Question: which of the following represents the graph of the system of equations shown below: x+y=3 5x-6y=6

  graph A

Step-by-step explanation:

Dividing by the constant on the right lets you put each equation into intercept form:

These tell you the first equation has x- and y- intercepts of 3, so only graph A is appropriate. The second equation has an x-intercept of 1.2 and a y-intercept of -1, which also agrees with graph A.

_____

Intercept form is ...

  x/x-intercept + y/y-intercept = 1

I find this form convenient for graphing when the equation is originally in standard form, as these are.

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.

not enough information

step-by-step explanation:

we cannot know this, because the other students could have handed out 10 flyers, or they could have handed out 100. one way, the mean would go up, and another way, the mean would go down.