For this case we have the following functions:

We must find
. By definition we have to:

So:

Finally, the composite function is:

Answer:

Answer:
The speed of the boat is 29 km/h and the speed of the stream is 19 km/h.
Step-by-step explanation:
Answer:
Angle #4
Step-by-step explanation:
4 & 5 are equal, and opposite.
1 & 2 are also congruent by this standard.