Mary wants to fill in a cylinder vase. at the flower store they told her that the vase should be filled 3/4 for the flowers to last the longest. her cylinder vase has a radius of 4in and a height of 10in. how much water should mary pour into the vase?

7

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correct choice is b

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when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,

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