20. 16.25 ft17.15 cm18.200 m21 cm25 ft120 mb 40 m25 ft20 cm60mSelect Techniques to Solve Problems (1)(C) Select a technique (such as mentalmath, estimation, or number sense) to find the area of the composite figure. Thenfind the area.20.19.6 m10 yd6 yd7 m5 m20 vd

Answered: Image /qna-images/answer/f5ea115c-8f46-45a4-8472-9e058eb61ea9.jpg

Answered: 6 m 7 m 5 m

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter2: Equations And Inequalities

Section2.1: Equations

Problem 71E

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Similar questions

a. How accurately should you measure the edge of a cube to bereasonably sure of calculating the cube’s surface area withan error of no more than 2%?b. Suppose that the edge is measured with the accuracyrequired in part (a). About how accurately can the cube’svolume be calculated from the edge measurement? To findout, estimate the percentage error in the volume calculationthat might result from using the edge measurement
a. Suppose we had a triangular prism that was 14 cm long with atriangular base of 1 cm and a height of 0.8 cm. Whatwould the volume of that prism be, and do youbelieve that it actually is a better estimate? b. Suppose that we had a marker that was twice as thick and twice as tall, but the same length. Approximately how many of the cubes would we need to make a good estimate of its volume? Explain/show how you know this.
Determine, using the method of composite areas, the second moments of area of part 3 about the y-axis [units^4]
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Suppose the presence of phosphates in certain waste products dumped into a lake promotes the growth of algae. Rampant growth of algae affects the oxygen supply in the water, so an environmental group wishes to estimate the area of algae growth. The group measures the length across the algae growth (see the figure) and obtains the data (in feet) in the table. x Length x Length 0 0 50 36 10 24 60 33 20 27 70 32 30 27 80 0 40 39 Use 8 rectangles with bases of 10 feet and lengths measured at the left-hand endpoints to approximate the area of the algae growth. _______ sq ft
Suppose that the radius of the hut is increased by 2.5%. Calculate the following:(i) Percentage increase in the area of the roof?(ii) Percentage decrease in the proportion of the volume taken by the ball in the hut?
Estimate the allowable percentage error in measuring the diameter D of a sphere if the volume is to be calculated correctly to within 3%.
10.4 9) Sketch the curve and find the area that it encloses.
A worker is cutting a square from a piece of sheetmetal. The specifications call for an area that is 16 cm2with an error of no more than 0.01 cm2 . How much error could be toler-ated in the length of each side to ensure that the area is within the tolerance?
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