Answer:
-7a+6b-11
Step-by-step explanation:
-2a+5b-7-5a+b-4
Taking like term together
= -2a-5a+5b+b-7-4
= -7a+6b+11
Answer:
I believe that the answer is A
Step-by-step explanation:
The term rules for the following sequences is that you multiply each number by 3! Hope this helps and please mark brainliest :)
For this case we have that by definition, the equation of a line of the slope-intersection form is given by:
![y = mx + b](https://tex.z-dn.net/?f=y%20%3D%20mx%20%2B%20b)
Where:
m: It's the slope
b: It is the cut-off point with the y axis
By definition, if two lines are parallel then their slopes are equal.
Then, the requested line will have a slope equal to:
![m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {5 - (- 3)} {2 - (- 2)} = \frac {5 +3} {2 + 2} = \frac {8} {4} = 2](https://tex.z-dn.net/?f=m%20%3D%20%5Cfrac%20%7By_%20%7B2%7D%20-y_%20%7B1%7D%7D%20%7Bx_%20%7B2%7D%20-x_%20%7B1%7D%7D%20%3D%20%5Cfrac%20%7B5%20-%20%28-%203%29%7D%20%7B2%20-%20%28-%202%29%7D%20%3D%20%5Cfrac%20%7B5%20%2B3%7D%20%7B2%20%2B%202%7D%20%3D%20%5Cfrac%20%7B8%7D%20%7B4%7D%20%3D%202)
Thus, the line is of the form:
![y = 2x + b](https://tex.z-dn.net/?f=y%20%3D%202x%20%2B%20b)
We substitute point
and find "b":
![5 = 2 (-4) + b\\5 = -8 + b\\5 + 8 = b\\b = 13](https://tex.z-dn.net/?f=5%20%3D%202%20%28-4%29%20%2B%20b%5C%5C5%20%3D%20-8%20%2B%20b%5C%5C5%20%2B%208%20%3D%20b%5C%5Cb%20%3D%2013)
Finally, the equation is:
![y = 2x + 13](https://tex.z-dn.net/?f=y%20%3D%202x%20%2B%2013)
Answer:
![y = 2x + 13](https://tex.z-dn.net/?f=y%20%3D%202x%20%2B%2013)
Answer:
![9](https://tex.z-dn.net/?f=9)
Step-by-step explanation:
To calculate the mean, you add up all the values and divide by the number of values:
![M = (5 + 10 + 15 + 20 + 2 + 2) \div 6\\M = 9](https://tex.z-dn.net/?f=M%20%3D%20%285%20%2B%2010%20%2B%2015%20%2B%2020%20%2B%202%20%2B%202%29%20%5Cdiv%206%5C%5CM%20%3D%209)