Answer:
The answer to your question is C). There is no positive or negative correlation. This is because there is no specific direction of the dots. And it isn't going in a straight line, in one specific direction.
Step-by-step explanation:
Going down=Negative correlation Going up=Positive correlation.
No, this is an equation which you are to solve.
Add 12 to both sides of the equation: y = 19+12, or y = 31 (solution).
Answer:
see explanation
Step-by-step explanation:
2B + 3C
= 2 ![\left[\begin{array}{ccc}4&-5\\-2&1\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D4%26-5%5C%5C-2%261%5C%5C%5Cend%7Barray%7D%5Cright%5D)
+ 3 ![\left[\begin{array}{ccc}1&-1\\-6&3\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D1%26-1%5C%5C-6%263%5C%5C%5Cend%7Barray%7D%5Cright%5D)
Multiply each element in the matrices by the scalar quantity, that is
= ![\left[\begin{array}{ccc}8&-10\\-4&2\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D8%26-10%5C%5C-4%262%5C%5C%5Cend%7Barray%7D%5Cright%5D)
+ ![\left[\begin{array}{ccc}3&-3\\-18&9\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-3%5C%5C-18%269%5C%5C%5Cend%7Barray%7D%5Cright%5D)
Add corresponding elements from each matrix
= ![\left[\begin{array}{ccc}8+3&-10-3\\-4-18&2+9\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D8%2B3%26-10-3%5C%5C-4-18%262%2B9%5C%5C%5Cend%7Barray%7D%5Cright%5D)
= ![\left[\begin{array}{ccc}11&-13\\-22&11\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D11%26-13%5C%5C-22%2611%5C%5C%5Cend%7Barray%7D%5Cright%5D)
It will take Carlos 4 hours to walk 16 miles.
