0.01x - 0.3y = 1 y = 0.1x - 2 which of the following systems is equivalent to the given system? a) x - 30y = 100 and 10y = x - 20 b) x - 3y = 10 and 10y = x - 20 c) 10x - 30y = 10 and 10y = x - 20

x-30y=100 and 10y=x-20

Step-by-step explanation:

use formula for the circle a=3.14

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.