# Question #b4c8b

Sep 16, 2017

$\text{B", "C", "D", "A}$.

#### Explanation:

So this involves the use of rearranging the equation in terms of moving the "decimal".

If we were to reword these values, it would look like this:

$\text{A:}$ $31.2 \times {10}^{2} = 3120$

$\text{B:}$ $3120 \times {10}^{-} 2 = 31.2$

$\text{C:}$ $0.312 \times {10}^{3} = 312$

$\text{D}$ $3.012 \times {10}^{3} = 3012$

These values were rearranged like this because the exponent tells me so. With a positive exponent, you can "move" the decimal to the right an $x$ amount of value places.

A negative exponent is the same but to the left.

Now if we were to order them in ascending order (smallest to greatest): $\text{B", "C", "D", "A}$.

Hope this helps :)