Question

1) Explain how a number is expressed in scientific notation? Give examples.
what changes are observed when the decimal point is moved from left to
write and vice versa​

Answer 1

Answer:

1) A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8.

2) If you have to move the decimal point to the right to get the original number, the exponent will be a positive number, if you have to move the decimal point to the left to get the original number, the exponent will be a negative number. Example: Write 3040 in scientific notation.

3) You should use vice versa when you want to express that something you just said or wrote is true even in the opposite order. So, for example, if you're not particularly fond of your colleague, and you think the feeling is mutual, you can say: I don't like Bill, and vice versa.

Hope it helps you ...