Question

In Canada in 1998 the estimated number of households that owned 2 or more vehicles was 3.939 x 10 6

Answer 1

In Canada in 1998 the estimated number of households written in standard decimal notation is 3939000

Solution:

Given that in 1998 estimated number of households that owned 2 or more vehicles was $3.939 \times 10^{6}$

Need to represent the number $3.939 \times 10^{6}$ in standard decimal notation.

In this case we need to move the decimal point based on the power of 10.

In our case power of 10 = 6.

Let’s first take a number without $10^6$ and add six zeros on right.

So we get 3.939000000

Now multiplying above number by $10^6$ means moving the decimal after 6 numbers from the current position, that means  

$3.939 \times 10^{6}=3939000.00$

That is 3939000 is required standard decimal notation of scientific notation number $3.939 \times 10^{6}$