Monday

March 30, 2015

March 30, 2015

Posted by **jasmine20** on Sunday, April 15, 2007 at 10:32pm.

THe length of a rectangle is 1cm more than 4 times its width. if the area of the rectangle is 74cm^2, find the dimensions of the rectangle to the nearest thousandsth.

so then:

a =Lw

A = 74

W= W

L=4W+1

FROM ALL THIS I END UP WITH

0 = 4W^2+W-74

THEN I USED THE QUADRATIC EQUATION

AND I AM IN THIS STEP:

X=(-1 +/- sqrt 1185)/(8) from here is what i don't know .

It's really simple. If you follow thw steps i showed you in your previous question you'll get it. You have the right values, not just do the math.

-1 minus sqrt(1185)/8 and -1 plus sqrt(1185)/8. Obviously your negative answer is the wrong one

i get this:

width : 4.2cm

length: 17.8cm

**Answer this Question**

**Related Questions**

MATH - THE LENGTH OF A RECTANGLE IS 3M MORE THAN 2 TIMES ITS WIDTH. IF THE AREA ...

math - the length of a rectangle is 5 ft more than twice the width. a)if x ...

math117 - The area of a rectangle of length x is given by 3x2 +5x. Find the ...

math - a rectangle is twice as long as it is wide. if both of its dimensions are...

math - The length of a rectangle is 5 in. more than twice its width.? How do I ...

math - The length, l, of a rectangle is 2 feet less than three times the width, ...

basic geometric - 10. a rectangle has width the same as a side of a square whose...

mat117/algebra - The area of a rectangle of length x is given by 3x^2 + 5x. Find...

algebra - The length of a rectangle is 9.7cm more than 4 times the width. If the...

Algebra - The length of a rectangle is 4 units more than its width. The area of ...