(Solved): Part B (#4), Part B (#8) Solve step by step 4. Plumbing What is the capacity in gallons of a cylind ...

4. Plumbing What is the capacity in gallons of a cylindrical water tank $$3\mathrm{ft}$$ in diameter and $$8\mathrm{ft}$$ high? $$(1{\mathrm{ft}}^3=7.48\mathrm{gal}$$.) (Round to one decimal place.) 5. Painting How many quarts of paint will it take to cover a spherical water tank $$25\mathrm{ft}$$ in diameter if one quart covers $$50{\mathrm{ft}}^2$$ ? 6. Construction A hole must be excavated for a swimming pool in the shape shown in the figure. How many trips will be needed to haul the dirt away if the truck has a capacity of $$9{\mathrm{m}}^3$$ ? (Remember: A fraction of a load constitutes a trip.) 7. Manufacturing How many cubic feet of propane will the tank in the figure contain? $$\left(1{\mathrm{ft}}^3=1728{\mathrm{in}}^3\right)$$ (Round to the nearest tenth of a cubic foot.) 8. Industrial Technology What must be the height of a cylindrical 750 -gal tank if it is $$4\mathrm{ft}$$ in diameter? $$(1{\mathrm{ft}}^3?7.48$$ gal.) (Round to the nearest inch.)