 3

A. logc(90 + 90)
B. (logc 92)(logc 32)
C. logc(910 ? 32)
D. logc  

Answer: C

Mathematics

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Arrange the polynomial in descending powers of the variable. Then find its degree and leading coefficient. + 4y2 

A. 4y2 + 3, degree: 4, leading coefficient: 2
B. 4y2 + , degree: 3, leading coefficient: 4
C. y2 + 4, degree: 2, leading coefficient: 
D. 4y2 + , degree: 2, leading coefficient: 4

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Evaluate.If f(x) = -5x2 - 7 and g(x) = x + 5, evaluate (f - g)(-3).

A. 55 B. -44 C. -60 D. -54

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Mathematics

Solve the problem.During one year, the Larson's real estate bill included $575 for local schools. Of this amount, $175 went to the high school district. What percent did the Larsons pay to the high school district? Round your answers to the nearest tenth, if necessary.

A. 10,062.5% B. 69.6% C. 30.4% D. 30.3%

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Mathematics

Find the slope-intercept form of the equation of the line with the given properties.Slope = -7; y-intercept = 12

A. y = -7x - 12 B. y = 12x - 7 C. y = 12x + 7 D. y = -7x + 12

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Mathematics