For a recent season in college football, the total number of rushing yards for that season is recorded for each running back. the mean number of rushing yards for the running backs that season is 790 yards. one running back had 1,637 rushing yards for the season, which is 2.42 standard deviations above the mean number of rushing yards. what is the standard deviation of the number of rushing yards for the running backs that season?
(a) 250 yards
(b) 300 yards
(c) 350 yards
(d) 400 yards
(e) 450 yards

What other information do you need to prove triangle dac=bca by asa

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i.e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)