- With which device are earthquakes recorded?

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Solve the equation using the quadratic formula. 3x^2=2(2x+1)? I need to know Molar mass of butane and all i know is partial pressure of dry butane=720.546 barometric pressure is 741.426? People drive on average , 15,104 miles per year. About how many miles each week is the that? Is the Law of Attraction pseudo science?
Its based on quantum physics which is far from pseudo science. If it is, why? What are the values of μ and σ in the standard normal distribution?