Question

02.) Caleule a media aritmética
Ponderonta.
A-(3; 7; 9) cujos pesos são respectivamente
(5; 2; 3) .​

Answer 1

$\mathsf{m_{p}=\dfrac{5.3+2.7+3.9}{5+2+3}=\dfrac{15+14+27}{10}}\\\mathsf{m_{p}=\dfrac{56}{10}=5,6}$