Question

Which is the best estimate for written in scientific notation?

Answer 1

I'm assuming you mean which one is written properly? It would be either 3 x 10^4 or 6 x 10^4.

Hope it helps!

Answer 2

For this case we have the following expression:

$\frac{8.9*10^8}{3.3*10^4}$

Rewriting the expression we have:

$\frac{8.9}{3.3} \frac{10^8}{10^4}$

For power properties we have:

In the division, Same base the exponents are subtracted

We have then:

$\frac{8.9}{3.3}*10^{8-4}$

$\frac{8.9}{3.3}*10^{4}$

$3*10^{4}$

Answer:

The best approach in scientific notation is given by:

$3*10^{4}$