What is the sum of one-sixth of x and 2.8?

Solving algebraic equations 2m+3=11

What are the solutions of the following system? y=-2x^2 y=x-2

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?