Critical Thinking/Math

9,736 results, page 56
  1. Complex numbers

    For the transformation w=(z+i)/(z-i) show that as z moves along the real axis, w moves along a circle centre O and radius 1 I do not know where to start changing it to polar form will help w=magnitude @ (arctan 1/z - arctan -1/z) where magnitude is sqrt
  2. Psychology

    I have to write an essay on a psychology concept and I was thinking about writing my essay on the concept of conformity. However, my professor prefers that we use media examples that occurred after the 28th of January. This example is to be used to explain
  3. art

    hi do you have any ideas for the following project: i need to pick any environment and document a message or issue about it in that exact environment, e.g. take a photo of my work in that place. i'm thinking about focusing on the issues of energy wastage
  4. Physics

    If a 12v battery is in a circuit with two resistors. r1 and r2. R2 is 60ohms. A voltmeter measuring on either side of r2 gives a reading of 8v. Calculate the current in the circuit and the resistance of r1. Am I right in thinking the v = i/r 8 = 7.5 / 60
  5. Math(Unit Rate)

    If 20 units= 10kg whats the unit rate? is that your gf? "sam"???? 20/10 reduce,= 2/1 divide,=.5 Kg/unit calculate the unit rate what dose this mean Find each unit rate. $112 in 8 hours
  6. statistics

    Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores
  7. Math

    Hey i need help on my math hw i just don't get it lol please help me! Here the questions Which of the following equations has a graph that is parallel to the graph of 4x-2y=7? A:-2y = 4x+2 B:7-4x=2y C:4x+2y=2 D:-4x-2y=-7 E:2y=4x+7 Determine if the two
  8. 9th grade math

    Hey i need help on my math hw i just don't get it lol please help me! Here the questions Which of the following equations has a graph that is parallel to the graph of 4x-2y=7? A:-2y = 4x+2 B:7-4x=2y C:4x+2y=2 D:-4x-2y=-7 E:2y=4x+7 Determine if the two
  9. math

    the mass of 3 dictionaries and 2 textbook is 8 kg and the mass of 3 dictionaries and 3 textbook is 9 kg. find the mass of 5 textbooks? math - Steve, Monday, September 19, 2016 at 5:17am 3d+2t = 8 3d+3t = 9 clearly, t=1 i cant understand it
  10. Math

    Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?
  11. math and desperate

    What similarities and differences are there between functions and linear equations? Are all linear equations functions? Is their an instance when a linear equation is not a function support your answer. Im not good at math please help.
  12. Math

    My math teacher said to use the FOIL (First Outer Inner Last) property to simplify these quadratic equations I have made from looking at two parabolas. Here are my equations & how would you use the FOIL property on each of the equations and also can
  13. math,algebra

    why are function notations important, are they really that important in todays world. Why do make math difficult. what are function notations i don't understand why they are important. 1934.3847569
  14. math

    I need a formula. At a math contest,12 problems were given. Five points were awarded for each correct answer, and two points were deducted for each incorrect answer. Matt's score was 39. How many correct answer did he have
  15. Geometry

    Which reason justifies that BD = BC + CD? a. Addition property b. Symmetric Property c. Segment Addition Postulate d. Ruler Postulate I't thinking its Addition Property but then again I'm probably completely wrong...
  16. Social

    In the introduction, explaining the historical conditions or factors that led up to your report A) may be unnecessary, depending on the nature and length of your report. B) is unnecessary in internal reports. C) diminishes your credibility by wasting
  17. Chemistry

    If 0.500 L of a 0.600 M SnSO4 solution is electrolyzed for a period of 30.00 min using a current of 4.60 A and inert electrodes, what is the final concentration of each ion remaining in the solution? (Assume that the volume of the solution does not change)
  18. Psychology Statistics

    In a past class exam paper you have to complete a 2x3 mixed design ANOVA table, after that it asks what further tests should be done which i am unsure of - could someone please help? In another after completing a single factor ANOVA table it asks if this
  19. accounting

    Your company’s sales are 50,000 units. The unit variable cost is $12. Your markup percent on sales is 40% and your fixed costs are $100,000. 1. What is your profit / loss? You are thinking of increasing your advertising by $200,000. Based on previous
  20. Grammar

    Determine if the following sentence employ the correct use of commas and apostrophes.TRUE=correct FALSE=wrong 1.The patient is a 41-year-old, white female with a several-month's history of biliary colic. ANSWER: False Thinking comma after old can be
  21. Criminal Justice

    write a paper comparing and contrasting the role of the defense counsel with that of the prosecutor. Do you think that the defense council is the same as a defense attorney, I just think that this homework question is kind of vague without a lot of detail
  22. Math

    1. What type of graph does not show the number of times a response was given? (1 point) box-and-whisker plot line plot stem-and-leaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point)
  23. physics

    A glass plate whose index of refraction is 1.47 is immersed in a liquid. The surface of the glass is inclined at an angle of 53.0° with the vertical. A horizontal ray in the glass is incident on the interface. When the liquid is a certain alcohol, the
  24. physics

    A glass plate whose index of refraction is 1.67 is immersed in a liquid. The surface of the glass is inclined at an angle of 29.0° with the vertical. A horizontal ray in the glass is incident on the interface. When the liquid is a certain alcohol, the
  25. Chemistry

    A critical reaction in the production of energy to do work or drive chemical reactions in biological systems is the hydrolysis of adenosine triphosphate, ATP, to adenosine diphosphate, ADP, as described by ATP(aq) +H2O (l) --->ADP(aq) +HPO4^2- for which
  26. Calculus Please Help4

    Consider the area between the graphs x+2y=9 and x+6=y^2. This area can be computed in two different ways using integrals First of all it can be computed as a sum of two integrals as integral f(x)dx from a,b + integral g(x)dx from b,c I got a=-6 b=3 c=19
  27. English

    Which is correct? This is a sample: it was made up in three seconds. This is a sample: It was made up in three seconds. Also, how many spaces should go between the colon and the next word? I was thinking two, since the clause after the colon is
  28. ENG 101

    I am wandering if my answers and rationale are correct. The capital X denotes my chosen answer and my rationale follows the statement choices. Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the
  29. Math to Mrs.Sue

    18.   Dawn Lingua bought three yards of cloth to make some curtains. The cloth was on sale for $2.25 per yard. How much did Dawn pay for the cloth if the sales tax was 5%?      A. $7.25 B. $7.09 C. $2.36 D. $8.07 I am thinking between A B C. I
  30. Math

    Every hour a clock chimes as many times as the hour. For example, the clock chimes 4 times at both 4:00 am and 4:00 pm. How many times does it chime from 4:00am through 11:00 pm of the same day including 4:00 am and 11:00 pm.? What is the proper way of
  31. english

    I have to write a persuasive speech about religion and I was wondering what would be some good ideas to base my speech off? I was thinking something like... religion is relevant anymore, or religion causes more bad then good. Any other ideas? It has to be
  32. HELP!!!!!!

    In what ways is soil pH and light the two critical factors for plant growth in the Boreal Forest? Since this is not my area of expertise, I searched Google under the key words "ph light 'Boreal Forest'" to get these possible sources: (Broken Link Removed)
  33. physics

    How would I figure out the answer to this question? A critical angle of 24.4 degrees applies to: a) light travelling from air into diamond b) light travelling from diamond into air c) light travelling from water into diamond d) light travelling from
  34. adult education

    Math If the line passing through the points (1,a) and (4,-2)is parallel to the line passing through the points (2,8) and (-7,a + 4), What is the value of a ? Please help, I don't understand how to set this one up.
  35. math

    a student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?
  36. math

    my math homework tells me to find the area of a circle using it's circumference. the circumference given was. can someone explain to me how to find the area?
  37. 4 grade math

    i have a question on a math problem, please#1 explain why 7*8 is not a number sentence. Next question is write two true number sentence. thank you!
  38. math

    If a single letter is drawn from the set( matheics) what is the probability that the letter drawn is a member of the set (math)
  39. algebra

    A math class has a total of 47 students. the number of females is 17 less than the numberof males. how many males and how many females are in class?
  40. Geometry: Right Triangles

    In my math homework, it is asking me to find the height of a triangle. Does anyone know how to find the height of a triangle? If you could, could someone give me an example problem? Thanks a lot!
  41. English

    I just want to see if these are correct. Orig.1.He was sad to leave. (superlative) S/B 1. He was saddened to leave. Orig. 2. She ran as fast as the others on the team (comparative) S/B 2. She ran faster than the others ran on the team Orig. 3. Throughout
  42. Business - royalty

    I'm watching shark tank and they keep going on about royalty. They'll say something along the lines of: I'll give you 500k for 30% equity and 10% royalty. I don't really understand all this business stuff but what I think is going on it that they're giving
  43. As physics

    How do you calculate the braking distance? driver reaction time=0.6s initial speed of car=30ms-1 speed*2= distance*4 Please show all the steps and the equations you used in words the question states initial speed*2 is equal to = distance*4 If you need
  44. Java Computer Science

    Say I write an application that prompts the user to enter an integer. If the user enters a double or string or anything, anything not an integer an error will appear. I'm having trouble writing code to combat this problem so I can errorproof my
  45. Chemistry

    Would it be better to use an unknown acid sample of a size that should require 10.00 milliliters or one that would require 15.00 milliliters of titrant? Explain. I have been thinking about this question... And I don't believe it matters what measurement of
  46. investing

    A company is thinking of investing some surplus cash in 30 year $1000 face value Microsoft 6% annual coupon bonds. It plans to pay $925 each for 10,000 of them, now, and expects to SELL them for $1025 each at the end of 5 years. Make a determination about
  47. PSYCH

    In algebra class Stan was a low performer, however, to build his self-esteem he approached the new student in class and informed the student he had the highest score in the class and to contact him if the student needed assistance. What type of systematic
  48. Math

    Math help??? 1.) 13 1/3 divided by 6 2/9 2.) 15 * 4 2/3 3.) 10 2/3 divided by 4
  49. Math

    Math help??? 1.) 13 1/3 divided by 6 2/9 2.) 15 * 4 2/3 3.) 10 2/3 divided by 4
  50. algebra 1 help

    fin the complement and the supplemnt of the angel measure 1) 130 complement-40 suplement-50 or vice versa if anyone can help me with some algebra work it would be greatly appreciated i am im algebra 1 and still on the second quarter and have until november
  51. Math

    Posted by Lance on Friday, April 27, 2007 at 9:47pm in response to math. please give us one set of numbers so we can work an example for you. What was the percentage increase in motor vehicle production in countries outside the United States from 1950 –
  52. social studies

    Why should the 3 R's be rehabilitated? Thank you for using the Jiskha Homework Help Forum. If, by the 3 R's, you mean "Reading, Riting, Rithmetic" you would be illiterate without them. Aside from their being so much enjoyment in reading, what would happen
  53. Physics

    I have to make up my own standardized questions for a project, and I wanted to make sure I did my math right. Can someone please check it? Thanks!! If your mass was 60 kg, the earth’s mass was 6×10^24 kg, the radius of the earth was 6.4×10^6 meters,
  54. Math

    Hi, would someone mind just checking the answer I got for this formula and tell me if I'm on the right track or not. Question... x+y=21 3x=4y Answer I got... x=84 y= -63 I didn't get that. Check your math. I found 7y=63 but not y = 63. You can always check
  55. Geometry

    A satellite in a nearly circular orbit is 2000 km above Earth's surface. The radius of Earth is approximately 6400 km. If the satellite completes its orbit in 112 hours, calculate the speed of the satellite in kilometers per hour. Please help me. I have a
  56. math test

    Hi! I have a math test coming up tomorrow, and I need to prepare. but,i don't know how I should. . . any help would be great. she told us to: Be prepared to identify and explain functions, linear functions and proportional functions. Be prepared to use the
  57. English

    A: (Are) (you) (doing) your homework? [3 points] B: Yes, I am. I'm doing math homework. 1. (You) (are) (doing) your homework? =========================== There are three blanks in the first sentence. Students are asked to fill in the blanks with suitable
  58. Math

    Eli's Dad made him a birthday cake, but forgot to buy candles. He could only find a few. But Eli was smart in math, so his Dad said "The ratio of candles to years is 3 to 5" That gave him the right number. How old was Eli? I am very confused on how to even
  59. Math help

    here's the question Dear Dr. Math, I wanted tto find the area of this hexagon. I few the apothem as I've shown. Then I measured the apothem and perimeter. I used the formula a=1/2ap and got 3.2cm^2 for the area but that seems way too small for me. I think
  60. Math

    Math - Cindy, Tuesday, April 29, 2014 at 8:44pm At Bobs diner, it costs $8.00 to purchase two hamburgers and one order of fries. The "family pack" costs 30.00 and comes with six hamburgers and six orders of fries. If the prices are constant,how much does
  61. math

    I suggest you Google each of these people. You can search for the name bio Or you can search for the name height weight. for math i have to do a graph of some sort, so i chose to do a graph of famous ppls heights and weights, so i was wondering do you know
  62. Math

    Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
  63. math

    solve the compound inequalities as demostrated being careful of how a negative x- term is handled in the solving process show all math work arriving at the solutions display a simple line qraph for each solution set as demostrated. -119 (your or Copmound
  64. Pharmacy

    when a generic form of drug is prescibed, which of the following must be included on the label? a. generic form name and expiration date b. generic form name and the brand name c. generic form name and the prescriber d. generic form name and the patient's
  65. Anne Frank (another question :/)

    How is Edith Frank different from her husband in Anne's eyes? A. Edith is more caring and generous than her husband. B. Edith is not as religious as her husband. C. Edith is more cold and crude than her husband. D. Edith is lazier and less helpful than her
  66. Algebra

    5. Find the x and y intercepts of each linear equation. Be sure to write your answers as ordered pairs. y = 3x - 6 6y = -x + 2 The y intercepts is when x=0 So put in x=0 in each, and solve for y. The x intercepts is when y=0, put in y=0 and solve for x. I
  67. SAT

    is there any helpful practice sat tests online other than the college board? i'm taking the test this saturday and i don't feel like i'm ready for it. i have studied the SAT prep book that i have, as much as i can. i especially need help in the math and
  68. Calculus - Integrals

    I know I've probably flooded the site or something (Sorry if I have), it's just that these problems aren't similar to anything I've reviewed in class. I've got two more questions, then maybe 1 or 2 more coming. That's all I can see in the future, anyhow.
  69. Physcial Science

    How can I apply Newton's First and Second Law to walking? I'm thinking the 1st, is the muscles would apply an unblanced force to make us move? Second-if we're walking and the mass of our body is 130 lbs and we're accelerating at 4 miles per hour, then the
  70. Physics

    Two cars lost in a blinding snowstorm are traveling across a large field, each thinking they are on the road, as shown in the figure on the left. They collide. If the distance x is 141 meters and the red car is travelling at 19.5 mph, how fast to the
  71. AP Gov't

    reasons congress should be reformed. Are you asking about the personal scandals? campaign financing? forbidding filibustering? Please post your answers -- and we'll be glad to critique them. just in general. i was thinking more along the lines of the
  72. English

    Hi, I have to write a short reaction paper (2 pages) about the book America is in the Hearth by Carlos Bulosan. I have to discuss an important theme and provide examples. I was thinking about comparing his life in the Philippines and his life in America.
  73. English ms. sue

    ms. sue I doing project on catcher in the rye book, and could you please tell me what this quote means? what do it tell about Holden? Take most people, they're crazy about cars. They worry if they get a little scratch on them, and they're always talking
  74. English

    I have to write an outline on The Sun Also Rises by Ernest Hemingway, and I can't seem to find an appropriate thesis statement for such a paper. I was hoping someone could help me. I was thinking something along the lines of: In The Sun Also Rises,
  75. social studies

    In Medieval Europe areas like England, France, the Papal States, the Holy Roman Empire, and the Byzantine Empire had a different leader. Why do you think Europe had no single government during the Middle Ages? So I was kind of thinking that maybe it was
  76. N&W

    i have to write a research paper on Diet and Nutrition my thesis statement is, Diet and diabetes are very strongly connected to each other because out of the many aspects we can explore about diabetes diet is the major weapon against this chronic disease.
  77. Health

    At allendale psychiatric hospital, the hospital census on january 4 is 110. according to the following data, whats the hospital census for january 5? admissions - 10 discharges - 2 a & d - 1 A. 99 B. 100 C. 108 D. 118 i am thinking that the answer is C but
  78. please help idin't get it

    5.imagine you are at the beach on a very hot day. you walk toward the water. the sand is eextremly hot. when you reach the water, you find that the water is much cooler than sand. b)predict what the air temprature would be relative to the sand and water
  79. Psychology

    The impact of drug x on fertility rates in young women A.Potentially rendering young women unable to have children B.Potential birth defects if the women should become pregnant during the study C.Exposing young women to an untested drug D.There is no
  80. Chemistry

    Explain the significance of positive and negative values for each thermodynamic quantity in the free energy equation. (enthalpy change, entropy change, and free energy change) I think this is something you can find in your text/notes. If not, explain what
  81. writing

    Describe a time when your moral values influenced the way you responded to an issue. What differences did you notice between your logical reasoning process and your moral reasoning process? What were the possible consequences or outcomes of your decision?
  82. math

    The mean score on a Math exam was 50% and the standard deviation was 10%. Assume the results were normally distributed. (a) What percent of students earned a score between 50% and 70%? (b) If 60 students took the exam, how many got a score between 50% and
  83. Math

    On a math test,12 students earned an A. This number is exactly 25% of the total number of students in the class. How many students are in the class? 'In this problem I'm not sure whether I'm being asked to solve for one or two unknowns. May I have your
  84. math

    If a man drove 3.5 miles to a gas station and on the way home drove 2 times that +.7 miles,how many miles did he drive?? 3.5 + 2 times 3.5 + .7 = what Do the math. 17.5 omg ur so smart...
  85. sociology

    what are some ways in which American society is stratified? Please tell us your thinking about this answer and we'll be glad to critque it. Think -- money, power, race, gender I searched Google under the key words "social stratification" to get these
  86. Halloween Project for school

    So for my school we are having a contest/party, and the best dressed will receive an A, and a week of no homework. The students will vote. The catch is, it has to be mainly made with things at home, yes we can use clothes. But things like yarn, or spray
  87. science

    what are the impacts on fishing and hunting in antarctica i need answers fast thanx We will be happy to critique your thinking. Antarctica is a very delicate ecosystem: the removal of one item affects many, and you could cite examples of this. Why do you
  88. physics

    A novice pilot sets a plane's controls, thinking the plane will fly at 2.50 * 2 to the 2nd power km/h to the north. if the wind blows at 75km/h toward the southeast, what will the plane's new resultant velocity be? use graphical techniques. Are you sure
  89. Academic Writing II

    Please, somebody help me. I need 3 traits on Robert Frost's writing and I'm clueless. I don't even like his poems, and I'm supposed to write a 3-paragraph paper on him. So far, I'm thinking 'He likes to write with humor' and 'He likes to use metaphors'. I
  90. english

    Can anyone tell me if this is correct please? My answers are on the line before the statements. Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified on the top line before the statement then select the
  91. Science

    What is the length of an aluminum rod at 65 C if its length at 15 C is 1.2 meters? I will be happy to critique your thinking. New length= oldlength(1+alpha*(65-15)) where alpha is the coefficent of linear expansion of aluminum 1.201386 meters
  92. program eval

    If I were doing an evaluation of an existing after-school program where involvement was voluntary, would I do a quasi-experimental design or experimental design? I'm thinking quasi-experimental as I would randomly select from those who are enrolled in the
  93. Physics

    The acceleration due to gravity on a planet other than the earth has a magnitude of 1.50 m/s2. As in examples 6, 7 and 8, a placekicker kicks a football with an initial speed of 20.3 m/s at an angle of 39.4 ° above horizontal. Assume that the ball is
  94. statistics

    do students who learned English as well as another language simultaneously score worse on the SAT critical reading exam than the general population of test takers? the mean score di 501. A random sample of 100 test takers who learned English as another
  95. Math

    Marta is thinking of a number. The prime factorization of the number is the first eight primes, each used as a factor exactly one. Write the prime factorization and the number.
  96. Vectors/Scalars?

    is (u dot v)dot (a dot c) a scalar quantity or vector quantity? What's the difference? (I'm thinking scalar since it has no direction and it only has magnitude.)
  97. Math

    Im thinking of a two-digit number. It is a prime number which is 3 less than a perfect square. Also, when it's digits are reversed, it becomes a perfect square. What is the one possible number?
  98. College Chemistry

    How many orbitals have the following quantum numbers: n=6, l=2, ml=-2?? a. 0, b. 5, c. 7, d. 10, e.6 Since only one can include n=6 in its equation would it make it just one orbital having those numbers? im also thinking that there might be other orbitals
  99. algebra 2

    solve: 3+2(1-x)>6 i got -11/2 no Here is what I got: 3+2(1-x)>6 3 + 2 - 2x > 6 -2x > 1 x < -1/2 what about the 3+2? i have to graph the solution set on a number line. What about the 3+2 ???? What a strange question re this problem What level of math are
  100. Math check my answers

    1. Evaluate. 8d - 10 for d = 4 A.32 B.22*** C.26 D.46 2. write an algebraic expression for the sum of 3 coins and c coins. A.c + 3*** B.c/3 C.3c D.c-3 3. Find the solution of the equation from the given numbers. x - 2 =16: 14, 18, 21, or 12 A.12 B.14