Add or subtract. Simplify radicals where necessary.-7 + 2

A. -5
B. 11
C. -3
D. 3


Answer: C

Mathematics

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Make a line graph of the data.Financial Aid recipients R for a four year college during the year x

A.

B.

C.

D.

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Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 

A. hyperbola, directrix perpendicular to the polar axis 2 right of the pole B. parabola, directrix perpendicular to the polar axis 2 right of the pole C. parabola, directrix parallel to the polar axis 2 above the pole D. hyperbola, directrix parallel to the polar axis 2 above the pole

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Solve the problem.A brick staircase has a total of 12 steps The bottom step requires 100 bricks. Each successive step requires 4 fewer bricks than the prior one. How many bricks are required to build the staircase?

A. 912 bricks B. 1464 bricks C. 1872 bricks D. 936 bricks

Mathematics

Solve the equation. = 

A. - 2
B. {- 2, - }
C. {2, }
D. ?  

Mathematics