The resistance is proportional to the length.
You know that 45/9=5
So the ratio (proportionality) is 5.
So, for a 75 ft wire, the resistance is 75/5 = 15 ohms
Answer:

Step-by-step explanation:
To find an equation of a line in point slope form when given the slope and a point we use the formula

From the question we have the final answer as

Hope this helps you
Answer:
Step-by-step explanation:
17_10
15_13
=7
2. =3.5
Just multiple them together and u get 693
Answer:
c=27/40 = 0.675
Step-by-step explanation:
the statement give us the expression:
1/8 +c= 4/5
we subtract the term "1/8" both sides:
we have:
1/8 -1/8+c= 4/5-1/8
c=4/5-1/8
c=(4*8)-(5*1)/(5*8)
c=(32-5)/(40)
c =27/40 = 0.675