Solve the problem.
The graph shows the amount of water in a 200-gallon tank after x minutes have elapsed. (i) Is the water entering or leaving the tank? (ii) Find the x-intercept and the y-intercept.
A. Entering; x-intercept is 200 and y-intercept is 0
B. Leaving; x-intercept is 0 and y-intercept is 200
C. Leaving; both intercepts are 0
D. Entering; both intercepts are 0
Answer: D
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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: all real numbers range: all real numbers intercepts: (-2, 0), (0, 2), (2, 0) symmetry: none B. function domain: {x|x ? -2} range: {y|y ? 0} intercepts: (-2, 0), (0, 2), (2, 0) symmetry: none C. function domain: {x|x ? 0} range: {y|y ? -2} intercepts: (-2, 0), (0, 2), (2, 0) symmetry: y-axis D. not a function
Multiply and simplify.
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A. 
B. 
C. - 
D. - 
The frequency of repair for the trucks owned by a trucking firm over a five-year period has been tabulated. The results are shown in the frequency distribution below. Find the mean number of repairs over the five-year period. Please round your answer to the nearest tenth. Time RepairedFrequency1 - 3 223 - 5 535 - 7 717 - 9 1089 - 11 10211 - 13 12013 - 15 14615 - 17 13517 - 19 9819 - 21 8421 - 23 4223 - 25 1225 - 27 8
A. mean = 11.9 B. mean = 10.0 C. mean = 11.6 D. mean = 13.4 E. mean = 13.1
Insert either < or > to make a true statement.-4.09 ___ -4.1
A. < B. >