A little Algebra, and we're home free!
We are given R = 20 and r2 = 75. We need to find r1.
The formula is 1/R = 1/r1 + 1/r2. Plug-in:
1/20 = 1/r1 + 1/75
1/20 - 1/75 = 1/r1
0.0366 = 1/r1
r1 = 1/0.03666
r1 = 27.272
Our answer is r1 = 27 ohms.
The set of all even numbers between 2 and 10 inclusive are:
{2, 4,6,8,10}
Since it asked for inclusive so include 2 and 10 as well.
(a) Plan b costs more by $10
(b) $275, Plan A will cost more
Answer:
1/24
Step-by-step explanation:
Answer:
48 square units
Step-by-step explanation:
Area = length x width
= 8 x 6
= 48