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

Who is the origin of the term magistrates patronage?.

Create each sentence by matching the subject that best agrees with the verb phrase.Match Term DefinitionShe A) was playing basketball with her own team.They B)

How did the Civil War effect the government of Texas? A. Sam Houston was elected governor B. Jefferson Davis was appointed governor C. Alexander Jackson Hamilto

The following is from Seventh Letter written by Plato in 360 B.C.. Use context clues to infer the meaning of the underlined word. Now what his purpose and desir

Give me a 60+ word essay of the causes of global warming and how it works PLEASE PLEASE HELP ME I NEED THIS TODAY

SIMPLIFY THE EXPRESSION: Answer choices: A. 2xyz^2 B. 2x^-7y^7z^2 C. 5x^12y^12z^2 D. 5xyz^2 THANK YOU SO MUCH!

Please help me I have 3 minutes left. :(

Which is better ? " On December 23, 1867, in Delta, Louisiana, Sarah Breedlove was born. " or " Sarah Breedlove was born on December 23, 1867, in the Louisiana

Is community possible without democracy?

Why would direct democracy be difficult to use by national government of the United States?