The radioisotope phosphorus-32 is used in leukemia therapy. the half-life of this isotope is 14.26 days. which equation determines the percent of an initial amount of the isotope remaining after t days? a) a = 100 (1/2) ^ 14.26 / t b) a = 14.26 (1/2) ^ 100 / t c) a = 100 (1/2) ^ t / 14.26 d) a = 14.26 (1/2) ^ t / 100

You are constructing a histogram for scores that range from 70 to 100 in whole points. frequencies range from 3 to 10; that is, every whole-point score between 60 and 100 occurs at least 3 times, and at least one score occurs 10 times. which of these would probably be the best range and size for the score intervals along the x-axis?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin