Professor Melendez has 10 students in her college
algebra class. Their ages are shown below.
When the outliers are removed, what is the mean
age of the remaining students? Round your
answer to the nearest tenth
19. 27, 19, 18, 18, 18.47, 19, 20,18
The mean age of the students in the class is 22.3.
The median age of the students is 19.
What is the median age of the remaining
students?
There are two outliers in the data from Professor
Melendez's. class and
DONE W
activity

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

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