A spherical birthday balloon with a radius of 9 cm is filled with helium, it has a density of .0147 kilograms per cubic centimeter. How many kilograms of helium does the balloon contain? a
44.9 kg
b
5 kg
c
3053 kg
d
.1323 kg

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

what am i trying to find out. you didn't put up the whole question.

step-by-step explanation: