A Problem Solving Approach to Mathematics for Elementary School Teachers, Books a la Carte Edition plus NEW MyLab Math with Pearson eText - Access Card Package (12th Edition)
12th Edition
ISBN: 9780133865479
Author: Rick Billstein, Shlomo Libeskind, Johnny Lott
Publisher: PEARSON
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Chapter 5.2, Problem 4MC
To determine
To prove:
The expression
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A cable television company estimates that with x thousand subscribers, its monthly revenue and cost (in thousands of dollars) are given by the following equations.
R(x) = 45x - 0.24x2 C(x) = 257 + 13x
Compare the interest earned from #1 (where simple interest was used) to #5 (where compound interest was used). The principal, annual interest rate, and time were all the same; the only difference was that for #5, interest was compounded quarterly. Does the difference in interest earned make sense? Select one of the following statements. a. No, because more money should have been earned through simple interest than compound interest. b. Yes, because more money was earned through simple interest. For simple interest you earn interest on interest, not just on the amount of principal. c. No, because more money was earned through simple interest. For simple interest you earn interest on interest, not just on the amount of principal. d. Yes, because more money was earned when compounded quarterly. For compound interest you earn interest on interest, not just on the amount of principal.
Reduce the matrix
to reduced row-echelon form.
[3 2
-2-191
A = 3 -2 0 5
+
2 1 -2 -14
17
1
0
0
3
0
1
0
0
0
4
Chapter 5 Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers, Books a la Carte Edition plus NEW MyLab Math with Pearson eText - Access Card Package (12th Edition)
Ch. 5.1 - A turnpike driver had car trouble. He knew that he...Ch. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - Prob. 5MCCh. 5.1 - Prob. 6MCCh. 5.1 - Describe a realistic word problem that models...Ch. 5.1 - Prob. 8MCCh. 5.1 - Prob. 9MCCh. 5.1 - Investigate how tides are measured and design an...
Ch. 5.1 - A fourth-grade student devised the following...Ch. 5.1 - Prob. 14MCCh. 5.1 - MATHEMATICAL CONNECTIONS A student had the...Ch. 5.1 - Prob. 16MCCh. 5.1 - Prob. 17MCCh. 5.1 - Prob. 1NAEPCh. 5.1 - Prob. 2NAEPCh. 5.1A - Find the additive inverse of each of the following...Ch. 5.1A - Simplify each of the following expressions. a. (2)...Ch. 5.1A - Evaluate each of the following expressions. a. |5|...Ch. 5.1A - Demonstrate each of the following additions using...Ch. 5.1A - Demonstrate each of the additions in Exercise 4...Ch. 5.1A - Use the absolute value definition of addition to...Ch. 5.1A - Prob. 7ACh. 5.1A - Prob. 8ACh. 5.1A - Prob. 9ACh. 5.1A - Prob. 10ACh. 5.1A - Prob. 11ACh. 5.1A - Prob. 12ACh. 5.1A - Prob. 13ACh. 5.1A - Compute each of following expression. a. 2+(310)...Ch. 5.1A - Prob. 15ACh. 5.1A - Simplify each of the following expressions as much...Ch. 5.1A - For which integers a, b and c does ab+c=a(bc)?...Ch. 5.1A - Prob. 18ACh. 5.1A - Place the integers 4,3,2,0,1,2,3,4 in the grid to...Ch. 5.1A - Let y=x1. Find the value of y in parts a-d when x...Ch. 5.1A - Determine the number of terms in the arithmetic...Ch. 5.1A - Prob. 22ACh. 5.1A - Find the sum of the terms in the following...Ch. 5.1A - How could you explain the time change from the...Ch. 5.1A - Prob. 25ACh. 5.1A - Prob. 26ACh. 5.1A - Find all integer x, if there are any, such that...Ch. 5.1A - In each of the following equations, find all...Ch. 5.1A - An arithmetic sequence may have a positive or...Ch. 5.1A - Prob. 30ACh. 5.1A - Solve the following equations. a. x+7=3 b. 10+x=7...Ch. 5.1A - Prob. 32ACh. 5.1B - ASSESSMENT Find the additive inverse of each of...Ch. 5.1B - ASSESSMENT Simplify each of the following...Ch. 5.1B - ASSESSMENT Evaluate each of the following...Ch. 5.1B - Prob. 5ACh. 5.1B - Prob. 6ACh. 5.1B - Prob. 7ACh. 5.1B - Prob. 8ACh. 5.1B - Prob. 9ACh. 5.1B - Prob. 10ACh. 5.1B - Prob. 11ACh. 5.1B - Prob. 12ACh. 5.1B - Prob. 13ACh. 5.1B - ASSESSMENT Compute each of the following. a....Ch. 5.1B - Prob. 15ACh. 5.1B - ASSESSMENT Simplify each of the following...Ch. 5.1B - Prob. 17ACh. 5.1B - Prob. 18ACh. 5.1B - Prob. 19ACh. 5.1B - ASSESSMENT Let y=3x2. Find the value of y in parts...Ch. 5.1B - Prob. 21ACh. 5.1B - Prob. 22ACh. 5.1B - Prob. 23ACh. 5.1B - Prob. 24ACh. 5.1B - Prob. 25ACh. 5.1B - ASSESSMENT Find all integers x, if there are any,...Ch. 5.1B - ASSESSMENT Let y=|x5|. Find the value of y in...Ch. 5.1B - Prob. 28ACh. 5.1B - ASSESSMENT An arithmetic sequence may have a...Ch. 5.1B - Prob. 30ACh. 5.1B - Prob. 31ACh. 5.1B - Prob. 32ACh. 5.2 - Explain whether (xy)(x+y) can be multiplied by...Ch. 5.2 - We use the equation (a+b)2=a2+2ab+b2 to find a...Ch. 5.2 - Consider the argument to show that (a)(b)=(ab) for...Ch. 5.2 - Prob. 4MCCh. 5.2 - Explain how to find the number of integers between...Ch. 5.2 - Prob. 6MCCh. 5.2 - Prob. 7MCCh. 5.2 - Prob. 8MCCh. 5.2 - Prob. 9MCCh. 5.2 - Prob. 10MCCh. 5.2 - Prob. 11MCCh. 5.2 - A seventh-grade student does not believe 52.The...Ch. 5.2 - A student computes 82(3) by writing 10(3)=30. How...Ch. 5.2 - Prob. 16MCCh. 5.2 - Mariyana felt that using absolute values with...Ch. 5.2 - Prob. 18MCCh. 5.2 - Prob. 19MCCh. 5.2 - Prob. 20MCCh. 5.2 - Prob. 21MCCh. 5.2 - Prob. 22MCCh. 5.2 - Prob. 1NAEPCh. 5.2 - Prob. 2NAEPCh. 5.2A - Use patterns to show that (1)(1)=1Ch. 5.2A - Prob. 2ACh. 5.2A - Prob. 3ACh. 5.2A - Prob. 4ACh. 5.2A - The number of students eating in the school...Ch. 5.2A - Use the definition of division to find each...Ch. 5.2A - Evaluate each of the following expressions, if...Ch. 5.2A - Evaluate each of the following products and then,...Ch. 5.2A - In each of the following, x and y are integers;y0....Ch. 5.2A - In a lab, the temperature of various chemical...Ch. 5.2A - The farmland acreage lost to family dwellings over...Ch. 5.2A - Illustrate the distributive property of...Ch. 5.2A - Compute each of the following. a. (2)3 b. (2)4 c....Ch. 5.2A - If x is an integer and x0, which of the following...Ch. 5.2A - Find all integer values of x for which the...Ch. 5.2A - Prob. 16ACh. 5.2A - Identify the property of integers being...Ch. 5.2A - Prob. 18ACh. 5.2A - Multiply each of the following and combine terms...Ch. 5.2A - Find all integers x if any each of the following....Ch. 5.2A - Use the difference-of-squares formula to simplify...Ch. 5.2A - Factor each of the following expressions...Ch. 5.2A - Prob. 23ACh. 5.2A - Prob. 24ACh. 5.2A - Find the missing terms in the following arithmetic...Ch. 5.2A - A hot air balloon descends at the rate of...Ch. 5.2A - Prob. 27ACh. 5.2B - Use patterns to show that (2)(2)=4.Ch. 5.2B - Prob. 2ACh. 5.2B - Prob. 3ACh. 5.2B - In each of the following charged-field models, the...Ch. 5.2B - Prob. 5ACh. 5.2B - Prob. 6ACh. 5.2B - Prob. 7ACh. 5.2B - Prob. 8ACh. 5.2B - Prob. 9ACh. 5.2B - Prob. 10ACh. 5.2B - Prob. 11ACh. 5.2B - Prob. 12ACh. 5.2B - Compute each of the following. a. 10312 b. 10(312)...Ch. 5.2B - Prob. 14ACh. 5.2B - Identify the property of integers being...Ch. 5.2B - Prob. 16ACh. 5.2B - Multiply each of the following and combine terms...Ch. 5.2B - Find all integers x if any that make the...Ch. 5.2B - Use the difference of squares formula to simplify...Ch. 5.2B - Factor each of the following expressions...Ch. 5.2B - Prob. 21ACh. 5.2B - In each of the following, find the next two terms....Ch. 5.2B - Prob. 23ACh. 5.2B - Prob. 24ACh. 5.2B - Prob. 25ACh. 5.2B - Prob. 26ACh. 5.2B - Prob. 27ACh. 5.CR - Find the additive inverse of each of the...Ch. 5.CR - Prob. 2CRCh. 5.CR - For each of the following, find all possible...Ch. 5.CR - Prob. 4CRCh. 5.CR - Prob. 5CRCh. 5.CR - Simplify each of the following expressions. a. 1x...Ch. 5.CR - Prob. 7CRCh. 5.CR - Prob. 8CRCh. 5.CR - Prob. 9CRCh. 5.CR - Prob. 10CRCh. 5.CR - Prob. 11CRCh. 5.CR - In each part of exercise 11, if a sequence is...Ch. 5.CR - Prob. 13CRCh. 5.CR - Prob. 14CRCh. 5.CR - Prob. 15CRCh. 5.CR - Prob. 16CRCh. 5.CR - Prob. 17CRCh. 5.CR - Prob. 18CRCh. 5.CR - Prob. 19CRCh. 5.CR - Prob. 20CRCh. 5.CR - Prob. 21CRCh. 5.CR - Prob. 22CRCh. 5.CR - Prob. 23CRCh. 5.CR - The drawing below depicts an elevator. Explain...Ch. 5.CR - Prob. 25CRCh. 5.CR - Prob. 26CRCh. 5.CR - Prob. 27CRCh. 5.CR - Prob. 28CRCh. 5.CR - Prob. 29CRCh. 5.CR - Prob. 30CRCh. 5 - Now Try this 1 Explain whether the sum of two...Ch. 5 - Prob. 2NTCh. 5 - Now Try this 2 Model the subtraction 43 on a...Ch. 5 - Prob. 4NT
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