It’s should be D
Because if Y is the midpoint of XZ, it means XY=ZY,
or XY= half of XZ, or ZY= half of XZ.
It can also equal to 2XY=XZ, or 2ZY=XZ.
Y divides XZ into two equal parts.
Answer:
If they are reflection. I think they are congruent
Step-by-step explanation:
r value i.e Correlation between x value and y value = 0.769
=Standard deviation of the x-coordinate = 5.508
=Standard deviation of the y-coordinate = ?=k
Slope of line is given by formula
If slope of line is m, then
m =
m= ![0.769 \times \frac{k}{5.508}](https://tex.z-dn.net/?f=0.769%20%5Ctimes%20%5Cfrac%7Bk%7D%7B5.508%7D)
Substitute the value of k, i.e Standard deviation of the y-coordinate and then you can get the slope of line to three decimal places.
Ok! So first, 2 hours are 120 minutes and 55 + 35 = 90
120 - 90 = 30
So the answer is A. Cindy spends 30 minutes on History
Hope it helps!
Just divide 70 by 2 and you get 35