kimsooyun1109oruz6m kimsooyun1109oruz6m
  • 20-06-2017
  • Mathematics
contestada

the length of a rectangle is one unit more than its width. if the area is 30 square units, find the dimensions of the rectangle

Respuesta :

irspow
irspow irspow
  • 20-06-2017
A=xy and y=x+1 so

A=x(x+1)

A=x^2+x

x^2+x-A=0  since A=30

x^2+x-30=0

x^2-5x+6x-30=0

x(x-5)+6(x-5)=0

(x+6)(x-5)=0, since x>0 to have any meaning...

x=5 units, and since y=x+1

y=6 units.
Answer Link

Otras preguntas

PLEASE HELP Ultimately, there is one and only one right standard of moral evaluation 1. Relativism 2. Pluralism 3. Cosmopolitanism 4. Absolutism
½–¾ what is the answer to this fraction​
Please help me with this i will give brainliest
Which equations can be best solved with the square root method? Select each correct answer.
To Kill a Mockingbird - Choose one person. Is this person powerful based on social class, gender, or race. Give two examples and reasoning. PLEASE HELP ITS FOR
complete the square to solve 3x^2+12x=9 A. x=3+√6 B. x=2+√7 C. x=-2+√7 D. x=-2+√13
HELP ME PLEASE NO UNNECESSARY COMMENTS
Who do you think had the greatest impact on the Protestant Reformation? Luther, Calvin, or Henry VIII? Why? THERE IS NO WRONG ANSWER! GIVING BRANLIEST :)!
HELP WILL GIBE BRAINLIEST. HOW MUCH IS IT FOR 1
De las 30 preguntas del examen de matematicas, por cada respuesta correcta se obtenian 5 puntos y por cada respuesta incorrecta, o pregunta no contestada,se per