A new drug has been found to be effective in treating 85% of the people afflicted by a certain disease. If the drug is administered to 300 people who have this disease, what are the mean and the standard deviation of the number of people for whom the drug can be expected to be effective?
Round the answers to the nearest hundredth if necessary.
255; 6.18
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The growth rate G, in hundreds of new cases per day, in the spread of an epidemic depends on the number S, measured in hundreds, of currently sick individuals. The relationship, which is valid for up to 4000 currently sick people (that is, 
), is
.
A: What is the smallest value of S for which the growth rate is 1614 new cases per day (that is, 
)? Round your answer for S to the nearest whole number.B. For S between 0 and 40, what number of currently sick individuals gives the maximum growth rate, and what is that growth rate? Round the growth rate to the nearest whole number, and remember that G is measured in hundreds of new cases per day.C: Explain what is happening at value you found in part B.
What will be an ideal response?
Factor the polynomial using the greatest common binomial factor.x(x + 2) + 15(x + 2)
A. (x2 + 2x)(15x + 30) B. (x2 + 2)(x2 + 15) C. (x - 2)(x - 15) D. (x + 2)(x + 15)
Provide an appropriate response.You are asked to change 5
to an improper fraction. What should be your first step?
A. Multiply 8 and 5. B. Divide 8 by 13. C. Multiply 13 and 5. D. Add 5 and 8.
Graph the function, then find the extreme values of the function on the interval and indicate where they occur.y = 
- 
on the interval -? < x < ?
A. Absolute maximum is 12
on the interval [8, ?);
Absolute minimum is -12
on the interval (-?,3]
B. Absolute maximum is 11
on the interval [9, ?);
Absolute minimum is -11
on the interval (-?,2]
C. Absolute maximum is 11
on the interval [8, ?);
Absolute minimum is -11
on the interval (-?, 3]
D. Absolute maximum is 10
on the interval [8, ?);
Absolute minimum is -10
on the interval (-?,3]