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29. A ball is thrown upward from a height of 80 feet. The ball's height y (in feet) after t seconds can be modeled by y = -16t + 64t + 80. a. How long until the ball hits the ground? b. How long until the ball reaches the height from which it was thrown? c. The ball reaches its maximum height after 2 seconds. What is the maximum height of the ball?

29. A ball is thrown upward from a height of 80 feet. The ball's height y (in feet) after t seconds can be modeled by y = -16t + 64t + 80. a. How long until the ball hits the ground? b. How long until the ball reaches the height from which it was thrown? c. The ball reaches its maximum height after 2 seconds. What is the maximum height of the ball?

Algebra and Trigonometry (6th Edition)
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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25. d2 +1 ld - 26 = 0 26. 4w2 - 18w = 10 s2 + 121 = 22s 27. 25 = 4 28. %3D 29. A ball is thrown upward from a height of 80 feet. The ball's height y (in feet) after t seconds can be modeled by v = -16t + 64t + 80. a. How long until the ball hits the ground? b. How long until the ball reaches the height from which it was thrown? c. The ball reaches its maximum height after 2 seconds. What is the maximum height of the ball? 30. A company's profit (in millions of dollars) can be represented by x - 6x + 12, where x is the number of years since the company started. When did the company have a profit of $4 million? 31. You are building an addition to your deck. The area (in square yards) of Addition W DELL
Transcribed Image Text:25. d2 +1 ld - 26 = 0 26. 4w2 - 18w = 10 s2 + 121 = 22s 27. 25 = 4 28. %3D 29. A ball is thrown upward from a height of 80 feet. The ball's height y (in feet) after t seconds can be modeled by v = -16t + 64t + 80. a. How long until the ball hits the ground? b. How long until the ball reaches the height from which it was thrown? c. The ball reaches its maximum height after 2 seconds. What is the maximum height of the ball? 30. A company's profit (in millions of dollars) can be represented by x - 6x + 12, where x is the number of years since the company started. When did the company have a profit of $4 million? 31. You are building an addition to your deck. The area (in square yards) of Addition W DELL
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