q1.2.3

Question 1 (4 points) Solve the problem. V = 3 mr3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 3.0 cm to 3.1 cm? (Use 3.14 for It.) O A) 11.3 cm3 Main Content O B) 11.5 cm 3 O C) 11.1 cm 3 O D) 0.4 cm 3 Question 2 (4 points) Solve the problem. A long strip of sheet metal 12 inches wide is to be made into a small trough by turning up two sides at right angles to the base. If the trough is to have maximum capacity, how many inches should be turned up on each side? O A) 4 in. on one side, 5 in. on the other O B) 4 in. O C) 6 in. O D) 3 in. Question 3 (4 points) A rectangular page is to contain 24 square inches of print. The margins at the top and bottom of the page are to be 1.5 inches, and the margins on the left and right are to be 1 inch. What should the dimensions of the page be so that the least amount of paper is used? O A) dimensions: 9 in x 6 in O B) 10 in x 6 in c) 9 in x 9 in O D) 10 in x 8 in