Question

please solve

The rate at which water is flowing into the boat is given in the table below. Estimate the volume of the water that has flowed into the boat during 20 minutes using right hand sums, left hand sums, the midpoint rule, the trapezoid rule. Which one is an upper estimate? Which one in a lower estimate? Why? 0 5 10 15 20 rO liters/minute 20 25 27 16 3 t minutes

Answer 1

ut -5厂88 upber estrnate [.nl c) + 2-r I 5> +2九(1c> +2-t 十九120) △n = Ts 2. 2