1. Statistics

    I neep help on two questions! A condition that occurs in multiple regression analysis if the independent variables are themselves correlated is known as: 1. autocorrelation 2. stepwise regression 3. multicorrelation 4. multicollinearity (I think this is

    asked by Debra on September 15, 2008
  2. math

    Can someone correct this for me please or help me out.... Why are variables useful in algebra? My answer: Variables are useful in algebra because they detemine an answer that anyone is trying to get to. Variables can represent a single number or a whole

    asked by jasmine20 on January 1, 2007
  3. Math

    Hi there I need help with the restrictions on the variables of this question: Simplify. State any restrictions on the variables. log(x^2+7x+12)/log(x^2-9) So my answer is: log(x+4/x-3) which is correct. Now for the restrictions, I have: x3 However the back

    asked by Halle on June 13, 2009
  4. science

    Writing variables and hypothesses What about them? i don't even understand them and i have to make up 4 variables and hypothesses about independent and dependent variables i don't even understand them and i have to make up 4 variables and hypothesses about

    asked by Farah on September 18, 2006
  5. Pre-Algebra

    this is the question please help me explain what to do its confusing. The rate that a hot tub drains is 5.9L/min.How many minutes does it take to drain a 160L hot tub? ~27 mins. Rate*time= volume solve for time. ((27.12 to be exact)) Hi Science. (And don't

    asked by Kemmaris on May 15, 2007
  6. Regression

    1)Price of COke 2)Price of Pizza 3)Price of Beef 4)Quantity of Beef 5)Income 1) List and explain each of the components of you regression model, both the dependent and independent variables 2) list each of the indepedent variables, and hypothesize the sign

    asked by Peter on September 30, 2009
  7. Algebra

    -2x+6 what is the rate of change between the two variables, what is the y intercept, can you Also answer these same questions for the equation y = -3x + 10

    asked by Anonymous on September 10, 2016
  8. MATH,ALGEBRA

    My questions are: why are variables useful in algebra? Also, what makes the use of variables difficult to understand? Variables are things that change or vary. Depending on which variables concern you, you might want to be able to predict just how they

    asked by jasmine20 on December 27, 2006
  9. math

    What are the important variables in the problem below? A test is worth 50 points. Multiple-choice questions are worth 1 point, and short-answer questions are worth 3 points. If the test has 20 questions, how many multiple-choice questions are there?

    asked by aaron on September 28, 2015
  10. Math

    The trigonometry practice exam has 6 questions with the answer A 8 questions with the answer Baby 10 questions with the answer C and 9 questions with the answer D The number of different answer keys that can be created with the letters above is A. 2.27 ×

    asked by Louis on March 2, 2018
  11. Algebra

    I was given this problem to solve and no matter what order I multiply the variables I don't get the right answer. 27xy, when x=12.7 and y=100.4 the answer is 34,427.16 I cannot figure out the way to achieve this answer. I find problems with variable fairly

    asked by Aria on April 16, 2011
  12. math

    In the space below, indicate the values stored in the variables A,B,C, and D for the program. Enter your answers by typing in the value of A for Answer 1, value for B in Answer 2 and so on. Do this for all four variables.(8 points) 10 DATA 2,3,4,5 20 READ

    asked by Anonymous on February 15, 2012
  13. English

    1. This time only the members of Group One can answer the questions. 2. This time only the memvers in Group One can answer the questions. (Which preposition should I use? Can we use both prepositions? Which one is commonly used?) 3. Group One members only

    asked by rfvv on April 16, 2013
  14. Math(Factorial)

    A women student is to answer 10 out of 13 questions on a test. Find the number of choices where she must answer: (a) the first two questions; (b) the first or second questions but not both; (c) exactly 3 out of the first 5 questions (d) at least 3 of the

    asked by Anonymous on April 9, 2014
  15. Science

    I have 8 questions and 1 question in the end that I don't need help with. Identify possible variables in the following situations. What variables can affect the sprouting of a bean seed? I think (I didn't answer yet so I'll just go with what I think oh and

    asked by anon on August 20, 2015
  16. Biochemistry, Biology, Chemistry

    An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a

    asked by Biochemistry on January 26, 2013
  17. Regression Analysis

    1)Quantity of Beef 2)Price of Beef 3)Price of Pizza 4)Price of Coke 5)Income 1- list and explain each of the components of your regression model, both the dependent variable and the independent variables 2-list each of the independent variables,

    asked by Peter on September 30, 2009
  18. Sociology

    What are necessary to explain research findings? a- variables b-theories c- symbols d- research models I'm not sure of the answer because you would need models to conduct the research and theories to model the research. I don't think symbols would explain

    asked by Steve on August 8, 2015
  19. Sixth Grade Math

    1. Write a phrase in words for each algebraic expression. A. "t - 29" Answer:29 minus t B. "a take away 16" Answer:16-a Write an algebraic expression with two variables and one constant. Answer: 150 + xy Did I answer the questions correctly?

    asked by Stephon on December 18, 2014
  20. systems word problems

    the sum of two numbers is 11. their product is 30. find the numbers. answer 5,6 represent the unknown by variables using let statements, translate into equationsusing variables. combine hem using substitution or elimination. answer the question by

    asked by ed on March 2, 2010
  21. 8th Grade Algebra: Answer Check

    Find the length of the 3rd side of each right triangle. 1. 8^2+15^2=c^2 Answer: c=17 2. 5^2+b^2=13^2 Answer: b=12 3. 9^2+13^2=c^2 Answer: c~15.81 Simplify. Assume that all variables are nonnegative. { this means square root 4. {12 Answer: 2{3 5. 2{75

    asked by Joy on January 21, 2009
  22. Science

    There can be several controlled variables. If an experiment is to be useful, only one variable at a time can be manipulated intentionally. All other variables must be controlled throughout all parts of the experiment. If more than one variable is altered,

    asked by anon on August 24, 2015
  23. Math (Sorta dumb question)

    I'm given the equation S = L(1 - e^(-kt)) I am asked to write S as a function of t when L = 100, S = 25 when t = 2 So would my final answer just have S and t as variables? Or have S, t and L as variables? Ended up with S = 100(1 - e^((ln(3/4)/2)*t) Or is

    asked by Ray on June 2, 2017
  24. Math

    In each case, determine whether the situation calls for a discrete or continuous random variables and explain your answer.

    asked by Alex on March 30, 2010
  25. medical codding and billing

    Can someone plesae help me. I need to to answer these four quetions. I got something, but I'm not sure if Igot it right. The questions are, How can eliminating abbreviations reduce errors?. Should written policies be developed for abbreviation usage? If

    asked by kp on August 2, 2009
  26. medical coding & billing

    Can someone plesae help me. I need to to answer these four quetions. I got something, but I'm not sure if Igot it right. The questions are, How can eliminating abbreviations reduce errors?. Should written policies be developed for abbreviation usage? If

    asked by Sharon on September 24, 2009
  27. physics

    a 1000 kg truck traveling at a speed of 40m/s skids to a halt on wet concrete where µk = 0.60. how long are the skid marks? (Please explain all variables and equations I'm clueless in this subject) I keep trying to use the equation I found online: d=

    asked by joe on October 20, 2016
  28. Easy Econ, help!

    Recall the production frontier (ppf) model from intro Econ ( refer to the basic butter and guns graph that could be found on Wikipedia). What are the exogenous variables in this model and what are the endogenous variables? Briefly explain.

    asked by Linda on October 7, 2016
  29. MATH/ALGEBRA PLEASE

    Okay, I think I have arrived at all the answer to the questions thrown my way. However, how do I explain what is happening “graphically”, where the services are charging same rate? : Your company must use a transportation service to shuttle their

    asked by H on December 18, 2009
  30. Math

    I need help solving this math problem, please: Problem: Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0 points. Angela answered an

    asked by Patti on October 6, 2008
  31. math help

    I need help solving this math problem, please: Problem: Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0 points. Angela answered an

    asked by Patti on October 7, 2008
  32. Science

    I have vocabulary words for science that I have to define and I cant find the defintions for Manipulated variables, responding variables, controlling variables. Can someone help me?

    asked by Kiephier on September 9, 2008
  33. Algebra word problem

    There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest

    asked by Linda on October 5, 2011
  34. Math-Stats

    An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second

    asked by Jen on October 10, 2011
  35. Math (Stats)

    In order to predict y-values using the equation of a regression line, what must be true about the correlation coefficient of the variables? A. The correlation between variables must be an x-value of a point on the graph. B. The correlation between

    asked by Ray on March 11, 2017
  36. overview of teaching techniques

    how should students be grouped to best encourage learning? (a)according to same abilities (b)according to same attitudes (c)according to same interests (d)according to a common task (my answer) which of the following types of questions are unfortunately

    asked by susue on August 25, 2011
  37. Math

    The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in

    asked by Anonymous on January 31, 2017
  38. Math

    The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in

    asked by Anonymous on January 31, 2017
  39. Math

    The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in

    asked by Ivo on January 31, 2017
  40. matt/116

    Will someone please help me find the answer to this question please. How do you write a system of linear equations in two variables? Explain this in words and by using mathematical notation in an equation.

    asked by Sade C on February 12, 2013
  41. overview of teaching techniques

    which of the following statements is a good technique to use when tutoring a student? (a)''the next problem is easy.you should be able to get it.'' (b)''this next problem is hard,but lets see if you can get it.''(my answer) (c)''johney and erica can do

    asked by susue on August 25, 2011
  42. MATH

    I am confused about the following problem. Could someone help me out? In a statistic class, the average score of midterm is 75 and the SD is 8. The average score of final is 65 and the SD is 12. The scatter diagram of the two variables (midterm/final

    asked by YAMI on March 28, 2015
  43. statistics

    A multiple choice test has 3 questions and each question has 3 choices. If Nacho takes this test, what is the probability that he will: (a)answer all questions correctly? (b)answer all questions wrong? (c)answer two questions correctly?

    asked by Venice on February 8, 2014
  44. math

    A test consists of 120 questions. Each correct answer, each wrong answer and unanswered question in the test carry 1 Mark, 0.5 Mark and 0.25 Mark respectively. Find the maximum number of questions that the candidate could have answered wrongly in the test,

    asked by sandra on November 18, 2014
  45. algebra

    There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest

    asked by Anonymous on October 4, 2011
  46. literature

    WHAT IS A WONDER QUESTION? my english teacher assigned me a summer assignment and one of the question says: 2. Writing raises questions. Write a wonder question the book raises for you. Wonder questions ask about the significance of something you observe;

    asked by josh on August 29, 2008
  47. PHI 208

    Explain why you think these questions would be the type to reveal the computer to be a computer? Why would these responses have to be given by a human being? (If you don't think there are such questions, explain how the three questions you chose would fail

    asked by lisa on June 27, 2013
  48. geometry

    The diameter of circle C is 18 cm. is 60°. Use this information, the diagram, and your experiences in geometry this semester to answer these questions. (Use .) a) Find . Explain. b) Find . Explain. c) Find . Explain. d) Find the length L of . Show your

    asked by Anonymous on June 1, 2010
  49. Math

    Use symbols to represent unknowns and variables. Write inequalities to answer questions arising from situations. 1. Ten less than a number, x, is greater than 32. 2. A number, n, decreased by 6 is less than or equal to 4. 3. One half of a number, increased

    asked by Pam on September 25, 2013
  50. Applied Social Research Method

    I need some help. For a class I need to do the following: Frame a proper research question and complete the following research processes: tell me your variables, define or conceptualize all you terms and variables, tell me what level of measurement you

    asked by Crystal on March 1, 2012
  51. 6th grade math-ms. sue

    MS. Sue here is exactly what the paper says- think back to the experiment you just designed to test the Best Wheels Bike Shop's new super titanium wheel bearings. Can you be sure that your results are due to the new bearings and not something else? That

    asked by m on January 9, 2012
  52. overview of teaching techniques

    which of the following statements about asking questions is true? (a)low level questions tend to promote academic achievement in students (b)most teachers in classrooms today ask kigh level questions (c)questions should be worded as clearly and simple as

    asked by susue on August 25, 2011
  53. math(Quantitative) ...Pls help me

    Linear regression analysis is based on identifying independent variables and gathering historical data for these variables.Name 2 independent variables to forecast these dependent variables: (a)Demand for hospital Services. (b)Students entering Legon

    asked by Bravo on October 9, 2016
  54. Reading

    I am reading this book called "The Last Book in the Universe" and I have to answer some questions and one of the questions asked : (chapter 2) What happened in the big times that changed the way people live? What do we call this phenomenon? Can you explain

    asked by Sara on August 7, 2012
  55. Math

    Earl answered 2 more math questions correctly than Anna did. Anna answered 3 fewer questions thatn Juanita did. Juanita answered 21 questions correctly. How many questions did Earl answer correctly? Could someone explain how to get the answer. Thanks.

    asked by Mattie on September 18, 2008
  56. algebra

    he is missing 3 cents to buy an ice cream bar. she is missing 5 cents to buy the same ice cream bar. they combine their money but they are still 1 cent short. how much is the ice cream bar? Let x denote how much he has and y denote how much she has. Let p

    asked by alejandra on September 10, 2006
  57. Psychology

    A scientist studied whether climate affected growth in rats. All rats were the same age and from the same parent rats. For the study, they were raised in three distinct climates: tropical, arctic, and multiseasonal. In this study, the climates are

    asked by Carmela on February 27, 2014
  58. math

    Four key marketing decision variables are price (P), advertising (A), transportation (T), and product quality (Q), Consumer demand (D) is influenced by these variables. The simpiest model for decribing demand in terms of these variables is: D = k - pP + aA

    asked by Rachael on September 8, 2013
  59. 8th grade math

    I need someone to explain how to solve equations with two variables and tell me what the formula or equation is? Please help and explain. Thank you!

    asked by saranghae12 on March 2, 2012
  60. math

    I am bouncing this questions for an hour now and still have not come up with answer I believe in. Can you solve for a variable in an equation? Explain the answer Can you help?

    asked by Shaira on August 2, 2010
  61. are these correct

    Here is the questions it says to simplify: xyy^2 x^3 and here is the answer x^4 y^3 ---------------------------- here is another one m^3 pmxm^2 x^3 p^5 and here is the answer m^6 p^6 x^4 ---------------------------- and here is another one xm^2 xm^3 x^3 m

    asked by Benita on August 2, 2005
  62. Pre-Calculus

    Could you please explain how to use a matrix (matrices) to solve a system of linear equations (two variables)? My book doesn't explain it in a way I can understand. Please and thank you.

    asked by Caroline on January 24, 2013
  63. maths

    In a test there were 25 multiple-choice questions. They were marked as follows: 2 marks for each correct answer 0 marks for a non-attempt 1 mark for an incorrect answer. Sarah attempted 4 5 of the questions and received 22 marks. How many questions did she

    asked by Jannie on October 12, 2010
  64. maths

    In a test there were 25 multiple-choice questions. They were marked as follows: 2 marks for each correct answer 0 marks for a non-attempt -1 mark for an incorrect answer. Sarah attempted 4 5 of the questions and received 22 marks. How many questions did

    asked by Jannie on October 15, 2010
  65. math

    can someone please answer these questions for me?: 1. if the measure of an interior angle of a regular pentagonis 108 degrees, then the angle sum of that regular pentagon must be: A. 120 degrees B. 360 degrees C. 540 degrees D. 720 degrees 2. is it

    asked by Brianna on December 12, 2010
  66. Information Systems in Organizations

    Directions: Test your knowledge of this topic by selecting the best answer for each of the following questions. When you click the Submit button, you will see your score and the results will go to your instructor. You may want to refer to the general

    asked by Denise on May 18, 2012
  67. (ASAP)

    how can a relationship between water depth and time to ascend to the water's surface be a function? Explain how the two variables are related. Answer this Question

    asked by Lola on September 10, 2013
  68. Physics

    HI I'm just looking for an answer for 3 questions as my textbook does not explain the answer. How a tin can loses heat through: 1) Conduction 2) Convection 3) Radiation

    asked by Jamie on September 30, 2014
  69. ART 101 ART APPRECIATION

    Review the “Questions Art Historians Use” section in the Introduction of the textbook. Select two of the five questions. Explain what art historians are trying to gain by asking each question and how they might go about finding an answer.

    asked by LORETTA on April 27, 2015
  70. math

    a)The sales representative tells you they also have two floor plans available, but they only have 38 homes available. Write an equation that illustrates the situation. Use x and y to denote floor plan #1 and floor plan #2 respectively. b)The representative

    asked by Kammy on November 7, 2009
  71. math

    1.make up 10 different algebraic expressions 5 of them will have a single variable & 5 will have multiple variables 2.identify the - variables - coefficients - constants 3.pick values for your variables and tell my what your expressions is worth

    asked by estefano on September 7, 2008
  72. math

    1.make up 10 different algebraic expressions 5 of them will have a single variable & 5 will have multiple variables 2.identify the - variables - coefficients - constants 3.pick values for your variables and tell my what your expressions is worth

    asked by estefano on September 7, 2008
  73. algebra2

    Using complete sentences, explain which method you would use to solve the following system of equations and why. In your answer, include the solution to one of the variables and how you found it using the method you chose. 2x + y + z = –7 x – 3y + 4z =

    asked by Rayniya on November 22, 2010
  74. Estimating sums and differnces of fractions

    Hello! My 10 year old daughter is having trouble understanding these preparation questions from her math teacher. I know the answer but I don't know how to explain it to her.. I'm sorry if that doesn't make any sense. When I was in 5th grade they taught us

    asked by Mrs. Trisha on December 11, 2014
  75. statistics for health research

    1.A study is conducted to determine the factors that affect the increased maternal mortality rates in Kenya. Establish the variables (at least 5 variables) that you would use to conduct the study. State your expected results and explain how you will apply

    asked by maureen on June 16, 2014
  76. algebra

    I'm not sure how to answer this question? 1

    asked by Janet on September 12, 2014
  77. creative writing- please help

    Please help me- I signed up for a creative writing class thinking that I would do pretty well because I am not that bad of a writer but the questions that are asked are really hard to answer. The questions that were asked were like "how old is the color T"

    asked by Anonymous on August 29, 2007
  78. math

    Part A of your history test has 15 multiple choice questions. Each question has four choices. Part B has 10 true/false questions. How many ways are there to answer the 15 multiple choice questions? How many ways are there to answer the 10 true or

    asked by John on February 16, 2011
  79. Algebra help

    Okay, I think I have arrived at all the answer to the questions thrown my way. However, how do I explain what is happening “graphically”, where the services are charging same rate? : Your company must use a transportation service to shuttle their

    asked by H on December 18, 2009
  80. statistic

    Quiz has 6 questions. Each question has five possible answers, only one of each 5 answers is correct. If student randomly guesses on all six questions, what is the probability to answer 2 questions right? Tip: first, you have to define parameters of

    asked by tanya on December 5, 2010
  81. Chemistry

    I had an equilibrium laboratory and had to answer a few questions after the lab. Here are 2 questions I can't seem to know how to answer. 1. Explain in your own words why a saturated solution in contact with some undissolved solid is considered to be an

    asked by Robert on July 19, 2012
  82. Algebra 1

    your school is conducting a poll that has two parts,one part that has 13 questions and a second part that has 10 questions. Students can answer the questions ineither part with 'agree' or 'disagree'. What power of two represents the number of ways there

    asked by Javar on January 18, 2010
  83. Statistics

    Describe a situation in which you would test a directional hypothesis. Be sure to state the independent variables (e.g., drug or placebo) and the dependent variables (e.g., weight loss) clearly and explain why the hypothesis is directional. Then, revise

    asked by Bradman on November 3, 2015
  84. math/algebra

    I have a question of how do I determine the variables when graphing linear equation? For an example graph x+2y=4, how do you come up with the variables as (0,2) (2,1) and (4,0)? The example in my book does not tell me how they came up with this. I know how

    asked by ms jay on August 23, 2007
  85. Physics

    Consider a capacitor made of two square plates of side l. The distance between the two plates is d . (a) We insert a dielectric of dielectric constant K>1 and width l a distance x (as in the diagram). What is the total capacitance of this arrangement?

    asked by P on March 13, 2013
  86. Analytic Geometry CHECK MY ANSWER

    A neighborhood swim club charges a one-time fee of $25 to join and $85 each month. If n is the number of months of membership and t is the total amount spent, then the variables are related by the equation t = 85n 25. Which variable is the independent

    asked by Sara on October 3, 2014
  87. Psyc Research Methods

    In the above study, the researchers reported the following mean femininity ratings (i.e. higher numbers indicate greater femininity): male- small meals (2.02) male- large meals (2.05) female- small meals (3.90) female- large meals (2.82) Assume that there

    asked by Jessie on May 2, 2012
  88. Grade 12 Data Management

    There are 12 questions on an examination, and each student must answer 8 questions including at least 4 of the first 5 questions. How many different combinations of questions could a student choose to answer?

    asked by Rebecca on September 27, 2011
  89. Statistic

    There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student answers the questions

    asked by Zul on January 2, 2015
  90. statistic and probability

    There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student answers the questions

    asked by Anonymous on January 10, 2015
  91. Math

    A 100 point test contains a total of 20 questions. The multiple choice questions are worth 3 points each and the short response answer questions are worth 8 pints each. Write a system of linear equations that represents this situation, my answer is to

    asked by Steven on May 6, 2016
  92. Statistics

    I'm trying to figure out which type of factorial ANOVA test to use for this data. The data is from a hypothetical study looking at whether males or females are more likely to ask questions during a seminar where people give various presentations. The

    asked by Grace on February 15, 2018
  93. Mat126: Survery of Mathematics

    In a recent article, the author states that 71% of adults do not use sunscreen. Although 71% is a large percentage, explain why it could be misleading. As you answer the questions above, identify what types of misrepresentation or misuse have been

    asked by Leslie on September 20, 2011
  94. Survey of Mathematics

    In a recent article, the author states that 71% of adults do not use sunscreen. Although 71% is a large percentage, explain why it could be misleading. As you answer the questions above, identify what types of misrepresentation or misuse have been

    asked by Leslie on September 18, 2011
  95. Organic Chemistry

    These questions are somewhat difficult. I believe I am on the right track, but I want to make sure. 1. List these compounds in order of decreasing reactivity towards nitration. Explain your answer. a) acetanilide b) bromobenzene c) toluene d) acetophenone

    asked by Anonymous on June 17, 2014
  96. Math

    A quiz contains three True/False questions. If a student attempts to answer the questions by guessing, what is the probability that the student will answer all three questions correctly ?

    asked by Lauren on April 26, 2016
  97. PROBABILITY MATH

    An unprepared student makes random guesses for the ten true-false questions on a quiz. Find the probability that there is at least one correct answer. Could some one please help me? And explain to me how they got the answer? and is there another way

    asked by HM on November 9, 2011
  98. MATH

    On a TV game show, a contestant makes $600 for every correct answer but loses $500 for every wrong answer. After answering 22 questions, Sarah broke even. How many questions did she answer correctly?

    asked by TAYLOR on May 4, 2014
  99. math

    On a TV game show, a contestant makes $800 for every correct answer but loses $500 for every wrong answer. After answering 26 questions, Sarah broke even. How many questions did she answer correctly?

    asked by Christina on November 16, 2012
  100. MATH

    An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second

    asked by Jennifer on November 11, 2011