Answer:
x = -55
Step-by-step explanation:
If you’re looking for the y-intercept: y=5
If you’re looking for the x-intercept: x=-5
Answer:
a) "=T.INV(1-0.02,7)"
And we got 
b) "=T.INV(0.85,7)"
And we got 
Step-by-step explanation:
For this case we have a sample size of n=8, so we can find the degrees of freedom like this:

Part a
For this case we need a value who accumulates 0.02 of the area in the right of the t distribution with 7 degrees of freedom so we can use the following excel code:
"=T.INV(1-0.02,7)"
And we got 
Part b
For this case we need a value who accumulates 0.85 of the area in the left of the t distribution with 7 degrees of freedom so we can use the following excel code:
"=T.INV(0.85,7)"
And we got 
Given:
Number of miles covered = 
Length of each lap =
of a mile.
To find:
The number of laps.
Solution:
We know that,





Therefore, Grayson ran 3 laps.
The answer is 48 bc I have no clue