Question

proof check my work?

Answer 1

\[\left(\begin{matrix}6*10^{24} \\ 8*10^{8}\end{matrix}\right)\]

Answer 2

is it 7.5*10^15

Answer 3

Try inputting them in the calculator and if they're the same and then it should be correct

Answer 4

well i have to put it in scientific notation not an exact answer

Answer 5

But if they exact answer is the same for both then you know they are correct

Answer 6

For example 2+2 = 6-2. If you put 2+2 in the calculator you get 2+2 = 4. And if you put in 6-2, you get 6-2 = 4. Therefore 2+2 = 4 = 6-2.

Answer 7

this is how the answer is supposed to look like http://static.k12.com/bank_packages/files/media/mathml_9ab1f2be5153d1fe7e197091988cf065b29f5f5a_1.gif

Answer 8

but there are four different choices, i know how to use a caculator

Answer 9

Sorry I skimmed over your question and assumed it was something else since it wasn't formatted the way I usually see it such as (x/y)
Let's ignore the values before 10. Since 10^n where n is any value would only add zeros. For example 10^2 = 100, 10^3 = 1000. Therefore you can separate these.
10^24/10^8 = 10^16.
Now you have 6/8. You can see that 6 and 8 are divisible by a common factor of 2.
Therefore you now have 3/4. 3/7 by common knowledge is 75%. Therefore since you have 0.75 (or 75%) x10^16 from before. You can get that 0.75x10^16 is the same as 7.5x10^15.
Tldr your answer of (6x10^24)/(8x10^8) = 7.5x10^15 is correct.