Question

Write in scientific notation:
(a) 72,000
(b) 8,040,000,000​

Answer 1

hey..

scientific notation.. the number shd always.. shd we less than.. 1..

so... 72000=0.72×10^5

b. 8040000000..=0.804×10^9..

and also.. trick.. if the number is greater than.. 1..

just.. make the number less than 1 and multiply that into.. 10 power of the number of digits... simple...