Sarah is hiking on a trail near her home. she traveled 5 miles before stopping for a break. after the break, sarah plans on increasing her speed to 3 miles per hour. which equation models the total distance, d, sarah travels after hiking for an additional h hours? a. d = 3h + 5 b. d = 3(h - 5) c. d = 3h - 5 d. d = 5h + 3

The graph shown is the graph of which function?

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4

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.