For this case we must find an expression equivalent to:
![4,325,000,000](https://img.qammunity.org/2020/formulas/mathematics/middle-school/iw6b79gxwl1ufllpeepgj6osami7gz3om3.png)
To express in scientific notation we must take into account that the power will be positive, that is, the decimal is run to the right.
We test each option.
Option A:
![4,325 * 10^(-9)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bpf4hjnjbbouytbprxhvk46m51fn3xlpkw.png)
If we run the decimal 9 spaces to the left we have:
![0.000000004325](https://img.qammunity.org/2020/formulas/mathematics/middle-school/xi6oagvuddqk5ha04uzncc777z3xxske5s.png)
Option B:
We discard it because the exponent is negative.
Option C:
![4,325 * 10 ^ 6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/riepc67t2uydfeow6vrlmj21skr7dzoty9.png)
We run the decimal 6 spaces to the right
![4,325,000](https://img.qammunity.org/2020/formulas/mathematics/middle-school/p2csjyoydxphvlg6bl0t7sm8rkjon9f1ym.png)
Option D:
![4,325 * 10 ^ 9](https://img.qammunity.org/2020/formulas/mathematics/middle-school/h2tp5tnl6wm2iy3wxcjkno6l2sd87zxyby.png)
We run the decimal 9 spaces to the right
![4,325,000,000](https://img.qammunity.org/2020/formulas/mathematics/middle-school/iw6b79gxwl1ufllpeepgj6osami7gz3om3.png)
Answer:
Option D