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A cell phone tower has a safety light to warn airplanes of its location. It blinks once every 3.5 seconds. If f(m) gives the number of times the light blinks over the course of m minutes, which of the following equations defines f.

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f(m) = 2.5m

f(m) = 210m

answer is C.

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Detailed Solution

Concept- Functions
We have cell phone tower which blinks after every 3.5 seconds or we write it as

minutes
Here, f (m) be the no. After m minutes, the light blinks a number of times.
First, it take

minutes
Second, it take

minutes or we write it as

Third,

minutes or we write it as

Now, for ‘t’ it have

minutes
So, total time Question Image

Hence, the correct answer is option 3) .

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