Question

gente me ajuda ai pfv tem q entrgar hj

a 2 e a 3 tem q determinar o valor de X​

Answer 1

Resposta:

2) X= 5

3) X= 15

4) X= 13

5) D= 6,32

Explicação passo a passo:

2)

$A^{2} = B^{2} + C^{2} \\X^{2} = 4^{2} + 3^{2} \\X^{2} = 16 + 9\\X^{2} = 25\\X = \sqrt{25}\\X = 5$

3)

$A^{2} = B^{2} + C^{2} \\25^{2} = 20^{2} + X^{2} \\625 = 400 + X^{2} \\400 + X^{2} = 625\\X^{2} = 625 - 400\\X^{2} = 225\\X =\sqrt{225} \\X + 15$

4)

$A^{2} =B^{2} +C^{2} \\X^{2} = 5^{2} + 12^{2} \\X^{2} = 25+ 144\\X^{2} = 169\\X=\sqrt{169} \\X= 13$

5)

$A^{2} =B^{2} +C^{2} \\7^{2} = D^{2} + 3^{2} \\49= D^{2} + 9\\D^{2} = 49-9\\D^{2} = 40\\D=\sqrt{40} \\D= 6,32$