brooke020500 brooke020500

02-05-2017
Mathematics

contestada

The length of a rectangular field is 20 less than its width. The area of the field is 12,00 square feet. What is the width of the field?

Respuesta :

jwright24 jwright24

02-05-2017

x(x-20)=12000
x^2 - 20x = 12000
x^2 - 20x - 12000 = 0
(x - 120)(x + 100) = 0

x = -100, 120

so the width is 120 ft

Answer Link

Otras preguntas

I don't get this question

What cause the center of the solar nebula to collapse?

Generators use a magnetic field of which of the following to produce an electric current? temporary magnet magnetic properties magnetic domain permanent magnet

what likely happens to the hart rate as the cardiac mucle gets stronger

4. Simplify the expression. -3(b – 7)

Mr.willer wanted to donate 27cans of food to each of 8 food banks.Each of the 23 students in Mr.willers class donated 9 cans . How many not cans does Mr.willer

A ellos _____ ______ los partidos de beisbol

I'm going to be doing the debate (in class) on whether the colonies should join the confederation or not. I'm on Canada West and I'm FOR the confederation... th

Polly buys 14 cupcakes for a party. The bakery puts them puts them into boxes that hold 4 cupcakes each. How many boxes will be needed for Polly to bring all th

Which words in this excerpt from Macbeth represent the idea that Duncan's murder is a disruption of order? MACBETH: Who can be wise, amaz'd, temperate, and furi