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 ( 79+ )
Otras preguntas
Language does not need to refer to something specific or physical, but rather to ideas, values and beliefs. This is related to the characteristic of language ca
Make a list of at least five fitness resources in a community.
Which set of data does not have a mode? (A) 1, 2, 5, 6, 8 (B) 1, 3, 5, 5, 6 (D) 1, 1, 1, 2, 2 (C) 1, 5, 5, 5, 5
A project has an initial cost of $48,425, expected net cash inflows of $11,000 per year for 8 years, and a cost of capital of 12%. What is the project's payback
In the yellow text box, briefly describe in four to five sentences a conflict you have been in. Include what caused the conflict and who was involved. Write abo
How many different sets of initials can be formed if every person has one surname (i.e., last name) and either one or two given names (i.e., a first name, or a
21. Write an equation in point-slope form for the line through the given point with the given slope. 3 (4, -6);m=3/5
write about current situation of water resources in Nepal
Estimate the average rate of change from x=4 to x=5 .
chemistrystate two industrial uses of hydrogen
