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Gennadij [26K]
3 years ago
9

The function f(x) = 30(1.4)x gives the number of bacteria in a science experiment, where x is the number of days after the start

of the experiment. To the nearest whole number, how many bacteria will there be after 4 days?
Mathematics
1 answer:
Rainbow [258]3 years ago
6 0

Answer:

115 bacteria

Step-by-step explanation:

The function that gives the number of bacteria in a science experiment is:

f(x) = 30(1.4)^x

Where x is the number of days

After 4 days (x = 4), the number of bacteria will be:

f(4) = 30 * (1.4)^4

f(4) = 39 * 3.8416

f(4) = 115.248 = 115 (To the nearest whole number)

The number of bacteria after 4 days is 115.

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4 years ago
What equation is equivalent to x2 + 20x + 81 = -27? Can you show me how you got the answer please
Alla [95]

The equivalent equation is x² + 20x = -102

<h3>Simplification of quadratic equation</h3>

The equivalent equation can be obtained by factorizing or simplifying the given quadratic equation as shown below;

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<em>collect similar terms together</em>

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The equation can also be written as x² + 20x = -102

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Learn more about simplification of quadratic equation here: brainly.com/question/1214333

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2m+5=5(m-7)-3m
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3 years ago
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