A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
13th Edition
ISBN: 9780135183885
Author: Rick Billstein, Shlomo Libeskind, Johnny Lott, Barbara Boschmans
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8.3A, Problem 9A
Quick-Talk advertises monthly cellualr phoneservice for
a. Make one graph showing the cost per minute as a function of number of minutes and the other showing the total cost for calls as a function of the number of minutes up to
b. If you connect the points in the secong graph in part (a), what kind of assumptions needs to be made about the way the telephone company charges phone calls?
c. Why does the total cost for calls consist of two line segments? Why is one part steeper than the other?
d. The function representing the total cost for calls as a function of number of minutes talked can be represented by two equations. Write these equations.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Draw the asymptotes (if there are any). Then plot two points on each piece of the graph.
Cancel
Done
RESET
Suppose that R(x) is a polynomial of degree 7 whose coefficients are real numbers.
Also, suppose that R(x) has the following zeros.
-1-4i, -3i, 5+i
Answer the following.
(a) Find another zero of R(x).
☐
| | | | |│
| | |
-1
བ
¢
Live
Adjust
Filters
Crop
Suppose that R (x) is a polynomial of degree 7 whose coefficients are real numbers.
Also, suppose that R (x) has the following zeros.
-1-4i, -3i, 5+i
Answer the following.
(c) What is the maximum number of nonreal zeros that R (x) can have?
☐
Chapter 8 Solutions
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Ch. 8.1 - Student were asked to write an algebraic...Ch. 8.1 - a. Choose seven consecutive term in any arithmetic...Ch. 8.1 - A teacher instructed her class as follows: Take...Ch. 8.1 - A teacher instructed her class to take any number...Ch. 8.1 - Give an example of geometric sequence whose first...Ch. 8.1 - Joel says that there is no reason to have more...Ch. 8.1 - A student wonders if sets can ever be considered...Ch. 8.1 - A student wants to know how can she prove that a...Ch. 8.1 - Prob. 9MCCh. 8.1 - Prob. 11MC
Ch. 8.1 - Prob. 1NAEPCh. 8.1 - 2+n 5 3+n 6 4+n 7 5+n 8 What number does n...Ch. 8.1 - Prob. 3NAEPCh. 8.1 - Melissa saves money for six weeks to buy a...Ch. 8.1A - Translate the following phrases into algebraic...Ch. 8.1A - Prob. 2ACh. 8.1A - In the tile pattern for an arithmetic sequence of...Ch. 8.1A - Prob. 4ACh. 8.1A - In a college, there are P professors and S...Ch. 8.1A - Suppose a class has g girls and b boys, and there...Ch. 8.1A - Ryan is building matchstick sequences as shown....Ch. 8.1A - Prob. 8ACh. 8.1A - For a particular event, a student pays 5 per...Ch. 8.1A - Prob. 10ACh. 8.1A - Prob. 11ACh. 8.1A - Prob. 12ACh. 8.1A - Find the first term and the difference in an...Ch. 8.1A - Prob. 14ACh. 8.1A - A ball is dropped from a height of 10 ft and...Ch. 8.1A - Jake bought contact lenses and was told to wear...Ch. 8.1A - Construct a Fibonacci-like sequence that is also...Ch. 8.1A - Prob. 18ACh. 8.1B - Translate the following phrases into algebraic...Ch. 8.1B - Prob. 2ACh. 8.1B - Discover a possible tile pattern in the following...Ch. 8.1B - In the following descriptions, write an expression...Ch. 8.1B - Prob. 5ACh. 8.1B - Suppose there are c chairs and t tables in a...Ch. 8.1B - Prob. 7ACh. 8.1B - Prob. 8ACh. 8.1B - Prob. 9ACh. 8.1B - Matt has twice as many as stickers as David. If...Ch. 8.1B - Prob. 11ACh. 8.1B - Prob. 12ACh. 8.1B - Find the first term and the difference in an...Ch. 8.1B - Find the first term in a geometric sequence if the...Ch. 8.1B - A ball is dropped from a height of 20 meters and...Ch. 8.1B - Consider the following arithmetic sequences....Ch. 8.1B - Prob. 18ACh. 8.2 - Students were asked to find three consecutive...Ch. 8.2 - Prob. 2MCCh. 8.2 - Create an equation with x on both sides of the...Ch. 8.2 - Prob. 4MCCh. 8.2 - Prob. 5MCCh. 8.2 - Prob. 6MCCh. 8.2 - Prob. 7MCCh. 8.2 - Prob. 8MCCh. 8.2 - A student was told that in order to check a...Ch. 8.2 - Prob. 10MCCh. 8.2 - Olivier said that his teacher would not accept 5=x...Ch. 8.2 - A student claimed that the equation 2x=3y has...Ch. 8.2 - Prob. 13MCCh. 8.2 - Prob. 14MCCh. 8.2 - Prob. 15MCCh. 8.2 - Prob. 16MCCh. 8.2 - Prob. 17MCCh. 8.2 - Prob. 18MCCh. 8.2 - Write an algebraic equation relating the variables...Ch. 8.2 - a. Show that the sum of every three consecutive...Ch. 8.2 - Prob. 21MCCh. 8.2 - Prob. 22MCCh. 8.2 - Prob. 1NAEPCh. 8.2 - Prob. 2NAEPCh. 8.2 - Archaeologists measure the lengths of certain...Ch. 8.2 - Jessica makes clay bowls. The following equation...Ch. 8.2A - Consider the balances: What is the value of each...Ch. 8.2A - Prob. 2ACh. 8.2A - Solve each of the following if x is a real number....Ch. 8.2A - Ryan is building a matchstick sequence so that one...Ch. 8.2A - For a particular event, 812 tickets were sold for...Ch. 8.2A - An estate of 486,000 is left to three siblings....Ch. 8.2A - A 10-ft board is to be cut into three pieces: two...Ch. 8.2A - Prob. 8ACh. 8.2A - Miriam is 10 years older than Ricardo. Two years...Ch. 8.2A - In a college, 20 times as many undergraduate...Ch. 8.2A - A farmer has 1200 yd of fencing to enclose a...Ch. 8.2A - The sum of three consecutive terms in the...Ch. 8.2A - Carlos bought 430 feet of fencing. With this, he...Ch. 8.2A - The sum of four consecutive natural numbers is...Ch. 8.2B - Consider the following balances: a. Which shape...Ch. 8.2B - Prob. 2ACh. 8.2B - Prob. 3ACh. 8.2B - Prob. 4ACh. 8.2B - Prob. 5ACh. 8.2B - Prob. 6ACh. 8.2B - Prob. 7ACh. 8.2B - Matt has twice as many stickers as David. How many...Ch. 8.2B - Prob. 9ACh. 8.2B - Prob. 10ACh. 8.2B - Prob. 11ACh. 8.2B - Prob. 12ACh. 8.2B - Prob. 13ACh. 8.3 - Prob. 1MCCh. 8.3 - Prob. 2MCCh. 8.3 - Prob. 4MCCh. 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 - Prob. 16MCCh. 8.3 - Prob. 17MCCh. 8.3 - Prob. 18MCCh. 8.3 - Refer to the School Book page on page 456 and...Ch. 8.3 - Prob. 20MCCh. 8.3 - Prob. 21MCCh. 8.3 - Prob. 22MCCh. 8.3 - Prob. 23MCCh. 8.3 - Prob. 24MCCh. 8.3 - Prob. 1NAEPCh. 8.3 - Prob. 2NAEPCh. 8.3 - Prob. 3NAEPCh. 8.3A - Prob. 1ACh. 8.3A - Which of the following are function from the set...Ch. 8.3A - a. Draw an arrow diagram of a function with domain...Ch. 8.3A - Suppose f(x)=2x+1 and the domain {0,1,2,3,4}....Ch. 8.3A - Prob. 5ACh. 8.3A - a. Make an arrow diagram for each of the...Ch. 8.3A - The dosage of a certain drug is related to the...Ch. 8.3A - For each of the following, guess what might be...Ch. 8.3A - Quick-Talk advertises monthly cellualr...Ch. 8.3A - For each of the following sequenceseither...Ch. 8.3A - Consider the following two function machines. Find...Ch. 8.3A - In problem 11, find the all inputs for which the...Ch. 8.3A - a. Repeat exercise 11 when the bottom machine...Ch. 8.3A - Consider the function f(x)=x+b, where b is a...Ch. 8.3A - Let t(n) be the function that assigns the nth term...Ch. 8.3A - a. If f(x)=x2 and the output is 2, find all...Ch. 8.3A - Consider a function machine that accepts inputs as...Ch. 8.3A - The following graph shows the relationship between...Ch. 8.3A - A ball is shot out of a cannon at ground level....Ch. 8.3A - Prob. 20ACh. 8.3A - Prob. 21ACh. 8.3A - Which of the following equations or inequalities...Ch. 8.3A - Which of the following are graphs of fucntions and...Ch. 8.3B - The following sets of ordered pairs are functions....Ch. 8.3B - Prob. 2ACh. 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 - In problem 11, find the all inputs for which the...Ch. 8.3B - Prob. 13ACh. 8.3B - Prob. 14ACh. 8.3B - Prob. 15ACh. 8.3B - Prob. 16ACh. 8.3B - Prob. 17ACh. 8.3B - Prob. 18ACh. 8.3B - Prob. 19ACh. 8.3B - Prob. 20ACh. 8.3B - Prob. 21ACh. 8.3B - Prob. 22ACh. 8.3B - Prob. 23ACh. 8.4 - In this chapter, an arithmetic sequence was...Ch. 8.4 - Prob. 2MCCh. 8.4 - Prob. 3MCCh. 8.4 - Prob. 4MCCh. 8.4 - Prob. 5MCCh. 8.4 - Prob. 6MCCh. 8.4 - Prob. 7MCCh. 8.4 - Prob. 8MCCh. 8.4 - Prob. 9MCCh. 8.4 - Prob. 10MCCh. 8.4 - Janis noticed that in the simultaneous equations...Ch. 8.4 - Prob. 12MCCh. 8.4 - Prob. 13MCCh. 8.4 - Prob. 14MCCh. 8.4 - Prob. 15MCCh. 8.4 - Prob. 16MCCh. 8.4 - Prob. 17MCCh. 8.4 - Prob. 18MCCh. 8.4 - Prob. 19MCCh. 8.4 - Prob. 20MCCh. 8.4 - Prob. 1NAEPCh. 8.4 - Prob. 2NAEPCh. 8.4 - Prob. 3NAEPCh. 8.4 - Prob. 4NAEPCh. 8.4A - The graph of y=mx is given in the following...Ch. 8.4A - Prob. 2ACh. 8.4A - Find the x-intercept and y-intercept for the...Ch. 8.4A - Prob. 4ACh. 8.4A - Write each of the following equations in...Ch. 8.4A - For each of the following, write the equation of...Ch. 8.4A - Find the coordinates of two other collinear points...Ch. 8.4A - Prob. 8ACh. 8.4A - Prob. 9ACh. 8.4A - Find the equation for each of the following lines....Ch. 8.4A - For each of the following, find the slope, if...Ch. 8.4A - Write the equation of each line in exercise 11....Ch. 8.4A - Wildlife experts found that the number of chirps C...Ch. 8.4A - The lines AB and BC shown in the figure are graph...Ch. 8.4A - What do the graphs of the following equations have...Ch. 8.4A - Suppose a car is travelling at constant speed of...Ch. 8.4A - Solve each of the following systems, if possible....Ch. 8.4A - The owner of a 5000-gal oil truck loads the truck...Ch. 8.4A - Josephines bank contains 27 coins. If all the...Ch. 8.4B - Prob. 2ACh. 8.4B - ASSESSMENT 8-4B Find the x-intercept and...Ch. 8.4B - Prob. 4ACh. 8.4B - Prob. 5ACh. 8.4B - Prob. 6ACh. 8.4B - ASSESSMENT 8-4B Find the coordinates of two other...Ch. 8.4B - Prob. 8ACh. 8.4B - Prob. 9ACh. 8.4B - ASSESSMENT 8-4B Find the equation for each of the...Ch. 8.4B - ASSESSMENT 8-4B For each of the following, find...Ch. 8.4B - ASSESSMENT 8-4B Write the equation of each line in...Ch. 8.4B - Prob. 13ACh. 8.4B - Prob. 14ACh. 8.4B - Prob. 15ACh. 8.4B - Prob. 16ACh. 8.4B - Solve each of the following systems, if possible....Ch. 8.CR - Each of the following is a geometric sequence....Ch. 8.CR - Prob. 2CRCh. 8.CR - a. If the first two terms of an arithmetic...Ch. 8.CR - There are 13 times as many students as professors...Ch. 8.CR - Write a sentence that gives the same information...Ch. 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. 15CRCh. 8.CR - Prob. 16CRCh. 8.CR - Prob. 17CRCh. 8.CR - Prob. 18CRCh. 8.CR - Prob. 19CRCh. 8.CR - Prob. 20CRCh. 8.CR - Graph each of the following equations: a. y=-2x+5...Ch. 8.CR - Prob. 22CRCh. 8.CR - Solve the following equations if possible: a....Ch. 8 - NOW TRY THIS Noah has some white square tiles and...Ch. 8 - Prob. 2NTCh. 8 - NOW TRY THIS What are the values of and in...Ch. 8 - NOW TRY THIS Solve the Newspaper Delivery problem...Ch. 8 - NOW TRY THIS Determine which of the following are...Ch. 8 - NOW TRY THIS a. Use the slope formula to find the...
Additional Math Textbook Solutions
Find more solutions based on key concepts
1. How much money is Joe earning when he’s 30?
Pathways To Math Literacy (looseleaf)
Students in a Listening Responses class bought 40 tickets for a piano concert. The number of tickets purchased ...
Elementary and Intermediate Algebra: Concepts and Applications (7th Edition)
True or False The quotient of two polynomial expressions is a rational expression, (p. A35)
Precalculus
(a) Make a stem-and-leaf plot for these 24 observations on the number of customers who used a down-town CitiBan...
APPLIED STAT.IN BUS.+ECONOMICS
147. Draining a tank Water drains from the conical tank shown in the accompanying figure at the rate .
a. What...
University Calculus
Teacher Salaries
The following data from several years ago represent salaries (in dollars) from a school distri...
Elementary Statistics: A Step By Step Approach
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Similar questions
- Given r = e−p2−q2, p = es, q = e−s, find dr/dsarrow_forwardSuppose that R (x) is a polynomial of degree 7 whose coefficients are real numbers. Also, suppose that R (x) has the following zeros. -1-4i, -3i, 5+i Answer the following. (b) What is the maximum number of real zeros that R (x) can have? ☐arrow_forward30. An individual who has automobile insurance from a certain company is randomly selected. Let Y be the num- ber of moving violations for which the individual was cited during the last 3 years. The pmf of Y isy | 1 2 4 8 16p(y) | .05 .10 .35 .40 .10 a.Compute E(Y).b. Suppose an individual with Y violations incurs a surcharge of $100Y^2. Calculate the expected amount of the surcharge.arrow_forward
- i need help please dont use chat gptarrow_forward24. An insurance company offers its policyholders a num- ber of different premium payment options. For a ran- domly selected policyholder, let X = the number of months between successive payments. The cdf of X is as follows: F(x)=0.00 : x < 10.30 : 1≤x<30.40 : 3≤ x < 40.45 : 4≤ x <60.60 : 6≤ x < 121.00 : 12≤ x a. What is the pmf of X?b. Using just the cdf, compute P(3≤ X ≤6) and P(4≤ X).arrow_forwardAssignment Brief: 1. Use the trapezium rule with five ordinates (four strips) to find an approximation to giving your answer to 2 decimal places. 1 dx x³ +3arrow_forward
- 59. At a certain gas station, 40% of the customers use regular gas (A1), 35% use plus gas (A2), and 25% use premium (A3). Of those customers using regular gas, only 30% fill their tanks (event B). Of those customers using plus, 60% fill their tanks, whereas of those using premium, 50% fill their tanks.a. What is the probability that the next customer will request plus gas and fill the tank (A2 B)?b. What is the probability that the next customer fills the tank?c. If the next customer fills the tank, what is the probability that regular gas is requested? Plus? Premium?arrow_forward38. Possible values of X, the number of components in a system submitted for repair that must be replaced, are 1, 2, 3, and 4 with corresponding probabilities .15, .35, .35, and .15, respectively. a. Calculate E(X) and then E(5 - X).b. Would the repair facility be better off charging a flat fee of $75 or else the amount $[150/(5 - X)]? [Note: It is not generally true that E(c/Y) = c/E(Y).]arrow_forward74. The proportions of blood phenotypes in the U.S. popula- tion are as follows:A B AB O .40 .11 .04 .45 Assuming that the phenotypes of two randomly selected individuals are independent of one another, what is the probability that both phenotypes are O? What is the probability that the phenotypes of two randomly selected individuals match?arrow_forward
- If 50 is 10% of 500 lanterns, what percent is 100 out of 500 lanterns?arrow_forwardwhat is 4m-1? m=3arrow_forward53. A certain shop repairs both audio and video compo- nents. Let A denote the event that the next component brought in for repair is an audio component, and let B be the event that the next component is a compact disc player (so the event B is contained in A). Suppose that P(A) = .6 and P(B) = .05. What is P(BA)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Use of ALGEBRA in REAL LIFE; Author: Fast and Easy Maths !;https://www.youtube.com/watch?v=9_PbWFpvkDc;License: Standard YouTube License, CC-BY
Compound Interest Formula Explained, Investment, Monthly & Continuously, Word Problems, Algebra; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=P182Abv3fOk;License: Standard YouTube License, CC-BY
Applications of Algebra (Digit, Age, Work, Clock, Mixture and Rate Problems); Author: EngineerProf PH;https://www.youtube.com/watch?v=Y8aJ_wYCS2g;License: Standard YouTube License, CC-BY