Rationalize the denominator.

A.
B.
C.
D.


Answer: C

Mathematics

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Write the augmented matrix for the system.7x + 3z = 224y + 4z = 325x + 5y + 6z = 50

A.

B.

C.

D.

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Solve the equation.4x + 4 = 5(x - 2)

A. 6 B. -14 C. -6 D. 14

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Find a formula for the nth term of the sequence.The sequence 1, - , - , . . . (reciprocals of squares with alternating signs)

A. an = 
B. an = 
C. an = 
D. an = 

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Solve.A rectangular room measures 17 ft by 13 ft. Find the cost of installing a wallpaper border around the room if the border costs $0.65 per foot.

A. $287.30 B. $39.00 C. $143.65 D. $19.50

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