lombisharshondagio lombisharshondagio

04-11-2016
Mathematics

contestada

A rectangle's width is 5 feet less than its length. If the area of the rectangle is 546 square feet, what is its length, in feet?

Respuesta :

04-11-2016

w = L - 5

546 = L × ( L - 5 )
546 = L^2 - 5L
L^2 - 5L - 546 = 0
( L - 26 ) ( L + 21 ) = 0
L = 26 , L = - 21
L = 26

length cannot be in negative , so ignore the negative answer

i am a mathematics teacher. if anything to ask please pm me

Answer Link

Otras preguntas

Last year K. Billingsworth & Co. had earnings per share of $4 and dividends per share of $2. Total retained earnings increased by $12 million during the yea

-9y-2=x 4x-3y=31 Solve by substitoution

Sitting on a park bench, you see a swing that is 100 feet away and a slide that is 60 feet away. The angle between them is 30°. distance between the swing and t

Which of these factors make hydrogen fuel cells a better option than burning fossil fuels? -Hydrogen fuel cells have a higher energy efficiency. -Hydrogen fuel

If 6x + 5y = 10, what is y in terms of x? Please include an explanation!

who's was the first president of the United States??

Which symptom is NOT typically associated with an allergic reaction to food?

Which equation has infinitely many solutions?A. -5(x + 2) = -4x − 12 − x + 2B. 3x − 4 + 2x = 5(x − 4)C. 5(x + 7) = -5(x − 7)D. 6x + 2 − x = -2x − 2 + 7x

How were American Indians impacted by the Great Depression? Check all that apply. They lacked support from the federal government. They experienced poverty on t

Why don't Americans get much information on the news about what is happening in other countries, unless it's a tragedy; yet everyone else in the world gets news

Q&A Education