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Alborosie
2 years ago
6

Write the explicit form of the arithmetic sequence shown below: -4, 3, 10, ...

Mathematics
1 answer:
Vinil7 [7]2 years ago
7 0

Answer:

17

Step-by-step explanation:

_4 to +3 = 7

3 to 10 =7

thus the sequence is 7

the answer is 10+7=17

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4 0
3 years ago
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Problem 2.9 a runner completes the 200-meter dash with a time of 20.19 seconds. part a what was the runner's average speed in me
Elina [12.6K]

Answer:

Average speed = 9.91 m/s

Explanation :

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that's the final answer.

I hope it will help you.



8 0
3 years ago
Isabella save 2 nickels today, if she doubles the number of Nicole, she saves every day, how many days, including today, will it
Elden [556K]

Answer:

  8 days

Step-by-step explanation:

On day 8, Isabella will save 256 nickels, bringing her total to 510.

_____

The number of nickels saved on day n is 2^n. The total is 2^(n+1)-2.

_____

The above can be written down from your knowledge of binary sequences. If you want a more formal development, read on.

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The number of nickels saved on day n is a geometric sequence with first term 2 and common ratio 2. The n-th term of the sequence is ...

  an = a1·r^(n-1) = 2·2^(n-1) = 2^n

The sum of n terms of the sequence is ...

  S = a1(r^n -1)/(r -1) = 2(2^n -1)/(2-1)

  S = 2^(n+1) -2

__

We want S > 500, so ...

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  502 < 2^(n+1)

  251 < 2^n

  log(251) < n·log(2)

  n > log(251)/log(2)

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3 0
3 years ago
Find the distance between the two points.
marusya05 [52]

Answer:

Step-by-step explanation:

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2 3/4 divided by 1/2 ?
Vladimir [108]

Answer:

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Step-by-step explanation:

7 0
2 years ago
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