3x/5.. because when the bracket opens then the -7 and +7 get cancelled..
Answer:
The greatest common factor of 39, 42, and 33 is 3
Step-by-step explanation:
Z=kx, 30=8k, so k=30/8=15/4 and z=15x/4, so when x=4, z=15.
Answer:
A
Step-by-step explanation:

x + 4 = ± 2
x = -2
x = -6
<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>