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

find the matrices of

The conversion of CICH=CHCI to CI2C=CC12 can be carried out with: C12 / H20 C12 C12/ hv C12 / aq. NaOH

work out missing angle following polygons

A survey is conducted to determine the percentage of students at state universities who change their major at least once. In a study of 100 students 78% indicat

WILL BE AWARDED 100 points En tu opinión, ¿cuándo es una persona un “adulto?” ¿Cuáles son unas características que un adulto tiene que un joven no tiene? Relata

Convert 15,000 seconds into minutes

How does the development of trade depend on agriculture and industry? Clarify with example.

1) What happens to the Mercury on a cool day in a thermometer??

3. Pada pendapat anda, sebagai rakyat Malaysia, apakah yang boleh kita bantu dalam pertubuhan kemanusiaan Malaysia?

What is a common theme in the book “145th Street Short Stories” by Walter Dean Myers? In the box below, respond with a full essay.