Answer:3
Step-by-step explanation:because from cm to km you have to divide by 100,000 to get km from cm so 300,000/100,000=3
Answer:

Step-by-step explanation:
The given function is

To find the inverse of this function, we interchange x and y.

we now solve for y.

Take the sine inverse of both sides to obtain;

Hence the inverse of the given function is;

where 
See the attached picture for solution:
what do you need help with, maybe I can help?
Answer:
1. D
2. A
3. C
4. A
Step-by-step explanation: