please answer during normal breathing about 11% of the air in the lungs is replaced with each breath. write an exponential decay model for the amount of original air left in the lungs if the initial amount of air in the lungs is 550 milliliters. how much of the original air is present after 30 breaths?

a = ^x

the amount of air left after 30 breaths is milliliters

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places