Question 8 (4 points) Find all missing angles.
25°
50
2
1
42°
mZ1 =
mZ2 =
mZ3 =

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%