Critical Thinking/Math

9,720 results, page 59
  1. math

    9. In Mr.chin's math class there were g girls and b boys. The number pf girls was 5 less than twice the number of boys. What is the value of g in terms of b? this is what I have so far: 2n-5
  2. Math

    Lisa finished 21 out of her 30 problems in class. What percent of the math problems did Lisa finish in class?
  3. math

    I need help with Lesson 11: Tools of Geometry Unit Test Essential Math 6 B Unit 2: Tools of Geometry
  4. Math

    There are 30 students in a math class. 12 belongs to the computer club and 8 belongs to the photograph club. three belongs to both. how many belongs to neither???
  5. math

    First grade math Tell the Rule? Group 1 3 flowers w/4 petals each Group 2 3 flowers w/five petals each in triangle?
  6. math

    Lesson 14: Equations and Inequalities Unit Test CE 2015 Math 7 A Unit 4: Equations and Inequalities
  7. Math

    Whole Number Math Riddle Clue 1: Double my tens digit and get my ones digit. Clue 2: Double me and I am less than 50
  8. maths

    Compass bearings of a carin are taken from two points A and B, 400 m apart, along a strsight north-south path, A being due north of B. the bearings of the carin from A and B are 110 degrees and 80 degrees, respectively. choose the two options which give
  9. SCI 162

    Case Study: Gayle and Patrick Read the following case study about Gayle and Patrick. You may also click on the Audio: Thinking It Over if you prefer to listen to the case study. After reviewing the case study, answer the questions on below. Gayle and
  10. Math

    Solve the following system of equations by graphing. If the system is inconsistent or the equations are dependent, say so 5x-2y=3 10x-4y=6 I know the equations are dependent but I am confused on what is the solution set I'm thinking its (10x-4y=6) but I'm
  11. Calculus

    The point (1,-2) is on the graph of y^2-x^2+2x=5. Find the value of (dy/dx) and (d^2y/dx^2) at the point (1,-2). How do I find (d^2y/dx^2)? I found. I found (dy/dx) to be 2y(dy/dx)-2x+2=0, but I don't know how to take the derivative of that to
  12. EED 364

    1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and summarizes your observations: a) What is the importance of having standards in mathematics? How do standards improve mathematics
  13. CheckPoint: Comprehensive Grammar CheckPoint

    Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made
  14. college

    Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made
  15. college

    Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you made
  16. geometry

    I'm having trouble with an assignment that asks me to design a structure so that the sumof the measures of the interior angles of all the individual convex polygons is 4500 degrees. i'm souppoused to have a triangle a hexagon an octagon and a rectangleall
  17. Intro to psychology / science

    Learning and memory researchers have discovered that : A.) physical exercise promotes new cell growth, while mental ecercise only maintains exsisitng cells. B.)stem cells can divide and mature throughout adulthood. C.) age is the biggest limiting factor in
  18. SOCIAL STUDIES

    I had to outline the achievement of Erasmus and I wrote: as a young man, he tried to live in monk, but instead went ot university of paris, where he like the other humanists became popular for his learning & travelled to England where he got to meet king
  19. English

    Can you check if everything is OK in my rephrase of Owen's poem? 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as prematurely old and weak. 2) They are bent over
  20. Fast Physics Help

    I have an image but I can't post it because it is a website. block 1 of mass m1 slides along an x-axis on a frictionless floor with speed of v1i=4.00 m/s. Then it undergoes a one dimentional elastic collision with stationary block 2 of mass m2=.500m1.
  21. physics

    A uniform plank of length 5.6 m and weight 203 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before
  22. English

    correct the following tenese please soemone help me as soon as possible plz plz Concentration does not mean (1) think only one idea. Concentration means holding a central issue in mind while you (2)except or reject ideas that are related to that issue. In
  23. statistics

    Perform a two-tailed hypothesis test on the intrinsic variable AND a two-tailed hypothesis test on the extrinsic variable's data using a .05 significance level. Begin by creating a null and an alternate statement. Use Microsoft Excel to process your data.
  24. Physics 11

    Glycerine has an index of refraction of 1.47. What is the critical angle for a light ray traveling from: a)Glycerin into air b)Glycerin into water a) I know- n1=1.47 n2=1 angle of refraction=90 1.47(sin.anglei)= sin90 1.47(sin.anglei)=1 sin.anglei=0.6803
  25. Maths

    I can't understand this math problem.... Please help me.... ------------------ Problem: In a boys' school, 5/8 of the boys play football and 4/7 play rugby. If every boy plays at least one of the two games, find the fraction of the boys who play both
  26. Math(Please Check!)

    1. Which line is the flattest (or is less steep)? Why? a.y = 5x -6 b.y = 5x + 6 c.y = x - 3 d.y = 1/2x + 3 I think It is C.It has the smallest slope. Someone Please Help me! ...Help me... Doesn't d have the smallest slope? 0.5x. Please...I just want to
  27. Algebra

    I am thinking of a number.It is a multiple of 3 but not 6.It is greater than 25^2 but less than 30^2.The units digit is a perfect square and the sum of the other two digits is the square root of 81. What is my number? A three-dimensional model of a city
  28. Art

    Why do some people feel the wall for Peace in Paris is unsightly? The contemporary design was poorly constructed and is falling apart the contemporary design does not convey ideas of peace with enough clarity the contemporary design clashes with
  29. Metric System

    Hi, Damon helped me with this problem earlier, but im confused on how he got the answer. I really don't understand the math or the mathamatical symbols he used. Would someone maybe explain to me in a different way. E. Coli, a typical bacterius is about 2
  30. 6th grade math

    a farmer is rewarded for saving the king. he can either get 1000 gold bars up front or payment over time for 100 days which begins at 2 gold bars the first day, 4 the second, 8 the third, 16 the fourth, and so on. which one should he choose and why. Show
  31. Algebra 1

    Write an equation for for each translation of y=|x| 1. left 2 units y = |x| consists of two 45 degree curves joined at the origin: y = x for x>0, and y = -x for x < 0. To move the curves to the left 2 units, you want the sign of the term inside the
  32. math

    the bar and graph shows the number of students by major in the college of arts and sciences. What is the ratio of history majors to the total number of students in the college? Math-200 history-300 english-400 science-150 other- 175
  33. math

    Solve following system of equations? x+3z=-2 2x+2y+z=4 3x+y-2z=5 i need help with few so i can get hang of this math plz. Perform row operations write new matrix [132 -312 2-11| 073] R1+R2 using x,yand z variables write system linear equations represented
  34. Math

    Hi I did a quiz today it said I got A 5/9 but it did not show me the correct answers or the ones i missed so if it could be possible that someone could the answers so I could see which ones I need to fix please help me I just came here to see which ones
  35. math

    how do you convert 12.55 to percent? i get 1,255% is that correct? or should it be 125.5%? If the 12.55 is a decimal, then .1255 is the percent. Per Cent means "per 100". the math problem asked me to find the percent increase of the population in africa
  36. Pre-Calculus

    Approximate the greatest real zero of the function g(x)= x^3-3x+1 to the nearest tenth. I know that there is a zero between -2 and -1, and another between 0 and 1 but do not know how to find it to the nearest tenth. The only example shown in my book uses a
  37. effective writing

    COM 150 Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for each number and providing an explanation of why you
  38. math

    it is cross math (like sudouk) six rows across and six rows down 1st row has empty box, +, empty box, + box =6 this row is across 2nd row has x blacked out box, +, blacked out box, x, blacked out box this row is across 3rd row across is empty box, +, empty
  39. Pre calc

    Given that tanθ = 2 root 10 over 9 and cscθ < 0 , find the exact value of cos(θ − pie over 4) . I solved for the other side and got 11. After this idk what to do I was thinking using cos(a-b)=cos(a)cos(b)-sin(a)sin(b) but idk how to witht the pie/4
  40. mircoeconomic

    Lakshani has $5 to spend on pens and pencils. Each pen costs $0.50 and each pencil costs $0.10. She is thinking about buying 6 pens and 20 pencils. The last pen would add five times as much to her total utility as the last pencil.
  41. 5th grade math

    Ms sue I'm sorry I'm totally confused its says round to the nearest tenth in a square kilometer How can I round 297.85 km to the nearest tenth? Her answer was 297.85 but I'm thinking it should have been 300.00 kilometer because the yes place is 5 or more
  42. SCI

    Hi, I really need some help with the anwsers to the First one, having hard time, maybe some help plz? What are the characteristics of scientific thinking and investigating? Why is science literacy important? What skills and tools do scientists use? Why is
  43. Biology

    8. Presenting with symptoms of recurrent infections, weakness, and frequency of urination over a 6 month period, a 34-year-old man is found to have a blood glucose level of 142 mg/dl and an elevated hemoglobin A1c level. His most likely diagnosis is: A.
  44. Math

    My child's teacher sent out questions to prepare for a big math test. He does not understand the questions well and I can't seem to get him to grasp it. I know the answer but could you show some easy methods or something, thank you! By the way, this is NOT
  45. Math

    Samantha has homework in five subjects tonight. She has 15 minutes of science, 20 minutes of math, 30 minutes of reading, 20 minutes of writing, and 15 minutes of geography. If her mom walked in randomly while she was doing her homework, what subject would
  46. U.S History

    Hey, I have a research paper for my college U.S History class and I'm having the hardest time thinking of a topic! It can be about absolutely anything that is correlated with U.S history. I'm sort of interested in World War II, and the Andrew Jackson era.
  47. English

    The question was "What lesson or meaning do you think this story held for the British audience of the Victorian Era?" This is for the story The Mark of the Beast by Rudyard Kipling. I was thinking that the answer was that the lesson was that just because
  48. Studing for French Final

    I have been studing for the past four days except I think I need some better ways to studying for my french final. I am in French 1 and we are doing auditory exams tomorrow and then oral on tues. and the written exam on Wednesday. I have tried not cards
  49. English

    identify the sentence in which the bolded verb does not agree with its subject. A.) Everyone on the team WORKS together well. B.) Both of them ARE LOOKING forward to the field trip. C.) Neither of the boys IS EXCITED about playing
  50. English 4

    1. Which of the following displays a correct use of pronouns? A. Soung spent more money than me B. Jamal was as interested as her C. Claudia has always been better at math than I. 2. Read the following sentence and determine which sentence in each set of
  51. Psychology

    A recent research study found that surfing the internet and accessing non-academic grades resulted in lowering students GPA. Dr. Rushmore studied the relationship between grades and non-academic surfing in a first-year introduction to psychology class.
  52. Statistics and probability

    a sample of 500 drivers was asked whether or not they speed while driving. The following table gives a two-way classification: speed Never Speed totals male 222 78 300 female 128 72 200 totals 350 150 500 We wish to test whether gender and speeding are
  53. Math

    Can you help me understand this math problem...I could figure it out the long way but I think there is a formula that I can use that I'm not remembering: I have 18 different colors of marbles. I'm going to arrange them in sets of three. I want to do this 6
  54. physics

    Praire dogs live in underground burrows with at least two entrances. They ventilate their burrows by building a mound around one entrance, which is open to a stream of air. A second entrance at ground level is open to almost stagnant air. Use Bernoulli's
  55. calc

    a math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the
  56. math

    math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the time
  57. Math (7th grade)

    I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen
  58. MATH please help with this ?

    math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the time
  59. math

    a math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the
  60. Supportive learning environment

    The ideal early childhood schedule for preschool children contains which of the following? A. Frequent changes in activities so children don't get bored B. A 45-minute circle time activity C. Integrated activities within a large block of time D. A specific
  61. math

    a math professor is thrown off the matthews bridges, height 240ft, by a disgruntled calculus class with an intitial upward velocity of 10ft/s a) assumign the acceleration dude to gravity is -32ft/s^2,find the macimum height of the professor. b) find the
  62. Oliver Springs

    Please help,Math,Problem;John and George together raked 7/8 of the yard. John raked 3/4 of that amount. What part of the yard did John rake?
  63. Camansi National High School

    Math In a 3 digit number the hundreds digit is one half of tens digit while the ones digit is more than the tens digit. If the sum of 3 digit is 11, find the numbers.
  64. English

    Subject names at school are as follows. math,science, social studies, computer science,etc. --------------------------------------------------- Can we use 'information' instead of 'computer science' as a subject name?
  65. writing skills

    When you are told time after time that there are no jobs. And it is time _____________ for some creative thinking and acting. Which of the following is the best way to write the underlined portion of these sentences? If you think the original is the best
  66. grade 11 physics

    Consider the optical interface between crown glass and ethanol. Under what conditions would total internal relfection be possible at this interface? ilustrate your answer with a light ray diagram. Okay so you need the angle of incidenc to be greater than
  67. Math

    I have a table and need the math rule but can't figure it out. If the table is: X and Y 2 3 4 4 6 5 8 6 What is the rule??
  68. maths

    5% of 390 Multiply .05 x 390. What answer do you get? The answer is 19.50. Do the math.
  69. fractions

    i want to email you. please send email so i can send my math problems to you.
  70. math

    Television Jim’s mother watches a lot of TV. The screen is 30 inches tall and the bottom of the screen is 6 inches above her eye level while sitting in her favorite chair. To optimize her viewing experience, Jim wishes to calculate how far from the
  71. English

    Where can you find a list of credible sources on the internet, like website for research papers. Critical reading is the best guide to content credibility. In the early days, sites with .edu were reliable, but I find that is no longer a reliable guide. My
  72. Math

    Television Jim’s mother watches a lot of TV. The screen is 30 inches tall and the bottom of the screen is 6 inches above her eye level while sitting in her favorite chair. To optimize her viewing experience, Jim wishes to calculate how far from the
  73. COM 150

    Will someone please check this assignment for me? COM 150 Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix H by selecting the correct sentence (a or b) for
  74. English

    Can someone check of this email is grammatically correct? Thank you. How are things? 1) I’ve been on holiday in England and I’ve been attending an English summer course for two weeks. 2) I’ve met an interesting girl from London, Mary, at a party
  75. fifth grade: subway unit

    I am sitting here trying to figure out what post lessons to give fifth graders who came from a trip to the New York Transit Museum. For my first lesson, I they had to compare the trains/subways in the past to the trains/subways in the present. Do you have
  76. world studies

    1. How did European exploration held lead the way to the Scientific Revolution? --I was thinking that with the more discoveries they were making, they wanted explanations as to how things are that way 2. How was the Scientific Revolution related to the
  77. Math

    when only tom was absent 19 students in his class took a math test and their average score was 82%.when tom came back to school he took the test and got a 72% .what happened to the class average
  78. Math

    Marie has scores of 65,72,80,74, and 85 on five math tests. The final will count as two tests in determining each students overall average. What score must Marie get on the final if she wants her overall average to Ben 80?
  79. algebra

    i have very little information in my math book on the following questions. can you either tell me the answer or a link where i can find my own answer. thanks How do you know if a quadratic equation will have one, two, or no solutions? How do you find a
  80. math

    Hi, I am helping my daughter with her math from being absent. The question is: The area of a triangle is A-1/2bh. For a given area, are b h in a linear relationship? At first we said yes Y = mX, but then I second guessed myself because there's no linear
  81. statistics

    If np is more or equal to 5 and nq is more or equal to 5, estimate P(fewer than 6) with n = 14 and p = 0.5 by using the normal distribution as an approximation to the binomial distribution; if np < 5 or nq < 5, then state that the normal approximation is
  82. 5th math

    I need help with my math .What is the least Common Multiple (LCM) for 6,4,and 8.? please! show how you get the answer. cause, i got( 2,2,2) i'm not sure of myself at all. thank you! another one problem i'm really confuse is the Write a 9- digit numeral
  83. Algebra II

    Can you please explain what formula I need to do to solve the following problem: If 3 laps = 5/8 mile, how many laps needs to be completed to run 3 miles? Don't look for "formulas" to do these kind of questions, use ratios, one of the most powerful tools
  84. essay novel study need ideas and advice

    Jane Austen's novels Pride and prejudice and Persuasion both illustrate the challenges of being a woman in the 1900s. The need to find security, obtain wealth, status and marriage becomes necessary for survival and fulfillment. Unfortunatly, Austen shows
  85. English

    Help:Please change show me anthing that I need to do, by placing the correct form at the it the bottom of the essay. Topic: What is your biggest regret in life? My Biggest Regret Everyone has had some regrets about something in life. Some of the regrets
  86. Psychology

    I need to write a paper regarding a social injustice, but I can't think of any good ideas. I was thinking maybe the fact that people today feel like they need to pay reparations to modern Blacks because their ancestors were slaves is a social injustice,
  87. Math Inequalities

    -9/8x greater than or equal to -1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do
  88. math

    Mike completed 19 math problems before dinner for tonight’s homework, and he completed x problems after dinner. Write an expression to determine the total number of problems he completed.
  89. Math help pls!!!

    the sum of the ages of petra and her mother 44. her mother is 8 years more than twice as old as petra. how old are petra and her mother. this dont make sense so pls help me on this math question help me asap pls and ty
  90. Mays Middle

    Math-The low temperature for 6 consecutive days in Montana city were 9, 3, 4, 16, 11, and 5 degrees. What would the low temperature have to be on the seventh day to have a meanh low temperature of 9 degrees for the week?
  91. Math

    Im trying to help my daughter with some math homework and Im stuck can you help me please this is the problem Jeremy has been home sick with the flu for the last 7 days. While absent from school, he got 31 get well cards from friends. there were 5 more
  92. Statistics

    A manufacturer makes ball bearings that are supposed to have a mean weight of 30g. A retailer suspects that the mean weight is actually less than 30 g. The mean weight for a random sample of 16 ball bearings is 28.8 g with a standard deviation of 3.9 g At
  93. Physics/Math

    You drop a 1.8 kg textbook to a friend who stands on the ground 9 m below the textbook with outstretched hands 1.50 m above the ground. (a) What is the speed of the textbook when it reaches the hands? m/s (b) If we substituted a second textbook with twice
  94. statistics

    A consumer at a bread factory would like to know if there are differences (gender) in bread preferences. Forty adults were randomly selected and asked the following questions: Which type of bread do you prefer? They were instructed to only pick one bread
  95. plz plz plz help me with this problem!

    A consumer at a bread factory would like to know if there are differences (gender) in bread preferences. Forty adults were randomly selected and asked the following questions: Which type of bread do you prefer? They were instructed to only pick one bread
  96. Math- Really need help!

    A consumer at a bread factory would like to know if there are differences (gender) in bread preferences. Forty adults were randomly selected and asked the following questions: Which type of bread do you prefer? They were instructed to only pick one bread
  97. Writing skills

    When you are told time after time that there are no jobs. And it is time for some creative thinking and acting. (1) jobs, or it (2) jobs, it (3) jobs, if it I pick #3
  98. Geometry - Angle Construction

    I need to construct a 75 degree angle. I was thinking I could get a 45 degree angle by drawing a right angle and bisecting it, but I'm not really sure on how to get a 30 degree angle. Am I going about this wrong?
  99. Maths Help !!!!!!!!!!!!

    Hello I'm in grade 9 and i still get confused with the expressions and how to make then in maths although i'm queit very bright ! Any tips on this please thanx Practice. We learn by experience. You may want to buy an extra workbook at the bookstore, which
  100. Food Education

    How is Sodium used in the body? I need to know this for some Food Tech reaserch. Thanks. Thank you for using the Jiskha Homework Help Forum. The body uses sodium to regulate blood pressure and blood volume. Sodium is also critical for the functioning of