Abistarz5421 Abistarz5421
  • 21-11-2017
  • Mathematics
contestada

A rectangle has an area of 330 cm2 and a perimeter of 74 cm. what are its dimensions?

Respuesta :

W0lf93
W0lf93 W0lf93
  • 30-11-2017
Perimeter of rectangle=2(l+b) 2(l+b)=74 (l+b)=37 l=37-b Area of rectangle=l*b 330=l*b 330=(37-b)b 330=37b-b^2 b^2-37b+300=0 By solving we get b=12cm and b=25 is neglected as b<l l=25cm and b=12cm
Answer Link

Otras preguntas

Which of the following is important before giving your speech? Find out the names of your audience members. Select an outfit that is appropriate for the busine
Choose the English equivalent of the underlined word. Cuando voy a pie a la escuela, me canso mucho In a hurry Park On foot Drive
what is a phospholipid composed of?
Did Help , Have No I Deal What To Do
Which are the reactants in this chemical reaction? Zn + 2HCl ZnCl2 + H2 A. Zn + H2 B. Zn + 2HCl C. ZnCl2 + H2 D. 2HCl + ZnCl2
Need help on algebra
**20 POINTS** ANSWER ASAP PLEASE
Help! I need this really quick here!!!!!!
The idea of allowing states to decide for themselves whether to be free or slave is called _____.
9. The process in which mining companies restore land to its original contours and replant vegetation is called A. development. B. forestry. C. fracking