Asmall class has
10

students,
5

of whom are girls and
5

of whom are boys. the teacher is going to choose two of the students at random. what is the probability that the first student chosen will be a girl and the second will be a boy? write your answer as a fraction in simplest form.

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

True or false? a circle could be circumscribed about the quadrilateral below.