Three tas are grading a final exam. there are a total of 60 exams to grade. a) how many ways are there to distribute the exams among the tas if all that matters is how many exams go to each ta? b) now suppose you care about counting which students' exams go to which tas. how many ways are there to distribute the exams? c) suppose again, that we are counting the ways to distribute exams to tas and which exam goes to which ta is important. the tas grade at different rates, so the first ta will grade 25 exams, the second ta will grade 20 exams and the third ta will grade 15 exams. how many ways are there to distribute the exams?

.mp4 files, because, video

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

b, i believe, but not sure.

but which class are u may know that first