Divide and, if possible, simplify.
A. 2a
B. 2a2b2
C. 2a2b2
D. 
Answer: B
Mathematics
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Find the center of mass of the particles with the given masses located at the given points.18 at (4.9, 0), 21 at (-9.8, 0), 37 at (2.5, 0), 40 at (-8.2, 0)
A. 
= 0.909, 
= 0
B. 
= 33.3, 
= 0
C. 
= -3.04, 
= 0
D. 
= -10.9, 
= 0
Mathematics
Solve the inequality. Other than ?, graph the solution set on a number line.3x + 7 < 34
A. (-?, 9]
B. (-?, 9)
C. (9, ?)
D. [9, ?)
Mathematics
Factor by grouping.5x + 40 + xy + 8y
A. (y + 8)(5x + y) B. (y + 8)(x + 5) C. (x + 8)(5 + y) D. (x + 8y)(5 + y)
Mathematics
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 5.292 cm B. 7 cm C. 28 cm D. 14 cm
Mathematics