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Rainbow [258]
2 years ago
5

3x7x7x7x7 in index notation 2x9x9x9x2x9plz helpthx

Mathematics
2 answers:
Leto [7]2 years ago
4 0

3 \times  {7}^{4}
Because there's one 3 & four 7's .

{2}^{2}  \times  {9}^{4}
Because there are two 2's & four 9's
Nikolay [14]2 years ago
3 0

Answer:

1) 3\times 7\times 7\times 7\times 7=3\times 7^4

2) 2\times 9\times 9\times 9\times 2\times 9=2^2\times 9^4    

Step-by-step explanation:

Given : Numbers

1) 3\times 7\times 7\times 7\times 7

2) 2\times 9\times 9\times 9\times 2\times 9

To find : Write the numbers into index notation?

Solution :

Index notation is defined as the shortcut method of writing repeated multiplications by the same number.

Now, The index notation of the given number is

1) 3\times 7\times 7\times 7\times 7

3 repeat 1 time and 7 repeat 4 times.

Index notation is 3\times 7\times 7\times 7\times 7=3\times 7^4

2) 2\times 9\times 9\times 9\times 2\times 9

2 repeat 2 times and 9 repeat 4 times.

Index notation is 2\times 9\times 9\times 9\times 2\times 9=2^2\times 9^4

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