A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
12th Edition
ISBN: 9780321987297
Author: Rick Billstein, Shlomo Libeskind, Johnny Lott
Publisher: PEARSON
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Chapter 12.4A, Problem 19A
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3. Suppose that A is 5 x 5 and rank(A)=4. Use this information to answer the following.
a. Give a geometric description of nullspace(A). Justify.
b. Is A invertible? Justify.
c. Give a geometric description of the span of the column vectors of A. What
space are the column vectors of A in? Justify.
d. What is determinant of A? Justify.
2. Consider the matrix:
A
||
1
1
-3
14
2 1 01
4 1
2
2
-26
1 -3
1 5]
a) What is rank(A)?
b) Is A invertible? Justify.
c) Find the nullspace(A). Justify.
d) Is the trivial solution the only solution to Ax=0? Justify.
e) What is the span of the column vectors of A? Justify.
E
5. Suppose that S={v € R²: v = [2x² - 3]}. Is S a subspace of R²? Prove or disprove
Chapter 12 Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
Ch. 12.1 - If quadrilateral ABCDEFGH, then complete the...Ch. 12.1 - Can you construct a triangle using the lengths...Ch. 12.1 - A triangle has two sides of length 10cm and 14cm....Ch. 12.1 - For the figure below, answer the following. a. If...Ch. 12.1 - In a circle with centre A and radius AB, let P be...Ch. 12.1 - Prob. 6MCCh. 12.1 - Prob. 7MCCh. 12.1 - Prob. 8MCCh. 12.1 - Prob. 9MCCh. 12.1 - Explain why the quadrilateral ABCD is a kite.
Ch. 12.1 - To draw the perpendicular to a line l through a...Ch. 12.1 - In the following drawing a compass is used to draw...Ch. 12.1 - Prob. 13MCCh. 12.1 - Prob. 14MCCh. 12.1 - Prob. 16MCCh. 12.1 - Prob. 17MCCh. 12.1 - Prob. 18MCCh. 12.1 - Prob. 19MCCh. 12.1 - Prob. 20MCCh. 12.1 - A student claims that all squares are congruent...Ch. 12.1 - Joel claims that the following triangles are...Ch. 12.1 - On a test, a student wrote the answer as ABCD...Ch. 12.1 - Prob. 24MCCh. 12.1 - Zara claims that in spite of the fact that every...Ch. 12.1 - Prob. 1NAEPCh. 12.1 - Which two figures are congruent? a. E and H b. F...Ch. 12.1A - If CATDOG, which of the following, if any, is...Ch. 12.1A - In TRI and ABC, TRAB, RIBC, and ITCA. Which angle...Ch. 12.1A - Find two congruent triangles in the following...Ch. 12.1A - A truss used in house construction to strengthen...Ch. 12.1A - Prob. 5ACh. 12.1A - Prob. 6ACh. 12.1A - Prob. 7ACh. 12.1A - Prob. 8ACh. 12.1A - Given three points in the plane, is it always...Ch. 12.1A - Prob. 10ACh. 12.1A - Prob. 11ACh. 12.1A - Prob. 12ACh. 12.1A - Prob. 14ACh. 12.1A - Prob. 15ACh. 12.1A - Prob. 16ACh. 12.1A - Prob. 18ACh. 12.1A - Prob. 19ACh. 12.1A - Draw a segment. Then use any instruments to...Ch. 12.1A - Prob. 21ACh. 12.1A - Prob. 22ACh. 12.1A - Given three points in the plane, is it always...Ch. 12.1B - Prob. 1ACh. 12.1B - Prob. 2ACh. 12.1B - Prob. 3ACh. 12.1B - Prob. 4ACh. 12.1B - Prove that if the convex quadrilateral ABCD has...Ch. 12.1B - Find the measure of C in the following figure.Ch. 12.1B - Prob. 7ACh. 12.1B - Prob. 8ACh. 12.1B - For each of the following, determine whether the...Ch. 12.1B - Prob. 10ACh. 12.1B - Prob. 11ACh. 12.1B - Prob. 13ACh. 12.1B - Prob. 14ACh. 12.1B - Let ABCD be a square with diagonals AC and BD...Ch. 12.1B - Prob. 19ACh. 12.1B - Prob. 20ACh. 12.1B - Prob. 21ACh. 12.2 - MATHEMATICAL CONNECTIONS a. If you know 4 parts...Ch. 12.2 - List all the methods you know to prove that two...Ch. 12.2 - Prob. 3MCCh. 12.2 - In making a quilt block out of congruence right...Ch. 12.2 - Prob. 5MCCh. 12.2 - Prob. 6MCCh. 12.2 - Prob. 7MCCh. 12.2 - Prob. 8MCCh. 12.2 - MATHEMATICAL CONNECTIONS The marked angles and a...Ch. 12.2 - Prob. 14MCCh. 12.2 - Prob. 15MCCh. 12.2 - MATHEMATICAL CONNECTIONS A student asks why...Ch. 12.2 - A student says that she knows that a parallelogram...Ch. 12.2 - Prob. 18MCCh. 12.2 - Prob. 19MCCh. 12.2 - In the following regular pentagon, use the...Ch. 12.2 - If possible, construct a triangle that has the...Ch. 12.2 - MATHEMATICAL CONNECTIONS Construct an equilateral...Ch. 12.2 - MATHEMATICAL CONNECTIONS For each of the following...Ch. 12.2A - Construct each of the following figures, if...Ch. 12.2A - ASSESSMENT For each of the conditions in exercise...Ch. 12.2A - ASSESSMENT For each of the following, determine...Ch. 12.2A - Prob. 4ACh. 12.2A - List congruent triangles, if any, for each of the...Ch. 12.2A - Prob. 6ACh. 12.2A - Suppose ABCDEF, find the following measures. a....Ch. 12.2A - Prob. 8ACh. 12.2A - Given ADEC and BDBC, Prove ABDEBC.Ch. 12.2A - Prob. 10ACh. 12.2A - In each of the following statements, identify the...Ch. 12.2A - Prob. 12ACh. 12.2A - ASSESSMENT Classify each of the following...Ch. 12.2A - Prob. 15ACh. 12.2A - Prob. 16ACh. 12.2A - The game of Triominoes has equilateral-triangular...Ch. 12.2A - ASSESSMENT In the rectangle ABCD shown, X and Y...Ch. 12.2A - Prob. 20ACh. 12.2A - Prob. 21ACh. 12.2A - Prob. 22ACh. 12.2A - ASSESSMENT What minimum information is sufficient...Ch. 12.2A - Prob. 25ACh. 12.2B - Prob. 1ACh. 12.2B - Prob. 3ACh. 12.2B - Prob. 6ACh. 12.2B - Prob. 7ACh. 12.2B - Prob. 8ACh. 12.2B - Prob. 9ACh. 12.2B - Prob. 10ACh. 12.2B - Prob. 11ACh. 12.2B - Prob. 12ACh. 12.2B - Prob. 14ACh. 12.2B - Prob. 15ACh. 12.2B - Prob. 16ACh. 12.2B - Prob. 17ACh. 12.2B - Prob. 18ACh. 12.2B - Prob. 20ACh. 12.2B - ASSESSMENT What minimum information sufficient to...Ch. 12.2B - Prob. 22ACh. 12.2B - Prob. 23ACh. 12.3 - Mathematical Connections Draw a line l and a point...Ch. 12.3 - In the figure below, AC=30. Explain why or why not...Ch. 12.3 - Prob. 3MCCh. 12.3 - a. Construct a circle O and draw two diameters....Ch. 12.3 - Mathematical Connections Place three dots, A,B and...Ch. 12.3 - Mathematical Connections Lines l and m intersect...Ch. 12.3 - Mathematical Connections Given an angle and a roll...Ch. 12.3 - Mathematical Connections If two pieces of tape of...Ch. 12.3 - Prob. 9MCCh. 12.3 - Prob. 10MCCh. 12.3 - Prob. 12MCCh. 12.3 - Prob. 13MCCh. 12.3 - Each member of the group should cut out a large...Ch. 12.3 - Prob. 15MCCh. 12.3 - MATHEMATICAL CONNECTIONS A student asked if a line...Ch. 12.3 - Prob. 17MCCh. 12.3 - MATHEMATICAL CONNECTIONS A student wants to know...Ch. 12.3 - Prob. 20MCCh. 12.3 - Use inductive reasoning to answer the following....Ch. 12.3 - Mathematical Connections In the following figure,...Ch. 12.3 - Mathematical Connections Draw ABC. Then construct...Ch. 12.3 - Mathematical Connections Given two right...Ch. 12.3 - Mathematical Connections Find the value of x.Ch. 12.3A - Prob. 2ACh. 12.3A - Prob. 3ACh. 12.3A - Prob. 4ACh. 12.3A - Prob. 5ACh. 12.3A - Prob. 6ACh. 12.3A - Prob. 7ACh. 12.3A - Prob. 8ACh. 12.3A - Prob. 10ACh. 12.3A - Prob. 11ACh. 12.3A - Prob. 12ACh. 12.3A - Prob. 13ACh. 12.3A - Prob. 14ACh. 12.3A - Describe how to construct the incircle of a...Ch. 12.3A - Prob. 16ACh. 12.3A - Prob. 17ACh. 12.3A - Prob. 18ACh. 12.3A - Use compass and straightedge to construct angles...Ch. 12.3A - Prob. 21ACh. 12.3A - Prob. 22ACh. 12.3A - Construct a circle. Then construct an equilateral...Ch. 12.3B - Prob. 3ACh. 12.3B - Mathematical Connections In the figure, OP is the...Ch. 12.3B - Prob. 5ACh. 12.3B - Assessment Construct an obtuse triangle and the...Ch. 12.3B - Prob. 7ACh. 12.3B - Prob. 8ACh. 12.3B - Prob. 9ACh. 12.3B - Prob. 10ACh. 12.3B - Prob. 11ACh. 12.3B - Prob. 13ACh. 12.3B - Prob. 14ACh. 12.3B - Prob. 15ACh. 12.3B - Prob. 16ACh. 12.3B - ASSESSMENT Explain why any rectangle can be...Ch. 12.3B - Prob. 18ACh. 12.3B - Prob. 19ACh. 12.3B - Prob. 20ACh. 12.3B - Prob. 21ACh. 12.3B - Given a circle, find an equilateral triangle for...Ch. 12.4 - Prob. 1MCCh. 12.4 - Write a description of what it takes for two...Ch. 12.4 - If two isosceles triangle have non-base angles of...Ch. 12.4 - If two right triangles have hypotenuses that are...Ch. 12.4 - Prob. 5MCCh. 12.4 - Prob. 6MCCh. 12.4 - Prob. 7MCCh. 12.4 - Prob. 8MCCh. 12.4 - Prob. 9MCCh. 12.4 - If two figures are similar but not congruent, how...Ch. 12.4 - How are the SSS and SAS similarity thoerems like...Ch. 12.4 - Prob. 12MCCh. 12.4 - Prob. 13MCCh. 12.4 - Prob. 14MCCh. 12.4 - Prob. 15MCCh. 12.4 - Prob. 16MCCh. 12.4 - Prob. 17MCCh. 12.4 - Prob. 18MCCh. 12.4 - Prob. 19MCCh. 12.4 - Prob. 20MCCh. 12.4 - A student asks whether there is an ASA similarity...Ch. 12.4 - Describe a minimal set of conditions that can be...Ch. 12.4 - The figure below shows two right angles. The...Ch. 12.4 - Prob. 2NAEPCh. 12.4A - Prob. 1ACh. 12.4A - Prob. 2ACh. 12.4A - Prob. 3ACh. 12.4A - Prob. 4ACh. 12.4A - Prob. 5ACh. 12.4A - Prob. 7ACh. 12.4A - Prob. 8ACh. 12.4A - Prob. 9ACh. 12.4A - Prob. 10ACh. 12.4A - Prob. 11ACh. 12.4A - A photocopy of a polygon was reduced by 80 and...Ch. 12.4A - Sketch two hexagons with corresponding sides...Ch. 12.4A - Prob. 15ACh. 12.4A - Prob. 16ACh. 12.4A - In the following figure, find the distance AB...Ch. 12.4A - Prob. 18ACh. 12.4A - Prob. 19ACh. 12.4A - a. Examine several examples of similar polygons...Ch. 12.4A - Prob. 21ACh. 12.4A - The midpoints M,N,P,Q of the sides of a...Ch. 12.4A - Prob. 23ACh. 12.4A - Prob. 24ACh. 12.4B - School pictures come in 8in.by10in., 5in.by7in....Ch. 12.4B - Prob. 2ACh. 12.4B - Prob. 4ACh. 12.4B - Prob. 5ACh. 12.4B - Prob. 9ACh. 12.4B - Prob. 12ACh. 12.4B - Prob. 13ACh. 12.4B - Prob. 14ACh. 12.4B - To find the height of a tree, a group of Girl...Ch. 12.4B - Prob. 17ACh. 12.4B - Prob. 18ACh. 12.4B - Prob. 19ACh. 12.4B - Prob. 20ACh. 12.4B - a. In the figure, ABCD is a trapezoid, M is the...Ch. 12.4B - ABCD is a convex quadrilateral and M,N,P,Q are the...Ch. 12.4B - Prob. 23ACh. 12.4B - Prob. 24ACh. 12.CR - Each of the following figures contains at least...Ch. 12.CR - Prob. 2CRCh. 12.CR - Prob. 3CRCh. 12.CR - Prob. 4CRCh. 12.CR - Prob. 5CRCh. 12.CR - Prob. 6CRCh. 12.CR - Prob. 7CRCh. 12.CR - Prob. 8CRCh. 12.CR - Prob. 9CRCh. 12.CR - Prob. 10CRCh. 12.CR - Prob. 11CRCh. 12.CR - Prob. 12CRCh. 12.CR - Prob. 13CRCh. 12.CR - Prob. 14CRCh. 12.CR - Prob. 15CRCh. 12.CR - Prob. 16CRCh. 12.CR - Determine the vertical height of playground slide...Ch. 12.CR - Prob. 18CRCh. 12.CR - Prob. 19CRCh. 12.CR - Prob. 20CRCh. 12.CR - Prob. 21CRCh. 12.CR - ABCD is a trapezoid with BCAD. Points M and N are...Ch. 12.CR - Prob. 23CRCh. 12 - Assume ABCDEF. a. List the congruent angles and...Ch. 12 - Prob. 2NTCh. 12 - Prob. 3NTCh. 12 - Prob. 4NTCh. 12 - Prob. 5NTCh. 12 - Prob. 6NTCh. 12 - Prob. 7NTCh. 12 - Prob. 8NTCh. 12 - Are all right triangles in which the hypotenuse is...
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- 6. Suppose that V1, V2 ER", show that span{v1, v2} is a subspace of Rn.arrow_forwardRa X 2) slots per pole per phase 3/31 180 Ko Sin (1) Kdl 1 sin (4) sin(3) Sin (30) اذا مرید شرح الكتب بس 0 بالفراغ 3) Cos (30) 0.866 4) Rotating 5) Synchronous speed, 120 Fo lasa! G s.1000-950 20:05 1000 Capper losses: 5kw Rotor input lookw 0.05 ined sove in peaper I need a detailed solution on paper please 6) 1 ۳/۱ وه اذا ميريد شرح الكتب فقط look DC 7) rotov Find the general solution of the following equations: +4y=tan2x 3 7357 Find the general solution of the following equations: - Qll y + y (³) = 0. 101arrow_forwardNC Current Students - North Ce X | NC Canvas Login Links - North ( X Final Exam Comprehensive x Cengage Learning x WASTAT - Final Exam - STAT → C webassign.net/web/Student/Assignment-Responses/submit?dep=36055360&tags=autosave#question3659890_9 Part (b) Draw a scatter plot of the ordered pairs. N Life Expectancy Life Expectancy 80 70 600 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth O Life Expectancy Part (c) 800 70 60 50 40 30 20 10 1950 1970 1990 W ALT 林 $ # 4 R J7 Year of 2010 Birth F6 4+ 80 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth Life Expectancy Ox 800 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth hp P.B. KA & 7 80 % 5 H A B F10 711 N M K 744 PRT SC ALT CTRLarrow_forward
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