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 8.5, Problem 14MC
Janis noticed that in the simultaneous equations
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55
5.5
A glass bottle manufacturing company has recorded data on the average
number of defects per 10,000 bottles due to stones (small pieces of rock
embedded in the bottle wall) and the number of weeks since the last furnace
overhaul. The data are shown below.
Defects per 10,000
Weeks
13.0
4
16.1
5
14.5
6
17.8
7
22.0
8
27.4
9
16.8
10
65.6
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Defects per 10,000
Weeks
34.2
11
12
49.2
13
66.2
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87.4
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15
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114.5
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a. Fit a straight-line regression model to the data and perform the standard
tests for model adequacy.
b. Suggest an appropriate transformation to eliminate the problems encoun-
tered in part a. Fit the transformed model and check for adequacy.
An article describes an experiment in which several types of boxes were compared with respect to compression strength (lb). The table below presents the results of a single-factor ANOVA experiment involving I = 4 types of boxes.
Type of Box
Compression Strength (lb)
Sample Mean Sample SD
1
655.5 788.3 734.3 721.4 679.1 699.4
713.00
46.55
2
3
789.2 772.5 786.9 686.1 732.1 774.8
737.1 639.0 696.3 671.7 717.2 727.1
756.93
40.34
4
535.1 628.7 542.4 559.0 586.9 520.0
698.07
562.02
37.20
39.87
ЛUSE SALT
Suppose that the compression strength observations on the fourth type of box had been 648.1, 741.7, 655.4, 672.0, 699.9, and 633.0 (obtained by adding 113 to each previous X4;). Assuming no change in the remaining observations, carry out an F test with α = 0.05.
State the appropriate hypotheses.
O Ho M₁ =μ₂ = μ3 = μ4
Ha at least two μ's are unequal
Ho: M₁ = μ2 #M3 #μ4
H₂:
all four μ's are equal
O Ho M₁ = M2 = μ3 = μ4
Ha all four μ's are unequal
#
=
O Ho: M1 M2 M3 & M4
Ha at least two μ's are…
Find the domain of each function.
f(x)
=
tan 2x
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Chapter 8 Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
Ch. 8.1 - Use the fact that each prime in the prime...Ch. 8.1 - Find the value of 3 on a calculator. Explain why...Ch. 8.1 - Is it true that a+b=a+b for all a and b? If not,...Ch. 8.1 - The number 227 can be written as an infinite...Ch. 8.1 - a. Use the fact that if a prime p appears in the...Ch. 8.1 - Without using a calculator, order the following....Ch. 8.1 - a. To prove that 2335 a student wrote the...Ch. 8.1 - The sequence 1,1.01,1.001,1.0001,... is an...Ch. 8.1 - Let each number of a group choose a number between...Ch. 8.1 - Prob. 11MC
Ch. 8.1 - Connecting Mathematics to the Classroom Jim asked,...Ch. 8.1 - Connecting Mathematics to the Classroom A student...Ch. 8.1 - Prob. 14MCCh. 8.1 - A student says that she saw online that the...Ch. 8.1 - Prob. 16MCCh. 8.1 - Jose says that the equation x=3 has no solution,...Ch. 8.1 - MATHEMATICAL CONNECTIONS A student wants to know...Ch. 8.1A - Write an irrational number whose digit are 2s and...Ch. 8.1A - Use the Pythagorean Theorem to find the value of...Ch. 8.1A - Arrange the following real numbers in order from...Ch. 8.1A - Determine which of the following if any represent...Ch. 8.1A - If possible, find the each of the following...Ch. 8.1A - Find the Approximate square root of each of the...Ch. 8.1A - Classify each of the following statements as true...Ch. 8.1A - Find the irrational numbers between each of the...Ch. 8.1A - Based on your answer in exercise 8, argue that...Ch. 8.1A - If R is the set of real number, Q is the set of...Ch. 8.1A - ASSESSMENT The letters in the following table...Ch. 8.1A - ASSESSMENT The letters in the following table...Ch. 8.1A - ASSESSMENT Determine for what real number values...Ch. 8.1A - ASSESSMENT Write each of the following roots in...Ch. 8.1A - ASSESSMENT Write each of the following in the...Ch. 8.1A - Prob. 16ACh. 8.1A - ASSESSMENT The expression 21016t approximates the...Ch. 8.1A - Prob. 18ACh. 8.1A - ASSESSMENT In each of the following, find all real...Ch. 8.1A - ASSESSMENT Write an equation in x not involving...Ch. 8.1A - Prob. 21ACh. 8.1A - ASSESSMENT Determine which of the following are...Ch. 8.1B - Prob. 1ACh. 8.1B - Prob. 2ACh. 8.1B - Prob. 3ACh. 8.1B - Prob. 4ACh. 8.1B - Prob. 5ACh. 8.1B - Prob. 6ACh. 8.1B - Prob. 7ACh. 8.1B - Prob. 8ACh. 8.1B - If R is the set of real numbers, Q is the set of...Ch. 8.1B - The letters in the table correspond to the sets...Ch. 8.1B - Prob. 12ACh. 8.1B - Prob. 13ACh. 8.1B - Prob. 14ACh. 8.1B - Prob. 15ACh. 8.1B - Prob. 17ACh. 8.1B - Prob. 18ACh. 8.1B - In each of the following, find all real numbers x...Ch. 8.1B - Prob. 20ACh. 8.2 - Student were asked to write an algebraic...Ch. 8.2 - a. Choose seven consecutive term in any arithmetic...Ch. 8.2 - A teacher instructed her class as follows: Take...Ch. 8.2 - A teacher instructed her class to take any number...Ch. 8.2 - Give an example of geometric sequence whose first...Ch. 8.2 - Prob. 6MCCh. 8.2 - Prob. 7MCCh. 8.2 - A student wonders if sets can ever be considered...Ch. 8.2 - A student thinks that if A and B are sets, then...Ch. 8.2 - A student wants to know how can she prove that a...Ch. 8.2 - Prob. 11MCCh. 8.2 - Prob. 12MCCh. 8.2 - Prob. 13MCCh. 8.2 - Prob. 14MCCh. 8.2 - Find all integers n such that n503n+1.Ch. 8.2 - Prob. 1NAEPCh. 8.2 - 2+n 5 3+n 6 4+n 7 5+n 8 What number does n...Ch. 8.2 - A. If c and d are different prime numbers less...Ch. 8.2A - Translate the following phrases into algebraic...Ch. 8.2A - Prob. 2ACh. 8.2A - In the tile pattern sequence of figures shown,...Ch. 8.2A - In the following descriptions, write an expression...Ch. 8.2A - In a college, there are P professors and S...Ch. 8.2A - Suppose a class has g girls and b boys, and there...Ch. 8.2A - Ryan is building matchstick sequences as shown....Ch. 8.2A - Prob. 8ACh. 8.2A - For a particular event, a student pays 5 per...Ch. 8.2A - Prob. 10ACh. 8.2A - In each of the following arithmetic sequences,...Ch. 8.2A - Prob. 12ACh. 8.2A - Find the first term and the difference in an...Ch. 8.2A - Prob. 14ACh. 8.2A - A ball is dropped from a height of 10 ft and...Ch. 8.2A - Jake bought contact lenses and was told to wear...Ch. 8.2A - In a Fibonacci-like sequence, the first term is 2,...Ch. 8.2B - Translate the following phrases into algebraic...Ch. 8.2B - Prob. 2ACh. 8.2B - Discover a possible tile pattern in the following...Ch. 8.2B - In the following descriptions, write an expression...Ch. 8.2B - Prob. 5ACh. 8.2B - Suppose there are c chairs and t tables in a...Ch. 8.2B - Prob. 7ACh. 8.2B - Prob. 8ACh. 8.2B - For a particular event, students pay d per ticket...Ch. 8.2B - Matt has twice as many as stickers as David. If...Ch. 8.2B - Prob. 11ACh. 8.2B - Prob. 12ACh. 8.2B - Prob. 13ACh. 8.2B - Prob. 14ACh. 8.2B - A ball is dropped from a height of 20 meters and...Ch. 8.2B - Consider the following arithmetic sequences....Ch. 8.3 - Students were asked to find three consecutive...Ch. 8.3 - Prob. 2MCCh. 8.3 - Prob. 3MCCh. 8.3 - Prob. 4MCCh. 8.3 - Create an equation with x on both sides of the...Ch. 8.3 - Prob. 6MCCh. 8.3 - Prob. 7MCCh. 8.3 - Prob. 8MCCh. 8.3 - Prob. 9MCCh. 8.3 - Prob. 10MCCh. 8.3 - Prob. 11MCCh. 8.3 - Prob. 12MCCh. 8.3 - Prob. 13MCCh. 8.3 - Prob. 14MCCh. 8.3 - Prob. 15MCCh. 8.3 - Write an algebraic equation relating the variables...Ch. 8.3 - a. Show that the sum of every three consecutive...Ch. 8.3 - Prob. 18MCCh. 8.3 - Prob. 19MCCh. 8.3 - Prob. 1NAEPCh. 8.3 - Prob. 2NAEPCh. 8.3A - Consider the balances: What is the value of each...Ch. 8.3A - Solve each of the following if x is a real number....Ch. 8.3A - Ryan is building a matchstick square sequences so...Ch. 8.3A - For a particular event, 812 tickets were sold for...Ch. 8.3A - An estate of 486,000 is left to three siblings....Ch. 8.3A - A 10 ft board is to be cut into three pieces, two...Ch. 8.3A - Prob. 7ACh. 8.3A - Miriam is 10 years older than Ricardo. Two years...Ch. 8.3A - In a college, 20 times as many undergraduate...Ch. 8.3A - A farmer has 1200 yd of fencing to enclose a...Ch. 8.3A - The sum of three consecutive terms in the...Ch. 8.3A - Prob. 12ACh. 8.3B - Consider the following balances: a. Which shape...Ch. 8.3B - Prob. 2ACh. 8.3B - Prob. 3ACh. 8.3B - Prob. 4ACh. 8.3B - Prob. 5ACh. 8.3B - Prob. 6ACh. 8.3B - Prob. 7ACh. 8.3B - Prob. 8ACh. 8.3B - Prob. 9ACh. 8.3B - Prob. 10ACh. 8.3B - Prob. 11ACh. 8.3B - Prob. 12ACh. 8.4 - Prob. 1MCCh. 8.4 - Prob. 2MCCh. 8.4 - If S is the set of students in Ms. Carmels class,...Ch. 8.4 - Answer the following about f(x)=2x, an exponential...Ch. 8.4 - Prob. 6MCCh. 8.4 - Prob. 9MCCh. 8.4 - Prob. 10MCCh. 8.4 - Prob. 11MCCh. 8.4 - Prob. 12MCCh. 8.4 - Prob. 13MCCh. 8.4 - Prob. 16MCCh. 8.4 - Prob. 17MCCh. 8.4 - Prob. 18MCCh. 8.4 - Prob. 19MCCh. 8.4 - Prob. 20MCCh. 8.4 - Prob. 21MCCh. 8.4 - Prob. 22MCCh. 8.4 - Prob. 23MCCh. 8.4 - Prob. 24MCCh. 8.4 - Prob. 25MCCh. 8.4 - Prob. 1NAEPCh. 8.4 - Prob. 2NAEPCh. 8.4 - Prob. 3NAEPCh. 8.4A - Prob. 1ACh. 8.4A - Which of the following are function from the set...Ch. 8.4A - a. Draw an arrow diagram of a function with domain...Ch. 8.4A - Suppose f(x)=2x+1 and the domain {0,1,2,3,4}....Ch. 8.4A - Prob. 5ACh. 8.4A - a. Make an arrow diagram for each of the...Ch. 8.4A - The dosage of a certain drug is related to the...Ch. 8.4A - For each of the following, guess what might be...Ch. 8.4A - Quick-Talk advertises monthly cellualr...Ch. 8.4A - For each of the following sequenceseither...Ch. 8.4A - Consider the following two function machines. Find...Ch. 8.4A - In problem 11, find the all inputs for which the...Ch. 8.4A - a. Repeat exercise 11 when the bottom machine...Ch. 8.4A - Consider the function f(x)=x+b, where b is a...Ch. 8.4A - Let t(n) represent the nth term of a sequence for...Ch. 8.4A - Prob. 16ACh. 8.4A - Consider a function machine that accepts inputs as...Ch. 8.4A - The following graph shows the relationship between...Ch. 8.4A - A ball is shot out of a cannon at ground level....Ch. 8.4A - Prob. 20ACh. 8.4A - Prob. 21ACh. 8.4A - Which of the following equations or inequalities...Ch. 8.4A - Which of the following are graphs of fucntions and...Ch. 8.4A - Prob. 24ACh. 8.4A - Prob. 25ACh. 8.4A - Prob. 26ACh. 8.4B - Prob. 1ACh. 8.4B - Prob. 2ACh. 8.4B - Prob. 4ACh. 8.4B - Prob. 5ACh. 8.4B - Prob. 6ACh. 8.4B - Prob. 7ACh. 8.4B - Prob. 8ACh. 8.4B - Prob. 9ACh. 8.4B - Prob. 10ACh. 8.4B - Prob. 11ACh. 8.4B - In problem 11, find the all inputs for which the...Ch. 8.4B - Prob. 13ACh. 8.4B - Prob. 14ACh. 8.4B - Prob. 15ACh. 8.4B - Prob. 16ACh. 8.4B - Prob. 17ACh. 8.4B - Prob. 18ACh. 8.4B - Prob. 19ACh. 8.4B - Prob. 20ACh. 8.4B - Assume the pattern continues for each of the...Ch. 8.4B - Prob. 22ACh. 8.4B - Prob. 23ACh. 8.4B - Prob. 24ACh. 8.4B - Prob. 25ACh. 8.4B - Prob. 26ACh. 8.4B - Prob. 27ACh. 8.5 - In this chapter, an arithmetic sequence was...Ch. 8.5 - Prob. 2MCCh. 8.5 - Prob. 3MCCh. 8.5 - Prob. 4MCCh. 8.5 - Prob. 5MCCh. 8.5 - Prob. 6MCCh. 8.5 - Prob. 7MCCh. 8.5 - Prob. 8MCCh. 8.5 - A student would like to know why it is impossible...Ch. 8.5 - Prob. 12MCCh. 8.5 - Prob. 13MCCh. 8.5 - Janis noticed that in the simultaneous equations...Ch. 8.5 - Prob. 15MCCh. 8.5 - Prob. 16MCCh. 8.5 - Prob. 17MCCh. 8.5 - Prob. 18MCCh. 8.5 - Prob. 19MCCh. 8.5 - Prob. 20MCCh. 8.5 - Prob. 1NAEPCh. 8.5 - Prob. 2NAEPCh. 8.5A - The graph of y=mx is given in the following...Ch. 8.5A - Prob. 2ACh. 8.5A - Find the x-intercept and y-intercept for the...Ch. 8.5A - In the following figure, part i shows a dual-scale...Ch. 8.5A - Write each of the following equations in...Ch. 8.5A - For each of the following, write the equation of...Ch. 8.5A - Find the coordinates of two other collinear points...Ch. 8.5A - Prob. 8ACh. 8.5A - Prob. 9ACh. 8.5A - Find the equation for each of the following lines....Ch. 8.5A - For each of the following, find the slope, if...Ch. 8.5A - Write the equation of each line in exercise 11....Ch. 8.5A - Prob. 13ACh. 8.5A - The lines AB and BC shown in the figure are graph...Ch. 8.5A - What do the graphs of the following equations have...Ch. 8.5A - Suppose a car is travelling at constant speed of...Ch. 8.5A - Solve each of the following systems, if possible....Ch. 8.5A - The owner of a 5000-gal oil truck loads the truck...Ch. 8.5A - Josephines bank contains 27 coins. If all the...Ch. 8.5B - Prob. 2ACh. 8.5B - ASSESSMENT 8-4B Find the x-intercept and...Ch. 8.5B - Prob. 4ACh. 8.5B - Prob. 5ACh. 8.5B - Prob. 6ACh. 8.5B - ASSESSMENT 8-4B Find the coordinates of two other...Ch. 8.5B - Prob. 8ACh. 8.5B - Prob. 9ACh. 8.5B - ASSESSMENT 8-4B Find the equation for each of the...Ch. 8.5B - ASSESSMENT 8-4B For each of the following, find...Ch. 8.5B - ASSESSMENT 8-4B Write the equation of each line in...Ch. 8.5B - Prob. 13ACh. 8.5B - Prob. 14ACh. 8.5B - Prob. 15ACh. 8.5B - Prob. 16ACh. 8.5B - Solve each of the following systems, if possible....Ch. 8.CR - Chapter 7 Review Classify each of the following as...Ch. 8.CR - Prob. 2CRCh. 8.CR - Chapter 7 Review Answer each of the following and...Ch. 8.CR - Prob. 4CRCh. 8.CR - Approximate 23 to two decimal places by using the...Ch. 8.CR - Each of the following is a geometric sequence....Ch. 8.CR - Prob. 7CRCh. 8.CR - Prob. 8CRCh. 8.CR - There are 13 times as many students as professors...Ch. 8.CR - Prob. 10CRCh. 8.CR - Write an equation to find the number of feet given...Ch. 8.CR - The sum of n whole numbers is S. If each number is...Ch. 8.CR - I am thinking a whole number. If I divide it by...Ch. 8.CR - a. Think of a number. Add 17. Double the result....Ch. 8.CR - Find all the values of x that satisfy the...Ch. 8.CR - Mike has 3 times as many baseball cards as Jordan,...Ch. 8.CR - Jeannie has 10 books overdue at the library. She...Ch. 8.CR - Three children deliver all the newspapers in a...Ch. 8.CR - Which of the following sets of ordered pairs are...Ch. 8.CR - Prob. 20CRCh. 8.CR - Prob. 21CRCh. 8.CR - Prob. 22CRCh. 8.CR - Prob. 23CRCh. 8.CR - Prob. 24CRCh. 8.CR - Prob. 25CRCh. 8.CR - Graph each of the following equations: a. y=-2x+5...Ch. 8.CR - Prob. 27CRCh. 8.CR - Prob. 28CRCh. 8.CR - Prob. 29CRCh. 8 - Prob. 1NTCh. 8 - Prob. 2NTCh. 8 - Prob. 4NTCh. 8 - Prob. 5NTCh. 8 - Prob. 6NTCh. 8 - NOW TRY THIS Solve the Newspaper Delivery problem...Ch. 8 - NOW TRY THIS Determine which of the following are...Ch. 8 - Prob. 9NTCh. 8 - Prob. 10NTCh. 8 - Prob. 11NTCh. 8 - NOW TRY THIS a. Use the slope formula to find the...Ch. 8 - Prob. 13NT
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