CALCULUS DATA IN A TABLE NEED HELP ASAP PLEASE! THANK U

Question

The table of values below shows the rate of water consumption in gallons per hour at selected time intervals from t = 0 to t = 12.

Using a left Riemann sum with 5 subintervals, estimate the total amount of water consumed in that time interval. (4 points)

x02571112
f(x)	5.7	5.0	2.0	1.2	0.6	0.4

Answer Choices:

22.1
	34.8
	35.8
	None of these

Answer 1

Left Riemann Sum = f(1)*(2 -0)+ f(2)*(5-2) + f(3)*(7-5)+ f(4)*(11-7)+ f(5)*(12-11)

= 11.4 + 15 + 4 + 4.8 + 0.6

=35.8