Answer:
the answer is right there x.8.90.^.34>^
Step-by-step explanation:
Answer: ummm i think do times or -
Step-by-step explanation:
Answer with Step-by-step explanation:
We are given that displacement of wave

Where y in cm and t in sec.
a.Compare it with

Amplitude of wave=A
We get A=1.5
Amplitude=A=1.5 cm
b.k=0.68


Using 
Wavelength of the wave=9.2 cm
c.Period=


The period of the wave=0.17 s
Speed of the wave=
Speed of the wave=54.1 cm/s
Answer:
20 feet
Step-by-step explanation:
100-(2*30)=40
40/2=20
3/8x - 1/2x = 3
3/8x - 4/8x = 3
-1/8x = 3
-x = 24
x= -24