The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y.

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what are the wavelengths for x-rays with frequency 3 × 1018?

The distance between two peaks in a wave is called the wavelength. This value is equal to the speed of light divided by the frequency.

Wavelength = c/f
Wavelength = 3x10^8 / 3x10^18
Wavelength = 1 x 10^-10 m = 0.1 nm

Hope this answers the question. Have a nice day.

a

step-by-step explanation:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0