Which choice is the simple formula for the nth term of the following arithmetic sequence? 5, 1, -3, -7, -11, a.4n + 9 b.-4n + 1 c.5n + 4 d.4n + 1 e.-4n + 9

Jack is considering a list of features and fees for denver bank. jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b