Consider the solid that lies above the square (in the xy-plane) R = [0, 2] x [0, 2], and below the elliptic paraboloid z = 25 – 2² – 2y?. (A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left hand corners. (B) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the upper right hand corners. (C) What is the average of the two answers from (A) and (B)?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.1: The Rectangular Coordinate System
Problem 41E: Find the exact lateral area of each solid in Exercise 40. Find the exact volume of the solid formed...
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Consider the solid that lies above the square (in the xy-plane) R = [0, 2] x [0, 2],
and below the elliptic paraboloid z = 25 – 2² – 2y?.
(A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left hand corners.
(B) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the upper right hand corners..
(C) What is the average of the two answers from (A) and (B)?
Transcribed Image Text:Consider the solid that lies above the square (in the xy-plane) R = [0, 2] x [0, 2], and below the elliptic paraboloid z = 25 – 2² – 2y?. (A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left hand corners. (B) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the upper right hand corners.. (C) What is the average of the two answers from (A) and (B)?
Expert Solution
Step 1

(a) For the lower left corner we have: (0,0)-(0,1)-(1,0)-(1,1) and evaluate the function at these points:

z(0,0)=25

z(0,1)=25-2=23

z(1,0)=25-1=24

z(1,1)=25-1-2=22

the little squares are (1x1) so their surface is 1 therefore the volume is 1[25+23+24+22]=94

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