maribelarellan
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 :

irspow
irspow irspow
  • 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

To take measurements in the upper troposphere, which instrument would a scientist use
Compared to the children of nonsmokers, the children of smokers are a. almost three times more likely to smoke. b. almost three times less likely to smoke. c. a
Which biome, typical of Africa, is home to many grazing animals?
If "AXB" names a major arc of a circle, then "AB" must be a minor arc. True False
which explorer served as a guide to J ohn C Fremont?
why do species evolve during adaptive radiation?
who became president after abraham lincoln was assassinated?
According to Mary Parker Follett, ____ is the easiest way to deal with conflict for the moment, but it is not usually successful in the long run.
6x+12-2x=2(2x+3) help me please
what is the difference between a monohybrid cross and a dihybrid cross?