Answer:
It might be B so yeah sorry if it isn't
Answer:
Slope: -3
Equation: 
Step-by-step explanation:
As x increases by 1, your y decreases by 3, making the rise over run
. That becomes the m in your y=mx+b equation, and since you have the y intercept, you can just plug and chug.
If I helped, a brainliest answer would be greatly appreciated!
Answer:
52.70
Step-by-step explanation:
62 * 0.15 = 9.300000000000 tvt
62 - 9.30 = 52.70
This question is fill in the blanks.So there is a total of 3 sentences in this question.
1. In a perfectly competitive market, all producers sell identical goods or services. - One of the characteristics of a perfect competition. This means that the product must be indistinguishable from anycompetitor's product.
2. Additionally, there are many buyers and sellers. – any one firm’s output in contrast to the market output is gradual and what one firm does has no affect on other firms.
3. Buyers and sellers in perfectly competitive markets are price takers. - This means that they accept the price offered in stores.
Answer:
1. ![A^-^1=\left[\begin{array}{cc}\frac{3}{10}&\frac{1}{5}\\\frac{1}{10}&\frac{2}{5} \end{array}\right]](https://tex.z-dn.net/?f=A%5E-%5E1%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%5Cfrac%7B3%7D%7B10%7D%26%5Cfrac%7B1%7D%7B5%7D%5C%5C%5Cfrac%7B1%7D%7B10%7D%26%5Cfrac%7B2%7D%7B5%7D%20%5Cend%7Barray%7D%5Cright%5D)
2. 
Step-by-step explanation:
We have the matrix:
![A=\left[\begin{array}{cc}4&-2\\-1&3\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D4%26-2%5C%5C-1%263%5Cend%7Barray%7D%5Cright%5D)
It's a 2×2 matrix (This means that the matrix has two rows and two columns).
1. We have to find the inverse of A.
For a 2×2 matrix the inverse is:
If you have ![A=\left[\begin{array}{cc}a&b\\c&d\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D)
![A^-^1=\frac{1}{|A|} \left[\begin{array}{cc}d&-b\\-c&a\end{array}\right]](https://tex.z-dn.net/?f=A%5E-%5E1%3D%5Cfrac%7B1%7D%7B%7CA%7C%7D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Dd%26-b%5C%5C-c%26a%5Cend%7Barray%7D%5Cright%5D)
And,
is the determinant of the matrix, the determinant has to be different from zero.
If
then the matrix doesn't have inverse.

Then,
![A=\left[\begin{array}{cc}4&-2\\-1&3\end{array}\right]](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D4%26-2%5C%5C-1%263%5Cend%7Barray%7D%5Cright%5D)

First we are going to calculate the determinant:

The determinant is <u><em>different from zero</em></u>, then the matrix <em>has</em> inverse.
Then the inverse of A is:
![A^-^1=\frac{1}{|A|} \left[\begin{array}{cc}d&-b\\-c&a\end{array}\right]](https://tex.z-dn.net/?f=A%5E-%5E1%3D%5Cfrac%7B1%7D%7B%7CA%7C%7D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Dd%26-b%5C%5C-c%26a%5Cend%7Barray%7D%5Cright%5D)
![A^-^1=\frac{1}{10} \left[\begin{array}{cc}3&-(-2)\\-(-1)&4\end{array}\right]\\\\\\A^-^1=\frac{1}{10} \left[\begin{array}{cc}3&2\\1&4\end{array}\right]\\\\\\A^-^1=\left[\begin{array}{cc}\frac{3}{10}&\frac{2}{10}\\\frac{1}{10}&\frac{4}{10} \end{array}\right]\\\\\\A^-^1=\left[\begin{array}{cc}\frac{3}{10}&\frac{1}{5}\\\frac{1}{10}&\frac{2}{5} \end{array}\right]](https://tex.z-dn.net/?f=A%5E-%5E1%3D%5Cfrac%7B1%7D%7B10%7D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D3%26-%28-2%29%5C%5C-%28-1%29%264%5Cend%7Barray%7D%5Cright%5D%5C%5C%5C%5C%5C%5CA%5E-%5E1%3D%5Cfrac%7B1%7D%7B10%7D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D3%262%5C%5C1%264%5Cend%7Barray%7D%5Cright%5D%5C%5C%5C%5C%5C%5CA%5E-%5E1%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%5Cfrac%7B3%7D%7B10%7D%26%5Cfrac%7B2%7D%7B10%7D%5C%5C%5Cfrac%7B1%7D%7B10%7D%26%5Cfrac%7B4%7D%7B10%7D%20%5Cend%7Barray%7D%5Cright%5D%5C%5C%5C%5C%5C%5CA%5E-%5E1%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D%5Cfrac%7B3%7D%7B10%7D%26%5Cfrac%7B1%7D%7B5%7D%5C%5C%5Cfrac%7B1%7D%7B10%7D%26%5Cfrac%7B2%7D%7B5%7D%20%5Cend%7Barray%7D%5Cright%5D)
2. We have the matrix,
![B=\left[\begin{array}{cc}6&3\\4&2\end{array}\right]](https://tex.z-dn.net/?f=B%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D6%263%5C%5C4%262%5Cend%7Barray%7D%5Cright%5D)

We have to calculate the determinant:

We said that a matrix can have an inverse only if its determinant is nonzero.
In this case
then, the matrix B doesn't have inverse.