A Model Rocket Is Launched With An Initial Upward Velocity Of 215/fts.
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- a model rocket is launched with an initial upward velocity of 215/fts.
User Generated
Useruyyl0626
SubjectMathematics
Description
The rocket's height h (in feet) after t seconds is given by the following: h=215t-16t^2. Find all values for t when the rocket's height is at 97 feet
User generated content is uploaded by users for the purposes of learning and should be used following Studypool's honor code & terms of service.Explanation & Answer
We need to find those values of t for which h(t) = 97. This means we have to solve 215*t - 16*t^2 = 97. Subtracting 97 from both sides, we get 215*t - 16*t^2 - 97 = 0. Rearranging terms to get the quadratic in standard form, we get -16*t^2 +215*t - 97. I sure don't know the factors off-hand, but I do know how to find them. The quadratic formula. The general form of a quadratic equation is a*x^2 + b*x + c = 0. For our problem, we have
a = -16, b = 215, and c = -97. From quadratic formula, x = [-b +/- sqrt(b^2 - 4*a*c)]/2*a. Plugging in, we get
x = [-215 +/ sqrt((-215)^2 - 4 * (-16) * (-97))]/(2 * (-16) = [-215 +/ sqrt(46225 - 6208)]/(-32), so
x = [-215 +/ sqrt(40017)]/(-32)
x ~ [-215 +/- 200.043]/(-32) so x ~ (-215 - 200.043)/(-32) or x ~ (-215 + 200.043)/(-32), so
x ~ -415.043/(-32) or x ~ -15.053/(-32).
You can calculate these two positive roots.
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Giải T H=215t-16t^2 | Mathway
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Solve Using The Quadratic Formula 97=215t-16t^2 | Mathway
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Solve Quadraticequations 97=215t-16t^2 Tiger Algebra Solver
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H= 215t-16t^2 Find All Values Of T For Which The Rocket's Height Is 97 ...
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215t-16t^2=97 - Solution
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H=215t-16t2 Find All Values Of T For Which Th - Gauthmath
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H=215t-16t2 - Gauthmath
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Solve 97=215t-16t^2 - Microsoft Math Solver
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A Model Rocket Is L… - QuestionCove
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Solved A Model Rocket Is Launched With An Initial Upward
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Solved A Model Rocket Is Launched With An Initial Upward
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[Solved] A Model Rocket Is Launched With An Initial Velocity Of 215 Ft/s ...