kaiapa2023 kaiapa2023
  • 16-03-2022
  • Mathematics
contestada

URGENT- A rectangle has an area of 210 cm 2 and a perimeter of 58 cm. What are its dimensions? (show work)

Respuesta :

ipenman123
ipenman123 ipenman123
  • 16-03-2022

Answer:

L= 29-b

Step-by-step explanation:

A=210cm^2

A= L*b

210= (29-b) b

210= 29b-b^2

b^2-29b+210=0

b^2-15b-14b+210=0

b(b-15)-14(b-15)=0

(b-15)(b-14)=0

R=14 B=15

P-58cm

p=2(l+b)

58=2(l+b)

29= l+b

L= 29-b

Answer Link

Otras preguntas

How is the sun related to nuclear, radiant, and heat energy?
Which major processes were needed for the origin of life on Earth?
estimate the value of -50 by plotting it on a number line[tex] - \sqrt{50} [/tex]how to plot -50 on a number line​
Why are programming languages like Java and Python ideal for rapid development?
Q4Because the presentations Mary wanted to attend were being conducted _______, she could only attend one.Concurrently Intermittently Sequentially Chronological
Multiply (−7)(2)(−2). a −28 b −14 c 28 d 14
Sentence transformation (adjectives and adverbs) 1. My brother is a skillful swimmer. My brother can ……………………………………………………… 2. Her friends are very slow typists.
In the expression 2ab + b - 3b2 + 4, the coefficient of b is:
4. Manuel swims at a speed of 1 yard per second. How many feet per minute does he swim?​
factorise x²-49please solve this answer​