Lucas and Erick are factoring the polynomial 12x^3 - 6x^2 + 8x - 4. Lucas groups the polynomial (12x^3 + 8x) + (-6x^2 - 4) to factor. Erick groups the polynomial (12x^3 - 6x^2) + (8x - 4) to factor. Who correctly grouped the terms to factor? Explain.
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0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

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option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,