Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter7: Applying Fractions
Section7.6: Percents Problems
Problem 20WE
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Please explain as detail as possible, thanks.
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Step 1
"Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for you. To get
remaining sub-part solved please re post the complete question and mention the sub - parts to be solved"
Given
That the function of the graph is
Step 2
Divide the interval [-3,3] in 6 equal sub-intervals
Form the sub-intervals : [-3,-2], [-2,-1], [-1,0], [0,1], [1,2], [2,3]
The left end points of each sub intervals are -3,-2,-1,0,1,2
Area under the curve = sum of the areas of the 6 rectangles
Area = 1* f(-3) + 1* f(-2) + 1 * f(-1) + 1 * f(0) + 1*f(1) + 1*f(2)
Area = 4.6+2.6+1.4+1+1.4+2.6
= 13.6 sq. units
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