15. The height of an airplane from the ground in meters is given by f(x) = -5x + 14x + 3, where t is the time in seconds. After how many seconds will the airplane hit the ground? %3D a. 13 seconds c. 30 seconds b. 18 seconds d. 38 seconds

Algebra & Trigonometry with Analytic Geometry
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ISBN:9781133382119
Author:Swokowski
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Chapter2: Equations And Inequalities
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15. The height of an airplane from the ground in meters is given by f(x) = -5x + 14x + 3, where
t is the time in seconds. After how many seconds will the airplane hit the ground?
a. 13 seconds
c. 30 seconds
b. 18 seconds
d. 38 seconds
Transcribed Image Text:15. The height of an airplane from the ground in meters is given by f(x) = -5x + 14x + 3, where t is the time in seconds. After how many seconds will the airplane hit the ground? a. 13 seconds c. 30 seconds b. 18 seconds d. 38 seconds
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