Which of the following equations have exactly one solution?
Choose all answers that apply:
Choose all answers that apply:

(Choice A)
A
19x+18=-19x+18

B 19x-18=-19x+18
(Choice C)
C
-19x-18=-19x+18

(Choice D)
D
-19x+18=-19x+18
Please Answer ASAP

For choice A, we can rearrange the equation to so it has exactly one solution,

For choice B, we rearrange the equation to so this too has exactly one solution,

Rearranging the equation in choice C by eliminating the terms gives us the false equality so this equation has no solutions.

Eliminating in the equation in choice D gives the equality which is always true, so this equation has infinitely many solutions.

Thus, we conclude that choices A and B work.

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.

sinn is the total amount of students now and m were the students before, you subtract them both (n-m) and divide that by m. then, since to get a percentage from a fraction you have to multiply by 100, your answer should look like this: n-m/m*100

step-by-step explanation: