Investment Portfolio: In Exercise 57 and 58, you invest in AAA-rated bonds, A-rated bonds, and B-rated bonds. The average yields are
Use the inverse of the coefficient matrix of this system to find the amount invested in each type of bond for the given total investment and annual return.
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Chapter 7 Solutions
College Algebra
- Evaluate C(x,(x−1))arrow_forwardWhen the federal government incurs additional debt to acquire an asset, under current budgeting procedures the deficit while under capital budgeting procedures the deficit does not change, increases does not change, decreases increases, does not change decreases, does not changearrow_forwardA survey was conducted among 79 patients admitted to a hospital cardiac unit during a two-week period. The data of the survey are shown below. Let B = the set of patients with high blood pressure. Let C= the set of patients with high cholesterol levels. Let S = the set of patients who smoke cigarettes. Answer parts (a)-(d) below. n(B) = 39 n(C) = 32 n(S) = 35 n(BNS) = 14 n(BNC) = 14 n(B ncns) = 8 n[(BNC) U (BNS) U (CNS)] = 25 (a) Find the number of these patients that had either high blood pressure or high cholesterol levels, but not both. The number of cities that had high blood pressure or high cholesterol levels, but not both, is.arrow_forward
- Calculate (a + b) ·ở where a = (-1,2, 3), 6= (1, 1, 1) and = (2, -2, 1) %3Darrow_forwardA survey was conducted among 73 patients admitted to a hospital cardiac unit during a two-week period. The data of the survey are shown below. Let B = the set of patients with high blood pressure. Let C= the set of patients with high cholesterol levels. Let S = the set of patients who smoke cigarettes. Answer parts (a)-(d) below. n(B) = 33 n(C) = 30 n(S) = 27 n(BNS) = 8 n(B n C) = 10 n(B n cns) = 3 n[(BNC) U (BNS) U (CNS)] = 20 C... (a) Find the number of these patients that had either high blood pressure or high cholesterol levels, but not both. The number of cities that had high blood pressure or high cholesterol levels, but not both, is. (b) Find the number of these patients that had fewer than two of the indications listed. The number of patients that had fewer than two of the indications listed is. (c) Find the number of these patients that were smokers but had neither high blood pressure nor high cholesterol levels. The number of patients that were smokers but had neither high…arrow_forwardc. Suppose Primo Pizza's profit on a given day is always the same as the profit of Pizza Supreme's profit 2 days later. i. Write a function formula for p using the function s. p(x) Preview ii. Write a function formula for s using the function p. s(x) Previewarrow_forward
- Determine the value(s) of x such that 6 -2 -6 . [x 2 1] 2 1]-2 = [0] 1 -1 -6 -4 -1 x = %3Darrow_forwardFind leng th of the Cardioid V-ag from e -oto0 - 1 %3Darrow_forwardRoll a pair of 6-sided dice (one blue dice and one red dice) repeatedly, until the sum of the two dice is 7 or larger. Let X denote the value of the blue die on the final roll, and let Y denote the value of the red die on the final roll. PY|x|(3|4) =?arrow_forward
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