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 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

What are the domain and the range of the relation? {(−3, 1), (−6, 7), (0, 9), (2, −1), (8, 8), (11, 5)} Choose exactly two answers that are correct. A. domain:
Disorders of the skin include all of the following except A. acne. B. osteoporosis. C. psoriasis. D. carcinomas.
The upper part of the large intestine is called the duodenum jejunum colon, and the lower part is called the anusileum rectum.
12 divided by t in algebraic expression
why did farmers in the late 1800 want inflation
Which of the following animals has fur that changes color with the season? a. polar bear b. arctic fox c. wolverine d. lynx
Define the output-expenditure model
What is energy coupling? a) the hydrolysis of ATP to ADP + P b) the use of energy released from an exergonic process to drive an endergonic process c) the energ
Being a good listener helps during conflict with women only. a. True b. False
point of my intersect. y=4x-2