Answer:
j3rfjjwdjfjahfkjahfkdjfhdkf
Step-by-step explanation: aa a a a a aa a a a a a
A got the most votes because the ration works with the percentage very well
5(2x - 4) = 45
10x - 20 = 45
10x = 45 + 20
10x = 65
x = 65/10 reduces to 13/2 or 6 1/2
Answer:
Step-by-step explanation:
Given that A is a square matrix and A is idempotent

Consider I-A
i) 
It follows that I-A is also idempotent
ii) Consider the matrix 2A-I

So it follows that 2A-I matrix is its own inverse.