lindseyneville68 lindseyneville68
  • 04-05-2021
  • Mathematics
contestada

the width of a rectangle is 7 cm less than twice its length. its area is 30 square cm. find the dimensions

Respuesta :

MarvelDude MarvelDude
  • 04-05-2021

Answer:

l = 6 cm

w = 5 cm

Step-by-step explanation:

l(2l - 7) = 30

2l^2 - 7l - 30

(2l + 5)(l - 6)

l = 6

2(6) - 7 = 5

Answer Link

Otras preguntas

How did working together during the american revolution strengthened the sense of being american and forming an american identity
Which of the following types of information is most closely associated with the concept of "Labeled Line Code." Question options: 1) Modality of the stimulus
In what part of this process should safety precautions be planned
How do I solve bh+hr=25 when solving for b
Why is investing in a mutual fund less risky than investing in a particular company’s stock?
Which of the following is an example of how economic motives helped spread European Imperialism?
during the explore activity were you able to locate all five of the outlying areas of the united states on the world wall map? select true or false. A) yesB) No
Use the substitution method to solve the system of equations. 2x - y = 10 3x - 2y = 8
What is the range of the function on the graph? A.all real numbers B.all real numbers greater than or equal to 0 C.all real numbers greater than or equal to 1 D
Which excerpt from chapter 23 of The Adventures of Huckleberry Finn most clearly illustrates that the duke is someone who does not take responsibility for his a