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Math
Algebra
CPM EDUCATIONAL PRUbh SELECTED HINTS, ANSWERS, AND ETOOLS T3 > Chapter 5 > Lesson 5.1.3 > Problem 5-49 5-49. David and Regina are competitive racers, and they both aim to break two minutes in their respective races. They are trying to figure out who has the more difficult challenge, since they compete in different sports. David runs the 800-meter race and Regina swims the 200- meter freestyle. They agree to accept the following standards for high school boys and girls: boys' 800-meter mean time is 149 seconds with a standard deviation of 13.6 seconds, girls' 200-meter freestyle mean time is 145 seconds with a standard deviation of 8.2 seconds. Currently, David's best time is 2:02 minutes and Regina's best time is 2: 10 minutes. Assuming times in their respective events are normally distributed, what is the percentile in which David and Regina each fall? Which athlete is relatively faster in his or her sport? SOHint: © 2019 CPM Educational Program. All rights reserved.
CPM EDUCATIONAL PRUbh SELECTED HINTS, ANSWERS, AND ETOOLS T3 > Chapter 5 > Lesson 5.1.3 > Problem 5-49 5-49. David and Regina are competitive racers, and they both aim to break two minutes in their respective races. They are trying to figure out who has the more difficult challenge, since they compete in different sports. David runs the 800-meter race and Regina swims the 200- meter freestyle. They agree to accept the following standards for high school boys and girls: boys' 800-meter mean time is 149 seconds with a standard deviation of 13.6 seconds, girls' 200-meter freestyle mean time is 145 seconds with a standard deviation of 8.2 seconds. Currently, David's best time is 2:02 minutes and Regina's best time is 2: 10 minutes. Assuming times in their respective events are normally distributed, what is the percentile in which David and Regina each fall? Which athlete is relatively faster in his or her sport? SOHint: © 2019 CPM Educational Program. All rights reserved.
BUY
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:
9780134463216
Author: Robert F. Blitzer
Publisher:
PEARSON
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P Prerequisites: Fundamental Concepts Of Algebra
1 Equations And Inequalities
2 Functions And Graphs
3 Polynomial And Rational Functions
4 Exponential And Logarithmic Functions
5 Trigonometric Functions
6 Analytic Trigonometry
7 Additional Topics In Trigonometry
8 Systems Of Equations And Inequalities
9 Matrices And Determinants
10 Conic Sections And Analytic Geometry
11 Sequences, Induction, And Probability
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P.1 Algebraic Expressions, Mathematical Models, And Real Numbers
P.2 Exponents And Scientific Notation
P.3 Radicals And Rational Exponents
P.4 Polynomials
P.5 Factoring Polynomials
P.6 Rational Expressions
Chapter Questions
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 2MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 3MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 4MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 5MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 6MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 7MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 8MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 9MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 10MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 11MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 12MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 13MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 14MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 15MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 16MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 17MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 18MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 19MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 20MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 21MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 22MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 23MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 24MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 25MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
Problem 26MCCP: 26. List all the rational numbers in this set: .
Problem 27MCCP: In Exercises 27-28, rewrite each expression without absolute value bars. | 213 |
Problem 28MCCP
Problem 29MCCP: 29. If the population of the United States is approximately and each person produces about 4.6...
Problem 30MCCP: A human brain contains 31010 neurons and a gorilla brain contains 7.5109 neurons. How many times as...
Problem 31MCCP: College students arc graduating with the highest debt burden in history. The bar graph shows the...
Problem 1RE: In Exercises 1-2, evaluate each algebraic expression for the given value or values of the...
Problem 2RE: In Exercises 1-2, evaluate each algebraic expression for the given value or values of the...
Problem 3RE: You are riding along an expressway traveling x miles per hour. The formula S=0.015x2+x+10 models the...
Problem 4RE
Problem 5RE
Problem 6RE
Problem 7RE: 7. In Exercises 4-7, let . And . Find the indicated set.
Problem 8RE
Problem 9RE
Problem 10RE
Problem 11RE: In Exercises 9-11, rewrite each expression without absolute value bars. 11.
Problem 12RE: 12. Express the distance between the numbers -17 and 4 using absolute value. Then evaluate the...
Problem 13RE: In Exercises 13-18, state the name of the property illustrated. 13.
Problem 14RE
Problem 15RE
Problem 16RE
Problem 17RE
Problem 18RE
Problem 19RE
Problem 20RE: In Exercises 19-22, simplify each algebraic expression 15(5x)+[(3y)+(3y)](x)
Problem 21RE
Problem 22RE
Problem 23RE
Problem 24RE: Evaluate each exponential expression in Exercises (3)3(2)2
Problem 25RE
Problem 26RE
Problem 27RE
Problem 28RE
Problem 29RE: Simplify each exponential expression in Exercises 28-31. 29.
Problem 30RE
Problem 31RE
Problem 32RE: In Exercises 32-33, write each number in decimal notation. 32.
Problem 33RE
Problem 34RE
Problem 35RE
Problem 36RE
Problem 37RE
Problem 38RE: In 2009, the United States government spent more than it had collected in taxes, resulting in a...
Problem 39RE
Problem 40RE
Problem 41RE
Problem 42RE
Problem 43RE: Use the product rule to simplify the expressions in Exercises 41-44.In Exercises 43-44, assume that...
Problem 44RE
Problem 45RE
Problem 46RE
Problem 47RE: In Exercises 47-49, add or subtract terms whenever possible. 47.
Problem 48RE
Problem 49RE
Problem 50RE
Problem 51RE
Problem 52RE
Problem 53RE
Problem 54RE
Problem 55RE: Evaluate each expression in Exercises 54-57 or indicate that the root is not a real number. 325
Problem 56RE
Problem 57RE
Problem 58RE: Simplify the radical expressions in Exercises 58-62. 813
Problem 59RE
Problem 60RE
Problem 61RE: Simplify the radical expressions in Exercises 58-62. 4163+523
Problem 62RE
Problem 63RE
Problem 64RE
Problem 65RE
Problem 66RE
Problem 67RE: In Exercises 63-68, evaluate each expression. 6423
Problem 68RE
Problem 69RE
Problem 70RE
Problem 71RE: In Exercises 69-71, simplify using properties of exponents. 71.
Problem 72RE
Problem 73RE: In Exercises 73-74, perform the indicated operations. Write the resulting polynomial in standard...
Problem 74RE: In Exercises 73-74, perform the indicated operations. Write the resulting polynomial in standard...
Problem 75RE
Problem 76RE
Problem 77RE
Problem 78RE
Problem 79RE
Problem 80RE
Problem 81RE
Problem 82RE: In Exercises 82-83, perform the indicated operations. Indicate the degree of the resulting...
Problem 83RE: In Exercises 82-83, perform the indicated operations. Indicate the degree of the resulting...
Problem 84RE: In Exercises 84-88, find each product. (x+7y)(3x5y)
Problem 85RE: In Exercises 84-88, find each product. 85.
Problem 86RE
Problem 87RE
Problem 88RE: In Exercises 84-88, find each product. (ab)(a2+ab+b2)
Problem 89RE
Problem 90RE: In Exercises 89-105, factor completely, or state that the polynomial is prime. x211x+28
Problem 91RE
Problem 92RE
Problem 93RE
Problem 94RE
Problem 95RE
Problem 96RE
Problem 97RE
Problem 98RE
Problem 99RE
Problem 100RE: In Exercises 89-105, factor completely, or state that the polynomial is prime. x3+64
Problem 101RE
Problem 102RE
Problem 103RE
Problem 104RE: In Exercises 89-105, factor completely, or state that the polynomial is prime. 104.
Problem 105RE
Problem 106RE: In Exercises 106-108, factor and simplify each algebraic expression. 106.
Problem 107RE: In Exercises 106-108, factor and simplify each algebraic expression. (x24)(x2+3)12(x24)2(x2+3)32
Problem 108RE
Problem 109RE
Problem 110RE
Problem 111RE: In Exercises 109-111, simplify each rational expression. Also, list all numbers that must be...
Problem 112RE
Problem 113RE
Problem 114RE
Problem 115RE: In Exercises 115-118, add or subtract as indicated. 115.
Problem 116RE: In Exercises 115-118, add or subtract as indicated. 3xx+2+xx2
Problem 117RE: In Exercises 115-118, add or subtract as indicated. xx29+x1x25x+6
Problem 118RE: In Exercises 115-118, add or subtract as indicated. 118.
Problem 119RE: In Exercises 119-121, simplify each complex rational expression. 1x1213x6
Problem 120RE
Problem 121RE
Problem 1T: In Exercises 1-18, simplify the given expression or perform the indicated operation (and simplify,...
Problem 2T: In Exercises 1-18, simplify the given expression or perform the indicated operation (and simplify,...
Problem 3T: In Exercises 1-18, simplify the given expression or perform the indicated operation (and simplify,...
Problem 4T
Problem 5T: In Exercises 1-18, simplify the given expression or perform the indicated operation (and simplify,...
Problem 6T
Problem 7T
Problem 8T
Problem 9T
Problem 10T
Problem 11T
Problem 12T
Problem 13T
Problem 14T
Problem 15T
Problem 16T
Problem 17T: In Exercises 1-18, simplify the given expression or perform the indicated operation (and simplify,...
Problem 18T
Problem 19T: In Exercises 19-24, factor completely, or state that the polynomial is prime. x29x+18
Problem 20T
Problem 21T: In Exercises 19-24, factor completely, or state that the polynomial is prime. 25x29
Problem 22T: In Exercises 19-24, factor completely, or state that the polynomial is prime. 36x284x+49
Problem 23T: In Exercises 19-24, factor completely, or state that the polynomial is prime. 23.
Problem 24T
Problem 25T: 25. Factor and simplify:
Problem 26T: 26. List all the rational numbers in this set: .
Problem 27T
Problem 28T: In Exercises 27-28, state the name of the property illustrated.
Problem 29T: Express in scientific notation: 0.00076.
Problem 30T
Problem 31T
Problem 32T: Big (Lack of) Men on Campus In 2007, 135 women received bachelor's degrees for every 100 men....
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SELECTED HINTS, ANSWERS, AND ETOOLS CPM EDUCATIONAL PROGE NT3 > Chapter 5 > Lesson 5.1.3 > Problem 5-49 5-49. David and Regina are competitive racers, and they both aim to break two minutes in their respective races. They are trying to figure out who has the more difficult challenge, since they compete in different sports. David runs the 800-meter race and Regina swims the 200- meter freestyle. They agree to accept the following standards for high school boys and girls: boys' 800-meter mean time is 149 seconds with a standard deviation of 13.6 seconds, girls' 200-meter freestyle mean time is 145 seconds with a standard deviation of 8.2 seconds. Currently, David's best time is 2: 02 minutes and Regina's best time is 2: 10 minutes. Assuming times in their respective events are normally distributed, what is the percentile in which David and Regina each fall? Which athlete is relatively faster in his or her sport? OHint: ©2019 CPM Educational Program. All rights reserved.
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