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# Algebra And Trigonometry I MA 15300

Purdue

GPA 3.97

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This 3 page Class Notes was uploaded by Dorothea Bode on Saturday September 19, 2015. The Class Notes belongs to MA 15300 at Purdue University taught by Staff in Fall. Since its upload, it has received 19 views. For similar materials see /class/208123/ma-15300-purdue-university in Mathematics (M) at Purdue University.

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Date Created: 09/19/15

MA 153 Exam 1 Information BRING YOUR STUDENT ID TO THE EXAM WITH YOU Exam 1 is Thursday February 6 at 700 pm It is a one hour exam The exam will cover Lessons 1 8 including both lessons 1 and 8 There will be 15 total questions on the exam It is a multiple choice machine graded exam There is no partial credit on any question You will be given a question sheet and a scantron sheet Only the scantron sheet will be graded so it is very important that you have filled in the correct name student ID number section number see your instructor and that you have answered all questions including all bubbles for the above information The formulas provided on the exam if needed are the factoring formulas for the sum and difference of two cubes You are responsible for knowing all other formulas used on homework problems Location The exam will be held in the Elliott Hall of Music the main floor Make sure that you know where your instructor s sections are sitting You will be sitting every 4 h seat starting with the aisle seats You must sit with your instructor s sections Please see your instructor for the aisle and row numbers Bring a scienti c calculator with you to the exam You will not be allowed to use a graphing or programmable calculator so do not bring one If you forget your calculator or the batteries run down you will have to work the exam without a calculator There will not be one for you to borrow and you may not use your neighbor39s Optional Review Problems for Exam 1 Page 50 3 4 11 13 15 16 17 22 23 28 31 42 44 45 46 50 51 52 60 61 67 68 75 77 79 84 Page 120 2 3 4 55 60 62 You may also print old exams from the MA 153 web page answers are also available The review problems and old exams are a good review for the exam you will be taking however any type of problem covered by your homework is a possibility for the exam Also remember that the coverage on your exam may be different than the coverage on old exams Further the format of some of the old exams are not multiple choice but your exam will be multiple choice Cengage Now Hints for Lesson 11 12 and 13 In general You can visit wwwmathpurdueeduMA 15300 and use the discussion board to post questions andor read responses Josh will be live on that board MWF from 68 pm all semester If you post a question at a different time he will respond as soon as he is able Do not post after 800 pm on a due night and expect an immediate answer He will not help you as a tutor but may provide some hints Please do not expect him to solve things for you In general use Mozilla browser with a PC Internet Explorer can cause technical issues with Cengage Now problems We recommend using an ITAP computer or following the con guration instructions on the Cengage Now homepage If you log in and see a message that says popups are blocked enter Cengage Now anyway That error does not affect your assignments However a current version of Java must be installed for Cengage Now to work properly If the system check detects a Java problem follow the instructions given to correct that You can always view the correct answer to each problem after submitting the assignment Click on view assignment details It will show you what you entered and what the correct answer was If you log back into the assignment you will get a different version of the problems that were not correct Correct problems stay correct and you do not redo them Lesson 1 1 For equations using the quadratic formula you must simply your answer as much as Him possible before entering For example T must be simplified to 3i or 3 i 4 To enter a subscript ql for example type q then choose xu from under the log x menu Math hint Remember that all values represent positive quantities so we disregard the negative square root and only use the positive Do NOT rationalize the denominator and you can leave the fraction under one square root 5 It is easier to leave the 12 instead of multiplying both sides by 2 Subtract the s to the right side and use the quadratic formula This is a fairly difficult problem To enter a subscript and an exponent use 2 option under the log x menu Again all values represent positive quantities so disregard the negative square root 7 Math hint When solving the equation one of the answers does not make practical sense to the application problem Choose the solution that does make sense and nd the dimensions of the sheet of paper For example since the length was twice the width if my answer that made sense was 9 the dimensions are 9 by 18 Lesson 12 1 Math hint You will use the quadratic formula to solve for t Round answers to three decimal places 2 b Math hint This equation will factor by trial and error to nd v Remember to disregard the answer that does not make practical sense to the problem 4 and 5 This problem could factor by trial and error but it is probably easier to use the quadratic formula Remember to disregard the answer that does not make practical sense to the problem 1 Math hint Remember that the rate given is mph miles per hour and therefore your answer will be in terms of hours To round to the nearest minute you must multiply your answer by 60 then round to the nearest minute 00 If no pizza box picture shows refer to 71 in the textbook on page 86 for the picture of the pizza box All the numbers you will need are shown online Lesson 13 l2 and 3 Enter the answer in the form abi no factoring of common factors Use lower case 139 as the imaginary unit 6 and 7 Math hint Remember to use the conjugate of the denominator Then be sure 3 to wr1te your answer in the form abi For example to wr1te 1 2 1n the 1 form abi I multiply the numerator and denominator by 1 2139 The result is To enter online it must be written as abi or 35 65139 The same would be true on an exam 8 Math hint Before you FOIL be sure to change the radicals to their imaginary counterparts For example xl l6 is 4139 0 Math hint If two imaginary numbers are equal to each other then their real parts have to be equal as do the imaginary parts For example if 2x y l6i 10 4yz39 then 2x y 10 and 16139 4yz39 Then you can solve for x and fory solve fory first

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