Question

efetue as multiplicacoes:

b)
$( \frac{1}{10}) \times ( \frac{10}{7} ) \times (14z) =$
c)
$( - \frac{3}{2}ab) \times ( + \frac {4}{9} bc) \times ( - \frac{3}{7} a {c}^{3} )$

Answer 1

Boa noite

b)

(1/10)*(10/7)*14z = 14z/7 = 2z 

c)

(-3ab/2) * (4bc/9) * (-3ac/7) = 2a^2b^2c^2/7