Determine whether triangle tjd is congruent to triangle sek
given
t (-4,-2), j (0,5), d (1,-1), s (-1,3), e (3,10), k (4,4)
and explain the reason.

choose one answer.
a. no, by aas
b. yes, by sas
c. no, by asa
d. yes, by sss

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?