Mathematical Logic First-order or predicate logic. Rewrite each of the following formulas so that all their symbols appear explicitly and in order a. 3v₁v₁ Pv₁ b. Vv₁Av₁ ^ BV₁ → ³v₂¬Cv₂ V Dv₂ Please be as clear as possible. Explain your answer. Thank you.

Not sure where to go from here.

Find the following expressions if a = (6r, 0, r), b = (6s, –s, 7s), and c = (2t, 10t, 5). a ·b = 1. 2. a·c = 3. b.c =

21. Writing Explain why the statements LR = RL and ZCBA = LABC are both true by the Reflexive Property of Congruence.

Which is true for all pairs of values in this table? 12 y-149 14 O A y= 5x + 1 о в у-х+3 о с у-5x-1 O Dy =2x+3

Let a=⟨−2,3,4⟩, b=⟨4,5,−2⟩, and c=⟨2,0,1⟩. Determine [(a×b)×c]−[a×(b×c)]. Hint: Try to simplify the expression first to make the calculations easier! Select one: a. ⟨20,−10,−16⟩ b. ⟨12,13,6⟩ c. ⟨24,−5,−18⟩ d. ⟨12,−18,−24⟩ e. ⟨10,−18,−25⟩

Evaluate the expression if r = 3 and t = 11. t² + 8rt + r²

Perform the indicated operation. y 2 y-1 + 2 y² + 7y+12 y²+5y+4 y y-1 + 2 y² + 7y+12 y²+5y+4 ון (Simplify your answer.)

PLEASEEE DO THIS FASTTT ONLY NEED THE ANSWER NO NEED TO SHOW WORK