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

Measure of each side of an equilateral triangle is 12cm. It's area is given by A) 9 root3 B)18 root3 C)27 root3 D) 36 root 3 Please help fast

PLEASE HELPwrite an equation that represents the linear function shown in the table or mapping diagram

Locate the infinitive and determine how it is used. She had planned to begin piano lessons last week. Infinitive: Use:

Which of the following terms best describes the object below

Write a loop to print the numbers: 11, 21,...51 using Python

distributive property -2(-v+3u-6)

Energy transformations are inefficient and energy transfers are _________. A. Energy transfer B. Inefficient C. Open D. Direction E. Kinetic F. Renewable G. The

Please help me, these 2 questions are crazing me out!

combine like terms: 2+7(-2+7x)

PLEASE HELP PLEASE (thank you)Jenny's mother bought her two shirts (identical except for the color) and a small jewelry box that cost $8. she spent less than $3