Factor by grouping.6m3 - 2m2n2 - 3mn + n3
A. (2m2 - n)(3m + n2)
B. (2m - n)(3m2 - n2)
C. (2m2 + n)(3m - n2)
D. (2m2 - n)(3m - n2)
Answer: D
Mathematics
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. Can anything be said about the concavity of such a curve? Give reasons for your answer.
What will be an ideal response?
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Solve the problem.Show that a planet in a circular orbit moves with constant speed.
What will be an ideal response?
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Solve.64x2 + 49y2 = 3136y - x = 8
A. 
, (2, 10)
B. 
, (0, 8)
C. 
, (3, 11)
D. 
, (8, 0)
Mathematics
Find the present value of the ordinary annuity.Payments of $420 made annually for 
at 6% compounded annually
A. $3716.79 B. $3521.20 C. $3718.13 D. $3903.90
Mathematics