20/10 is same as 20:10 so the whole number is 2
Answer:
y=-7x+13
Step-by-step explanation:
y=mx+b
m= your slope
b= your y intercept
Answer:
capable of working successfully; feasible.
or
Step-by-step explanation:
(of a plant, animal, or cell) capable of surviving or living successfully, especially under particular environmental conditions.
Answer:
You can tell if a table is linear by looking at how X and Y change. If, as X increases by 1, Y increases by a constant rate, then a table is linear. You can find the constant rate by finding the first difference.
Answer:
<h2>-5</h2>
Step-by-step explanation:
![A=\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] \\\\\det A=\left|\begin{array}{ccc}a&b\\c&d\end{array}\right|=ad-bc](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%5C%5C%5Cdet%20A%3D%5Cleft%7C%5Cbegin%7Barray%7D%7Bccc%7Da%26b%5C%5Cc%26d%5Cend%7Barray%7D%5Cright%7C%3Dad-bc)
![\left\{\begin{array}{ccc}x+2y=5\\x-3y=7\end{array}\right\\\\A=\left[\begin{array}{ccc}1&2\\1&-3\end{array}\right] \\\\\det A=A=\left|\begin{array}{ccc}1&2\\1&-3\end{array}\right|=(1)(-3)-(1)(2)=-3-2=-5](https://tex.z-dn.net/?f=%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bccc%7Dx%2B2y%3D5%5C%5Cx-3y%3D7%5Cend%7Barray%7D%5Cright%5C%5C%5C%5CA%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%262%5C%5C1%26-3%5Cend%7Barray%7D%5Cright%5D%20%5C%5C%5C%5C%5Cdet%20A%3DA%3D%5Cleft%7C%5Cbegin%7Barray%7D%7Bccc%7D1%262%5C%5C1%26-3%5Cend%7Barray%7D%5Cright%7C%3D%281%29%28-3%29-%281%29%282%29%3D-3-2%3D-5)
