Solve the triangle if possible
a.) c=46°32',a=56.2 m, c=22.1 m
b.) a=200 m, a=32.76°,c=21.97°
find the area of the triangle
c.) b=42°,a=7.2 ft, c=3.4 ft

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?