lexigold lexigold

10-05-2019
Mathematics

contestada

x^2 + ( square root of 7)^2 = 55^2 what is x

Respuesta :

EmmaEnos EmmaEnos

10-05-2019

Answer:

x=54.9363

Step-by-step explanation:

x^2+7=55^2 square root and exponent cancel out
x^2+7=3025 55*55=3025
x^2=3018 subtract 7 from both sides
x=√3018 take square root of both sides
x=54.9363

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