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2 months ago

3x7x7x7x7 in index notation 2x9x9x9x2x9plz helpthx

Mathematics

2 answers:

Inessa [12.5K]2 months ago

8 0

Answer:

The index notation for 3x7x7x7x7 is: $3\times 7^4$

The index notation for 2x9x9x9x2x9 is: $2^2\times 9^4$

Step-by-step explanation:

Look at the numbers provided.

3×7×7×7×7 and 2×9×9×9×2×9

We aim to express the numbers in index notation.

Index notation serves as a concise method to represent repeated multiplication of the same value.

Examine the number.

$3\times 7\times 7\times 7\times 7$

In this instance, 3 appears once and 7 appears four times.

Thus, the index notation is: $3\times 7\times 7\times 7\times 7=3\times 7^4$

Now, for the second number.

$2\times 9\times 9\times 9\times 2\times 9$

Here, 2 occurs twice and 9 occurs four times.

Hence, the index notation is: $2\times 9\times 9\times 9\times 2\times 9=2^2\times 9^4$

Zina [12.3K]2 months ago

7 0

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