We have two questions, but we need to find the volume of the spherical tank first.
So the formula we will use to find the volume is:
(4/3)πr³=V
Let's fill in the information we have and solve. We will be using 3.14 for pi.
(4/3)(3.14)6³
(4/3)(3.14)(216)
4.1867×216
I'll be using the repeating decimal for 4.1867, I rounded to 7, but there is a repeating 6.
904.32
So the volume is 904.32 yards³ (or 904.78 if using the full pi)
We have to multiply the volume by 7.15.
904.32×7.15
6,465.89
It will cost $6,465.89 to fill the tank with the liquid.
9>n>17
it means that n can be whatever number between 9 and 17
Answer:
A
Step-by-step explanation:
The first answer is correct because we have a decay factor.
The sample is losing mass, so the number that is being multiplied by a power of x must be less than 1.
If the second answer were used, then the sample would be gaining mass.
Answer:
0.375%
Step-by-step explanation:
i=P*R*T
$360=$8000*R/100*18/12
$360=$960R
$360/$960=$960/960
0.375%=R
Here you'll need to do some online research, using "area of a cone" as your search term. There is a formula! But it's complicated.
Once you've found this formula online, substitute 17 feet for r. The height of the cone has to be calculated from the slant height (these are not the same):
(slant height)^2 = (12 feet)^2 = r^2 + h^2, where h is the actual height of the cone.
The area of the base is pi*r^2, or pi*17^2 square feet.
