<span>y" + 9y = 0
m^2 + 9 = 0
m = ± 3i
yH = C1 cos 3t + C2 sin 3t
yP = C3 t sin 3t + C4 t cos 3t
hope this helps </span>
Answer:


Step-by-step explanation:
Let


Currently:

Two years ago

Required
H and B
We have:

Open bracket

Add 2 to both sides


Substitute 

Collect like terms


Substitute
in 



Answer:
6(y + 4) = -3(2y - 2) + 8y
6y + 24 = -6y + 6 + 8y
6y + 24 = 2y + 6
Subtract -2y on both sides
4y + 24 = 6
Subtract -24 on both sides
4y = -18
y = - 4.5
Answer:
<u>A = πR^2</u>
Step-by-step explanation:
<h3>Please refer to the attachment for explanation.</h3>
Answer: The answer is C
Step-by-step explanation: