8 pens costs 1.09
1 pen costs 1.09/8=0.13625
Answer:
U were 20% off
Ure estimate was 80%
Step-by-step explanation:
16/20 is 80%
100%-80% is 20%
This item can be solved by the probability theorem called Bayes' theorem which states that the probability of event A occurring given event B is equal to,
P(A/B) = P(A)P(B/A) / P(B)
where P(B/A) is the probability that the test will yield positive if the person has the disease. P(A) is the probability will be present in any particular person which is equal to 0.04.
P(B) is the probability of positive result irrespective of whether the disease is present of not is calculated below.
P(B) = (0.94)x (0.04) + (0.06)(0.96) = 0.0952
Now, solving for P(A/B)
P(A/B) = (0.94)(0.04) / 0.0952 = 0.039
Thus, the answer is approximately 4%.
Answer:
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Step-by-step explanation:
Answer:
Step-by-step explanation:
the information we know about the shape of the stick of butter:
The formula for the volume of a rectangular prism is:
we find the volume by multiplying ll the measurements of the stick.
So we substitute the values to find the volume and we get the following:
the volume of the stick of butter is
