Write an equation you could use to find the length of the missing side

of each right triangle. Then find the missing length. Round to the

nearest tenth if necessary.

1.

3.

bcm

10 m

3 cm

8 in

cin,

11 cm

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

52 cm radius = diameter = area = circumference = circumfer

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”?