Question

Using scientific notation, what is the solution to (5.4 * 105) - (1.2 * 103)?


5.412 * 105


5.388 * 102


5.388 * 103


5.388 * 105

Answer 1

Answer:

$5.4*10^{5}-1.2*10^{3}=5.388*10^{5}$

Step-by-step explanation:

We can rewrite $1.2*10^{3}$ as $0.012*10^{5}$.

Now, let's subtract each term:

$5.4*10^{5}-0.012*10^{5}$

we can take a common factor.

$(5.4-0.012)*10^{5}=5.388*10^{5}$

Therefore the answer is  $5.388*10^{5}$.

I hope it helps you!