Need answer fast! what is the value of m^2 - 2mn + n^2 for m = -2 and n = 4? a. -36 b. -4 c. 4 d. 36

Instead of plugging in and right away, notice that

and now evaluating this expression at the two given values is easier, if only a little:

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hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )