SOLUTION: if m=7 and n=-5 what is the value of 3m+(m-n)to the 2nd power? 2.which of the following is closest to 10 inches (2.54cm=1inch) a.4cm c.8cm c.12cm d.25cm

Algebra ->  Distributive-associative-commutative-properties -> SOLUTION: if m=7 and n=-5 what is the value of 3m+(m-n)to the 2nd power? 2.which of the following is closest to 10 inches (2.54cm=1inch) a.4cm c.8cm c.12cm d.25cm      Log On


   



Question 611479: if m=7 and n=-5 what is the value of 3m+(m-n)to the 2nd power?


2.which of the following is closest to 10 inches (2.54cm=1inch)
a.4cm c.8cm
c.12cm d.25cm

Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
3m + %28m-n%29%5E2
...
3m+%2B+m%5E2+-+2mn+%2B+n%5E2
...
Plug the given values and solve
3(7) + 7^2 - 2(7)(-5) + (-5)^2
...
21 + 49 + 70 + 25
highlight_green%28165%29
...........
2.54 cm/1 in x 10 in = units of inches
2.54(10) = highlight_green%2825.4%29
.....................
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