Question

Multiply and give the answer in scientific notation: (2.3 x 10-3)(3 x 108)

Answer 1

(2.3 x 10^-3)(3 x 10^8)
=(2.3 x 3)(10^-3 x 10^8)
= 6.9 x 10^5

hope it helps

Answer 2

Scientific notation of
`(2.3* 10^(-3))* (3* 10^(8))` is
`6.9* 10^(5)` .

Explanation:

As given the expression in the question be as follow .

`= (2.3* 10^(-3))* (3* 10^(8))`

Simplify the above terms

`= 2.3* 10^(-3)* 3* 10^(8)`

`= 2.3* 3* 10^(-3)* 10^(8)`

Now by using the exponent property

`x^(a)* x^(b) = x^(a + b)`

Thus apply this property in the above

`= 6.9* 10^(-3+8)`

`= 6.9* 10^(5)`

Therefore scientific notation of
`(2.3* 10^(-3))* (3* 10^(8))` is
`6.9* 10^(5)` .