You subtract 3 from 9 which gives you 6 and then divide it by 2 which gives you 3
Answer:
2x + y = 3 => y = 3-2x
then
4x+4(3-2x) = 8
4x+12-8x= 8
-4x = -4
x=1
y=3-2*1 = 1
Step-by-step explanation:
Step-by-step explanation:
(A)
Length of wire = 30.48 m
Area of cross section = 3.22 * 10 ^ -5 m^2
(B) length of wire = 1219.2 m
Area of cross section = 1.29 * 10^-5 m^2
Resistance = 8.45 * 10^-8 * 1219.2 / 1.29 * 10^-5 = 7.98 Ohms