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Savatey [412]
3 years ago
15

Problem ID: PRABK2AZ

Mathematics
1 answer:
Vaselesa [24]3 years ago
8 0

Answer: f(n+1) = 3 f(n)

Step-by-step explanation:

  • A recursive formula is used to determine each term of a sequence using preceding term or terms.

Given sequence : 2.5, 7.5, 22.5, 67.5, 202.5,...

Here,

2.5\times 3=7.5\\7.5\times3= 22.5\\22.5\times 3= 67.5\\67.5\times3=202.5

Common ratio = 3

Let f(n) be a term in this sequence then the next term will be f(n+1) = 3 f(n), where n is a natural number .

Required recursive formula :  f(n+1) = 3 f(n)

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What is the value of x in the proportion below? 1/2/4=x/28
True [87]

Answer:

depends on whether you meant (1/2)/4  or 1/ (2/4)

Step-by-step explanation:

1/2                 x

---------- = -------------

4                   28

Using cross products

1/2* 28 = 4x

14 = 4x

Divide by 4

14/4 = 4x/4

7/2 =x

If you meant

1                 x

---------- = -------------

2/4                   28

1 * 28 = 2/4 x

28 = 1/2 x

Multiply each side by 2

28*2 = 1/2x*2

56 =x

7 0
3 years ago
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CaHeK987 [17]

Answer: $78

Step-by-step explanation:

From the question, we are informed that the stock of Company A gained 2% today to $79.56. The opening price of the stock in the beginning of the day will be calculated as:

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= (100% / 102%) × 79.56

= 1/1.02 × 79.56

= 79.56/1.02

= 78

Therefore, opening price of the stock in the beginning of the day is $78

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mathisfun.com/geometry/construct-linebisect.html

Here is a useful link to the correct steps. The instructions may not be exactly the same but I think you can do it.
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