Add or subtract as indicated.(-2r4 + 9r3 - 3r) - (8r4 - 9r3 + 6r2 - 2r)
A. -6r4 - 6r2 + r
B. 6r4 + 6r2 - r
C. -10r4 + 18r3 - 6r2 - r
D. 10r4 - 18r3 + 6r2 + r
Answer: C
Mathematics
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. A force of 
stretches the spring to 38 in. How far beyond its natural length will a 
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What will be an ideal response?
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Find the midpoint of the segment having the given endpoints.(7, 1) and (-16, -16)
A. (9, 15)
B. (-9, -15)
C. 
D. 
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