Given, f(x) = 2x + 7 Find f(3)
1 answer:
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Answer: 60 ways.
Explanation: Suppose that we had 5 people, A, B, C, D, and E, and we had to select a P, VP, and S.
For the President, we have 5 different selections.
If we choose a president, then we can only pick 1 from 4 people for the VP.
Using the same logic, we'd have 3 different choices for the S.
Hence, we have 5 · 4 · 3 different ways.
Alternatively, this is:
different ways.
Explanation: Suppose that we had 5 people, A, B, C, D, and E, and we had to select a P, VP, and S.
For the President, we have 5 different selections.
If we choose a president, then we can only pick 1 from 4 people for the VP.
Using the same logic, we'd have 3 different choices for the S.
Hence, we have 5 · 4 · 3 different ways.
Alternatively, this is: