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
Solution:
Given: 35.052
The standard form is: 35.052
3 is in the tens place. 3 = 3 × 1
5 is in the tens place. 5 = 5 × 1
0 is in the tenths place. 0.0 = 0 × 1/10
5 is in the tenths place. 0.05 = 5 × 1/100
2 is in the tenths place. 0.002 = 2 × 1/1000
Step-by-step explanation:
first spinner:
5 is written once :1
total numbers: 13
formula: probability : occurrence of number/total numbers
probability : 1/13.
second spinner:
even numbers: 2,4,6,8,10,12
total : 6 numbers
total numbers: 13
with formula,
probability: 6/13
third spinner:
multiple of four: 4,8,12
total: 3
total numbers: 13
according to formula:
probability: 3/13.
It is subtracting the current number by 1/2 OR you can divide by 2. each time.
32 / 2= 16
16 / 2=8
8/2=4
4/2=2
2/2=1
Hope this helped!