Answer:
254 cubic feet.
Explanation:
It is given that the a cylindrical tank is 6 feet across and 9 feet deep. It means
Diameter of cylinder = 6 feet
Radius of the cylinder = 6/2 = 3 feet
Height of the cylinder = 9 feet
The volume of a cylinder is
![V=\pi r^2h](https://img.qammunity.org/2020/formulas/mathematics/middle-school/2x6jh6ysz6ef85wkmp7armtq6fmfcdu3bh.png)
where, r is radius and h is height of the cylinder.
Substitute r=3 and h=9 in the above formula.
![V=\pi (3)^2(9)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/tbb4k9kcgs51vugtvhtvsdyln64v6y1xlg.png)
![V=81\pi](https://img.qammunity.org/2020/formulas/mathematics/middle-school/u3b67v23zfi659jl66mybzejtfiarnds9d.png)
![V=254.46900](https://img.qammunity.org/2020/formulas/mathematics/middle-school/2erdcxhanlq2apmd0k6stusm3qivh1m2m6.png)
We need to find the maximum number of cubic feet. So approx the value to a whole number.
![V\approx 254](https://img.qammunity.org/2020/formulas/mathematics/middle-school/btfhc7q09vnic2nn9rysg93ips0ekjiov8.png)
Therefore, the maximum number of cubic feet of paint the tank will hold is 254 cubic feet.