Step-by-step explanation:
You have to do first and second derivatives :
y = a sin 3x + b cos 3x
dy/dx = 3a cos 3x - 3b sin 3x
d²y/dx² = - 9a sin 3x - 9b cos 3x
Next, you have to compare it :
let d²y/dx² = ky,
-9a sin 3x - 9b cos 3x = k(a sin 3x + b cos 3x)
-9(a sin 3x + b cos 3x) = k(a sin 3x + b cos 3x)
Therefore, k is equals to 9.
23.75 miles, because you would take 4 and 3/4 (4.75) and multiply by 5 :)
Answer:
the bottom right
Step-by-step explanation:
The person above is correct
Answer:
There is a 30% decrese.
Step-by-step explanation: