Question

URGENTEE!!!
POR FAVOR!!!
35 PONTOS!!!​

Answer 1

Resposta:

a) 2/5

b) -9/5

c) 3/10

Espero ter te ajudado!!

Answer 2

Resposta:

$f(x) = - 5x + 2$

$a) \: x \: quando \: f(x) = 0$

$0 = - 5x + 2$

$5x = 2$

$x = \frac{2}{5}$

$b) \: x \: quando \: f(x) = 11$

$11 = - 5x + 2$

$5x = - 9$

$x = \frac{ - 9}{5}$

$c) \: x \: quando \: f(x) = \frac{1}{2}$

$\frac{1}{2} = - 5x + 2$

$1 = ( - 5x + 2)2$

$1 = - 10x + 4$

$10x = 4 - 1$

$10x = 3$

$x = \frac{3}{10}$