Answer:
y=39
Step-by-step explanation:
73-2y=-5
2y=73-(-5)
2y=73+5
2y=78
y=78/2
y=39
C. 2g-19.5=40 I think i'm right
Answer:
Xy=1/5......
Step-by-step explanation:
because
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.
Answer:
the answer is c
Step-by-step explanation:
I just did this quiz