Please help! A Cannonball is shot from the top of a hill. The cannon coasts upwards for several seconds then falls back down to the ground. The height of the cannon (above ground) at anytime t, after it is released, is given by h = -5(t - 4) (t + 2) meters.
How long is the cannonball in the air?

What is the maximum height reached by the cannonball, and after how many seconds does it reach its maximum height?

What is the initial height of the cannonball?

(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean