It is just right
Tea. 15. 90.
——- = —— = ———-
Liters 2. 12. When you multiply each by 6 you wil get the other amount it is just grater x6
849-1.5=847.5
6.8-4.8=2
847.5 divided by 2 =423.75
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.
51 ÷ 3 = 17
17 were in the van
51 - 17 = 34
34 were in the bus
Answer:
The additive inverse of 0 is 0.
