Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log6 6-9

A. -9
B. -54
C. 1
D. 6

Answer: A

Mathematics

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Replace the polar equation with an equivalent Cartesian equation. 4r cos ? + 5r sin ? = 1

A. 4x + 5y = 1
B. 4y + 5x = 1
C. 4x + 5y = x2 + y2
D.  +  = 1

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Mathematics

Use the MACRS depreciation rates table to solve the problem. Round to the nearest dollar.MACRS Depreciation Rates  Angelica Healthcare purchased new lab equipment (7-year property) for $138,000. Find the accumulated depreciation at the end of 5 years.

A. $114,154 B. $130,051 C. $119,522 D. $107,212

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Mathematics

Graph the function.f(x) = 3x

A.

B.

C.

D.

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Mathematics

Express the following in interval notation.

A. (3, 7) B. [3, 7] C. (-?, 3] ? [7, ?) D. (-?, 3) ? (7, ?)

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Mathematics