Question

A cylindrical vase has a diameter of 6 inches. At the bottom of the vase, there are 7 marbles, each of diameter 3 inches. The vase is filled with water up to a height of 12 inches.

Which of the following could be used to calculate the volume of water in the vase?

π(12in)2(3in) − 7(four over threeπ(1.5in)3)
π(3in)2(12in) − 7(four over threeπ(1.5in)3)
π(12in)2(3in) − 1.5(four over threeπ(7in)3)
π(3in)2(12in) − 1.5(four over threeπ(7in)3)

Answer 1

π(3in)2(12in) − 7(four over threeπ(1.5in)3)

Answer 2

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Seafoam
π(3in)2(12in) − 7(four over threeπ(1.5in)3)
\(\color{#0cbb34}{\text{End of Quote}}\)

yeah

volume of cylinder - volume of 7 spheres

Answer 3

What is the surface area of a sphere that has a radius of 5 units? Use 3.14 for π.

254 units2
300 units2
314 units2
384 units2

Answer 4

314

Answer 5

This ones really easy but just to be sure

Answer 6

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Seafoam
314
\(\color{#0cbb34}{\text{End of Quote}}\)

That's correct