Problem Solving Approach to Mathematics for Elementary School Teachers
13th Edition
ISBN: 9780135184097
Author: BILLSTEIN
Publisher: PEARSON CO
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Textbook Question
Chapter 2.CR, Problem 4CR
Negate each of the following;
a. No women smoke
b.
c. Bach wrote only classical music
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Question 2
In this question, V = Q4 and
-
U = {(x, y, z, w) EV | x+y2w+ z = 0},
W = {(x, y, z, w) € V | x − 2y + w − z = 0},
Z = {(x, y, z, w) € V | xyzw = 0}.
(a) Determine which of U, W, Z are subspaces of V. Justify your answers.
(b) Show that UW is a subspace of V and determine its dimension.
(c) Is VU+W? Is V = UW? Justify your answers.
[10]
[7]
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Chapter 2 Solutions
Problem Solving Approach to Mathematics for Elementary School Teachers
Ch. 2.1 - Explain why commands and questions are not...Ch. 2.1 - Explain how to write the negation of a quantified...Ch. 2.1 - a. Describe under what conditions a disjunction is...Ch. 2.1 - In an email address line, a coma or a semicolon is...Ch. 2.1 - If a statement and its converse are both true,...Ch. 2.1 - Table 6 shows a situation used to motivate the...Ch. 2.1 - Is the inverse of an implications converse the...Ch. 2.1 - A student says that an implication can some time...Ch. 2.1 - A student says that it is impossible to determine...Ch. 2.1 - A student says that all poodles are dogs is true...
Ch. 2.1 - A student wants to know how to find the truth...Ch. 2.1 - Write an explanation for a seventh grader showing...Ch. 2.1 - Analyze the following argument that was presented...Ch. 2.1A - Determine which of the following are statements...Ch. 2.1A - Use quantifiers to make each of the following...Ch. 2.1A - Use quantifiers to make each of equation in...Ch. 2.1A - Write the negation of each of the following...Ch. 2.1A - Identify the following as true or false. a. For...Ch. 2.1A - Prob. 6ACh. 2.1A - a. Complete the following truth table, (1) (2) (3)...Ch. 2.1A - If q stands for This course is easy and r stands...Ch. 2.1A - Decide on the truth values of each of the...Ch. 2.1A - Write the negation of each statement in exercise...Ch. 2.1A - For each of the following, is the pair of...Ch. 2.1A - Prob. 12ACh. 2.1A - Write each of the following in symbolic form if p...Ch. 2.1A - For each of the following implications, write the...Ch. 2.1A - Complete the truth table below to determine...Ch. 2.1A - Write a statement logically equivalent to the...Ch. 2.1A - Investigate the validity of each of the following...Ch. 2.1A - For each of the following, form a conclusion that...Ch. 2.1A - Write the following in if-then form. a. Every...Ch. 2.1A - Use De Morgans Laws to write a negation of each of...Ch. 2.1B - Determine which of the following are statements...Ch. 2.1B - Use the quantifiers to make each of the following...Ch. 2.1B - Use the quantifiers to make each equation in...Ch. 2.1B - Write the negation of each of the following...Ch. 2.1B - Identity the following as true or false. a. For...Ch. 2.1B - a. If you know that p is true, what can you...Ch. 2.1B - Complete a truth table for (pq).Ch. 2.1B - If q stands for You said goodbye and r stands for...Ch. 2.1B - Decide on the truth value of each of the following...Ch. 2.1B - Write the negation of each statement in exercise...Ch. 2.1B - For each of the following, is the pair of...Ch. 2.1B - Use the Euler diagram to describe Megan as...Ch. 2.1B - Write each of the following in symbolic form if p...Ch. 2.1B - For each of the following implications, state the...Ch. 2.1B - Iris makes the true statement If it rains, then I...Ch. 2.1B - Investigate the validity of each of the following...Ch. 2.1B - For each of the following, form a conclusion that...Ch. 2.1B - Write each of the following in if-then form. a....Ch. 2.1B - Use De Morgans laws to write a negation of each of...Ch. 2.2 - Prob. 1MCCh. 2.2 - Prob. 2MCCh. 2.2 - Prob. 3MCCh. 2.2 - Explain why {} has as an element and also as a...Ch. 2.2 - Prob. 5MCCh. 2.2 - Explain the difference between a subset and a...Ch. 2.2 - Explain the difference between the symbols and ....Ch. 2.2 - Explain the difference between equivalent and...Ch. 2.2 - Suppose a penny, nickel, dime, and quarter are on...Ch. 2.2 - If a set has 255 proper subsets, how many elements...Ch. 2.2 - Explain why the word finite was used in the...Ch. 2.2 - Define less than or equal to in a way similar to...Ch. 2.2 - Prob. 13MCCh. 2.2 - Draw a Venn diagram depicting A. Shade A. What is...Ch. 2.2 - A set has elements in an arithmetic sequence...Ch. 2.2 - A set of 100 people on a tour include only men and...Ch. 2.2 - A student asks if A is a subset of B and B is a...Ch. 2.2 - A student states that given any two sets A and B,...Ch. 2.2 - Prob. 19MCCh. 2.2 - A students says that every time he adds one...Ch. 2.2 - Prob. 21MCCh. 2.2 - A students says that any set that uses 3 dots...Ch. 2.2 - A students says that n()=1, since it has one...Ch. 2.2 - Use the School Book Page on p.59 to tell how...Ch. 2.2 - Review Problems If p is false and q is true, find...Ch. 2.2 - Review Problems Find the truth value for each...Ch. 2.2 - Review Problems Complete the following truth...Ch. 2.2A - Write the following sets using the listing roster...Ch. 2.2A - Rewrite the following using mathematical symbols,...Ch. 2.2A - Which of the following pairs of sets can be placed...Ch. 2.2A - Prob. 4ACh. 2.2A - Prob. 5ACh. 2.2A - Which of the following represent equal sets?...Ch. 2.2A - Find the cardinal number of the each of the...Ch. 2.2A - If U is the set of all college students and A is...Ch. 2.2A - Suppose B is a proper subset of C. a. If n(C)=8,...Ch. 2.2A - Prob. 10ACh. 2.2A - Prob. 11ACh. 2.2A - Prob. 12ACh. 2.2A - Identify all the possible proper subset...Ch. 2.2A - Indicate which symbol, or , makes each of the...Ch. 2.2A - Indicate which symbol, or _, makes each of the...Ch. 2.2A - Assessment Answer each of the following. If your...Ch. 2.2A - Use the definition of less than to show each of...Ch. 2.2A - On a certain committee there are seven members,...Ch. 2.2A - Name two infinite sets that are equivalent but not...Ch. 2.2A - Write an argument to show that the set of even...Ch. 2.2A - Draw a Venn diagram showing the relationship...Ch. 2.2A - Draw a Venn diagram depicting the Beta club, the...Ch. 2.2A - If the set of officers of the Beta Club is...Ch. 2.2B - Prob. 1ACh. 2.2B - Prob. 2ACh. 2.2B - Which of the following pairs of sets can be placed...Ch. 2.2B - How many one-to-one correspondences exist between...Ch. 2.2B - Prob. 5ACh. 2.2B - Prob. 6ACh. 2.2B - Prob. 7ACh. 2.2B - Prob. 8ACh. 2.2B - Suppose AB. a. Explain why n(A) could equal 0. b....Ch. 2.2B - Prob. 10ACh. 2.2B - Prob. 11ACh. 2.2B - If a set has 16 subsets, how many elements are in...Ch. 2.2B - Identify all the possible proper subset...Ch. 2.2B - Indicate which symbol, or , makes each of the...Ch. 2.2B - Answer each of the following. If your answer is...Ch. 2.2B - Use the definition of lessthan to show each of the...Ch. 2.2B - How many ways are there to stack an ice-cream cone...Ch. 2.2B - Prob. 18ACh. 2.2B - Write an argument showing that the set of whole...Ch. 2.2B - Draw a Venn diagram showing the members of...Ch. 2.2B - In a state swim meet, if the set of swimmers in...Ch. 2.2B - Prob. 22ACh. 2.2B - Prob. 23ACh. 2.2B - Prob. 24ACh. 2.3 - Prob. 2MCCh. 2.3 - Prob. 3MCCh. 2.3 - Prob. 5MCCh. 2.3 - Prob. 6MCCh. 2.3 - Describe a real- life situation that can be...Ch. 2.3 - A student asks, If A={a,b,c} and B={b,c,d}, why...Ch. 2.3 - Prob. 9MCCh. 2.3 - A student argues that adding two sets A+B, and...Ch. 2.3 - Prob. 11MCCh. 2.3 - Hugo says that the definition of AB is the set of...Ch. 2.3 - Prob. 13MCCh. 2.3 - Describe the contrapositive of the contrapositive...Ch. 2.3 - Write a conclusion for each of the following...Ch. 2.3 - Prob. 16MCCh. 2.3 - Find the number of elements in the following sets:...Ch. 2.3 - Prob. 18MCCh. 2.3 - Prob. 19MCCh. 2.3 - Prob. 20MCCh. 2.3A - Prob. 1ACh. 2.3A - Prob. 2ACh. 2.3A - Prob. 3ACh. 2.3A - If BA find a simpler expression for each of the...Ch. 2.3A - Prob. 5ACh. 2.3A - Prob. 6ACh. 2.3A - For each of the following conditions, find AB. a....Ch. 2.3A - Prob. 8ACh. 2.3A - Prob. 9ACh. 2.3A - Prob. 10ACh. 2.3A - Prob. 11ACh. 2.3A - Prob. 12ACh. 2.3A - a. If A has three elements and B has two elements,...Ch. 2.3A - If n(A)=4, n(B)=5, and n(C)=6, what is the...Ch. 2.3A - Prob. 15ACh. 2.3A - Prob. 16ACh. 2.3A - Assessment Given that the universe is the set of...Ch. 2.3A - Prob. 18ACh. 2.3A - In a sorority with 40 members, 18 take...Ch. 2.3A - In Paulettes bicycle shop, 50 bicycle were...Ch. 2.3A - The Red Cross looks for three types of antigens in...Ch. 2.3A - John has applied for the registrars job at small...Ch. 2.3A - Three announcers each try to predict the winners...Ch. 2.3A - Prob. 24ACh. 2.3A - When the Titanic sank, the following data about...Ch. 2.3A - Two families, each having three children, are at a...Ch. 2.3A - Let A={x,y} and B={a,b,c}.Find each of the...Ch. 2.3A - For each of the following, the Cartesian product...Ch. 2.3B - Assessment If W={0,1,2,3,.......},...Ch. 2.3B - Prob. 2ACh. 2.3B - Prob. 3ACh. 2.3B - If XY, find a simpler expression for each of the...Ch. 2.3B - Prob. 5ACh. 2.3B - Prob. 6ACh. 2.3B - For each of the following conditions, find BA. a....Ch. 2.3B - Prob. 8ACh. 2.3B - Prob. 9ACh. 2.3B - Prob. 10ACh. 2.3B - In a police bulletin, it was reported that a...Ch. 2.3B - Assessment a. If n(AB)=23, n(AB)=9, and n(B)=12,...Ch. 2.3B - The equation AB=AB and a similar equation for AB...Ch. 2.3B - Prob. 14ACh. 2.3B - Fill in the Venn diagram with the appropriate...Ch. 2.3B - Prob. 16ACh. 2.3B - Prob. 17ACh. 2.3B - A pollster interviewed 600 university seniors who...Ch. 2.3B - In a survey of 1000 investors, it was determined...Ch. 2.3B - In a survey of 150 students, 90 were taking...Ch. 2.3B - Prob. 21ACh. 2.3B - A poll of 150 people determined that 130 had...Ch. 2.3B - Assessment At the end of a tour, several guides...Ch. 2.3B - Tell whether each of the following is true or...Ch. 2.3B - Prob. 25ACh. 2.CR - Write an example of a statement and an example of...Ch. 2.CR - Explain the difference between the following two...Ch. 2.CR - Which of the following are statements? a. 3+5=9 b....Ch. 2.CR - Negate each of the following; a. No women smoke b....Ch. 2.CR - Write the converse, inverse and contrapositive of...Ch. 2.CR - Use the truth table to show that pqqp,Ch. 2.CR - Construct truth tables for each of the following....Ch. 2.CR - Prob. 8CRCh. 2.CR - Prob. 9CRCh. 2.CR - Write each of the following in if-then format. a....Ch. 2.CR - Prob. 11CRCh. 2.CR - Prob. 12CRCh. 2.CR - Prob. 13CRCh. 2.CR - Prob. 14CRCh. 2.CR - Prob. 15CRCh. 2.CR - Prob. 16CRCh. 2.CR - a. If D={t,h,e} and E={e,n,d}, show one possible...Ch. 2.CR - Prob. 18CRCh. 2.CR - If AB, which of the following are always true?...Ch. 2.CR - Tell whether each of the following is true or...Ch. 2.CR - Prob. 22CRCh. 2.CR - Decide whether each of the following is always...Ch. 2.CR - Prob. 24CRCh. 2.CR - If n(A)=3, n(B)=4 and n(C)=2, find n((AB)C)Ch. 2.CR - Case Eastern Junior College awarded 26 varsity...Ch. 2.CR - According to a student survey, 16 students liked...Ch. 2.CR - Prob. 28CRCh. 2.CR - Heidi has a brown pair and grey pair of slacks; a...Ch. 2.CR - Prob. 30CRCh. 2.CR - Prob. 31CRCh. 2 - NOW TRY THIS a. Use truth tables to prove Theorem...Ch. 2 - NOW TRY THIS Build a truth table to determine when...Ch. 2 - Prob. 3NTCh. 2 - Prob. 4NTCh. 2 - Prob. 5NTCh. 2 - Prob. 6NT
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