Answer:
we approach the issue by taking note of that a 2 x 2 matrix can either have 1 0r 2 pivot columns. If the matrix has no pivot columns then every entry in the matrix must be zero.
-> if our matrix has two pivot columns then : ![\left(\begin{array}{rr}-&*&0&-\end{array}\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cbegin%7Barray%7D%7Brr%7D-%26%2A%260%26-%5Cend%7Barray%7D%5Cright%29)
-> if our matrix has one pivot column then we have a choice to make. If the first column is pivot column then: ![\left(\begin{array}{rr}-&*&0&0\end{array}\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cbegin%7Barray%7D%7Brr%7D-%26%2A%260%260%5Cend%7Barray%7D%5Cright%29)
->otherwise, if the pivot column is the second column then: ![\left(\begin{array}{rr}0&-&0&0\end{array}\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Cbegin%7Barray%7D%7Brr%7D0%26-%260%260%5Cend%7Barray%7D%5Cright%29)
It only equals positive 12, that symbol means it equals positive and negative 12
Answer: m=4
Step-by-step explanation:
To find the slope, we use the formula
. We can use the two points to find the slope. The points on the graph are (-2,1) and (-3,-3).
![m=\frac{-3-1}{-3-(-2)} =\frac{-4}{-1} =4](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B-3-1%7D%7B-3-%28-2%29%7D%20%3D%5Cfrac%7B-4%7D%7B-1%7D%20%3D4)
<h2>
Answer:</h2><h2>
They should travel 120 mils in one day for both rental agencies to cost the same amount to rent</h2>
Step-by-step explanation:
A rental car agency charges $30.00 per day plus per mile $0.15.
Let x be the number of miles travelled by car
Their total cost = 30 + (0.15x) ... (1)
Another rental car agency charges $36.00 per day plus $0.10 per mile
Their total cost = 36 + (0.10x) ... (2)
Equating (1) and (2), we get
30 + (0.15x) = 36 + (0.10x)
36 - 30 = 0.15x - 0.10x
6 = 0.05x
x = 120 miles
They should travel 120 mils in one day for both rental agencies to cost the same amount to rent
Answer:
31
Step-by-step explanation:
its just like the area of a sqaure or rectangle
5x6 1/5=
30+1=31
1/5x5/1=5/5=1
6x5=30