Draw a perpendicular from the center of the
circle to the midpoint of a side of the triangle.
Now draw a line from the center to the vertex
of that side. You now have a right triangle with
a base angle of 30º, side adjacent to that angle
of 3, and hypotenuse = r, the radius of circle. So,
cos 30º = 3/r, r = 3.46, the diameter
is twice that, 6.92 round to 6.9
Answer:
The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram
Step-by-step explanation:
Given as :
The amount of sodium-24 = 900 gram
The decay rate of sodium is 5 %
The time period for its decay = 90 hours

Or, 
Or, Final value of sodium -24 = 900 g ×
Or, Final value of sodium -24 = 900 g × 
∴ Final value of sodium -24 = 8.899 gram
Hence The amount of sodium- 24 remain after 90 hours of decay is 8.90 gram Answer
Answer:
355
Step-by-step explanation:
$355 because have you got to add 185 with 140 that will get you that 322 then u got to add to 322 with 30
Answer:
wish i could help but im in school so i cant see the picture<3:(
Step-by-step explanation: