Answer:
Step-by-step explanation:
What do you man what expressions or just expressions in general.
If the matrix is of 2 by 2 then we can find the determinant of the matrix.

Then (ad - bc ) gives you the determinant of the matrix.
For example,

= (2)(-2) - (1)(4)
= - 4 - 4
= -8
Answer:
The product is 240.
Step-by-step explanation:
The product is always when you multiply numbers together.
Answer:
79,200
Step-by-step explanation:
There are 5280 feet in 1 mile, then you just multiply 5280 by the number of miles (15). So 5280 x 15 = 79,200
So, when finding the volume, we would just add up every side, and from the question above, it look like that the numbers that we would be adding are the following above.

The volume would be 11.2