Question

Determine o ponto médio do segmento de reta de extremidades: a) A(1,-3) e B(3,2) b)A (5,2) e B (1,6)​

Answer 1

Explicação passo-a-passo:

Para descobrir o ponto médio de um seguimento podemos seguir a seguinte fórmula:

$xm = \frac{xa + xb}{2} \\ \\ ym = \frac{ya + yb}{2}$

Agora, vamos substituir os valores que temos no enunciado :

a)

$xm = \frac{1 + 3}{2} = \frac{4}{2} = 2 \\ ym = \frac{ - 3 + 2}{2} = - \frac{1}{2}$

(2 ; -1/2)

b)

$xm = \frac{5 + 1}{2} = \frac{6}{2} = 3 \\ ym = \frac{2 + 6}{2} = \frac{8}{2} = 4$

(3 ; 4)

Answer 2

Resposta:

A- Answer these questions.

01. Were you cooking yesterday?

02. Was your sister sleeping at this time yesterday

03. Was the teacher talking about paintings?

04. What was there on the street last night?

05. Was there a hurricane in our city last year?