Question

Global online music sales have exploded. It was expected that music lovers would spend 2 billion for online music in 2007, in scientific notation this number is?

Pls help ive been struggling on this for a while

Answer 1

`2*10^(9)`

Explanation:

we know that

One billion is equal to one thousand million

1 billion is equal to 1,000,000,000

so

Multiply by 2

2 billion is equal to 2,000,000,000

Remember that

In scientific notation, a number is rewritten as a simple decimal multiplied by 10 raised to some power, n

n is simply the number of zeroes in the full written-out form of the number

In this problem n=9

so

`2,000,000,000=2*10^(9)`