Algebra, help + check please

58,005 results, page 86
  1. Calc

    Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function and the tangent line you found to see whether it looks correct. (1/x^3 -x)^2 at x= 2
  2. math - check plz

    She has 2 to the 10th power of fruit flies in each of 2 to the 2nd power. How many fruit flies does she have in all? (answer as power) 2to the 11th power?
  3. math help and check

    Consider the following. (Give your answers correct to two decimal places.) (a) Determine the value of the confidence coefficient z(á/2) for 1 - á = 0.87. .44 my answer (b) Determine the value of the confidence coefficient z(á/2) for 1 - á = 0.91. .45
  4. Trig(Last 6 questions to check. Thanks to EVERYONE

    Find the amplitude, if it exists, and the period of: y=cos3x. |a|=|1| amplitude = 1 period = 360/b period = 360/3 period = 120 degrees
  5. English

    Thank you very much. I need you to check these sentences. 1) My father took a day off work (not a day off from work) to take me to the seaside. 2) They took 20% off (not "from") the list price. 3) He let the students off with an warning. He let off the
  6. math

    A graph is given with the line going from (-2, 2) to (2,8). a) Find the length of this line. b) Find the midpoint of the line. c) write an equation for this line. my answers- a) 2√10 b) 0,5 c) y = 1.5x + 5 please check these answers.
  7. Sequence

    Find the common difference and a formula formula for the nth term of the arithmetic sequence; 6, 2, -2, -6, -10,...a sub n = a)6-4n b)6-2n c)10-2n d)10-4n I think it is c but want to check. Ao is 10, then each term subtracts 4n from it....n=1, ... well if
  8. Punctuating Sentences check please

    The rainbow stretched across the sky from the ice cream truck to the house down the lane. Between the sixth and seventh floors of the building in the stairwell over in the corner. Punctuating Sentences I am not sure if I did them correctily would someone

    Check my answers? According to the Articles of Confederation, the Anglican (Episcopal) Church would be the official church of the USA. False The Articles of Confederation left no powers to the states. False George Washington was nearly captured as his
  10. another please help me check~calculus maths

    y=3e^(2x)cos(2x-3) verify that d^2y/dx^2-4dy/dx+8y=0 plz help me i tried all i could but it become too complicated for me here set u=3e^(2x) v=cos(2x-3) du/dx=6e^(2x) i used chain rule dv/dx=-2sin(2x-3) dy/dx=-3e^(2x)sin(2x-3)+cos(2x-3)6e^(2x) d^2y/dx^2
  11. Agility training

    Please check my answer thanks :) Why is time-plus-faults scoring used for a Steeplechase event? A. It's the only method that penalizes for mistakes. B. Both emphasize the speed of the dogs. C. The other two scoring methods are for Standard Classes only. D.
  12. English

    1. Which one is bigger, Seodo or Dongdo? -Seodo is bigger than Dongdo. 2. What do you want to do on Dokdo? - I want to shake hands with a police officer there. - I want to take as many pictures as possible. - I want to go to the top of Dongdo to look at
  13. Health

    What is a common result in teen alcohol use? A. better test scores after drinking B. improved judgment skills C. long term memory problems D. quicker reflexes while driving a car My answer is C. long term memory problems. Ms. Sue may you please check
  14. English

    Please check for any errors. If there are some errors please correct them for me. When you were in my office last Tuesday, you stated that you wanted to alter your will to include two additional heirs. I have now prepared a will in compliance with your
  15. Math

    Math Problem: Find the area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth. Would someone please check the way I worked this and let me know if I did it correct or not? Thank You A=3.14 (14ft)2 A=3.14 (196) A=615.44 Im

    Please check for any errors. If there are some errors please correct them for me. When you were in my office last Tuesday, you stated that you wanted to alter your will to include two additional heirs. I have now prepared a will in compliance with your
  17. social studies (check plz)

    Which statement best describes the government of Canada? The monarch of Britain has total control over Canada. The Canadian parliament is ruled by the United States. Canada has complete power over its own government(MY ANSWER) The prime minister is the
  18. English

    Can you check if everything is correct? 1) Pogo jumped onto a table near the window and knocked over (which synonyms are possible? overturned, tipped over, bowled over, tumped over?) the clock. 2) The clock went through the window, landed on the roof of
  19. Spanish-8th Grade-Please check

    I have a question about the owrd cubiertos in Spanish. Does ths word include la servillete el cuchillo el vaso la cuchara el tendor OR is it just like the plate and spoon, fork, knife and NOT the vaso or servillete(napkin)? The word and transaltion is

    Please check for any errors. If there are some errors please correct them for me. When you were in my office last Tuesday, you stated that you wanted to alter your will to include two additional heirs. I have now prepared a will in compliance with your
  21. Technology

    Please check this for me: 5. The freezing point of water on the Celsius temperature scale is a. 0 degrees b. 32 degrees c. 100 degrees d. 212 degrees A 8. A measurement for a rectangular box is given as 150 cubic inches. This measurement indicates the
  22. English

    2. Take a look at this rock in this picture. It looks like an elephant drinking water. What is this one called? - It is called elephant Rock. 3. This is a postbox, which is below/under the marker. People can send letters to the residents and police
  23. social studies-HISTORY

    information on ajanta caves-physical environment,ways to protect,need to protect Please check these various links (except the first one, yours) to find previous answers to this question. =)
  24. Chemistry(Please check)

    For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system was charged to give these initial concentrations, (SO3) = 0.254 M and (O2) = 0.00855 M, and (SO2) = 0.500 M. In which direction
  25. Chemistry

    Please check my work- what is the molarity of a solution that has 34.85 g of Potassium sulfate dissolved in one liter of solution? so K2(SO4) molar mass is 174.26, 34.85 grams x 1mol/174.26 than divided by 1 Liter equals .19998 Molarity with sig figs would
  26. Chemistry

    Can anyone help and check my answers? A. 8.43 cm to millimeters--- 84.3 millimeters. B. 2.41x10^2 cm to meterss--- 0.0241 meters. C. 294.5 nm to centimeters--- I don't know how to concert this. D. 1.445x10^4 m to kilometers--- 0.001443 Kilometers. E. 235.3
  27. Law (Check)

    (TCO 6) A director of a corporation does NOT have a duty to: A)act diligently and in good faith in conducting corporate business. B)act resourcefully and always make the best business judgment. C)act on behalf of the beneficiary with great integrity. D)act
  28. Precalculus

    The light pattern from a fog light at the airport can be modeled by the equation x^2/4 - y^2/16=1. One of the points on the graph is at (3, 4.5) and one of the x-intercepts is -2. Find the coordinates of the three addditional points on the graph and the
  29. Philosophy Question

    Who are some famous Mexican philosophers? Check this site for a list of some of Mexico's philosophers. Ah, most of these guys are white. I want some real latino philosophers, please. What does skin
  30. English

    Songpyeon is a traditional Korean food. Koreans usually eat it on Chuseok, the Korean Thanksgiving Day. Songpyeon is made with rice, chestnut paste, and sesame seeds or beans. It is tasty.Therefore, we Koreans like this food very much. (Would you check the
  31. social studies

    Which of the following actions is a check by the legislative branch on the actions of the executive branch? 1. The Congress overrides a presidential veto. 2. Senators are elected every six years. 3. Representatives of Congress have limits on campaign
  32. conclusions - check answer

    Which of the following is a true statement about writing introductions of rough drafts? A. Do not worry about the central point of your essay; it will happen later on as you revise your paper. (MY ANSWER) B. Pay close attention to the correct spelling of
  33. geography

    1. What country is due south of Egypt? Sudan 2. Is Phnom Penh or Hanoi the capital of Vietnam? Hanoi 3. Besides the Soviet Union, what other country borders the world's largest lake? Iran 4. What river runs west to east across the northern part of Italy?
  34. Liberal arts

    Which terms and 45p4q have a GCF of 9p3? Check all that apply. *18p3r x27p4q x36p3q6 *63p3 x72p3q6 The ones with the stars next to them are the correct ones and the ones with the x next to them are the wrong ones. Does answer choice A make any sense to any
  35. geography

    I am pretty sure my answers are correct, but can you double check? 1.What capital city is near 40 degrees N latitude and 83 degrees W longitude? Columbus, Ohio 2. Which area has the higher elevation, eastern or western Brazil? western Brazil 3. What
  36. Physics/Math

    A displacement vector r in the xy plane is 6 m long and directed at angle [Theta] = 36°. Determine the x and y components of the vector. _____ m (x component) _____ m (y component) I will be happy to check your answers, or critique your thinking. We don't
  37. Maths

    I need to solve these anagrams of famous mathematitions PHRYGATOAS ADSHERECMI TFMARE GABBEBA COBFIICAN GHETGNINLAI LUDECI PRANIE LLCAOVEE The first one is PYTHAGORAS. For names of other famous mathematicians, check this site:
  38. Chemistry

    I would like to check my answer to the following question: The permanganate ion oxidizes bromide in acidic conditions to form bromine, manganese(II) ion and water. Give the balanced equation of the reaction. My answer: 3e- + 8H+ (aq) + MnO4- (aq) + 2Br-
  39. Social Studies Please Check Answer

    Why did the US most likely offer economic aid to Russia and Eastern Europe during the 1990s? A) to encourage them to break ways from the Soviet Union B) to politically dominate new governments in the region C) to help stable democratic governments emerge
  40. Geography

    Identify any references to volcanoes, earthquakes, or the relationship of humans to these forces of nature in the Klickitat legend. please help...thanks Look at the last story at this site: Then
  41. Social studies***help***

    please check my answers 1.A 2.D 1.Which of he following is the greatest threat to the island's resources? (central american and the caribbean) i included that because i think that is the islands. A.biodiversity B.hurricanes C.deforestation D.ecotourism
  42. Health of young children

    Which of the following statements regarding exclusion policies is true? A.They prevent illness and infection in centers B.They're necessary only when there's threat of serious illness C.They protect care providers against charges of negligence D. They
  43. Programming Concepts

    Can someone please explain to me how I can get the solution for this question. Use the top-down modular approach and pseudocode to design a suitable program to help you solve this problem. Whenever appropriate,validate the input data. Find the sum of the
  44. American Democracy

    Multiple choice Q The presidents constitutional roles,such as chief executive and commander-in-chief: A> are bassed on very precise constitutional grants of power B> are rooted in tradition only;they have no basis in the language of the constitution
  45. Algebra

    Algebra Word Problems: 1. The length of the floor of a one-storey building is 14 feet longer than its width. The building has 1,632 square feet of floor space. Write a quadratic equation for the area of the floor in terms of w. Find the length and width of
  46. Physics repost please check

    Posted by Mary on Monday, November 5, 2007 at 8:19pm. A charged particle, passing through a certain region of space, has a velocity whose magnitude and direction remain constant. (a) If it is known that the external magnetic field is zero everywhere in
  47. Math

    Mr. R has some money to buy oranges, if he will buy 15 oranges he will need $90 more, if he will buy 10 oranges he will have $60 left. how much money has mr. R? Please kindly solve this using George Polya method.. guess and check...
  48. English

    Check the correct information on Ms. Kim's note. (What does 'on Ms. Kim's note' modify? What is the part of speech of "Ms. Kim's note"? An adverbial phrase or an adjective phrase?)
  49. Word problem check

    one summer, Van mowed 4 lawns for every 7 lawns mowed by Fiona. Together they mowed 132 lawns. How many did Fiona mow? I have the answer as 84 is that correct?
  50. English

    1. What are your opening hours? 2. When are your opening hours? 3. What is your opening hours? 4. When doe the museum open? 5. We are closed on Mondays? (Would you check the sentences? Are all OK? What is the part of speech of 'closed'?)
  51. math

    is this correct? 6k-9=15 k=4 I just want to know if i did it right yes you are correct You didn't show your work so I don't know if you did it right or not. Your answer is correct. i did 9=15 which equal 24 and i divided that by 6 which =4 so k must equal
  52. Probability

    After an exam, a teacher starts checking student attempts. Based on the marks he gives, he also awards a letter grade from any of the 5 letter grades; A, B, C, D, and F. How many papers on average should he expect to check to see all 5 grades awarded? At
  53. English

    1. We watched TV for two hours. 2. We watched TV at night/ at the shop. 3. We watched (or have watched) TV by the time he arrived. 4. We watched (or have watched) TV by 7 p.m. 5. We watched TV by day. 6. We watched TV by the table. 7. We have watched TV
  54. Setting up a chem problem

    Magnesium reacts with water in the equation, Mg+2H²O-->Mg(OH)²+H². You have 8.1 g of magnesium available. This means you will need ___ g of water to use all the magnesium. This seems sorta simple, but how can i set it up? These are stoichiometry
  55. Math Please check

    (1/8)17n x 8 I got: 17n/8 x 8= 17n not sure about this??
  56. Algebra 1

    Myrna spent $21.95 on treats to put in Gift of Love boxes for the needy children in her city. A candy bar coasts $0.80 and a bag of trail mix costs $0.65. Myrna bought 7 more candy bags of trail mix than candy bars. How many candy bars did she buy? The
  57. Physics Check

    A ball is rolling across the top of a billiard table and slowly rolls to a stop. How would Galileo explain the motion of the ball as it stopped? a)The ball's natural state is at rest =b)The ball stopped because it ceased to be pushed c)The ball stopped due
  58. social studies(CHECK ASNWERS)

    please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key
  59. social studies (CHECK ASNWERS)

    please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key
  60. Physics repost please check

    A lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.280 kg, and its center of gravity is located at its geometrical center. On the tray is a 1.00 kg plate of food and a 0.210 kg cup of coffee. Obtain the
  61. Grammar and Composition

    please check these: 1. adamant _e_ 2. pathetic _g_ 3. tangible _j_ 4. auspicious _i?_ 5. altruistic _a_ 6. flippant _c_ 7. incorrigible _h_ 8. indolent _d_ 9. precarious _b_ 10. implicit _i?_ a. unselfish b. uncertain c. impudent d. lazy e. unyielding f.
  62. Foreign languages

    Could you please check these sentences? Thank you,Writeacher. 1) In the first part if the novel she writes letters to her parents asking them for advice. However, she resists all her master's advances protecting virtue. 2) As a reward, he proposes marriage
  63. English

    Could you check this exercise, I had to complete the text. I wrote my answer with capital letters. Thanks so much When I first met Steve, our senior manager, he seemed to me rather PATIENLY and somewhat DECISIVE especially when it was necessary to take
  64. Chemistry

    Hydrogen peroxide is used as a bleachin agent, a disinfectant and medicinally as a topical antibacterial agent. Hydrogen peroxide decomposes according to the reacton 2H^2O^2(l)-->2H^2O(l)+o^2(g) A. Given the standard free energy of formation values
  65. English

    Was Macbeth to blame for his own tragedy in Macbeth? There are two possibilities Macbeth or Lady macbeth. Or the Witches. He conceived the plot, and when he became spinless, Lady goaded him on. He was responsbile. Check my thinking. Others will disagree. I
  66. chemistry/please double check

    Hi, I just need to know if I finally got this exercise right. Calculate the amount of heat in kilojoules released when 50 grams of steam at 125 Celsius are converted to 50 grams of ice at -125 Celsius. so, qw= 50*4.184J/g C (125 C-o)= 26.15 x 10^3 qi=
  67. Math

    Check And Help? 1. √x-10+4=0 Answer: x=26 2.√3x+1=7 Answer: x=16 Help With These: 3. √x+6=x how would you solve this? I don't get how would It? 4. √x+4 = √x-1+1 it looks similar to problem 2 but it doesn't quite have the same
  68. American History

    If at all possible can some one please check my answers? Thank you in advance for you assistance. Which of the following statements about the Southern planter's world is most accurate? My answer: B. Most great planters of the Old South were self-made men.
  69. physics

    please check my answers and help me with the first one. how can you charge an object negatively with only the help of a positively charged object? -This one I am not too sure, when one material is rubbed against another electrons jump readily from one to
  70. Science check answers

    1. Which of the following explains how natural selection leads to evolution? Conditions in the environment reduce competition for resources within a species Helpful variations accumulate among surviving members of the species*** Overproduction provides
  71. geography

    1. Cape Agulhas is the southernmost point on what continent? Africa 2. What capital city is near 20 degrees N latitude and 100 degrees W longitude? Mexico City 3. Would you probably find a scale of 1-inch equals 1,500 miles on a map of your city, state or
  72. English

    Classes have also started at music school now. I go twice a week for piano. I'm continuing my tennis lessons. Oh yes, I've been moved up to the "older" group in tennis. Wednesdays I go to Auntie Mike's for English lessons. Tuesdays I have choir practice.
  73. School-Age Children

    Melissa plays with the same four girls everyday.She has a lot of energy, is independent, and is concerned about what her friends think. Melissa likes soccer and baseball and takes pleasure in beating the boy's team.Melissa is most likely to be A.3-5
  74. Please CHeck my French

    Chère Mme Guerit J'ai mal à la gorge. Je ne mange rien. J'ai une mauvaise mine et je suis fatiguée aussi. Je dois prendre un médicament. Dois-je appeler un docteur? Qu'est-ce que je dois faire pour avoir une bonne mine?
  75. dog behavior

    please check my answer thanks Latent learning becomes evident when A. a puppy grows up B. the animal is motivated to perform C a dog has failed with the trial-and-error method D. a dog experiences social facilitation I picked A because latent learning
  76. English

    1. What are the synonyms of delicious? -They are yummy and tastey. 2. What is the antonym of delicious? - It is tasteless. ------------------------- Q1: Are the questions and answers correct? Q2: Do you have other common opposites of 'delicious' other than
  77. math inequalities please check

    A landscape designer has to design a rectangular pad of concrete at the centre of a rock garden. The lenght must be less than or equal to twice the width; the perimeter must be less than or equal to 40 m; and the area must be greater than or equal to 60
  78. geography

    Can you check my answers please? 1.In what hemispheres is Africa located? Northern, Southern, Eastern, and Western 2. What is the easternmost state in the 48 contiguous states? Maine 3. What is the capital of the southernmost country in Africa? Pretoria,
  79. dog behavior

    please check my answers thanks so much What is the purpose of having an assistant hold a dog while you're teaching it the longline recall command? A. To prevent the dog from coming to you until it's very eager B. To make sure the dog remains in the sit
  80. Chemistry

    Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s. 4NH3 + 7O2 --> 4NO2 + 6H2O 1)How many grams of oxygen are necessary to produce 4.50 moles of
  81. Early Childhood

    Rosa is a newborn. As she grows, which will she learn to control last? A. Her fingers B. Her hands C. Her arms D. Her head Need help!! I put A but I'm not for sure. A preschool child can be designated a reader when he or she: A. writes a word. B. sounds
  82. social studies

    what belief is the principle of popular sovereignty based upon? A. government must be run by officials who are appointed to office by their predecessors B. government gets its power from the people and can exist only with their consent C. people have
  83. behavior problems(dogs)

    please check my answer thanks Ideally, when working on a behavior problem, you'll show the owners ways to A. reorganize the environment so the dog has fewer chances to misbehave. B. discipline a dog correctly and not spoil him. C. teach some commands that
  84. Java programming

    I have hard time doing this any help? Rewrite the definition of the method setdate and the constructor with parameters so that the values of month, day, and year are checked before storing the date into the data members. Add a method isleapyear to check
  85. english

    Could anybody check my English essays? I'm looking for native English teacher who is willing to help me with improving my written language. For achieving this goal I'm going to write rather long essays on humanitarian subjects. I don't need lengthy
  86. social studies(check answers)

    please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key
  87. algebra 1

    simplify 16^3/2
  88. Algebra

    2x-5y= -3 2x+5y=4 y=mx+b -3 = 2x - 5y -2x -2x x = 5y y=mx+b 4 = 2x+5y -2x -2x 2x = 5y Is this correct?
  89. algebra 1

    how would i simplfy 16^3/2
  90. algebra

  91. algebra

    solve. 6-3(3x-5)=-6
  92. Algebra

    I have no clue can someone help me? 4+2/x / x/4+1/8
  93. algebra

    how do you solve 2(2^2x)-5(2^x)+2=0 for x
  94. algebra

    which is bigger 5/11 or 7/8
  95. Algebra 1

    If g(x) = x^2+2x, find g(a - 1)
  96. Algebra 1

    2*10/5+6=10. Is this correct?
  97. Algebra 1

    what is 3 less than 4 times a?
  98. algebra

    LCM of 14, 40, and 36
  99. algebra

    what are the intercepts of y=2x+2
  100. algebra 1

    Divide x^2+3x-18 by x-3