Answer:
c
Step-by-step explanation:
Because
is 1 the equation turns into...
which equals...

and
is just c
<span>The answer to this problem is B. t – 51 = 127 t = 178 $178.</span>
Answer:
B 5400
Step-by-step explanation:
Answer:
u^2 +7u -8=0 where u = 3x+2
Step-by-step explanation:
(3x+2)^2 + 7(3x+2) - 8=0
Let 3x+2 = u
u^2 +7u -8=0
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.