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Mathematics, 21.06.2019 22:30
Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.
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Mathematics, 21.06.2019 23:30
In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.
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Mathematics, 22.06.2019 07:00
Part a: explain why the x-coordinates of the points where the graphs of the equations y = 2βx and y = 8x+4 intersect are the solutions of the equation 2βx = 8x+4. (4 points) part b: make tables to find the solution to 2βx = 8x+4. take the integer values of x between β3 and 3. (4 points) part c: how can you solve the equation 2βx = 8x+4 graphically? (2 points)
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Mathematics, 22.06.2019 08:00
Miriam bought a bushel of apples from the apple orchard to bake apple pies for a bake sale. she started with 126 apples. after the first day of baking, she had 108 apples left. after the second day, she had 90 apples. after the third day, she had 72 apples left. if she continues this pattern, how many apples will she have left after 7 days of baking? apples
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Express as a trinomial (3x-10)(3x-1)...
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