Answer:
A. x = 9
D. x = 0
Step-by-step explanation:
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
The solutions are x=0 and x=9
Probability sampling simply illustrates a scenario where the subjects of the population have an equal opportunity.
<h3>What is probability sampling?</h3>
Probability simply means the likelihood of the occurence of an event.
In this case, in probability sampling, the subjects of the population have an equal opportunity.
In non-sampling, an equal opportunity isn't given.
Learn more about probability on:
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135 times because 675 divided by 5 is 135. you would divide the number of her heart beats by the number