m1 vector question
Maths and statistics discussion, revision, exam and homework help.
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Re: m1 vector questiond^2=121(Original post by examweek)
d^2 = 25t^2 - 112t +169
find the length of time to the nearest minute for which the distance is less than 11km
Form a quadratic and factorise . -
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Re: m1 vector question(Original post by examweek)
d^2 = 25t^2 - 112t +169
find the length of time to the nearest minute for which the distance is less than 11km
Now find the critical values by solving,
At the end draw the graph, and find the required length of time.
