cherrygreyson
cherrygreyson
17-05-2018
Mathematics
contestada
Solve for x.
7
12
21
4
Respuesta :
ktreyb
ktreyb
17-05-2018
x² + 14² = (2√85)²
x² + 196 = 340
x² = 144
x = 12
The second option is your answer.
Answer Link
choixongdong
choixongdong
17-05-2018
Pythagorean Theorem
a^2 + b^2 = c^2
or
a^2 = c^2 - b^2
in this case:
x^2 = (2√85)^2 - 14^2
x^2 = 340 - 196
x^2 = 144
x = 12
Answer Link
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