Welcome to this person. So there's a question represent their reach of attendance. The rate of enrollment students with respect to time in years. We are looking for the number of moment. So in this sense we would integrate this so that we can get the number of enrollment is not having the rich. So this is a call to the integral both sides. Mhm. Yeah respected. T. I will make a substitution one Lazar point to So that you have the you that is a call to 0.2 18. Then I would have the T cost too. Do you all the buzzer point to so your substitute this and you substitute that. Well we have the number of war mates. But a sequel now in you. Yeah, So you have 2001 plus Their .2 T. Now becomes a you have 30, The battery in two. So the T becomes 0.2. Oh okay. So instead of to put in, do you All over 0.2. So here we have and a few weekends Let me see, called to come bring 10,000 outside. That is 2000 and writer writer by two. You have this. Yeah. So if we integrate it 10,000 that we have you The behalf all over one. All over negative last see So this becomes 20,000 negative 20,000 you to the bar. Classy So you can write that negative 20,000 all of us crimes of you then blessed. See now we can like a written in terms of T. So negative 20,000 All of us carried of one class. They were .2. T. The glass see no. Currently what is called to there we have 1000 in rooming. So I was in their roommates. That is correct. Of one plus 0.21 It is going to zero. Yeah, When she's called to zero we have 10 days ago. 2000. All right. So let's see initial body. So this becomes 1000. That is equal to negative 20,000 blast. See Now this is one skirt of once or makes it point At this point we can add 20,000 to both sides of the of 20,000 blast 1000. She called to see soc support to 21,000. All right. Then you can write and of G. S. Negative 20,000 all over Skirt of one other point to T The last 21,000. All right. Now you're looking for The woman went is called to five. So at T because 25 Yes and of five and that is she called -20000. Well that was kind of one last year. Going to increase of tr put five there mm and secure to So that is negative 14 14 2.13 56 Yeah. Mhm. So if we subtract Would have 6857 0.86 You're looking at a number of people. So a pause mainly. Mhm. We have 6858 students. Alright. Some short time. This is the end of the lesson.