Well divide the numbers to find the unit rate so it’s 200 meters in a minute I think
If y = cos(kt), then its first two derivatives are
y' = -k sin(kt)
y'' = -k² cos(kt)
Substituting y and y'' into 49y'' = -16y gives
-49k² cos(kt) = -15 cos(kt)
⇒ 49k² = 15
⇒ k² = 15/49
⇒ k = ±√15/7
Note that both values of k give the same solution y = cos(√15/7 t) since cosine is even.
Answer:
no
Step-by-step explanation:
because it's unequal
9:45 + 10 = 9:55
9:55 + 2:00= 11:55 This is what I got
