t Scoring Section 5.1 ubmission is used for your soore. onsider the following eq

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t Scoring Section 5.1 ubmission is used for your soore. onsider the following equation and figure. fx) (o) By reading values from the given graph of f, use five rectangles to find a lower estimate and an upper estimate for the area A under the given graph of f from x 0 tox 100. (lower estimate) (upper estimate) (b) Find new estimates using ten rectangles in each case. (lower estimate) (upper estimate) A a Submit Answer Save Progress Practice Another Version My Notes Ask Youw 6/6 points I Previous Answers SEssCalcET2 5.1.003M x -io cos(x) from ?·O to x " ?/2 using four approximating rectangles and right endpoints. (Round your answers to four dec mai places) (a) Estimate the area under the graph of R47.9077 Sketch the graph and the rectangles

Explanation / Answer

Five rectangles (each with length 20)

Lower: A?20(10)+20(30)+20(43)+20(55)+20(62)?4000

Upper: A?20(30)+20(43)+20(55)+20(62)+20(70)?5200

Ten rectangles (each with length 10)

Lower: A?10(10)+10(20)+10(30)+10(38)+10(43)+10(50)+10(53)+10(60)+10(62)+10(68)?4340

Upper: A?10(20)+10(30)+10(38)+10(43)+10(50)+10(53)+10(60)+10(62)+10(68)+10(70)?4940

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