12:52 PM Wed Apr19 .. ?100%l:4:' d webassignnei 1. [/2 Points] DETAILS BERRAPCALCBR7 5.3.009. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER For the function, do the following. f(x)=\\/;from a=4 to b=7. (a) Approximate the area under the curve from a to b by calculating a Riemann sum using 6 rectangles. Use the method described in this example rounding to three decimal places. square units (b) Find the exact area under the curve from a to b by evaluating an appropriate definite integral using the Fundamental Theorem. square units Need Help? _ 2. [/1 Points] DETAILS BERRAPCALCBR7 5.3.025. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use a definite integral to find the area under the curve between the given Xvalues. f(x)=4x3 from X=2 to x=3 square units Need Help? is 3. [/1 Points] DETAILS BERRAPCALCBR7 5.3.077. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER On a hot summer afternoon, a city's electricity consumption is 731'2 + 141' + 10 units per hour, where t is the number of hours after noon (0 5 t s 6). Find the total consumption of electricity between the hours of 1 pm. and 6 pm. Need Help? . H .. 4. [/1 Points] l DETAILS BERRAPCALCBR7 5.3.079.M YNOTES l ASKYOUR TEACHER ll PRACTICE ANOTHER 4. [-l1 Points] DETAILS BERRAPCALCBR7 5.3.079.M|. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER After t hours of work, a bank clerk can process checks at the rate of r(t) checks per hour for the function r(t) given below. How many checks will the clerk process during the first three hours (time 0 to time 3)? r(t) : t2 + 90t + 9 [:checks Need Hem? \