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Grace [21]
3 years ago
11

This is really confusing for me

Mathematics
2 answers:
balandron [24]3 years ago
6 0

For each alphabet, you're giving it a value. So, since A is the first letter of the alphabet, its value would be 1. Since B is the second letter of the alphabet, its value would be 2, and so on.

What you have to do for A is to find the total number by adding each value from your name. In example, if your name was Bob, it would be 19 (2 + 15 + 2)

For B you just have to write two 3-letter words that would make up 20. An example can be DIG (4 + 9 + 7 = 20)

VikaD [51]3 years ago
4 0
In part A, if a's value is 1 then b is 2 and so on so the first letter of your name will have a number, and for part b you tale 3 letters that make up a word and the number after also equals 20.
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Step-by-step explanation:

<u>Geometric Sequences </u>

It a type sequence in which each term is computed as the previous term by a constant number. The general expression for a geometric sequence is

\displaystyle a_n=a_1.r^{n-1},\ n>0

If we know two terms of the sequence, say n=k and n=p, then

\displaystyle a_k=a_1.r^{k-1}

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a_{20}=483,\ a_{43}=345,\ so

\displaystyle a_{20}=483=a_1.r^{20-1}

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\boxed{a_1=637.77}

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