Answer I think it is c I hope that right I am sorry for late responds
0.001980 should be your correct answer
If you have
2 KNOWN sides & 1 Angle ;
Use Cosine Rule
If you have 3 KNOWN sides,
Also Cosine Rule
If you have
2 KNOWN angles & 1 side,
Use SINE rule
If it's a right-angled triangle, use SOH CAH TOA
Hopefully this helps
ANSWER
The maximum value is 625
EXPLANATION
The height of the stick that the bird dropped is modeled by the function;

This function is already in the vertex form.
Let me rewrite it clearly for you to see.

When we compare this to;

we have h=0 and k=625.
k=625 is the y-value of the vertex.
This is the maximum value on the graph of this function.
I think it’s the last one