Question

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

2.)1,220,000,000

3.)0.0287

Answer 1

$1.22 \times 10 ^{9} \\ 2.87 \times 10 ^{ - 2}$

Answer 2

Answer:

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

$1.22\times10^{9}$

3.)0.0287

We can write this in fraction form as:

$\frac{287}{10000}$

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

So, in scientific notation it will be $2.87\times10^{-2}$