Agroup of 463 first-year college students were asked, “about how many hours do you study during a typical week? ” the mean response is 15.3 hours. assume that the study time is normally distributed with a sample standard deviation of 8.5 hours. construct a 99% confidence level interval for the mean study time of all first-year students.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).