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Aleksandr-060686 [28]
3 years ago
15

The population of bacteria can be modeled by the function below, where t represents the time since the population started decayi

ng and f(t) represents the population of the remining bacteria at time t. What is the rate of decay for this population?
Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0

Answer:

See Explanation

Step-by-step explanation:

The question is incomplete. I will assume the function is:

f(t) = 15(0.86)^t

Required

Determine the rate of decay

In an exponential function f(x) = ab^x,

The decay rate of the function is calculated as:

1 - r = b

By comparison:

b = 0.86

So, the equation becomes:

1 - r = 0.86

Make r the subject

r = 1 - 0.86

r = 0.14

<em>The rate of decay is 0.14</em>

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Step-by-step explanation:

Given,

OFFER A

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And

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To find which offer is cheaper.

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<u>For OFFER B</u>

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Usimov [2.4K]
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ahrayia [7]
Hello :
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p is the principal
r is the interest rate per time period
n is the number of time periods.

in your problem:

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p = 2000
r = what you want to find
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formula becomes 900 = 2000 * r * 3

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Answer:

1: yes

2:no

3:yes

Step-by-step explanation:

that's what i know

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