Question

Resuelva justificando todos los pasos:

Answer 1

Respuesta:

1)

${10}^{2} + {x}^{2} = {20}^{2} \\ 100 + {x}^{2} = 400 \\ {x}^{2} = 300 \\ x = \sqrt{300}$

2)

$90 + 70 + x = 180 \\ 160 + x = 180 \\ x = 20$

3)

${13}^{2} + {20}^{2} = {x}^{2} \\ 169 + 400 = {x}^{2} \\ 569 = {x}^{2} \\ \sqrt{569} = x$

4)

$40 + x + x = 180 \\ 40 + 2x = 180 \\ 2x = 140 \\ x = 70$

5)

${2c}^{2} + {c}^{2} = {b}^{2} \\ {3c}^{2} = {b}^{2} \\ { \sqrt{ {3c}^{2} } } = b \\ 3c = b$

6)

$x = 2y \\ z = 2y$

Answer 2

Respuesta:

Explicación paso a paso: