Answer:
wave length = 30/6 = 5m
Step-by-step explanation:
wave travels 30m in one second.
wave completes 6 cycles in one second.
Answer:
B) 12d-4
Step-by-step explanation:
3d+4+9d-8
3d+9d+4-8
12d+4-8
12d-4
Answer:
16.6%
Step-by-step explanation:
(75/89.95)*100=83.37....
100-83.37...=16.62...
=16.6%