7/8(x-1/2)=-49/80
70/80(x-40/80)=-49/80 make all common denominator
x-40/80=-56/80 divide -49/80 by 70/80 to isolate parentheses
x=16/80 or 1/5 add 40/80 to isolate x
I'm not sure if my answer right because I was rushing but if you follow what I wrote next to the lines you should get the right answer
The wavelength for radio waves with frequency 3 × 10⁹ Hz is 0.1 m.
<h3>What's the relation between frequency and wavelength of electromagnetic waves?</h3>
- For electromagnetic waves travelling in vaccum, the product of frequency and wavelength is the speed of light in vaccum.
- Mathematically, frequency × wavelength = 3×10⁸ m/s (which is speed of light)
- So, wavelength= 3×10⁸/ frequency
<h3>What's the wavelength of radio wave with frequency 3×10⁹ Hz ?</h3>
Wavelength of the radio wave= 3×10⁸/3×10⁹ = 0.1 m
Thus, we can conclude that the wavelength of the radio wave with frequency of 3 × 10⁹ Hz is 0.1 m.
Learn more about the wavelength of electromagnetic wave here:
brainly.com/question/27817563
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Answer:
1
Step-by-step explanation:
First we need to find g (2) from g (2) = 2 ^ 2 to 4.
the result is 4, so f (4) asks, so f (4) = 4-3 = 1
Answer:
98
Step-by-step explanation:
3 and 2 would be 122 since 3 and the 58° are a linear pair making them add up to 180. And 3 and 2 are vertical so they would be congruent.
4 would then have to be 38 since the three angles would have to measure up to 180.
And the 1 would have to be 36 with the same reasoning as before.
Disclamier (I might have done some math wrong since I did it in my head.)
