Hector bought a salt spreader to put salt on his driveway the tank on the spreader is of a shape of a right circular cone as shown below. The
directions stated that 224,6 cubic centimeter could cover 1 square yard of
the driveway. What is the greatest area in whole square yards that one
tank full of salt can cover?"

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

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.