happy4you
happy4you
10-04-2017
Mathematics
contestada
what is the radius of the larger circle
Respuesta :
apologiabiology
apologiabiology
10-04-2017
a=pir^2
80pi=pir^2+pi(2r)^2
80pi=pir^2+4pir^2
undistribute pi
80pi=pi(r^2+4r^2)
add like terms
80pi=pi(5r^2)
divide both sides by pi
80=5r^2
divide both sies by 5
16=r^2
sqrt both sides
4=r
2r=8
the radius of larger is 8 meters
Answer Link
VER TODAS LAS RESPUESTAS ( 76+ )
Otras preguntas
Which substance is most likely to heat up the fastest?
Dynamic stretches are part of an effective warm-up because they can help
Which situation is considered reinforcement? A. The inability to get a job due to prior criminal history B. Refusing to leave a tip for service that
Can someone explain this poem
cube number that is multiple of 24
What is the square root of 12500?
How long does a crocodile live for?
What is the proper order for how a bill passes through the House?
Kitchen chairs are purchased wholesale for $36 by a discount furniture store. Then, the store marks up the chairs by 60 percent. The store has a special sale wh
During a sale a dress decreased in price from $80 to $76 what was the percent of decrease
