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anonymous
 5 years ago
can anyone help me with this question? the function d(s)=0.0056s^2 +14s models the stopping distance of a car, d(s), in metres, and the speed, s, in kilometres per hour. What is the speed when the stopping distance is 7m? Use a graph to solve.
anonymous
 5 years ago
can anyone help me with this question? the function d(s)=0.0056s^2 +14s models the stopping distance of a car, d(s), in metres, and the speed, s, in kilometres per hour. What is the speed when the stopping distance is 7m? Use a graph to solve.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Graph the equation and find where y=7.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The xvalue at that point would be the speed, since the stopping distance is the yvalue.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thanks, do i need to factor first? cause i cant figure out what to factor out

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh wait, the equation is 0.0056 and 0.014 not 14
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