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irinina [24]
3 years ago
15

A) 4x + 1

Mathematics
1 answer:
tia_tia [17]3 years ago
6 0

Answer:

a) 4x + 1  expression

b) C = 15+ 3n  “it might be a Formula”

c) 3x + 4 = 13 equation

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Write the following series in sigma notation.<br> 7 + 16 + 25 +34 +43 +52 + 61
Solnce55 [7]

The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series

The sigma notation of the series is: \sum\limits^7_{n=1} {9n - 2}

<h3>How to write the series in sigma notation?</h3>

The series is given as:

7 + 16 + 25 +34 +43 +52 + 61

The above series is an arithmetic series, with the following parameters

  • First term, a = 7
  • Common difference, d = 9
  • Number of terms, n = 7

Start by calculating the nth term using:

a(n) = a + (n - 1) * d

This gives

a(n) = 7 + (n - 1) * 9

Evaluate the product

a(n) = 7  - 9 + 9n

Evaluate the difference

a(n) = 9n - 2

So, the sigma notation is:

\sum\limits^7_{n=1} {9n - 2}

Read more about arithmetic series at:

brainly.com/question/6561461

3 0
2 years ago
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Liono4ka [1.6K]

The answer is in the Images

Remember to look at the second image!

5 0
3 years ago
I am less than 40 I have 8 once and2 tens
Gwar [14]
You can simply be 28. 2 tens is equal to 20 and 8 once can be equal to 8. Together they make 28 and together they are less than 40.
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Can somone help me with this please
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The perimeter of ADC is 9.5 cm.

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3+2 x 10 + 4 x 1.000 in standard form​
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Answer:

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