7. The Sears Tower in Chicago is the tallest building in the United States at a height of 1450 ft. If you are standing a mile away from the Sears Tower, at what angle must you look up to see the top? Round to the nearest degree.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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* Tnd the measures to the nearest degree of the acute angles in a
ight triangle with one leg 12 cm long and hypotenuse 14 cm long.
(USES) Objective G
6. The base of a 24-ft extension ladder is 5 ft from a house. What angle
does the ladder make with the ground? Round to the nearest degree.
In 7-9, recall the fact that 1 mile
= 5280 feet.
7. The Sears Tower in Chicago is the tallest building in the United States
at a height of 1450 ft. If you are standing a mile away from the Sears
Tower, at what angle must you look up to see the top? Round to the
nearest degree.
8. The Katoomba Scenic Railway in the Blue Mountains of Australia is
the steepest railway incline in the world. The track is 415 m long and
rises 178 m. What is the track's average angle of elevation? Round to
the nearest degree.
9. In 2005, adventurer Steve Fossett flew around the world solo
without stopping or refueling his plane, the Global Flyer. He flew
at an altitude of 45,000 ft and started his descent for landing when
he wasabout 300 mi from the Salina, Kansas, airport, from which
he had taken off approximately 67 hours earlier. At what angle did
he descend? Round your answer to the nearest tenth of a degree.
Transcribed Image Text:* Tnd the measures to the nearest degree of the acute angles in a ight triangle with one leg 12 cm long and hypotenuse 14 cm long. (USES) Objective G 6. The base of a 24-ft extension ladder is 5 ft from a house. What angle does the ladder make with the ground? Round to the nearest degree. In 7-9, recall the fact that 1 mile = 5280 feet. 7. The Sears Tower in Chicago is the tallest building in the United States at a height of 1450 ft. If you are standing a mile away from the Sears Tower, at what angle must you look up to see the top? Round to the nearest degree. 8. The Katoomba Scenic Railway in the Blue Mountains of Australia is the steepest railway incline in the world. The track is 415 m long and rises 178 m. What is the track's average angle of elevation? Round to the nearest degree. 9. In 2005, adventurer Steve Fossett flew around the world solo without stopping or refueling his plane, the Global Flyer. He flew at an altitude of 45,000 ft and started his descent for landing when he wasabout 300 mi from the Salina, Kansas, airport, from which he had taken off approximately 67 hours earlier. At what angle did he descend? Round your answer to the nearest tenth of a degree.
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