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Len [333]
4 years ago
15

Which of the following is the probability that a red or green marble will be selected from a bag containing 9 red marbles 6 blue

marbles 7 green marbles and 11 yellow marbles if one is selected randomly?
Mathematics
1 answer:
Anna11 [10]4 years ago
8 0
P or red or green = 16/ 33

hope it helped
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The concentration C (in mg/dl), of an antibiotic in a patient’s bloodstream per hour, t, is given by: c(t) = (50t)/(t^2+25) In o
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Answer:

Step-by-step explanation:

<u>Functions </u>

The problem describes a function that expresses the concentration of an antibiotic in mg/dl vs time in hours as:

\displaystyle c(t)=\frac{50\ t}{t^2+25}

We need to find the first value of t such that

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\displaystyle t=\frac{5}{2}=2.5, \ t=10

We need to find the first value, i.e.

t=2.5 \ hours

Now for the graphic method, we plot the graph for the function and a horizontal line at c=4 to find the values of t.

The graph is shown in the image provided below. We can see both values where the funcion and C=4 intersect. Both values coincide with the previously analitically found values

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