Answer:
Step-by-step explanation:
You set both sides equal to 180
4x + 20 + 84 = 180
4x = 76
x= 19
E + 10 = P
(P + 5) = 2(E +5)
E = P -10
P + 5 = 2((P-10)+5)
P + 5 = 2P -20 + 10
P + 5 =2P - 10
-P = -15
P = 15
This is an arithmetic sequence because there is a common difference between each term.
Answer:

Step-by-step explanation:
From the question we are told that
Charge 
Force 
Generally the equation for electric field strength is mathematically given as


Therefore

Answer:
160 ft
Step-by-step explanation:
the length of one side would be √1600 which is 40 so 40• 4 is 160