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3 years ago

It’s simple I swear!!! what is the square root of 25 times the square root of 9

Mathematics

2 answers:

goldenfox [79]3 years ago

6 0

Answer:

Step-by-step explanation:

1st multiply the numbers: 25 × 9 = 225

2nd factor the number: 225 = √15^2

3rd apply radical rule: √15^2 = 15

Hope I helped :)

Lyrx [107]3 years ago

6 0

Answer:25 square root of 9

=25^9

Step-by-step explanation: if its a graph go to wolfram to see it because i cant draw it .

I hope I helps you.

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ou have two parents, four grandparents, eight great-grandparents, and so forth. (a) If all your ancestors were distinct, what wo

Maslowich

Answer:

Part A:

$2^{40}-2\\=1.0995*10^{12} ancestors$

Part B:

Generations Age=25*39=975 years

Part C:

Some ancestors on different branches of the family tree must be the same.
There could not have been 39 generations in my line of ancestry.

Step-by-step explanation:

Given Data:

Two Parents, Four Grand Parents, Eight great Grand Parents.

Generation=39

Solution:

Part A:

From given data Following series is made:

$2+2^2+2^3+.........+2^{39}$

Now, Above series will become:

$2[1+2+2^2+......+2^{38}]$

From geometric Sequence:

$2[\frac{2^{38+1}-1}{2-1} ]$

$2^{40}-2\\=1.0995*10^{12} ancestors$

Part B:

Generations Age=years*Number of generations

Generations Age=25*39=975 years

Part C:

Number of people lived= 10^11

Ancestors= $1.0995*10^{12} ancestors$

$10^{11}$

It means ancestors are not distinct, it means:

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There could not have been 39 generations in my line of ancestry.

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