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

Tristan has a pickup truck that could carry 7/ 6 -cord of firewood. Find the number of trips needed to carry 14 cords of wood.

In contrast with nonhuman animals, the reasons why humans engage in sexual behavior are _________.

A 2012 report from the U.S. Surgeon General stated: "Another common practice is strategically locating tobacco-related marketing materials where young children

Is it ok to give a website your zip code?

como influye el cine en la difusion y consolidacion de las obras para que sean consideradas clasicas

Which of the following cell structures is significantly different between Gram-positive and Gram-negative bacteria?

What is one of the key features of blank verse? a.parallelism b.open form c.alliteration d.iambic pentameter?

A store offers a 15% discount on all items in the store during a sale. All store employees get an additional 10% employee discount. In the equation below, C rep

use population density in a sentence

Find the 12 mole ratios between the reactants and products for the second reaction taking place in the airbags of cars. The balanced equation for the reaction i