Perform the indicated operation.(4a - 6) - (a - 2)

A. 4a - 4
B. 3a - 8
C. 4a - 8
D. 3a - 4


Answer: D

Mathematics

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A. - 
B.
C.
D. - 

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Convert the equation to the standard form for a hyperbola by completing the square.x2 - y2 - 2x + 4y - 4 = 0

A. (x - 12 + (y - 22 = 1
B. (x - 12 - (y - 22 = 1
C. (y - 12 - (x - 22 = 1
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Find the sum.1 + 2 + 3 + ... + 345

A. 119,370 B. 119,025 C. 59685 D. 59340

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Use the even-odd properties to find the exact value of the expression. Do not use a calculator.cos 

A. - 
B.
C. - 
D.  

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