Question

Write in Scientific notation fo 790000000​

Answer 1

Answer:

7.9 × $10^8$

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Answer 2

Answer:

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 79,000,000

New Number: 7.9000000

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 7 . 9 0 0 0 0 0 0

Decimal Count: 1 2 3 4 5 6 7

There are 7 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 7.9 (Please notice any zeroes on the end have been removed)

b = 7

Now the whole thing:

7.9 x 107

Step 4

Check your work:

107 = 10,000,000 x 7.9 = 79,000,000

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