A 3-member committee has to be formed from 2 teachers and 2 parents. How many combinations are possible?

Which data set has a greater spread? why? set a: {38, 12, 23, 48, 55, 16, 18} set b: {44, 13, 24, 12, 56} has a greater spread because .

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Does the point (1, sqrt 7) lie on circle shown.