Which data set has the largest range? A. 55, 57, 59, 60, 61, 49, 48 B. 21, 25, 14, 16, 29, 22, 20 C. 12, 15, 16, 19, 18, 15, 27
irina [24]
Answer:
Step-by-step explanation:
Data D has the largest range.
Data A: 61-48=13
Data B: 29-14=15
Data C:27-12=15
Data D:54-31=23
Hey there! I'm happy to help!
To find the x value of the midpoint, you add the 2 x values and divide by 2.
-8+6=-2
-2/2=-1
For the y value, you do the same thing but with the y values.
7-9=-2
-2/2=-1
Therefore, our midpoint is (-1,-1).
Have a wonderful day! :D
The midpoint of (x1,y1) and (x2,y2) is
![(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx_1%2Bx_2%7D%7B2%7D%2C%5Cfrac%7By_1%2By_2%7D%7B2%7D%29)
just average them
(4,1) and (-2,4)
the midpoint is
![(\frac{4-2}{2},\frac{1-4}{2})=(\frac{2}{2},\frac{-3}{2})=](https://tex.z-dn.net/?f=%28%5Cfrac%7B4-2%7D%7B2%7D%2C%5Cfrac%7B1-4%7D%7B2%7D%29%3D%28%5Cfrac%7B2%7D%7B2%7D%2C%5Cfrac%7B-3%7D%7B2%7D%29%3D)
(1,-1.5)
Answer:
Step-by-step explanation:
I suggest you watch a video about completing the square if you're not sure what I'm doing.
1.
x^2+2x-3=0
(x^2+2x+1)-3-1=0
(x+1)^2-4=0
Hope this helped,
JoeLouis2