Solve the problem.V = 
?r3, where r is the radius, in centimeters. By approximately how much does the volume of a sphere increase when the radius is increased from 1.0 cm to 1.1 cm? (Use 3.14 for ?.)
A. 1.3 cm3
B. 1.5 cm3
C. 0.1 cm3
D. 1.1 cm3
Answer: A
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Solve the problem.The mode equations for a circuit follow:
What are the node voltages v1, v2, and v3?
A. v1 = 100 V, v2 = -120 V, v3 = -500 V B. v1 = 100 V, v2 = 120 V, v3 = 120 V C. v1 = 100 V, v2 = -120 V, v3 = 120 V D. v1 = 100 V, v2 = 120 V, v3 = 500 V
Solve.A circular fountain has a statue in its center, 3 m from the edge. What is the distance around the fountain? Round results to the nearest tenth of a unit.
A. 18.8 m B. 9.0 m C. 16.8 m D. 9.4 m
Provide an appropriate response.Are two equilateral triangles always similar? Explain why or why not.
What will be an ideal response?
Use the minimum and maximum features of a graphing calculator to find approximately the intervals on which the function is increasing or decreasing. Round your values to two decimal places, if necessary.y = 
+ 
- 10
A. inc (10, ?), dec (-?, 2) B. inc (2, ?), dec (-?, 6) C. inc (-?, -2), dec (6, ?) D. inc (6, ?), dec (-?, -2)