Question

21- Sendo a = 1/2, b = 2/3 e c = 1/4, encontre o valor de x = b² + 4 · a · c.

ME AJUDEN PORFAVOR É PRA AMANHÃ.

Answer 1

Resposta:

$\textsf{Leia abaixo}$

Explicação passo a passo:

$\mathsf{a = \dfrac{1}{2},\:\:\:b = \dfrac{2}{3},\:\:\:c = \dfrac{1}{4}}$

$\mathsf{x = b^2 + 4.a.c}$

$\mathsf{x = \left(\dfrac{2}{3}\right)^2 + 4.\left(\dfrac{1}{2}\right).\left(\dfrac{1}{4}\right)}$

$\mathsf{x = \left(\dfrac{4}{9}\right) + 4.\left(\dfrac{1}{8}\right)}$

$\mathsf{x = \left(\dfrac{4}{9}\right) + \left(\dfrac{4}{8}\right)}$

$\mathsf{x = \left(\dfrac{4}{9}\right) + \left(\dfrac{1}{2}\right)}$

$\mathsf{x = \left(\dfrac{8 + 9}{18}\right)}$

$\mathsf{x = \left(\dfrac{17}{18}\right)}$