Which number is equal to StartAbsoluteValue negative 12 EndAbsoluteValue minus StartAbsoluteValue Negative 3 EndAbsoluteValue?
1 answer:
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Answer:
P=0.66
Step-by-step explanation:
We know that Among 9 electrical components, exactly one is known not to function properly. If 3 components are randomly selected.
We calculate the probability that all selected components function properly.
We calculate the number of possible combinations:
We calculate the number of favorable combinations:
Therefore the probability is:
According to the plot, when ,
and
are the amplitudes of the waves
and
, respectively. From the plot it's clear that both
and
are positive, but the maximum value of
is evidently smaller than the maximum value of
. So
, making the answer B.