Is it true that for every nfa m = (q, σ, δ, q0, f), the complement of l (m) is equal to the set {w ∈ σ* : δ* (q0, w) ∩ (q − f) ≠ ∅}? if so, prove it; if not, give a counterexample.

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Evaluate the following expression 1/3^2

What is the value of x in the equation 2(x-4) = 4(2x + 1)?