I am not sure how to start these two questions

12:03 PM Fri Oct? 9.?0 9.1% - Q Search results for 'eve X _ Homepage MATH 125 X Section 8.2 Part 2 (202 X + e G i webassignnet \\l, [1" @ In your definite integral what is the upper endpoint? l3 5. [012 Points] DETAILS PREVIOUS ANSWERS MY NOTES The circumference of a tree trunk at different heights above the ground is given in the table below. Assume that all horizontal cross-sections of the tree are circles and that the circumference is decreasing from the base of the tree to the top of the tree. Height(inches) O 20 40 60 80 Circumference(inches) 30 26 20 12 4 (a) What is an upper estimate of the volume of the tree from the ground to a height of 20 inches? Give an exact answer. 3380 TI: x in3 (b) What is an upper estimate of the total volume of the tree? Use N = 4. Give an exact answer. 3 l 6. [113 Points] DETAILS PREVIOUS ANSWERS MY NOTES 3 Write an integral giving the arc length of one period of the graph of y = 25in(5x) . Give your answer using the form / R(x) dx 0 where Bis positive. Rm = V 1 100605(5x)2 x Use the Trapezoid Rule with N = 25 to estimate your integral. Give your answer to 3 decimal places. Numerical Integration Utility. Arc length : l 7 T. [-/1 Points] DETAILS IVIY NOTES