An object was shot up into the air with an initial vertical speed of 640 feet per second. Its height as time passes can be modeled by the quadratic equation y = -16t² + 640t. Here t represents the number of seconds since the object's release, and y represents the object's height in feet. (Use ft for feet, and s for seconds.) a. After 20s, this object reached its maximum height of 6400ft b. This object flew for before it landed on the ground. c. This object was in the air 31 s after its release. d. This object was 6384 ft high at two times: once after its release, and again later after its release.

An object was shot up into the air with an initial vertical speed of 640 feet per second. Its height as time passes can be modeled by the quadratic equation y = -16t² + 640t. Here t represents the number of seconds since the object's release, and y represents the object's height in feet. (Use ft for feet, and s for seconds.) a. After 20s, this object reached its maximum height of 6400ft b. This object flew for before it landed on the ground. c. This object was in the air 31 s after its release. d. This object was 6384 ft high at two times: once after its release, and again later after its release.

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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