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The Graph Below Shows the Height of Sand in an Hourglass

Question 122

Multiple Choice

The graph below shows the height of sand in an hourglass at various times. Use the graph to find the average rate of change of the height of the sand.
 The graph below shows the height of sand in an hourglass at various times. Use the graph to find the average rate of change of the height of the sand.    A)   1 \mathrm {~mm}  per second B)   0.85 \mathrm {~mm}  per second C)   0.75 \mathrm {~mm}  per second D)   1.3 \mathrm {~mm}  per second


A) 1 mm1 \mathrm {~mm} per second
B) 0.85 mm0.85 \mathrm {~mm} per second
C) 0.75 mm0.75 \mathrm {~mm} per second
D) 1.3 mm1.3 \mathrm {~mm} per second

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