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Pie
4 years ago
5

Find the first four terms of a sequence using the recursive definition. Please help

Mathematics
1 answer:
Ymorist [56]4 years ago
7 0

Answer:

2, 5, 9, 19

Step-by-step explanation:

Using the recursive formula f(n) = 2f(n - 2) + f(n - 1)

with f(1) = 2 and f(2) = 5

f(3) = 2f(3 - 2) + f(3 - 1)

     = 2f(1) + f(2) = (2 × 2) + 5 = 4 + 5 = 9

f(4) = 2f(4 - 2) + f(4 - 1)

      = 2f(2) + f(3) = (2 × 5) + 9 = 10 + 9 = 19

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AVprozaik [17]

Answer:

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Step-by-step explanation:

The relation between time, speed, and distance is ...

  time = distance/speed

If distance is "1 round trip", then the time going is ...

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and the time coming is ...

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Then the average speed for the full round trip is ...

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  average speed = 1/(going + coming) = 1/(0.5/10 +0.5/6) mi/h

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Jack's average speed for the round trip was 7.5 mph.

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3 years ago
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andreev551 [17]
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3 years ago
Jane needs to buy mulch to cover a circular garden
scoray [572]

Answer:

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Step-by-step explanation:

A circle is a locus of a point such that its distance from a point known as the center is always constant.

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Since mulch cost $32.52 per square yard, hence:

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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