Suppose that, for a certain exam, a teacher grades on a curve. It is known that the mean is 65 and the standard deviation is 6. There are 40 students in the class. How many students should receive a C?
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__________ students
Fill in the blank(s) with the appropriate word(s).
27
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Provide the appropriate response.There is a number that has 2, 5, and 8 as divisors. This number has exactly seven additional divisors. What is the number?
A. 40 B. 320 C. 80 D. 70
Convert using dimensional analysis.0.4 gallons to ounces
A. 12.8 oz. B. 51.2 oz. C. 25.6 oz. D. 4.8 oz.
Solve the problem.The annual population density of a species of insect after n years is modeled by a sequence. Suppose that the initial density of insects is 644 with r = 0.8. Write a recursive sequence that describes this data, where an denotes the insect density during year n.Find the terms a1 , a2 , a3 , ...., a5 . Round to two decimal places, if necessary.
A. a1 = 644, a2 = 1159.20, a3 = 2086.56, a4 = 3755.81, a5 = 6760.45 B. a1 = 515.20, a2 = 412.16, a3 = 329.73, a4 = 263.78, a5 = 211.03 C. a1 = 644 , a2 = 515.20, a3 = 412.16, a4 = 329.73, a5 = 263.78 D. a1 = 644, a2 = 644, a3 = 644, a4 = 644, a5 = 644
Find the absolute value.
A. -465 B. 46.5 C. 0 D. 465