An equilateral triangle is inscribed in a circle of
radius r. Express the circumference, C, of the circle as a function of
the length, x, of a side of the triangle
I have NO idea on how to even approach this. The answer is supposed to be 2(pi)(x) radical (3) / 3
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Two cars leave an intersection at the same time.
One is headed south at a constant speed of 50
miles per hour. The other is headed east at a
constant speed of 120 miles per hour. Express
the distance, d, between the two cars as a
function of the time, t.
The answer is d(t) = 130t. How do I get that?
Gosh please help. You'll make my Night!!!!
2007-02-19
16:44:16
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4 answers
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asked by
Anonymous
in
Mathematics