Question

For questions 2-3 what is each number when written in scientific notation

2.)1,220,000,000

3.)0.0287

Answer 1

`1.22 * 10 ^(9) \\ 2.87 * 10 ^( - 2)`

Answer 2

For scientific notation, we write one number to the left of the decimal point and the other numbers are written as a power of ten.

2.)1,220,000,000

`1.22*10^(9)`

3.)0.0287

We can write this in fraction form as:

`(287)/(10000)`

So, when 10000 will go up that is in numerator it will hold a negative power.

So, in scientific notation it will be
`2.87*10^(-2)`