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.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

step-by-step explanation:

4  

25

5258y

54.

t5

5r

54

5856

542

5458

86

.8558.65

565

565

55898

786

8/95

5896

8656265

556478

its very big question plz make it small