According to a recent poll at a university, 73.773.7% of high school seniors in a certain region had a driver's license. a sociologist thinks this rate has declined. the sociologist surveys 600600 randomly selected high school seniors and finds that 430430 have a driver's license. a. pick the null hypothesis.

b. pick the alternative hypothesis.

c. in this context, what does the symbol p represent?

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.

9x

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.