Respostas

2013-12-11T00:41:18-02:00
X^2 = 9.25
x^2 = 225
x = 15

Sim, esta correto
2013-12-11T00:44:03-02:00
X²=9(9+16)
x²=81+144
x²=225
x=√225
x= 15
(confere!)