This is quite difficult to try to explain so I'm going to set up some matrices to demonstrate as best as I can. If matrix A has 3 rows and 2 columns, it would be respresented as
. This matrix can only be multiplied by another matrix that has the same number off rows as the number of columns in A. For example, if matrix B has 2 rows and 3 columns, it would be represented as
. If we set them next to each other, it might be easier to see the rule:
. The 2's match, and the other numbers represent how your solution matrix will look. Your solution matrix will be a 3x3. Here is matrix A:
and here's B:
. We can multiply these according to the rules. The multiplication works like this:
. first row of A times first column of B: (1*1)+(2*4) = 9. that goes into row 1 column 1 of your solution matrix. Go va to row 1 in A but column 2 in B: (1*2)+(2*5) = 12. That goes into row 1 column 2 of your solution matrix. Next row 1 of A and column 3 of B: (1*3)+(2*6) = 15. That goes into the first row column 3 of the solutiong matrix. Now move to row 2 of A column 1 of B: (3*1)+(4*4) = 19. That goes into row 2 column 1 in your solution matrix. Next row 2 A, column 2 B: (3*2)+(4*5) = 26. That goes into row 2 column 2 solution matrix. Continue as I showed you. You should be fine.
The answer to your problem is 48.09
Answer:
The 1st answer.
Step-by-step explanation:
1. Find the quotient to 1/3 ÷ 3/4
Your quotient should be 4/9
2. Solve all of the expressions
1st answer choice product: 4/9
2nd answer choice product: 4
3rd answer choice product: 2 1/4
4th answer choice product: 1/4
3. The only answer that was equivalent to 1/3 ÷ 3/4 was answer choice 1 therefore the first answer choice was the correct answer choice.
Answer:
slope = - 2/3,y = -2
Step-by-step explanation:
- Make y the subject of the line 3y + 6 = -2x.
- Divide throughout by three to get the slope.
- Get the y - intercept by substituting x = 0.
- The slope gotten is -2/3.
- The y - intercept is y = - 2.
- in plotting the graph, make a point at - 2 on the y - axis which is the y - intercept. Then count three steps from the origin on the x - axis towards the negative direction and mark a point on - three.