## anonymous 4 years ago 1.5*10^11m = km

1. alexwee123

hint* there are 1000 meters in a kilometer

2. anonymous

1.5*10^8 km 150,000,000

3. anonymous

@ryanL. how did you got 1.5*10^8 km. can you show how please.

4. anonymous

$m*10^3 =km$ so we use this conversion $\frac{km}{m*10^3}$ $1.5*10^{11}m * \frac{km}{m*10^3}= \frac{1.5*10^{11} km}{10^3}= 1.5*10^8km$

5. anonymous

@RyanL. can you help me on this problem to check if I got it right. 6.23*10^-7m= nm

6. anonymous

I got 6.24*10^4nm and it seems wrong.

7. anonymous

6.23*10^2 nm look at the conversion

8. anonymous

@RyanL. can you show me

9. anonymous

1m= 1*10^9 nm

10. anonymous

you will need to multiply what you have by 10^9 in order to convert it to nano meters.

11. anonymous

That's why the -7 turns into 2 because -7 + 9 = 2

12. anonymous

thanks

13. anonymous

for everything