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Verdich [7]
3 years ago
14

HELP!!

Mathematics
2 answers:
ira [324]3 years ago
6 0

Answer:

A. <em>f(n) = log0.98(n/74)</em>

<em />

(got it right on edmentum)

<h2>for your assurance please look at the picture below↓</h2>

Sophie [7]3 years ago
5 0

Answer:

Option A: f(x) = log_0.98 (n/74)

Step-by-step explanation:

We are told that that the number of species is decreasing by 2% per year.

Thus, number of species each year is 98% or 0.98 of number of species the previous year. .

We are told that there are currently 74 species of amphibians in the rain forest.

Thus, n/74 will represent a fraction of the current number of species.

Thus, the logarithmic function that models the time can be written as;

f(x) = log_0.98 (n/74)

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If y varies directly with x and y = 2 when x = 10, then what is the value of y when x = 40? A. 8 B. 45 C. 200 D. 320
Leto [7]

Answer:

A

Step-by-step explanation:

given that y varies directly with x then the equation relating them is

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to find k use the given condition y = 2 when x = 10

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