Contemporary Mathematics for Business & Consumers
8th Edition
ISBN: 9781305886803
Author: Brechner
Publisher: Cengage
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Chapter 5.I, Problem 2TIE
(a)
To determine
To calculate: The value of unknown from the equation
(b)
To determine
To calculate: The value of unknown from the equation
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(c) Let
6
0 0
A =
-10 4 8
5 1 2
(i) Find the characteristic polynomial of A and factorise it.
(ii) Determine all eigenvalues of A and find bases for the corresponding
eigenspaces.
(iii) Is A diagonalisable? Give reasons for your answer.
Drapers' Bank offers loans and deposits with interest rate 5% compounded monthly.
(a)
If you deposit £5,000 in a Drapers' Bank account, how much money will be in your account 4 years from now? Enter your answer correct to the
nearest pound.
Answer:
(b) What is the effective interest rate of a Drapers' Bank account? Enter your answer as a percentage correct to 3 significant digits.
Answer:
(c)
Drapers' Bank gives you a loan of £60,000 to start a new company under the condition that you pay back the loan in monthly instalments of EC to
be paid at the end of each month over the next 5 years, starting at the end of this month. Determine the value of C and enter it correct to the nearest pound.
Answer:
most 2, and let
Let P2 denote the vector space of polynomials of degree at
D: P2➡ P2
be the transformation that sends a polynomial p(t) = at² + bt+c in P2 to its derivative
p'(t)
2at+b, that is,
D(p) = p'.
(a) Prove that D is a linear transformation.
(b) Find a basis for the kernel ker(D) of the linear transformation D and compute its
nullity.
(c) Find a basis for the image im(D) of the linear transformation D and compute its
rank.
(d) Verify that the Rank-Nullity Theorem holds for the linear transformation D.
(e) Find the matrix representation of D in the standard basis (1,t, t2) of P2.
Chapter 5 Solutions
Contemporary Mathematics for Business & Consumers
Ch. 5.I - Solve the following equations for the unknown and...Ch. 5.I - Prob. 2TIECh. 5.I - Prob. 3TIECh. 5.I - Prob. 4TIECh. 5.I - Solve the following equations for the unknown and...Ch. 5.I - Prob. 6TIECh. 5.I - Prob. 7TIECh. 5.I - Prob. 8TIECh. 5.I - Prob. 9TIECh. 5.I - For the following statements, underline the key...
Ch. 5.I - Prob. 1RECh. 5.I - Prob. 2RECh. 5.I - Prob. 3RECh. 5.I - Prob. 4RECh. 5.I - Prob. 5RECh. 5.I - Prob. 6RECh. 5.I - Prob. 7RECh. 5.I - Prob. 8RECh. 5.I - Prob. 9RECh. 5.I - Prob. 10RECh. 5.I - Prob. 11RECh. 5.I - Prob. 12RECh. 5.I - Prob. 13RECh. 5.I - Prob. 14RECh. 5.I - Prob. 15RECh. 5.I - Prob. 16RECh. 5.I - Prob. 17RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Prob. 19RECh. 5.I - Prob. 20RECh. 5.I - Prob. 21RECh. 5.I - Prob. 22RECh. 5.I - Prob. 23RECh. 5.I - Prob. 24RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Prob. 26RECh. 5.I - Prob. 27RECh. 5.I - Prob. 28RECh. 5.I - Prob. 29RECh. 5.I - Prob. 30RECh. 5.I - For the following statements, underline the key...Ch. 5.I - Grouping symbols are used to arrange numbers,...Ch. 5.II - Don and Chuck are salespeople for Security One...Ch. 5.II - One-third of the checking accounts at the...Ch. 5.II - Prob. 13TIECh. 5.II - Prob. 14TIECh. 5.II - Last week Comfy Cozy Furniture sold 520 items. It...Ch. 5.II - REI (Recreational Equipment Incorporated) sells a...Ch. 5.II - Prob. 17TIECh. 5.II - Prob. 1RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Prob. 4RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Prob. 16RECh. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Set up and solve equations for the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Prob. 22RECh. 5.II - Prob. 23RECh. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Prob. 25RECh. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - Use ratio and proportion to solve the following...Ch. 5.II - 30. In a move to provide additional sales for U.S....Ch. 5 - A(n) ______ is a mathematical statement describing...Ch. 5 - A mathematical statement expressing a relationship...Ch. 5 - Prob. 3CRCh. 5 - Prob. 4CRCh. 5 - The numerical value of the unknown that makes an...Ch. 5 - Prob. 6CRCh. 5 - 7. To transpose means to bring a term from one...Ch. 5 - Prob. 8CRCh. 5 - 9. To prove the solution of an equation, we...Ch. 5 - Prob. 10CRCh. 5 - Prob. 11CRCh. 5 - 12. A comparison of two quantities by division is...Ch. 5 - Prob. 13CRCh. 5 - Prob. 14CRCh. 5 - Prob. 1ATCh. 5 - Prob. 2ATCh. 5 - Solve the following equations for the unknown and...Ch. 5 - Prob. 4ATCh. 5 - Prob. 5ATCh. 5 - Prob. 6ATCh. 5 - Prob. 7ATCh. 5 - Prob. 8ATCh. 5 - Prob. 9ATCh. 5 - Prob. 10ATCh. 5 - For the following statements, underline the key...Ch. 5 - Prob. 12ATCh. 5 - Prob. 13ATCh. 5 - Prob. 14ATCh. 5 - Prob. 15ATCh. 5 - For the following statements, underline the key...Ch. 5 - Prob. 17ATCh. 5 - Prob. 18ATCh. 5 - Set up and solve equations for each of the...Ch. 5 - Set up and solve equations for each of the...Ch. 5 - Prob. 21ATCh. 5 - Set up and solve equations for each of the...Ch. 5 - Prob. 23ATCh. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Set up and solve equations for the following...Ch. 5 - Prob. 30ATCh. 5 - Use ratio and proportion to solve the following...Ch. 5 - Use ratio and proportion to solve the following...Ch. 5 - Use ratio and proportion to solve the following...Ch. 5 - 34. One special type of ratio is known as a rate....
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- The Mason group has a liability of £200,000 to be paid in 14 years' time. It wants to Redington immunise these liabilities with assets consisting of amount P in a bank and Q 18-year zero coupon bonds, with P and Q to be determined. Interest is compounded monthly at rate 8%. (a) Answer: What is the present value of the liability? Enter your answer correct to the nearest pound. (b) What is the duration of the liability? Enter your answer correct to 3 significant digits. Answer: (c) What is the convexity of the liability? Enter your answer correct to 3 significant digits. Answer: (d) Write down the two equations that P and Q need to satisfy for Redington immunisation to hold and solve these equations for P and Q. Enter the answers correct to the nearest pound. Answers: P= Q= (e) What is the convexity of the assets in this case? Enter your answer correct to 3 significant digits. Answer: (f) Is the convexity condition that is necessary for Redington immunisation satisfied in this case?…arrow_forwardDr Fogg is quoted the following market prices VT for T-year unit zero-coupon bonds as well as the fair forward rate V3 = 0.95 and V9 = 0.7 f3.5 = 4%. (a) Determine the spot rate $3. Enter your answer as a percentage correct to 3 significant digits. Answer: (b) Answer: (c) Answer: (d) Determine the spot rate s9. Enter your answer as a percentage correct to 3 significant digits. Find the fair forward rate f3,9. Enter your answer as a percentage correct to 3 significant digits. Dr Fogg wants to sign a forward contract to buy 20kg of tea in 5 years' time. The current price of tea is £2.7 per kg. Find the fair forward price of this contract. Enter your answer correct to the nearest penny. Answer:arrow_forward(c) Let A = -1 3 -4 12 3 3 -9 (i) Find bases for row(A), col(A) and N(A). (ii) Determine the rank and nullity of A, and verify that the Rank-Nullity Theorem holds for the above matrix A.arrow_forward
- Suppose that the price S(t) in year t of stocks of Bancroft & Sons is modelled by a stochastic process which has a risk-neutral distribution at time t = 3 given by £120 with probability 0.3, S(3): = £140 with probability 0.5, £160 with probability 0.2. Assume that interest is compounded continuously at nominal rate 2%. (a) Assuming no-arbitrage, determine the current price S(0) of Bancroft & Sons stock. Enter your answer correct to the nearest pound. Answer: (b) Determine the no-arbitrage price of a European put option on Bancroft & Sons stock with strike 150 and expiry 3 years. Enter your answer correct to the nearest pound. Answer:arrow_forwardA 2-year bond with face value £300,000 is redeemable at half-par and has semi-annual coupons paid at annual rate 4%. Suppose that interest is compounded quarterly at nominal rate 3%. (a) Answer: What is the amount of the first payment? (b) What is the amount of the last payment? Answer: (c) Determine the no-arbitrage price of the bond. Enter your answer correct to the nearest pound. Answer: (d) Determine the duration of the cash flow generated by the bond. Enter your answer correct to 3 significant digits. Answer:arrow_forwardTick all statements which are correct, but do not tick those that are incorrect. a. A forward contract gives you the right but not the obligation to buy a certain product at a specified time in the future for a fixed price. b. An American put option should always be exercised before its expiry time. C. The price of a put option and of a call option with the same expiration time and strike price can never be the same. d. If there is a sporting event with 3 different outcomes with corresponding odds equal to o₁ = 2,02 = 2, and 03 = opportunity for a suitable betting strategy. = 3, then there is an arbitrage e. If there is arbitrage, then a risk-neutral distribution exists.arrow_forward
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- Let H = {(a a12 a21 a22, | a1 + a2 = 0} . € R²x²: a11 + a22 (i) Show that H is a subspace of R2×2 (ii) Find a basis of H and determine dim H.arrow_forward2 5 A=1 2 -2 b=2 3 1 -1 3 (a) Calculate det(A). (b) Using (a), deduce that the system Ax = b where x = (x1, x2, x3) is consistent and determine x2 using Cramer's rule.arrow_forwardConsider the least squares problem Ax = b, where 12 -09-0 A 1 3 1 4 and b = (a) Write down the corresponding normal equations. (b) Determine the set of least squares solutions to the problem.arrow_forward
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