Answer:
Therefore
and 
Step-by-step explanation:
Remember that if
= Identity Matrix
then
.
Also remember that for any invertible matrix
Identity Matrix.
Therefore

Therefore
and 
Answer:
10,000 tons of sand is being delivered.
Step-by-step explanation:
Answer:
x8
Step-by-step explanation: bacause if you see and look really close
Answer: 3
Step-by-step explanation:
1.5+1.5=3