Which sequence of transformations maps triangle abc onto triangle def.
1. a reflection over the x-axis followed by a reflection over the y axis

2. a 180 rotation about the origin followed by a reflection over the line y=x

3. a 90 degree clockwise rotation about the origin followed by a reflection over the y-axis

4. a translation 8 units to the right and one units followed by a 90 degree counterclockwise rotation about the origin

20 point reward

  1.  a reflection over the x-axis followed by a reflection over the y axis

Step-by-step explanation:

The sequence of corresponding vertices is CCW for both triangles, so an even number of reflections (or a rotation) is involved. (This eliminates choices 2 and 3.)

Segment AB is in the opposite direction of segment DE, so rotation by 90° cannot be involved. (This eliminates choice 4.)

Triangle DEF is apparently a rotation about the origin by 180° of triangle ABC. The equivalent is reflection across both axes. (Matches choice 1.)

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

the balance is found at the link

step-by-step explanation: