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Mathematical Excursions (MindTap Course List)First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational number, give exact solutions and approximate solutions to the nearest thousandth. 4 y 2 + 20 y = 0BuyFind*arrow_forward*

4th Edition

Richard N. Aufmann + 3 others

Publisher: Cengage Learning

ISBN: 9781305965584

Chapter 9.4, Problem 8ES

Textbook Problem

First try to solve the equation by factoring. If you are unable to solve the equation by factoring, solve the equation by using the quadratic formula. For equations with solutions that are irrational number, give exact solutions and approximate solutions to the nearest thousandth.

Mathematical Excursions (MindTap Course List)

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Ch. 9.1 - Amy is 140 lb and 58 tall. Calculate Amys BMI....Ch. 9.1 - Roger is 511. How much should he weigh in order to...Ch. 9.1 - Bohdan weighs 185 lb and is 59. How many pounds...Ch. 9.1 - Felicia weighs 160 lb and is 57. She would like to...Ch. 9.1 - Finding BMI Using a Nomograph Most medical...Ch. 9.1 - What is the difference between an expression and...Ch. 9.1 - What is the solution of the equation x=8? Use your...Ch. 9.1 - Explain how to check the solution of an equation.Ch. 9.1 - Solve the equation. x+7=5Ch. 9.1 - Solve the equation. 9+b=21

Ch. 9.1 - Solve the equation. 9=z8Ch. 9.1 - Solve the equation. b11=11Ch. 9.1 - Solve the equation. 3x=150Ch. 9.1 - Solve the equation. 48=6zCh. 9.1 - Solve the equation. 9a=108Ch. 9.1 - Solve the equation. 34x=15Ch. 9.1 - Solve the equation. 52x=10Ch. 9.1 - Solve the equation. x4=2Ch. 9.1 - Solve the equation. 2x5=8Ch. 9.1 - Solve the equation. 42b=24bCh. 9.1 - Solve the equation. 4y10=6+2yCh. 9.1 - Solve the equation. 5x3=9x7Ch. 9.1 - Solve the equation. 10z+6=4+5zCh. 9.1 - Solve the equation. 3m+5=26mCh. 9.1 - Solve the equation. 6a1=2+2aCh. 9.1 - Solve the equation. 5x+7=8x+5Ch. 9.1 - Solve the equation. 26y=57yCh. 9.1 - Solve the equation. 4b+15=32bCh. 9.1 - Solve the equation. 2(x+1)+5x=23Ch. 9.1 - Solve the equation. 9n15=3(2n1)Ch. 9.1 - Solve the equation. 7a(3a4)=12Ch. 9.1 - Solve the equation. 5(32y)=34yCh. 9.1 - Solve the equation. 97x=4(13x)Ch. 9.1 - Solve the equation. 2(3b+5)1=10b+1Ch. 9.1 - Solve the equation. 2z2=5(96z)Ch. 9.1 - Solve the equation. 4a+3=7(58a)Ch. 9.1 - Solve the equation. 5(62x)=2(53x)Ch. 9.1 - Solve the equation. 4(3y+1)=2(y8)Ch. 9.1 - Solve the equation. 2(3b5)=4(6b2)Ch. 9.1 - Solve the equation. 3(x4)=1(2x7)Ch. 9.1 - Solve the equation. 2y34=y61Ch. 9.1 - Solve the equation. x8+2=3x43Ch. 9.1 - Solve the equation. 2x33+12=56Ch. 9.1 - Solve the equation. 23+3x+14=53Ch. 9.1 - Solve the equation. 12(x+4)=13(3x6)Ch. 9.1 - Solve the equation. 34(x8)=12(2x+4)Ch. 9.1 - Car Payments The monthly car payment on a 60-month...Ch. 9.1 - Car Payments The monthly car payment on a 60-month...Ch. 9.1 - Deep-Sea Diving The pressure on a diver can be...Ch. 9.1 - Deep-Sea Diving The pressure on a diver can be...Ch. 9.1 - Foot Races The world-record time for a 1-mile race...Ch. 9.1 - Foot Races The world-record time for a 1-mile race...Ch. 9.1 - Black Ice Black ice is an ice covering on roads...Ch. 9.1 - Black Ice Black ice is a nice covering on roads...Ch. 9.1 - Crickets The formula N=7C30 approximates N, the...Ch. 9.1 - Crickets The formula N=7C30 approximates N, the...Ch. 9.1 - Bowling In order to equalize all the bowlers...Ch. 9.1 - Bowling In order to equalize all the bowlers...Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Write an equation as part of solving the problem....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the formula for the indicated variable....Ch. 9.1 - Solve the equation for y. 2xy=4Ch. 9.1 - Solve the equation for y. 4x+3y=6Ch. 9.1 - Solve the equation for x. ax+by+c=0Ch. 9.1 - Solve the equation for x. yy1=m(xx1)Ch. 9.1 - Solve the equation. 3(4x+2)=74(13x)Ch. 9.1 - Solve the equation. 4(x+5)=30(104x)Ch. 9.1 - Use the numbers 5,10,and15 to make equations by...Ch. 9.1 - Solve the equation ax+b=cx+d for x. Is your...Ch. 9.1 - Writing Formulas When we know there is an explicit...Ch. 9.1 - Writing Formulas When we know there is an explicit...Ch. 9.1 - Writing Formulas When we know there is an explicit...Ch. 9.1 - Writing Formulas When we know there is an explicit...Ch. 9.2 - In 1979, his rookie year, Jeff Reardon pitched 21...Ch. 9.2 - Roger Clemenss first year with the Boston Red Sox...Ch. 9.2 - In 1987, Nolan Ryan had the lowest ERA of any...Ch. 9.2 - During the 2015 season, Jake Arrieta of the...Ch. 9.2 - Find the necessary statistics for a pitcher on...Ch. 9.2 - Provide two examples of situations in which unit...Ch. 9.2 - Provide two examples of situations in which ratios...Ch. 9.2 - Write the expression as a unit rate. 582mi in 12hCh. 9.2 - Write the expression as a unit rate. 138mi on 6...Ch. 9.2 - Write the expression as a unit rate. 544 words...Ch. 9.2 - Write the expression as a unit rate. 100m in 8sCh. 9.2 - Write the expression as a unit rate. 9100 for 350...Ch. 9.2 - Write the expression as a unit rate. 1000 ft2 of...Ch. 9.2 - Wages A machinist earns 682.50 for working a...Ch. 9.2 - Space Vehicles The Space Shuttles solid rocket...Ch. 9.2 - Photography During filming, an IMAX camera uses...Ch. 9.2 - Consumerism Which is the more economical purchase,...Ch. 9.2 - Consumerism Which is the more economical purchase,...Ch. 9.2 - Wages You have a choice of receiving a wage of...Ch. 9.2 - Baseball Baseball statisticians calculate a...Ch. 9.2 - Population Density The table below shows the...Ch. 9.2 - E-mail The Radicati Group compiled the following...Ch. 9.2 - Exchange Rates The table below shows the exchange...Ch. 9.2 - Exchange Rates The table below shows the exchange...Ch. 9.2 - Exchange Rates The table below shows the exchange...Ch. 9.2 - Exchange Rates The table below shows the exchange...Ch. 9.2 - Real Estate Dean Baker, co-director at the Center...Ch. 9.2 - Real Estate Dean Baker, co-director at the Center...Ch. 9.2 - Student-Faculty Ratios The table below shows the...Ch. 9.2 - Student-Faculty Ratios The table below shows the...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - Solve the proportion. Round to the nearest...Ch. 9.2 - The ratio of weight on the moon to weight on Earth...Ch. 9.2 - A management consulting firm recommends that the...Ch. 9.2 - Medication The dosage of a cold medication is 2 mg...Ch. 9.2 - Fuel Consumption If your car can travel 70.5 mi on...Ch. 9.2 - The scale on the architectural plans for a new...Ch. 9.2 - The scale on a map is 1.25 in. equals 10 mi. Find...Ch. 9.2 - Art Leonardo da Vinci measured various distances...Ch. 9.2 - Art In one of Leonardo da Vincis notebooks, he...Ch. 9.2 - A pre-election survey showed that two out of every...Ch. 9.2 - One study estimated that in the U.S., the average...Ch. 9.2 - Lotteries Three people put their money together to...Ch. 9.2 - Nutrition A pancake 4 in. in diameter contains 5 g...Ch. 9.2 - Assume each denominator is a non-zero real number....Ch. 9.2 - Assume each denominator is a non-zero real number....Ch. 9.2 - Crime Rates According to a recent study, the crime...Ch. 9.2 - The U.S. House of Representatives has a total of...Ch. 9.3 - Use the 2015 Tax Rate Schedules to solve...Ch. 9.3 - Use the 2015 Tax Rate Schedules to solve...Ch. 9.3 - Use the 2015 Tax Rate Schedules to solve...Ch. 9.3 - Use the 2015 Tax Rate Schedules to solve...Ch. 9.3 - Does a taxpayer in the 33 tax bracket pay 33 of...Ch. 9.3 - In the table for single taxpayers, how were the...Ch. 9.3 - Name three situations in which percent is used.Ch. 9.3 - Multiplying a number by 300 is the same as...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - Complete the table of equivalent fractions,...Ch. 9.3 - e-Filed Tax Returns The IRS reported that as of...Ch. 9.3 - A credit card company offers an annual 2 cash-back...Ch. 9.3 - Charitable Contributions During a recent year,...Ch. 9.3 - Television A survey by the Boston Globe questioned...Ch. 9.3 - A survey of 1236 adults nation wide asked, What...Ch. 9.3 - Wind Energy In a recent year, wind machines in the...Ch. 9.3 - During 1 year. Approximately 2,240,000 oz of gold...Ch. 9.3 - The two circle graphs how surveyed employees...Ch. 9.3 - A TurboTax online survey asked people how they...Ch. 9.3 - Diabetes Approximately 9.3 of the American...Ch. 9.3 - Education Of the 78 million baby boomers living in...Ch. 9.3 - The number of Internet users worldwide went from...Ch. 9.3 - The graph below shows the projected growth of the...Ch. 9.3 - Auto Sales U.S. auto sales increased from 16.5...Ch. 9.3 - Cable TV In 2006. 65.4 million people subscribed...Ch. 9.3 - Consumption of Eggs During the last 50 years, the...Ch. 9.3 - Millionaire Households The following table shows...Ch. 9.3 - The graph below shows the number of active-duty...Ch. 9.3 - Your employer agrees to give you a 5 raise after 1...Ch. 9.3 - Work Habits Approximately 73 of Americans who work...Ch. 9.3 - Nielsen Ratings Nielsen Media Research surveys...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Solve the equation and then check the solutions...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - Write a quadratic equation that has integer...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - First try to solve the equation by factoring. If...Ch. 9.4 - Write a second-degree equation that you can solve...Ch. 9.4 - Write a second-degree equation that you can solve...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - In Exercises 27 to 42, round answers to nearest...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - Round answers to nearest hundredth where...Ch. 9.4 - First-Class Postage The graph below shows the cost...Ch. 9.4 - Show that the solutions of the equation ax2+bx=0,...Ch. 9.4 - In a second-degree equation in standard form, why...Ch. 9.4 - Solve the equation for x. x2+16ax+48a2=0Ch. 9.4 - Solve the equation for x. x28bx+15b2=0Ch. 9.4 - Solve the equation for x. 3x24cx+c2=0Ch. 9.4 - Solve the equation for x. 2x2xy3y2=0Ch. 9.4 - Show that the equation x2+bx1=0 always has real...Ch. 9 - Solve the equation. 5x+3=10x17Ch. 9 - Solve the equation. 3x+18=12Ch. 9 - Solve the equation. 6x+3(2x1)=27Ch. 9 - Solve the equation. 512=n8Ch. 9 - Solve the equation. 4y2+9=0Ch. 9 - Solve the equation. x2x=30Ch. 9 - Solve the equation. x2=4x1Ch. 9 - Solve the equation. x+3=x2Ch. 9 - Solve the formula for the given variable....Ch. 9 - Solve the formula for the given variable. f=v+at;tCh. 9 - Meteorology In June, the temperature at various...Ch. 9 - Falling Objects Find the time that it takes for...Ch. 9 - Chemistry A chemist mixes 100g of water at 80C...Ch. 9 - Telemarketing At a telemarketing firm, an employee...Ch. 9 - Fuel Consumption An automobile was driven 326.6mi...Ch. 9 - Real Estate A house with an original value of...Ch. 9 - Social Media In July 2012, Instagram announced 80...Ch. 9 - City Populations The table below shows the...Ch. 9 - Student-Faculty Ratios The table below shows the...Ch. 9 - Advertising The Randolph Company spent 350,000 for...Ch. 9 - Gardening Three tablespoons of a liquid plant...Ch. 9 - Federal Expenditures The table below shows how...Ch. 9 - Demographics According to the U.S. Bureau of the...Ch. 9 - Diet Americans consume 7 billion hot dogs from...Ch. 9 - Boston Marathon In the 2015 Boston Marathon,...Ch. 9 - Nutrition The table below shows the fat, saturated...Ch. 9 - The Military On Veterans Day in 2000. There were...Ch. 9 - Police Officers The graph below shows the causes...Ch. 9 - Retirement Programs Massachusetts teachers...Ch. 9 - Vacation Days In Italy, workers take an average of...Ch. 9 - Model Rockets A small rocket is shot from the edge...Ch. 9 - Sports The height h, in feet, of a ball t seconds...Ch. 9 - Solve the equation. x43=12Ch. 9 - Solve the equation. x+5(3x20)=10(x4)Ch. 9 - Solve the equation. 716=x12Ch. 9 - Solve the equation. x2=12x27Ch. 9 - Solve the equation. 3x24x=1Ch. 9 - Solve the formula for the given variable. x2y=15;yCh. 9 - Solve the formula for the given variable....Ch. 9 - Geysers Old Faithful is a geyser in Yellowstone...Ch. 9 - Energy The cost of electricity in a certain city...Ch. 9 - Rate of Speed You drive 246.6mi in 4.5h. Find your...Ch. 9 - Parks The table below lists the largest city parks...Ch. 9 - Baseball The table below shows six Major League...Ch. 9 - Social Media In 2015, Twitter announced that they...Ch. 9 - Partnerships The two partners in a partnership...Ch. 9 - Gardening The directions on a bag of plant food...Ch. 9 - Crime Rates The table below lists U.S. cities with...Ch. 9 - Pets During a recent year, nearly 1.2 million dogs...Ch. 9 - Smartphone Sales Apple Inc. reported that it sold...Ch. 9 - Compact Disc Sales In 2005, the total number of...Ch. 9 - Shot Put The equation h=16t2+28t+6, where, can be...

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