devinkennedy7078 devinkennedy7078

09-07-2018
Mathematics

contestada

If the scale factor between two circles is 7a/9b what is the ratio of their areas?
a. 49a/81bB. 49a2/81b2
c. 81b2/49a2D. 81b/49a

Respuesta :

calculista calculista

18-07-2018

we know that

the ratio of their areas is equal to the scale factor squared

so

ratio of their areas=scale factor²------> [7a/9b]²------> 49a²/81b²

therefore

the answer is the option

49a2/81b2

Answer Link

nikolaychuknadea nikolaychuknadea

19-05-2022

Answer:

b

Step-by-step explanation:

Answer Link

Otras preguntas

write a real world situation that could be modeled by the equation 650 + 10m = 60m + 400

how are all magnets alike and how are they different

A boy rides his bike 5 miles north then 12 miles west. How far is he from his starting point

how do you solve what is 30% of $240

Identify the systems that move your body,and explain how these systems work together? If you answer my question I'll answer one of yours..

Eight friends attend a read-a-thon. they take turns reading for a total 3 hours. if each friend reads for the same amount of timeˏ what fraction of an hour doe

What causes the earth’s magnetic field? A. the mineral composition of the earth’s crust B. currents in the earth’s liquid-metal outer core C. molten material

Identify the systems that move your body,and explain how these systems work together? If you answer my question I'll answer one of yours..

Compound made from oil

Enter the constant of variation in lowest terms