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stira [4]
3 years ago
5

Find the mean of the set of data. Use a calculator if necessary.

Mathematics
2 answers:
kondor19780726 [428]3 years ago
7 0
7
1+5+8+10+11 is 35
35/5 is 7
dangina [55]3 years ago
5 0

Answer:

7

Step-by-step explanation:

mean is average of the numbers

add all values then divide by the numbers

(1+5+8+10+11) / 5

35 / 5 = 7

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Step-by-step explanation:

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goldfiish [28.3K]

Answer:

  • P(t) = 100·2.3^t
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  • 441 per hour, rate of growth at 2 hours
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Step-by-step explanation:

It often works well to write an exponential expression as ...

   value = (initial value)×(growth factor)^(t/(growth period))

(a) Here, the growth factor for the bacteria is given as 230/100 = 2.3 in a period of 1 hour. The initial number is 100, so we can write the pupulation function as ...

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__

(b) P(2) = 100·2.3^2 = 529 . . . number after 2 hours

__

(c) P'(t) = ln(2.3)P(t) ≈ 83.2909·2.3^t

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(d) We want to find t such that ...

  P(t) = 10000

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  2.3^t = 100 . . . . . . . . divide by 100

  t·log(2.3) = log(100)

  t = 2/log(2.3) ≈ 5.5 . . . hours until the population reaches 10,000

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