Perform the indicated operation and write the answer in simplest form. 
+ 
- 
A. 
B. - 
C. - 
D. 
Answer: B
Mathematics
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Simplify.3x - y - 9(3x - 9y + 7z)
A. -24x - 10y + 7z B. -24x - 82y + 63z C. -24x + 80y - 63z D. -24x + 8y - 7z
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Find the surface area of the figure.A right circular cylinder with r = 9 cm, h = 10 cm
A. 536.9 cm2 B. 791.3 cm2 C. 1073.8 cm2 D. 2543.4 cm2
Mathematics
Simplify the expression.(4-2)-1
A. 
B. 
C. 16
D. 4
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Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 7 meters?
A. 8.0 sec B. 2.6 sec C. 2.8 sec D. 7.7 sec
Mathematics