A, the relationship lasts over a given period of time.
Answer:
I believe its C
Step-by-step explanation:
Answer:
32
Step-by-step explanation:
Side AD = 4
9-5=4
Side DC = 13
a^2+b^2=c^2
5^2+12^2=c^2
25+144=c^2
169=c^2
13=c
Side AC = 15
a^2+b^2=c^2
9^2+12^2=c^2
81+144=c^2
225=c^2
15=c
We need to find time taken to reach arrow to its maximum.
The path of the arrow can be modeled with the equation
.
Differentiating the given equation w.r.t x and equate it to zero.

Putting value of x = 21 sec in given equation, we get :

Therefore, time taken to reach maximum height is 21 seconds.