
Pooled Combined Variance 
Test Statistic:



Degrees of freedom = 


The table value is greater than the calculated value.
Thus we accept H0.
Answer:
Only A is correct
Step-by-step explanation:
A is shown in the image below.
For B, a rectangle does not have its lenght and height having the same dimension.
For C, such a cross section will give a square with sides of 4 cm each.
1/3
Hope this helps! :)
(I’m actually doing IXL too lol)
1/2 -3/6 is equal to 0 because 1/2 is equal to 1/2
Answer:
Slope: 1/4
y-intercept: -6
Step-by-step explanation: