Answer:
Step-by-step explanation:
The speed of light is 
and its frequency is 
.
The speed of light is given as:
c = λ * f
where λ = wavelength of light
f = frequency of light
Therefore, the wavelength is given as:
λ = c / f
=> λ = 
=> λ =
The wavelength of the light is
Answer:
is that the full question?
Step-by-step explanation:
Answer:
x=60 and the missing angle is 140
Step-by-step explanation:
40 × 2x + 20= 180
60 + 2x =180
2x=120
x=60
2(60)+20=140
Answer:
4.2 is: 1.) between 4 and 5 closer to 4
7/8 is: 3.) between 0 and 1 closer to 1
-9/5 is: 2.) between -1 and -2, closer to -2
30 x + 15 y
15 (2 x + y)
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