3 years ago

Please find for y thank you

Mathematics

1 answer:

Vlad1618 [11]3 years ago

4 0

Since the triangles are congruent your equation would be 2y+8=19

Solve for y

y=5.5

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$(5+x)(5-x)=7\\\\\text{use:}\ (a-b)(a+b)=a^2-b^2\\\\5^2-x^2=7\\\\25-x^2=7\ \ \ |-7\\\\18-x^2=0\\\\x^2-18=0$

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