The numbers of absent days a student had in the last five months are {0, 4, 2, 0, 3}. What is the approximate population variance of this data

14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years