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47. Construction pool shown in the figure. 48. Parks Find the area of the 2-meter boundary around the swimming An urban renewal project inul of a square 60 ft SECTION 12.3 3 T 53 AREA 8 m 553 7

47. Construction pool shown in the figure. 48. Parks Find the area of the 2-meter boundary around the swimming An urban renewal project inul of a square 60 ft SECTION 12.3 3 T 53 AREA 8 m 553 7

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Date 1 Term 22 Fall *** Ba Administrati AL SECTION 12.3 47. Construction Find the area of the 2-meter boundary around the swimming pool shown in the figure. 48. Parks An urban renewal project involves reseeding a park that is in the shape of a square, 60 ft on each side. Each bag of grass seed costs $5.75 and will seed 1200 ft². How much money should be budgeted for buying grass seed for the park? 49. Architecture The roller rink shown in the figure at the right is to be covered with hardwood flooring. a. Without doing the calculations, indicate whether the area of the rink is more than 8000 ft² or less than 8000 ft². b. Calculate how much hardwood flooring is needed to cover the roller rink. Use 3.14 for TT. 50. Parks Find the total area of the national park with the dimensions shown in the figure at the right. Use 3.14 for T. -5 m 51. Interior Design Find the cost of plastering the walls of a room that is 22 ft wide, 25 ft 6 in. long, and 8 ft high. Subtract 120 ft² for windows and doors. The cost is $3 per square foot. kus d Critical Thinking 52. a. If both the length and the width of a rectangle are doubled, how many times larger is the area of the resulting rectangle? b. If the radius of a circle is doubled, what happens to the area? c. If the diameter of a circle is doubled, what happens to the area? AREA 53. The circles at the right are identical. Is the area in the circles to the left of the line equal to, less than, or greater than the area in the circles to the right of the 12 m 4.3 mi 8 m 553 175 ft- -12.7 mi- 2.5 mi 17.5 mi- 80 ft
Transcribed Image Text:Date 1 Term 22 Fall *** Ba Administrati AL SECTION 12.3 47. Construction Find the area of the 2-meter boundary around the swimming pool shown in the figure. 48. Parks An urban renewal project involves reseeding a park that is in the shape of a square, 60 ft on each side. Each bag of grass seed costs $5.75 and will seed 1200 ft². How much money should be budgeted for buying grass seed for the park? 49. Architecture The roller rink shown in the figure at the right is to be covered with hardwood flooring. a. Without doing the calculations, indicate whether the area of the rink is more than 8000 ft² or less than 8000 ft². b. Calculate how much hardwood flooring is needed to cover the roller rink. Use 3.14 for TT. 50. Parks Find the total area of the national park with the dimensions shown in the figure at the right. Use 3.14 for T. -5 m 51. Interior Design Find the cost of plastering the walls of a room that is 22 ft wide, 25 ft 6 in. long, and 8 ft high. Subtract 120 ft² for windows and doors. The cost is $3 per square foot. kus d Critical Thinking 52. a. If both the length and the width of a rectangle are doubled, how many times larger is the area of the resulting rectangle? b. If the radius of a circle is doubled, what happens to the area? c. If the diameter of a circle is doubled, what happens to the area? AREA 53. The circles at the right are identical. Is the area in the circles to the left of the line equal to, less than, or greater than the area in the circles to the right of the 12 m 4.3 mi 8 m 553 175 ft- -12.7 mi- 2.5 mi 17.5 mi- 80 ft
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