The numbers of trading cards owned by 9 middle-school students are given below. (Note that these are already ordered from least to greatest.)
402, 429, 437, 451, 455, 497, 509, 546, 549
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Suppose that the number 549 from this list changes to 441. Answer the following.
(a) What happens to the median?
It decreases by
.
It increases by
It stays the same.
(b) What happens to the mean?
It decreases by
It increases by
0
It stays the same.
х
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?

a and c

step-by-step explanation:

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.

asdsad

step-by-step explanation: