Gather the m's and n's by rewriting it. 7m - 11n - n + 5m
7m + 5m -11n - n
(7m + 5m) + (-11n - n)
12m - 12n ■
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35m2
7m + 2 = 37 or 7m = 37 - 2 or 7m = 35 So m = 5
7m + 8 =71 7m = 71 - 8 7m = 63 m = 63/7 m = 9
To find the area of a quadrilateral with sides of 7m, 4m, 5m, and 3m, you can use Brahmagupta's formula for the area of a cyclic quadrilateral: Area = √(s-a)(s-b)(s-c)(s-d), where s is the semiperimeter (s = (a + b + c + d) / 2) and a, b, c, and d are the lengths of the sides. Plug in the values of the sides into the formula to calculate the area.
5 and 7 are two coefficient. And that is all. There is no third coefficient.