Question

Which of the following pairs is not correctly written in scientific notation? 1,207,000 = 1.207 × 106 6,500 = 6.5 × 102 901 = 9.01 × 102 40,200 = 4.02 × 104

Answer 1

6,500 is 6.5 x 10 to the third power not 6.5X10 to the second

Answer 2

6,500 = 6.5 × 10² is not written correctly.

Explanation:

In the scientific notation we write a very large or very small number in easy notation of the product of a number between 0 to 9 and exponent of 10,

For this,

If we move decimal to the left side then the exponent of 10 is positive number of shifting,

While, if we move decimal to the right side then the exponent of 10 is negative number of shifting,

By the above explanation,

`1207000=1.207* 10^6`

`6500=6.5* 10^3`

`901=9.01* 10^2`

`402000=4.02* 10^4`