Question

Select the correct scientific notation form of this numeral using only 2 significant figures.

8,421,032.9266

84 × 10 9
8.4 × 10 10
8.4 × 10 6
None of these

Answer 1

• 8,421,032.9266

The correct scientific notation form of the given numeral using only 2 significant figures is 8.4×10⁶.

8.4×10⁶ is the right answer

Explanation:

• 8,421,032.9266

→We can move the decimal point 6 units towards the left to get the number.

→Then we can multiply the number by 10 to the power 6 to get the required answer.

Answer 2

8.4 × 10^6

Explanation:

Use floating-point system in which numbers are expressed as products consisting of a number between 1 and 10 multiplied by an appropriate power of 10 (as in 1.591 × 10−20)

Hope this helps <3