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17 June, 13:48

Henry is conducting an experiment with 800 bacteria. He found the exponential growth rate to be 2.7% per hour. What is the amount of bacteria present after 21 hours? Round to the nearest whole number. (Hint: Use the exponential growth formula: y = b (1+r) ^t)

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  1. 17 June, 16:31
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    Let's formulate an equation first. For exponential growth, we follow the formula. b = 800, r - 0.027. Hence,

    y = 800 (1+0.027) ^t

    Then, at t = 21, y will be determined

    y = 800 (1+0.027) ^21

    y = 1399.81 = 1400

    Thus, the amount of bacteria present after 21 hours is 1400.
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