poohbear2003z poohbear2003z

03-10-2017
Mathematics

contestada

A rectangle with an area of 120 in 2 has a length 8 inches longer than two times its width. What is the width of the rectangle?

Respuesta :

musiclover10045 musiclover10045

03-10-2017

width = x

length = 2x+8

area = l x w

x(2x+8)=120

2x^2+8x−120=0

x^2+4−60=0

(x+10)(x−6)=0

x=−10 and x=6

width has to be a positive number

Width = 6 inches.

Answer Link

Otras preguntas

Posisyong Papel ng Kagawaran ng Filipinolohiya ng PUP hinggil sa Pagtatanggal ng Filipino sa mga Kolehiyo at Unibersidad Gawain 1: Surin ang halimbawa ng posisy

The cells of collenchyma have evenly thickened cell wall true or false?

the sun has decided that it wants to retire! it has never had a holiday and it works 24 hours adays, 7 days a week year after year. your job is to persuade the

Lucian was hiking through a field directly toward his car, which was parked on a long, straight road perpendicular to his path, when he came to a swamp. He turn

im writing a speech , no wrong or right answers * limited to ppl in the uk only sorry * but what do you think is wrong with our school system , what could be do

Chứng minh a=(P.sinA/2)/(cosB/2.cosC/2)

Simplify. Rewrite the expression in the form 6^n6 n 6, start superscript, n, end superscript. \dfrac{6^{4}}{6}= 6 6 4

your father send your school fees and pocket money through western union money transfer. write a permission to your headmaster to allow to be absent for one wee

Given: CD is an altitude of triangle ABC. Prove: a^2 = b^2 +c^2 = 2bccos A

Based on the diagram, what is cos A? Enter your answer in the boxes. COS A=