Answer: 173: -432° - 16196: -5
Step-by-step explanation: Simplify your expression and there is your answer.
Answer:
58
Step-by-step explanation:
58.58 - 0.58 = 58
Answer:
$1260
Step-by-step explanation:
70/100 × $1800 = $1260
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.