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

CAN SOMEONE HELP ME! I can't fail What is the correct evaluation of 25 - 3x, when x is equal to -2? 11 21 31 19

-/1 points | MCKEALG9 2.5.001. of a rectangular lot if the width w is 55 feet and the perimeter P is 290 feet. Use the formula P = 21 + 2w to find the length 1

Think about someone who believe is a hero. What makes them a hero? Write an essay explains what makes a hero

What promise did President Polk make about the border of Oregon Country?

Which line on the graph shows the sea level change that would result in continuous shoreline regression? Question 10 options: A B C D

$1500 for supplies to sell at a football game. Total receipts for the venue was $3,700. What were her expenses as a percentage of revenue for the game

( 3/4 ÷ 3/100 −23 1/2 )÷1 1/2 · 2/3 +1 1/6

WORTH 20 PTS Factor the polynomial: 5x+ay+5y+ax

Question 10 of 254 PointsA jar of mass 2.1 kg sits on a table. What is the normal force acting on thjar?O A. 33.1 NO B.2.1 NO c. 5.3 NO D. 20.6 N

A. How many calories are needed to raise the temperature of 1 gram of water by 1 °C?B. How many calories are needed to melt 1 gram of ice at 0 °C?C. How many ca