Find the center of mass of the particles with the given masses located at the given points.11 at (-2.9, 0), 17 at (4.6, 0), 31 at (6.9, 0)
A. 
= 6.9, 
= 0
B. 
= 30, 
= 0
C. 
= 4.4, 
= 0
D. 
= 1.1, 
= 0
Answer: C
Mathematics
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A. 70?
B. 84?
C. 56?
D. 
?
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Solve.One bag of Alice's favorite cookies contains 421 calories. How many calories are in 4 bags of cookies?
A. 1680 cal B. 1600 cal C. 2124 cal D. 1684 cal
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Find the domain of the rational function.f(x) = 
A. {x|x ? 3, x ? -5} B. all real numbers C. {x|x ? -3, x ? 5} D. {x|x ? 3, x ? -3, x ? -5}
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Find the exact value of the logarithmic expression.log1/4 64
A. -3
B. 
C. - 
D. 3
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