Answer:
B: 3h
Step-by-step explanation:
Because every line on that cube or any cube will be the same length, width, and height.
0.64 or 64% of the variance for the y scores is predicted by its relationship with x.
<h3>What is coefficient of determination?</h3>
The percentage of the variation in the dependent variable that can be predicted from the independent variable is known as the coefficient of determination, abbreviated R2 or r2, in statistics.
<h3>How to find the variance for the y scores?</h3>
given that
A set of n = 25 pairs of scores (x and y values) has a pearson correlation of r = 0.80.
now we have to find the variance for the y scores.
here, r=0.80 then 
which means 0.64 or 64% of the variance for the y scores is predicted by its relationship with x.

Learn more about coefficient of determination,refer:
brainly.com/question/17485791
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Yes because, its still only just 1 term
15x^2 + 12x +10x + 8= 0 reduced 15x^2 +22x+ 8 = 0
R=i/pt
R=456÷(1,600×6)
R=0.0475*100==4.75%