Question

Por favor quem puder responder as duas ficarem muuito feliz bjs

Answer 1

Resposta:

A 1 e w= (-4/16) +2/5 .(14-12/2)

w= - 1/4 +2/5 .(2/2)

w= - 1/4 +2/5 .1

w= -1/4 +2/5

w= -5+8/20

w= 3/20

Espero ter te ajudado

Answer 2

Resposta:

7) w = 32,5

8) z = $\frac{3}{4}$

Explicação passo a passo:

7)

$w = \frac{(5 -8,5)^{2} + 4}{0,5} \\\\w = \frac{(3,5)^{2} +4}{0,5}\\\\w = \frac{16,25}{0,5} \\\\w = 32,5$

8)

$x = \frac{3}{4}+ \frac{2}{5} \\\\x = \frac{15 +8 }{20} \\\\x = \frac{23}{20} \\\\\\y = 2,14 -1,74\\y = 0,4 ou 4/10\\\\\\z = x - y\\\\z = \frac{23}{20} -\frac{4}{10} \\\\z = \frac{23 - 8}{20} \\\\z = \frac{15}{20} \\simplificando\\z = \frac{3}{4}$