Question

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Select the correct scientific notation form of this numeral. 1,263

(1) 12.63 × 10 ^ 2

(2) 1.263 × 10 ^ 3

(3) 12.63 × 10 ^ 3

(4) 1.2 × 10 ^ 3

Answer 1

The correct scientific notation form of the numeral 1,263 is 1.263 ×
`10^3`.

Step-by-step explanation:

To express the number 1,263 in scientific notation, we need to move the decimal point so that the number becomes between 1 and 10.

Here are the options:

1. 12.63 ×
   `10^2`
2. 1.263 ×
   `10^3`
3. 12.63 × 
   `10^3`
4. 1.2 ×
   `10^3`

The correct answer is option (2) 1.263 ×
`10^3`. This is because we moved the decimal point three places to the left, resulting in a number between 1 and 10, and the exponent becomes positive.

Answer 2

25.13(5512)
4568%of the time is 56789
5678
4333