Answer:
1.25y=x
Step-by-step explanation:
If A (or y)=5 and B (or x)=4 then I think the equation will be 1.25y=x
I am sorry if I am wrong :(
But Hope this Helps ;)
Step-by-step explanation:
The answer is OPTION C
Find the Inverse of a 3x3 Matrix.
First
Find the Determinant of A(The coefficients of e
Proceed towards finding the CO FACTOR of the 3x3 Matrix.
+. - +
A= [ 1 -1 -1 ]
[ -1 2 3 ]
[ 1 1 4 ]
The determinant of this is 1.
Find the co factor
| 2 3 | |-1 3 | |-1 2 |
| 1. 4. | |1 4 | |1. 1 |
|-1. -1 | |1 -1 | |1 -1
| 1. 4 | |1. 4| |1 1|
|-1. -1 | |1 -1 | |1. -1
|2. 3| |-1. 3| |-1 2|
After Evaluating The Determinant of each 2x 2 Matrix
You'll have
[ 5 7 -3]
[3 5 -2 ]
[-1 -2 1]
Reflect this along the diagonal( Keep 5,5 -2)
Then switching positions of other value
No need of Multiplying by the determinant because its value is 1 from calculation.
After this
Our Inverse Matrix Would be
[ 5 3 -1 ]
[7 5 -2 ]
[ -3 -2 1]
THIS IS OUR INVERSE.
SO
OPTION C
Answer:x=2
Step-by-step explanation:
3(x-2)=6x-12
3x-6=6x-12
Collect like terms
6x-3x=12-6
3x=6
Divide both sides by 3
3x/3=6/3
x=2
Heyo Kiddo. How are you doing today?
Let's figure this out.
So, if "one number is p," then we can say the other number can represent the variable z.
We can conclude that: p + z = 45
For us to solve for z :
p + z = 45
- p -p
So then,
z = 45 - p
You're welcome. :)
So all the multiples of 3 are...
3, 6, 9, 12, 15, 18
and of those, the ones not divisible by 2 are...
3, 9, 15