atomickitten atomickitten

27-03-2017
Mathematics

contestada

The length of a rectangle is 3 centimeters less than its width. What are the dimensions of the rectangle if its area is 130 square centimeters?

Respuesta :

stim100986 stim100986

27-03-2017

a = lw

130 = l*(l+3)

130 = l^2 + 3l

l^2 + 3l - 130 = 0

(l + 13)*(l - 10) = 0

l = -13, l = 10

length can't be negative, so length is 10cm, height is 13cm

Answer Link

Otras preguntas

English general during the French and Indian War

what is -3/8,5/16,-0.65,2/4 from least to greatest

I need to know Why dis Chinese traders demand payment for their good in gold?

solve for a. 1/4(20−4a)=6−a a. −1 b. 0 c. no solution d. all real numbers

What type of physician should Jane, a new mother, go to for personal care and the care of her baby?

Characteristics used to classify a group of the population that shares common characteristics, such as age, gender, class, etc., is called __________.

What do e and f equal?

what was Ethan Allen's profession?

Please help much appreciated

Identify the type of error in the sentence. If the sentence contains no error, select C. Jane was not only beautiful but was known as a humble person. definitio