Use proportions to solve the problem.If a spring stretches 0.8 meter when a 4-kilogram weight is attached to it, how much will it stretch when a 6-kilogram weight is attached to it?
A. 4.2 m
B. 1.2 m
C. 0.2 m
D. 3.2 m
Answer: B
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves and lines about the y-axis.y = 9x, y = - 
, x = 1
A. 
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B. 
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C. 
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D. 82?
Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin.
A. function domain: {x|-9 ? x ? 9} range: {y|-9 ? y ? 9} intercepts: (-9, 0), (0, -9), (0, 9), (9, 0) symmetry: x-axis, y-axis B. function domain: {x|-9 ? x ? 9} range: {y|-9 ? y ? 9} intercepts: (-9, 0), (0, -9), (0, 0), (0, 9), (9, 0) symmetry: origin C. function domain: {x|-9 ? x ? 9} range: {y|-9 ? y ? 9} intercepts: (-9, 0), (0, -9), (0, 9), (9, 0) symmetry: x-axis, y-axis, origin D. not a function
Find the indefinite integral.
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A. 
B. 
C. 
D. 
Use a graphing calculator to approximate all real solutions of the equation.y = x3 - 2x2 - 36x + 72
A. 2 B. 36, 2, 72 C. -6, 2, 6 D. -2, 2, 6