12) the distance formula is d = rt, where d is the
distance, r is the rate, and t is the time.
a) rewrite the equation to isolate r.
b) brad drove from athens to atlanta in 1.5 hours,
72 miles away, before he flew out for kansas
city. what was his rate of speed in miles per
hour?

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

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.

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.