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Nata [24]
3 years ago
5

In a lab experiment, 490 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to dou

ble every 6 hours. How long would it be, to the nearest tenth of an hour, until there are 5210 bacteria present?
Mathematics
1 answer:
andrew11 [14]3 years ago
3 0

Answer:

20.5

Step-by-step explanation:

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In a right triangle abc, cd is an altitude, such that ad=bc. Find ac, if ab=3 cm, and cd= square root 2 cm.
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      <u>ΔACB</u>                                               <u>ΔCDA</u>

AC² + BC² = AB²                           AD² + CD² = AC²  

          BC² = AB² - AC²                 BC² + CD² = AC²        (AD=BC is given)

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                         (3)² + (√2)² = 2AC²            (AB=3 and CD=√2 were given)

                          9  +   2    = 2AC²

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                                \sqrt{\frac{11}{2} }     = AC

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