Answer:
41
Step-by-step explanation:
Matrix Multiplication follows a row-column format. In order to compute this, you must be familiar with vector dot products.
With that in mind, lets get straight into it.
The order that matrix multiplication follows means that the terms in the result are filled in left to right, then top to bottom.
Therefore, a21 will be the 3 value that is computed. This is important becuase this allows to directly compute a21, instead of using up a lot of time computing all the values before.
As a21 is located in the bottom row 1st column, we take the dot product of the 2nd row in matrix 1 and the 1 column in matrix two.
So we have:
(7 2) dot (5 3) = 7*5 + 2*3 = 41
Well the volume of dirt she needs to remove is equal to length*width*height=6.2*4.9*0.225=6.8355
Now let's find how many bags she needs.
To solve for this, simply divide room in bags from total room.
6.8355/0.87=7.857
Thus Zoe has barely enough, but enough bags.
Answer:
17
Step-by-step explanation:
bc
Answer:
Inconsistent
Step-by-step explanation:
A system of equation is said to be inconsistent if the lines are parallel or the system of equations have no solution.
From the given graphs of lines, we can say that the lines are parallel to each other. Hence, the graphs never intersect.
Since, the lines are parallel hence, we can say that there would be no solution for the system of equations.
Therefore, the system is inconsistent.
Hence, third option is the correct option.
I think it is 10 because 18×10=180 but it is close hope this helps
