The probability that you randomly select a red marble from a group of 40 marbles is 7 20 . How many are red marbles?

What number produces an irrational number when multiplied by -1.25

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

In angle pqr find the measure of