Point a(1,3) is reflected across the x-axis to create point a’. the line y=2x-5 pass through point a’
true or false?

True

Step-by-step explanation:

Best to use a graphing calculator or graph it onto paper, after you change Point A after it reflected over the x - axis. The rule for reflection over the x-axis is (x, y) ---> (x, -y), so all you would need to do is change the positive 3 (the y value of A) into -3. So A' = (1, -3)

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.

12r - 8 - 12

you have to combine like terms. below i have bolded the like terms:

12r - 8 - 12

together it combines to:

12r - 20

hope this !