Which of the following sets of numbers could be the lengths of the sides of a triangle? a. 12 in., 24 in., 48 in. b. 12 in., 6 in., 3 in. c. 12 in., 12 in., 12 in. d. 12 in., 8 in., 4 in.

Ameteorologist is studying the monthly rainfall in a section of the brazilian rainforest. she recorded the monthly rainfall, in inches, for last year. they were: 10.4, 10.3, 11.7, 11.1, 8.0, 4.4, 2.6, 1.8, 2.5, 4.4, 7.3, 9.5 fill in the missing values in the formula. what is the variance?