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A dragster races down a 400 m strip in 8 s. Its distance, in metres, from the starting line after t seconds is s(t) = 6t² + 2t. How fast was it moving 60 m down the strip? 38 m/r

A dragster races down a 400 m strip in 8 s. Its distance, in metres, from the starting line after t seconds is s(t) = 6t² + 2t. How fast was it moving 60 m down the strip? 38 m/r

College Algebra
College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 46SE: Near the surface of the moon, the distance that an object falls is a function of time. It is given...
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A dragster races down a 400 m strip in 8 s. Its distance, in metres, from the starting line after t seconds is s(t) = 61² + 2t. How fast was it moving 60 m down the strip? 38 m/s 48 m/s 58 m/s none of the above
Transcribed Image Text:A dragster races down a 400 m strip in 8 s. Its distance, in metres, from the starting line after t seconds is s(t) = 61² + 2t. How fast was it moving 60 m down the strip? 38 m/s 48 m/s 58 m/s none of the above
In a certain manufacturing process, when the level of production is x units, the cost of production, in dollars, is C(x) = 3000 + 9x + 0.05x², 1 ≤x≤ 300. C(x)₂ What level of production, x, will minimize the unit cost. U(x) = Keep in x mind that the production level must be an integer. 4 215 units 245 units 58 m/s units Onone of the above
Transcribed Image Text:In a certain manufacturing process, when the level of production is x units, the cost of production, in dollars, is C(x) = 3000 + 9x + 0.05x², 1 ≤x≤ 300. C(x)₂ What level of production, x, will minimize the unit cost. U(x) = Keep in x mind that the production level must be an integer. 4 215 units 245 units 58 m/s units Onone of the above
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