Hi i need answers for pre cal 34-40

34. A cubical container that measures 2 inches on a side is tightly packed with 8 marbles and is filled with water. All 8 marbles are in contact with the walls of the container and the adjacent marbles. All of the marbles are of the same size. What is the volume of water in the container? A. 0.38 in3 B. 2.5 in3 C. 3.8 in3 D. 4.2 in 35. A trough has an open top 0.30 m by 6 m and closed vertical ends which are equilateral triangles 30 cm on each side. It is filled with water to half its depth. Find the volume of the water in cubic meters. A. 0.058 B. 0.046 C. 0.037 D. 0.06536. A cone was formed by rolling a thin sheet of metal in the form of a sector of a circle 72 cm in diameter with a central angle of 150. Find the volume of the cone in cc. A. 7733 cm3 B. 7722 cm C. 7744 cm3 D. 7711 cm3 37. Find the percentage increase in volume of a sphere if its surface area is increased by 21% . A. 30.2% B. 33.1% C. 34.5% D. 30.9% 38. A cylinder, a hemisphere and a cone stand on equal bases and have the same heights. What will be the ratio of their volumes? A. 3:2:1 B. 3:2:2 C. 2:1:1 D. 1: 1:1 39. Find the amount of material in a hollow cylinder of height 20 cm, given that the sum of the external and internal radii is 14 cm and the width of the material is 4 cm. A. 5600n cm3 B. 11200n cm3 C. 561 cm3 D. 3600n cm3 40. What would happen to the volume of the cone if the radius of the base of the cone is tripled and the height is doubled? A. The original volume will be multiplied by 6. B. The original volume will be multiplied by 18. C. The original volume will be multiplied by 12. D. The original volume remains unchanged