Math 115 Spring 2014
Written Homework 11
Due Wednesday, May 7
1. Sketch the graph of the following through 3 full periods/cycles.
For the following questions, remember the base graph of y = tan x
(a)
f (x) := tan(x)
Recall from Exam 1, y = f (x) is a reec
A 28% trade discount on a DVD recorder represents a discount of $136.7 from the
suggested retail price.
What is the net price to the buyer? (Round your answer to the nearest cent.)
Net price
$ 351.51
Chicken Little Farms gives convenience stores a trade d
Solve the following equation.
3y 4 = 3(y + 6) 2(y + 3)
y=
8
Solve the following pairs of equations. (Negative values should be indicated by a
minus sign.)
y 3x = 11
5x + 30 = 4y
x = -2
y=5
Solve the following pairs of equations to three-figure accuracy. (
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A $30,000 loan at 12% compounded quarterly is to be repaid by equal quarterly
payments over a seven-year term.
a.
What will be the principal component of the sixth paymen
An annuity providing a rate of return of 4.8% compounded monthly was purchased
for $48,000. The annuity pays $400 at the end of each month. How much of
Payment 37 will be interest? (Round your answer to 2 decimal places.)
Interest $
159.85 .01
Explanation
What amount three years ago is equivalent to $5900 on a date 3.5 years from now if
money earns 4% compounded semiannually during the intervening time? (Round
your answer to the nearest cent.)
Amount
$
4,560.89
The population for the Region of Waterloo at
Evaluate the following expression to six-figure accuracy.
6.80169
Use the following formula; Vf = Vi(1 + c1)(1 + c2)(1 + c3) to determine c2 if Vf =
$577.50, Vi = $460.00, c1 = 0.21, and c3 = 0.07. (Negative values should be
indicated by a minus sign. Rou
A $100,000, 93-day commercial paper certificate issued by Bell Canada Enterprises
was sold on its issue date for $98,350.
What annual rate of return (to the nearest 0.001%) will it yield to the buyer? (Do not
round your intermediate calculations. Round yo
Payments of $2700 due 18 months ago and $7600 due in three years are to be
replaced by an equivalent stream of payments consisting of $3000 today and two
equal payments due two and four years from now. If money can earn 11.75%
compounded semiannually, wha
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The interest rate for the first three years of an $82,000 mortgage is 7.4%
compounded semiannually. Monthly payments are based on a 20-year amortization.
Suppose a $3000 prepayment is made a
A payment of $500 on an invoice for $899 reduced the balance owed to $378.54.
What cash discount rate was allowed on the $500 payment? (Round your answer
to two decimal places.)
%
Cash discount rate
3.93
Explanation:
Amount credited = $899 $378.54 = $520.
Three payments are scheduled as follows: $1,200 is due today, $940 is due in five
months, and $1,530 is due in eight months. The three payments are to be replaced
by a single equivalent payment due ten months from now.
What should the payment be if money
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Givens, Hong, and Partners obtained a $7700 term loan at 9.2% compounded
annually for new boardroom furniture. Prepare a complete amortization schedule in
which the loan
A credit union's Rate-Climber GIC pays rates of 2%, 5%, and 9% compounded
semiannually in successive years of a three-year term. How much interest will be
earned in the second year, if $16,000 is invested in this GIC? (Do not round
intermediate calculatio
Math 115 Spring 2014
Written Homework 10-SOLUTIONS
Due Friday, April 25
1. Use the following graph of y = g(x) to answer the questions below (this is NOT the
graph of a rational function):
(a) State the domain and range of g in interval notation.
Solution
Math 115 Spring 2014
Written Homework 2
Due Monday, February 10
Instructions: Write complete solutions on separate paper (not spiral bound). If multiple
pieces of paper are used, they must be stapled with your name and lecture written on each
page. In gen
Math 115 Spring 2014
Written Homework 1
Due Monday, February 3
Instructions: Write complete solutions on separate paper (not spiral bound). If multiple
pieces of paper are used, they must be stapled with your name and lecture written on each
page. In gene
Math 115 Spring 2014
Written Homework 6-SOLUTIONS
Due Friday, March 14
Instructions: Write complete solutions on separate paper (not spiral bound). If
multiple pieces of paper are used, THEY MUST BE STAPLED with your name and
lecture written on each page.
Math 115 Spring 2014
Written Homework 8-SOLUTIONS
Due Friday, April 11
Instructions: Write complete solutions on separate paper (not spiral bound).
If multiple pieces of paper are used, THEY MUST BE STAPLED with your
name and lecture written on each page.
Math 115 Spring 2014
Written Homework 5-SOLUTIONS
Due Friday, March 7
Instructions: Write complete solutions on separate paper (not spiral bound).
If multiple pieces of paper are used, THEY MUST BE STAPLED with your
name and lecture written on each page.
Math 115 Spring 2014
Written Homework 4
Due Friday, February 28
Instructions: Write complete solutions on separate paper (not spiral bound). If
multiple pieces of paper are used, THEY MUST BE STAPLED with your name
and lecture written on each page. Please
Math 115 Spring 2014
Written Homework 7-SOLUTIONS
Due Wednesday, April 2
Instructions: Write complete solutions on separate paper (not spiral bound).
If multiple pieces of paper are used, THEY MUST BE STAPLED with your
name and lecture written on each pag
Math 115 Spring 2014
Written Homework 9
Due Friday, April 18
Instructions: Write complete solutions on separate paper (not spiral bound).
If multiple pieces of paper are used, THEY MUST BE STAPLED with your
name and lecture written on each page. Please re
Math 115 Spring 2014
Written Homework 3
Due Wednesday, February 19
Instructions: Write complete solutions on separate paper (not spiral bound). If multiple
pieces of paper are used, they must be stapled with your name and lecture written on each
page. In
A loan of $3,300 at 8 3/4% simple interest was made on March 23.
On what date was it repaid if the interest cost was $138.02? (Do not round
intermediate calculations. Round your answer UP to the next whole day.)
September
14
Marta borrowed $1,720 from Jas