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Answer (4)
you move the decimal point forward until it reaches the one so it looks like this:
1.4 x 10⁵
the exponent, 5, just tells you how many spaces the decimal point moved.
The number 140000 in scientific notation is 1.4 × 10⁵. If more significant figures are needed, you can write it as 1.40 × 10⁵.
Scientific notation is a way of expressing very large or very small numbers in a concise form.
To convert the number 140000 into scientific notation:
Identify the significant figures in 140000, which are 1 and 4.
Place the decimal point after the first significant figure, giving us 1.4.
Count the number of places the decimal point has moved from its original position. In this case, it has moved 5 places to the left.
Express the number as a product of 1.4 and 10 raised to the number of places the decimal has moved.
Therefore, 140000 in scientific notation is 1.4 × 105.
This representation has two significant figures. If more significant figures are needed, such as three significant figures, it can be expressed as 1.40 × 105.
The scientific notation for 140,000 is 1.4 × 1 0 5 . It can also be written as 1.40 × 1 0 5 if you want to indicate additional significant figures. This notation helps to express large numbers in a concise and manageable form.
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