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Elodia [21]
3 years ago
8

a hose fills a hot tub at a rate of 4.97 gallons per minute. How many hours will it take to fill a 336-gallon hot tub?​

Mathematics
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

1.12675hours approximately

Step-by-step explanation:

If the tub was 4.97 gallons it would take 1 minute Right?

To find the the time required to fill the tub divide volume of tub by the rate of hose. We have 336/4.97=67.605minutes

Divide by 60` 67.605/60=1.12675hours approximately

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Step-by-step explanation:

We are given that five nanotubules are inserted in a single cancer cell. Independently of each other, they become exposed to near-infrared light with probabilities 0.2, 0.4, 0.3, 0.6, and 0.5.

Let the event that a cell is killed be 'A' and the event where the ith nanotubule kill the cell be '\text{B}_i'.

This means that the cell will get killed if \text{B}_1 \bigcup \text{B}_2 \bigcup \text{B}_3 \bigcup \text{B}_4 \bigcup \text{B}_5 happens. This represents that the cell is killed if nanotubule 1 kills the cell, or nanotubule 2 kills the cell, and so on.

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P(A) = 1 - [(1 - 0.2) \times (1 - 0.4) \times (1 - 0.3) \times (1 - 0.6) \times (1 - 0.5)]

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P(A) = 1 - 0.0672 = 0.9328

Hence, the probability that the cell will be killed is 0.9328.

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4 years ago
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