Posted by **Jessica** on Wednesday, October 24, 2007 at 11:17pm.

The length of a rectangle is 2 cm more that 5 times it's width. If the area of the rectangle is 84 cm^2 find the dimensions of the rectangle to the nearest thousandth.

This is what I have..is it rihgt?

5x^2+5x+2-84

5x^2+5x-82=0

-5+-the square root of 5^2-4(5)(-82)/2(5)

-5+- the square root of 25+1640/10

-5+- the square root of 1665/10

L=2+5x

L=2+5(3.58)

L=20.06 cm

W=3.58 Cm

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