A study estimated that the correlation coefficient for the sales of winter boots and temperature increasing is r=−0.90. According to this correlation coefficient, how are the sales of winter boots expected to change as the temperature increases?

A: It will stay the same.

B: It will increase.

C: It will decrease.

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

your answer would be 10x - 1

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.