Decide which of the following (putative) equivalences are always true, and which are not. give some arguments to support your answers (but they don't need to he formal proofs). here p(x) and q(x) are two boolean variables depending on x. forall x(p(x) q(x)) identical-to forall xp(x) forall xq(x) forall x(p(x) q(x)) identical-to forall xp(x) forall xq(x) x(p(x) q(x)) identical-to xp(x) xq(x) x(p(x) q(x)) identical-to xp(x) xq(x)

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Tan198=asin164=? how to solve this? ?

Will mark brainliest for correct answer! i have been on this problem for an hour and can't find the answer. i'm begging here! incase you cant read the instructions in the picture because of too much or too little lighting: note: enter your answer and show all the steps that you use to solve this problem in the space provided.write a list of steps that are needed to find the measure of b. provide all steps as clear as possible, !