Answer:
D m = -1
Step-by-step explanation:
To find the slope of the line
m = (y2-y1)/(x2-x1)
= (-12--11) / (10-9)
= (-12+11) / (10-9)
= -1/1
= -1
Answer:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Step-by-step explanation:
For a confidence level given c, we can find the significance level like this:

And with the degrees of freedom given by:
We can find the critical value 
And for this case if the confidence increase the critical value increase so then this statement is True
Given: 2/3 every 30 seconds
If we cut 2/3 in half, we get 1/3. This would also mean we cut the time in half 30 / 2 = 15 seconds
Therefore, 1/3 of the length every 15 seconds.
15 + 15 + 15 = 45 seconds to go the full length of the path
I think the answer is 360
-14??
Idek tbh it’s kinda hard