13 + the cost of 1 brush + the cost of 1 brush = total money spent
Answer:
63 m^2
Step-by-step explanation:
The figure appears to be a parallelogram.
area of parallelogram = base * height
Use the 14-m side as the base. Then the height is the perpendicular distance between the two opposite 14-m sides, so the height is 4.5 m.
area = base * height
area = 14 m * 4.5 m
area = 63 m^2
P.S. The choices are given in square meters (m^2), which is a unit of area, not in meter times square root of 2 "m sqrt(2)."
Answer:
maybe there's a typo, that dot usually represents the multiplication, and I got 5.52
(54000 ÷ 6 ÷ 10 − 30 ∙ 6) ∙ (10 ∙ 20 ∙ 5 ∙ 10 − 99 ∙ 101) = (980 - 180) · (10000 - 9999) = 720 · 1 = 720
Não vale 10 pontos só 5 ok letra b