A statistics professor investigated some of the factors that affect an individual student's final grade in her course. She proposed the multiple regression model where y is the final grade (out of 100 points), x1 is the number of lectures skipped, x2 is the number of late assignments, and x3 is the midterm exam score (out of 100). Her estimated regression equation is: Calculate the predicted grade for a student who skipped 2 lectures, turned 3 assignments late and received a grade of 82 in the midterm.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered