Answer:
Step-by-step explanation:
Y=cos(x+r/2)
Here's what I got for the first question.
Did you want answers for the second one? I couldn't read that part of the image very well, if you did.
Answer:
D
Step-by-step explanation:
Well, since t = time in air, we already know that it traveled 2 seconds.
H = height in meters, and H = 18
So, after 2 seconds the object is 18m in the air
So, option D
Answer:
18
Step-by-step explanation:
To continue where you left off, ...

The square root of 324 is 18.