6.79 x 10⁶
Further explanation
Scientific Notation consists of 2 parts
1. the first part: the first digit followed by the decimal point
2. The second part: the power of 10 (the exponents).which shows the number of digits after the decimal point
To add/subtract, the exponents must be the same and then add/subtract the coefficient
- convert the largest exponent
[tex]\tt 7.2\times 10^6\rightarrow 72\times 10^5[/tex]
- subtract the coefficients
[tex]\tt =(72-4.1)\times 10^5\\\\=67.9\times 10^5\rightarrow 6.79\times 10^6[/tex]
