Asurvey is being planned to determine the mean amount of time corporation executives watch television. a pilot survey indicated that the mean time per week is 19 hours, with a standard deviation of 5.0 hours. it is desired to estimate the mean viewing time within 30 minutes. the 99% level of confidence is to be used. (use z distribution table.)

When they are both racing on hoverboards, victoria is 3 times as fast as her brother max. when she is on foot, she is 3 times slower than max on his hoverboard. they took off on hoverboards at the same time, but after 12 minutes, victoria’s hoverboard broke and she immediately started to run. if the race was a tie, how long, in minutes, did it last from start to finish?

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.