Answer:
2,3,5,then the last one
Step-by-step explanation:
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.
The answer is -7
no to sure though
[-(+2)(-3)(-1)(+4)=]
- (+2)(-3)(-1)(+4)=
- (-6)(-1)(+4)
(6)(-4) = -24
Answer:
Step-by-step explanation:
6 is the thousands place
0 (right next to it) is the 10 thousands place
9 is the hundred thousands place. There is only 1 nine present so the answer is unique.
