How long does it take to fall asleep at night? This depends on what happened the night before. A random sample of 38 college students was kept awake all night and the next day (24 hours).
The mean time for this group to go to sleep the next night was 2.5 minutes with standard
deviation of 0.7 minutes. Compute and interpret a 95% confidence interval for the mean time
of all such students to fall asleep.

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20

b if for most of the graph

d if y intercept

step-by-step explanation:

answer: i dont know i want points

step-by-step explanation:

isocolese triangle

we know that the line connect a and b is the hyptonuse

so first find the hypotonuse length using the distance formula, call the length c

since it is an isocolese triangle, the lengths of the legs are the same

using pythagorean theorem,

in this case, a=b since isocolese triangle so we get

or

we can find c so we can find the distances

we know that if we draw 2 circles, each has center at a and b, and find where they intersect, we can the 2 possible locations for c

if a has center at (xa,ya) and b has center at (xb,yb), then we can solve where

and

intersect to find where they intersect

i'm not going to put an example because i have to go to class. i hope this explanation is enough