To find the gold per cubic meter you have to divide the amount of gold by the size of the area. So you would do .78/1.5 which would give you .52g/m3
The answer is approximately 8.1
Is the 10 taking away 5 or was it meant to me 10.5 ?
I think the answer is D) 8 over 32 multiplied by 7 over 31
Hopefully that helped! :)
Area = pi*r^2
Circumference = 2pi*r
Step 1: find the radius from area
81pi=pi*r^2
81=r^2
9=r
Step 2: plug in radius to the circumference equation
Circumference = 2pi*r
18pi is the answer, otherwise know as 56.52 as well.
