Exam 10: Sequences, Series and Probability

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Find the sum. Find the sum.

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Find the fourth partial sum for the given sequence. Find the fourth partial sum for the given sequence.

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A contest will have five cash prizes totaling $11,000, and there will be a $400 difference between successive prizes. Find the first prize.

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Without expanding completely, find the term in the expansion of the expression that contains Without expanding completely, find the term in the expansion of the expression that contains   .  . Without expanding completely, find the term in the expansion of the expression that contains   .

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Find the sum. Find the sum.

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To win a state lottery game, a player must correctly select six numbers from the numbers 1 through 45. Find the total number of selections possible.

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To win a state lottery game, a player must correctly select six numbers from the numbers 1 through 49. Find the total number of selections possible if a player selects only even numbers.

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Find the fourth term of the recursively defined infinite sequence. Find the fourth term of the recursively defined infinite sequence.

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A man is 50 years old and a woman is 41 years old. The probability that the man will be alive in 10 years is 0.71, whereas the probability that the woman will be alive 10 years from now is 0.86. Assume that their life expectancies are unrelated. A. Find the probability that they will both be alive 10 years from now. B. Find the probability that neither one will be alive 10 years from now. C. Find the probability that at least one of the two will be alive 10 years from now.

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Express the sum in terms of n. Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) (Hint: Use the theorem on sums to write the sum as Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) . Next, use the following formulas Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) and the theorem on the sum of a constant.)

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Find the smallest positive integer j for which the statement is true. Find the smallest positive integer j for which the statement is true.

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Consider any nine points such that no three are collinear. How many lines are determined?

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Evaluate the expression. Evaluate the expression.

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A girl has three skirts, ten blouses and five sweaters. How many different skirt-blouse-sweater combinations can she wear?

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During 1990, smoking caused 418,890 deaths in the United States. Of these deaths, cardiovascular disease accounted for 179,820, cancer for 151,322, and respiratory diseases such as emphysema for 84,475. Find the probability that a smoking-related death was the result of either cancer or cardiovascular disease.

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A rubber ball is dropped from a height of 45 feet. If it rebounds approximately two-thirds the distance after each fall, use an infinite geometric series to approximate the total distance the ball travels.

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Use the binomial theorem to expand and simplify. Use the binomial theorem to expand and simplify.

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Use the principle of mathematical induction to find the equivalent expression for every positive integer n. Use the principle of mathematical induction to find the equivalent expression for every positive integer n.

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Express the sum in terms of n. Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) (Hint: Use the theorem on sums to write the sum as Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) . Next, use the following formulas Express the sum in terms of n.   (Hint: Use the theorem on sums to write the sum as   . Next, use the following formulas   and the theorem on the sum of a constant.) and the theorem on the sum of a constant.)

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Bode's sequence, defined by Bode's sequence, defined by   can be used to approximate distances of planets from the sun. These distances are measured in astronomical units, with 1 AU = 93,000,000 mi. For example, the third term corresponds to earth and the fifth term to the minor planet Ceres. Find the 5th term of the sequence. can be used to approximate distances of planets from the sun. These distances are measured in astronomical units, with 1 AU = 93,000,000 mi. For example, the third term corresponds to earth and the fifth term to the minor planet Ceres. Find the 5th term of the sequence.

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