00:01
Hi there, so for this problem we have a rectangular swimming pool that is 38 feet wide and 75 feet long.
00:22
The table that is provided in here gives depths from x equals to zero at the shallow n to the dividing n.
00:32
So we need to use the trapezoidal rule with n equals to 15.
00:39
To estimate the volume of the pool, where the volume of the pool is the integral from 0 to 75 of 38 times the function of the death, this integrated over x.
00:59
So we know that by the trapezo rule, we can approximate this to just simply.
01:05
38.
01:07
This divided by 2.
01:09
Now, this by the intervals that you can see in here are increasing by 5.
01:18
Now, we do the following.
01:20
The first number that is in here, that is 4 .4, we multiply, we just leave it just like that, 4 .4.
01:29
This plus the other numbers until the previous of the last one, we leave it, we multiply that by 2...