maribelarellan maribelarellan

25-04-2017
Mathematics

contestada

if a rectangle has an area of 30 square meters and a perimeter of 34 meters . what is the dimensions of the rectangle?

Respuesta :

25-04-2017

P=2(L+W) and P=34 so

2(L+W)=34

L+W=17 so we can say

L=17-W

A=LW using L from above

A=(17-W)W

A=17W-W^2 and A=30 so

30=17W-W^2

W^2-17W+30=0

W^2-2W-15W+30=0

W(W-2)-15(W-2)=0

(W-15)(W-2)=0

So the dimensions of the rectangle are 15 meters by 2 meters.

Answer Link

Otras preguntas

What are the values of X and Y A. X=3, Y=10 B. X=2, Y=12 C. X=32,Y=10 D.X=17,Y=5

what are the solutions of the equation x^2+4x=96 A 2,-48 B -12,8 C -2,48 D 12,-8

What is synergistic interaction?

Write the equation of a line parallel to y=1/3x-3 and that passes through (3,-1).

a dry cleaner charges $5.52 per pound to clean small rugs. how much would the dry cleaner of 15.4 pounds of rugs cost?round to the nearest dollar

The need for cognitive efficiency is very important, but sometimes it can lead people to poor decision making. For example, when considering whether or not to b

Since cognitive therapy focuses on changing thoughts rather than gaining deep insights into their causes, this kind of therapy is primarily an ________ therapy.

Ruth and Debbie are identical twins who were raised by the same family. Vince and Frankie are identical twins who were separated at birth and raised by differen

which east Asian country elects a president by the vote of the people

Globular proteins fold up into compact, spherical structures that have uneven surfaces. They tend to form multisubunit complexes, which also have a rounded shap