TomasS8assmeashle TomasS8assmeashle

20-05-2016
Mathematics

contestada

When the radius doubles, does the area of the circle double?

A) 4π cm2; 8π cm2; NO
B) 4π cm2; 16π cm2; NO
C) 4π cm2; 16π cm2; YES
D) 4π cm2; 8π cm2; YES

Respuesta :

apologiabiology apologiabiology

20-05-2016

example
from pir^2 ro pi(2r)^2
pi(2r)^2=pi4r^2=4pir^2

basicaly we look for any no options and ones where second is 4 times first

B

pi2^2, if it is double, pi4^2

B

Answer Link

Otras preguntas

Using carbo-loading to increase the store of glycogen seems to benefit only those athletes who engage in aerobic activities that are? A. Between 30 and 60 minu

How did the Populist seek to rethink the relationship between freedom and government to address the crisis of the 1890s? How did their platform seek to guarante

what is 1/10 as much of 32 million

What factors might influence family composition

the value of 2 in 2000 is 200 times the value of 2 in =

simplify 1/3 (9a+b) - 1/2 (4a+2b)

)What Byzantine city was a wealthy center of trade that maintained the commercial links between Europe and Asia?

what is 7/16 as a decimal

A plane left an airport and flew 3 miles north, 5 miles west, 2 miles north, 3 miles west, and then flew directly back to the airport . To the nearest tenth of

What factors might influence family composition