The equation for line l is y = 4
what do pre and post test studies look at?data collected on the same sample elements before and after some experiment is performedwhen are the t procedures exactly correct?when the pop is exactly Normal (rare)the t procedures are robust to small deviations from Normality, butthe sample must be a random sample from the pop
Answer:
see explanation
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + b
where m is the slope and b the y- intercept
Answer:
In this case, you can use the concept of cosine to calculate y, and things are even easier when you have one of the special angles which is a 45° angle.
So we know that: cos45° = √2/2
This fact will always be true. In our case, we have:
cos45° = 7/y
Therefore, we have the equation:
7/y = √2/2
⇔ 14 = y√2
⇔ y = 14/√2
⇔ y = √196/√2 = √(196/2) = √98 = 7√2
So y is equal to 7√2
