What is 508% written as a mix number, i'm simplest form

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this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.