Calculus (Answer Check)

88,172 results, page 63

  1. Calculus

    The hypotenuse of a right triangle has one end at the origin and one end on the curve y=x^(7)e^(-7x) , with x greater than or equal to 0. One of the other two sides is on the x-axis, the other side is parallel to the y-axis. Find the maximum area of such a triangle. Round your...
  2. grammar

    Can someone please check my work? Thank you. Which of the style guides is most focused on professionals who are writing articles for publication? MLA APA Chicago (my choice Which of the style guides no longer recommends citing URLs? MLA APA (my choice) Chicago Are you ...
  3. Purchasing Power of Income/ Economy

    We use the _________ to determine the purchasing power of income. A. Interest rate. B. Real GDP. C. CPI. D. GDP. E. None of the above. Check this site for your answer. http://www.bls.gov/cpi/
  4. Calculus

    If 6 J of work is needed to stretch a spring from 10cm to 12 cm and another 10 J is needed to stretch it from 12 cm to 14cm, what is the natural length of the spring? This is a physics problem as much as a calculus one. Solve for the spring constant k first, then determine ...
  5. Calculus

    1)A north south highway, intersects an east west highway, at point P. A vehicle process point P @ 1pm, traveling east at a constant speed of 60km/h. At the same instant another vehiclist 5km north of P, travelling south at 80km/h, find the time, when the 2 vehicles are closest...
  6. Physics-Please check my answer-I've been working o

    If I went tubing with my little sister, and I have a larger mass, why would we both reach, in terms of energy, the bottom of the hill at the same time; Originally I thought because we would both be accerlerating at the same rate but that doesn't explain the energy part does it...
  7. Chemistry

    What is the net ionic equation when H2SO4 is neutralized by NaOH in aqueous solution? Write the molecular equation. H2SO4 + 2NaOH ==> Na2SO4 + 2H2O Convert to ions. 2H^+ + SO4^= + 2Na^+ + 2 OH^- ==> 2Na^+ + SO4^= + 2H2O Now cancel those ions that appear on both sides of ...
  8. calculus

    Suppose the function G(t) represents a test grade (out of 100 points) as a function of hours studied. If G(t)=-0.046t^3+0.915t^2+38.005 points, what is (dG/dt)when t=4? Round your answer to the nearest point per hour. a. 50 points per hour b. 3 points per hour c. 5 points per ...
  9. Help!!

    What was the main concern for Anti-Federalists in passing the US Constitution as written after the Connecticut compromise? please someone tell me good site and please tell me how can I answer it, Check this site. http://en.wikipedia.org/wiki/Anti-Federalism
  10. English Check answers

    Identify the number of independent and subordinate clauses in the following group of words. When Janine does volunteer work, she feels a sense of joy and fulfillment A. one independent clause only B. one independent clause and one subordinate clause (MY ANSWER) C. one ...
  11. computers (Check)

    Will someone please check my C++ for me? 1. What does the Load ( ) method do? Gets data from a file and puts it into a DataSet object. <----- Gives a value to an attribute of an XmlElement object. Deletes all the data in a DataSet object. Tells a form to appear. 2. Scenario...
  12. More related rates.

    Heyy, its me again. So last night I asked a related rate question, and I think I still don't get it. I tried it a few differnt ways and I think I'm just missing something...I don't think a speed of a rocket can be 0.018km/hr:S. So heres what happened: A camera, located 2 km ...
  13. Health/Law

    Please check my answer thanks :) Judgement has been entered against Sue in the Eastern District Court of Kentucky . Which of the following must be true for the judgement to be valid against her personally ? 1. She was a redsident of KY 2. The court had subject matter ...
  14. Physics 11U

    At the moment when a shot putter releases a 5.00 kg shot, the shot is 2.00 m above the ground and travelling at 15.0 m/s. It reaches a maximum height of 8.0 m above the ground and then falls to the ground. Assume air resistance is negligible. a) What was the velocity of the ...
  15. English

    Are the following sentences possible? Thank you very much. 1) He shot me in the leg. 2) He showed me the way to the supermarket. 3) He likes shooting. 4) He shouted at him. 5) I always show my gift card to the check-out clerk so that I can get a discount on what I buy. 6)When ...
  16. Calculus

    Find the exact area of the region enclosed by the square root of (x) + the square root of (y) is = 1; x = 0 and y = 0. I moved the first equation around to get: y = [1- the square root of (x) ] ^2 Unfortunately, this gives me bounds from 1 to 1. So I'm stuck with: integral ...
  17. calculus

    Rolle's theorem cannot be applied to the function f(x) = x1/3 on the interval [–1, 1] because Answer Choices: f is not differentiable on the interval [–1, 1] f(–1) ≠ f(1) f is not differentiable on the interval [–1, 1] and f(–1) ≠ f(1) Rolle's theorem can be ...
  18. Algebra

    this isn't the same question as my last post!! it's the second out of three. Hello! I'm looking over one of my tests and trying to see how to do things I got wrong, but I'm having trouble with three of the questions. Here's one of them: Find the simplified form of the equation...
  19. calculus

    at a certain instant the base of a triangle is 5 inches and is increasing at the rate of 1 inch per minute. At the same instant, the height is 10 inches and is decreasing at the rate of 2.5 inches per minute. Is the area of the triangle increasing or decreasing? justify you ...
  20. Calculus

    The base of a solid is the region bounded by the lines y = 5x, y = 10, and x = 0. Answer the following. a) Find the volume if the solid has cross sections perpendicular to the y-axis that are semicircles. b) Find the volume if the solid has cross sections perpendicular to the ...
  21. Chemistry(Please check)

    Which of the following equations correspond to the Ka2 for phosphoric acid? note: the double equal sign (==) means equilibrium. a) HPO42- (aq) + H2O (l) == H3O+(aq) + PO43-(aq) b) PO43- (aq) + H2O (l) == HPO42-(aq) + OH–(aq) c) H3PO4 (aq) + H2O (l) == H3O+(aq) + H2PO4-(aq) d...
  22. Physical Science

    Please check my answer!! I would be great if you could explain this to me a little as well... To find the amplitude, measure_____ a. the horizontal distance between consecutive positions b. the horizontal distance between a consecutive crest and trough c. vertical distance ...
  23. Calculus (please help!!!)

    Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization tracing ...
  24. english(check 1answer)

    which is a fact rather than a opinion? A.her voice was tired and low,and i am forever mopping up puddles left by the snow you and the boys track into the house. B.wilsons mother shook her head and picked up the mop again. C.the town,located in the snowbelt often receives 120 ...
  25. Physics

    A wheel with rotational inertia I is mounted on a fixed, fricitonless axle. The angular speed w of the wheel is inccreased from zero to w_f in a time interval T. 1: What is the average net torque on the wheel during the time interval, T? a) w_f/T b)w_f/T^2 c) Iw_f^2/T d)Iw_f/T...
  26. Calculus

    A baseball team plays in a stadium that holds 53,000 spectators. With ticket prices at $10, the average attendance had been 49,000. When ticket prices were lowered to $8, the average attendance rose to 51,000. (a) Find the demand function (price p as a function of attendance x...
  27. English

    Can you please check if my answers are correct? 1.)The pupil had not(brang, brought) the homework. Answer: The pupil had not brought the homework. 2.) Has the choir ever(sung,sang) that tune? Answer: Has the choir ever sung that tune? 3.) The seamstress should have (broughten...
  28. Pre-Calculus

    The formula D= 5e ^-0.4h can be used to find the number of milligrams D of a certain drug that is in a patient's bloodstream h hours after the drug has been administered. When the number of milligrams reaches 2, the drug is to be administered again. WHat is the time between ...
  29. Calculus

    Gloria would like to construct a box with volume of exactly 45ft^3 using only metal and wood. The metal costs $15/ft^2 and the wood costs $6/ft^2. If the wood is to go on the sides, the metal is to go on the top and bottom, and if the length of the base is to be 3 times the ...
  30. differantiation

    Determine dy/dx if: (i) Y= sqrt x^sqrt x (ii) Y= xarcsin(x) + sqrt(1-x) Please show all steps. Thanks 1) http://www.analyzemath.com/calculus/Differentiation/first_derivative.html 2) an antiderivative of arcsin(x) is xarcsin(x)-sqrt(1-x^2); are you certain the second term is ...
  31. AP Calculus

    Consider the curve given by x^2+4y^2=7+3xy a) Show that dy/dx=(3y-2x)/(8y-3x) b) Show that there is a point P with x-coordinate 3 at which the line tangent to the curve at P is horizontal. Find the y-coordinate of P. c) Find the value of d^2y/dx^2 (second derivative) at the ...
  32. math,correction

    Can someone correct these for me plz... Problem#6 Factor. x(x-5)-2(x-5) My answer is: (x-2)(x-5) Problem#7 Factor completely. x^2-x-6 My answer is: (x+2)(x-3) Problem#8 Factor completely. 35x^2+40x+5 My answer is: (7x+1)(5x+5) Problem #9 Factor by grouping. x^3-5x^2+2x-10 MY ...
  33. Social Studies

    I need some help with some questions from my civic's homework! It's about the Articles of Confederation 1. How are delegates selected for Congress? My answer: Delegates were selected for Congress by being appointed by the legislatures of each State. 2. What is the process for ...
  34. Calculus - Still Need Help! Anyone!

    A particle moves along the x-axis with position at time t given by x(t)=e^(-t)sin(t) for 0 is less than or equal to t which is less than or equal to 2 pi. a) Find the time t at which the particle is farthest to the left. Justify your answer I think you have to find the prime ...
  35. Pre Cal

    6-x=2x+9 If you are to solve the equation for x, first try to get the variable on one side of the equation. Let's subtract 2x from both sides to start (whatever operation you do to one side of an equation you must do to the other side as well): 6 - x - 2x = 2x - 2x + 9 6 - 3x...
  36. English Check answers

    Identify the number of independent and subordinate clauses in the following group of words. Energy can be gathered by using solar power A.two independent clauses(MAY ANSWER) B.one independent clause and one subordinate clause C.one subordinate clause only D.one independent ...
  37. physics

    2) A proton is moving parallel to a uniform electric field. The electric field accelerates the proton and increases its linear momentum to 8.6 x 10^-23 kg·m/s from 2.4 x 10^-23 kg·m/s in a time of 5.7 x 10^-6 s. What is the magnitude of the electric field? 3) A uniform ...
  38. gr. 12 chemistry

    Hi, please check my work: In an experiment, 23.4 g of FES are added to excess oxygen and 16.5 g of FE2O3 are produced. The balanced equation is: 4FeS = 7O2 --> 2Fe2O3 + 2SO2 Calculate the % yield. My Answer: nFeS=23.4g/87.92 g/mol =0.266 mol 4mol FeS / 0.266 mol = 7mol O2/ ...
  39. maths

    If (e^x)(sin3x)=Im ((e^x)(e^i3x)) integrate (e^x)(sin3x) I get the answer(e^x)(cos3x-3sin3x) +C My book gets the answer (1/10)(e^x)(sin3x-3cos3x)+C Can any explain which answer is right and why Integral of e^(1+3i)x = e^(1+3i)x /(1+3i) + c Multiplying numerator and denominator...
  40. Biology

    - "problems that result as blood alcohol concentration increases" Basically, I'm supposed to put what page number the answer is on, and then what the answer is. I have the page number, yet the answer is no where on the page to be found. I've read it over multiple times, so I'...
  41. MoRe HeLp PlEaSe!! (calc)

    Also can I get some help with this LONG, TIRESOME PROBLEM? Find the derivative using the chain rule. f(x)= ((3x-7)/(6x+3))^4 Thanks a lot! (68/(12x^2+12x+3))*[(3x-7)/(6x+3)]^3 you should double check the answer multiply 4((3x-7)/(6x+3))^3 by the derivative of (3x-7)/(6x+3), ...
  42. physics

    A catapult launches a rocket at an angle of 47.5° above the horizontal with an initial speed of 109 m/s. The rocket engine immediately starts a burn, and for 2.49 s the rocket moves along its initial line of motion with an acceleration of 30 m/s2. Then its engine fails, and ...
  43. chemistry

    How much heat is required to raise the temperature of 200 g CH3OH from 20 to 30 degrees and then vaporize it at 30 degrees. The molar heat capacity of CH3OH is 81.1 J/Mol/K. Okay...the answer is approximately around 254. It was a homework problem. The question is how do you ...
  44. chemistry

    How much heat is required to raise the temperature of 200 g CH3OH from 20 to 30 degrees and then vaporize it at 30 degrees. The molar heat capacity of CH3OH is 81.1 J/Mol/K. Okay...the answer is approximately around 254. It was a homework problem. The question is how do you ...
  45. algebra1

    Find the product: (x + 5)2 12 Answer: Referring to the figure, find an expression for the area. 13 Answer: Use the zero-product property to solve the equation: (x + 4)(x - 2) = 0 *NOTE: Applicable to this and all other questions-- For any solution that involves two answers, ...
  46. Math

    In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for each incorrect answer; and receive no points for unanswered questions. A student does not know the correct answer for one question. Is it to her ...
  47. Math

    In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for each incorrect answer; and receive no points for unanswered questions. A student does not know the correct answer for one question. Is it to her ...
  48. Pre-Calculus

    A culture of bacteria obeys the law of unlimited growth. If 500 bacteria are present initially and there are 800 after 1 hour, how many will be present in the cultrue after 5 hours? How long until there are 20,000 bacteria? Hmmm, what is "the law of unlimited growth"? In any ...
  49. CHEMISTRY- answer check

    A 0.386g sample of a protein was dissolved in water and made up to a volume of 60mL at 21.0°C. At this temperature the osmotic pressure of this solution was 1.24mmHg. Calculate the molecular mass of the protein 12682 g mol-1 95025 g mol-1 9627613 g mol-1 5706 g mol-1 125.17 g...
  50. 7th grade math please check ASAP please!

    Tom buys a shirt for $22.00 plus 7% sales tax. His cousin buys a shirt for $18.00 plus 4% sales tax. a. How much do Tom and his cousin pay for the shirts? Show your work. b. Who spent more on tax? (3 points) Is my answer correct: B: Tom's cousin **I already know A, thanks for ...
  51. physics conversions check my answers

    can you check my answers. 1. What is the corresponding barometric pressure values in mmHg if the barometric pressure is reported as: 29.7 inHg. = 754.38mmHg 31.8 inHg. = 807.72mmHg 26.4 inHg. = 670.56mmHg 22.1 inHg. = 561.34mmHg 34.8 inHg. = 883.92mmHg 2. What are the ...
  52. Physics-Answer Check

    You have an LED bulb that uses 4 watts of power and gives an output of 170 lumens. The operating voltage is 120 volts. Using this data, find the following. 1. What is the current that the LED bulb uses? Ans. 0.03 ampere 2. What is the effective resistance of this bulb? I'm not...
  53. electromagnetism

    Consider a coaxial cable with a central conducting wire (r=1mm) surrounded by an outer coaxial conducting sheath (rinner=3mm,router=3.2mm) as shown. A current i=300mA flows down the center wire (into the page) and back through the conducting sheath (out of the page). #4A (2 ...
  54. Calculus (pleas help!!!)

    Let p(x)=x^2(a−x), where a is constant and a greater than 0. Find the local maxima and minima of p. (Enter your maxima and minima as comma-separated xvalue,classification pairs. For example, if you found that x=−2 was a local minimum and x=3 was a local maximum, ...
  55. Chemistry

    Answer check: Define a catalyst and explain a catalyst's role in a chemical reaction. A catalyst is a substance that speeds a chemical reaction without being permanently changed itself. It works by providing a convenient surface for the reaction to occur. The reacting ...
  56. Physics

    A spy satellite is in circular orbit around Earth. It makes one revolution in 6.00 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] Please provide a step by step explanation of how you got to...
  57. English

    After you solve the cross word puzzle, using the answer words, complete the dialogue between a teacher and a student. Look at the first row, Across one starts with 's.' Down four contains one r. What is the suitable word for Down 1? Across 6 ends with l. What word is Across 6...
  58. English

    Choose.. 1/ Ali is ( old, older ,oldest than Hani. Answer: older 2/ the elephant is ( big, bigger, biggest) than the horse. Answer: bigger. 3/ Sam answered ( more , most, much carefully than his sister . Answer: more. 4/ Ann is the ( young , younger, youngest) one in our ...
  59. calculus

    "superman is in level flight 6 miles above ground. his flight plan takes him directly over whs high school. how fast is he flying when the distance between him and the whs high school is exactly 10 miles and the rate is increasing 40mph?" i keep getting: r = 10 r'=40 y=6 x=8 x...
  60. Maths

    Three circles of radius 1 unit fit inside a square such that the two outer circles touch the middle circle and the sides of the square. Given the centres of the circle lie on the diagonal of the square, find the exact area of the square. I got the answer 18 + 8root2 but the ...
  61. Calculus

    We just learned derivatives and now on the Chain Rule. y = r/[(sqrt)(r(sqrd)+1)] y' = [[(sqrt)(r(sqrd)+1)(r)'] - [(r)(sqrt)(r(sqrd)+1)']] / [(sqrt)(r(sqrd)+1)](sqrd) y' = (sqrt)(r(sqrd)+1) - r[1/2(r(sqrd)+1)(raised to -1/2)](2r) My final answer is -3r/[2(sqrt)(r(sqrd)+1)]. ...
  62. Reading

    1. Everyone hates frozen peanut butter sandwiches. Answer: O Circle:Everyone 2. The secretary keeps the peanut butter sandwiches in a refrigerator in the faculty room. Answer:F 3. Money was stolen three days in a row from students. Answer: F 4. Diane is one of the bossiest ...
  63. Biology-check my answer

    Hershey and Chase used the 35S isotope to label proteins. How does this isotope differ from the 32S isotope found in greatest natural abundance, and why did they choose 35S instead of 32S? A)35S has more protons than 32S; Hershey and Chase used it because it has a greater mass...
  64. Calculus

    1. Evaluate the function at the given numbers (correct to six decimals places). Use the results to guess the value of the limit,or explain why it does not exist. F(t)=( t^(1/3) - 1)/(t^(1/2) - 1) ; t= 1.5,1.2,1.1,1.01,1.001; The limit of F(t) as t approaches 1. My work: t=1....
  65. Math (calculus) (mean values)

    A company introduces a new product for which the number of units sold Ss given by the equation below, where t is the time in months. s(t) = 155(7-(9/(2+t))) a) Find he average rate of change of s(t) during the first year. I got the answer to be 1395/28 b) During what month of ...
  66. math help, correction

    Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. HOw many of each bill odes Anna have? How do i solve these type of problems my quess was this but i don't know if i'm correct. 5(x) + 10(y) = 100 5(0) + 10y = 100 10y = 100 --- --- 10 ...
  67. Basic math skills with geometry (6th ed.)

    Place the following set of numbers in ascending order. 25, -13, 8, -2, 13, 3, 18 The answers are either. (A) -13, -2, 3, 13, 8, 3, 18 (B) 25, 18, 13, 8, 3, -2, -13 (C) -13, 3, -2, 8, 13, 18, 25 (C) -13, -2, 3, 8, 13, 18, 25 I think the answer could be (D) would this be the ...
  68. Pre- Algebra

    Please answer as soon as you can I need help figuring this out :) Which number is greater than 5.5 x 10^-7 and less than 5.5 x 10^7? A. 1.8 x 10^-12 B. 6.7 x 10^8 C. 5.2 x 10^3*** D. 3.9 x 10^-3 If you know what the answer is can you, if at all possible, explain how you got ...
  69. english grammar check my work

    1. WE get to go home. answer(we=noun...get=helping verb to=helping verb=go=verb...home=noun). 2. A lot of kids have watched several times. (a=article....lot=adverb...of=preposiiton...kids=noun....several=adjective....times=noun) thank you so much!
  70. Chemistry(Please check)

    1)A piece of metal with a mass of 5.50 grams changed in temperature from 25 to 55 degrees celsius when 21.3 joules was absorbed. What is the specific heat of the metal? a)0.256 b)0.129 c)3.91 d) 7.75 e)0.710 Jg^-1 C^-1 I chose 7.75 because I did 5.50/21.3 and then multiplied ...
  71. Calculus

    Can anyone help me with these two optimization problems? A boat leaves a dock at 9:00 P.M. and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 10:00 P.M. How many minutes after 9:00 P.M. were the two boats...
  72. Physics - Charges on objects (check + help)

    Two identical objects have charges from +6.0*10^-6 and -2.0*10^-6, respectively. When placed a distance d apart, their force of attraction is 2,0N. If the objects are touched together, then they moved to a distance of separation of 2d, what will be the new force between them? ...
  73. Calculus

    ABC Daycare wants to build a fence to enclose a rectangular playground. The area of the playground is 900 square feet. The fence along three of the sides costs $5 per foot and the fence along the fourth side, which will be made of brick, costs $10 per foot. Find the length of ...
  74. calculus

    A box with a square base is to be constructed with a surface area of 726 square centimeters. 1. Draw a diagram of the box. Label the diagram appropriately with variables. 2. Write an objective equation and a constraint equation (label each one as objective or constraint). 3. ...
  75. Physics

    I need help on the following questions, I am stuck and not sure on what to do, can someone work it out and or tell me steps to obtain the answer. Thank you 1) A point charge of -0.90 microC is fixed to one corner of a square. An identical charge is fixed to the diagonally ...
  76. Early Child Ed.

    Would someone also please check thse questions and my answers to make sure I have chosen the best possible answer? 1. A good example of people-first language is: A. "He has cerebral palsy." B. "She's a Down's baby." C. "This is a child with attention deficit disorder." D. "...
  77. English

    The new drug proved to be highly efective,it has no side effects. A. PROPERLY CONSTRUCTED SENTENCE B. COMMA SPLICE C. LACKS PARALLEL PARTS D. HAS UNCLEAR PRONOUN Please post your answer, and we'll discuss it. A Please check this site. http://ace.acadiau.ca/english/grammar/...
  78. Math

    Can someone check my answer for this homework assignment? What is the volume of a square pyramid that is built in a cube with edges of 12 inches? Square pyramid in 12-inch cube A. 48 in3 B. 144 in3*** C. 576 in3 D. 1,728 in3 Find the volume of a square pyramid with base edges ...
  79. Chemistry

    You work at a fastr food restaurant 5 days a week, 6 hours a day, and are paid $840 every two weeks. Each hour you wrap 184 burgers. How many burgers will you have to wrap to make a million dollars? I got $7142857 from the proportion: $1,000,000x 2 weeks/$840 x 5 days/1 week x...
  80. math check please

    Newton’s law of cooling states that for a cooling substance with initial temperature T0 T 0 , the temperature T(t) T ( t ) after t minutes can be modeled by the equation T(t)=Ts+(T0−Ts)e−kt T ( t ) = T s + ( T 0 − T s ) e − k t , where Ts T s is the surrounding ...
  81. Algebra

    Could someone correct my answers and help with the other problems? 1. Are the following lines parallel, perpendicular, or neither? L1 with equation x – 5y = 10, L2 with equation 5x + y = 5. Answer: Neither (I'm not to sure but i think this is the right answer) 2. Divide: a^...
  82. Check Answers PLEASE

    Paula asked 30 students what they ate for lunch. All the students had at least a sandwich, salad or fruit. ********************************* QUESTION A Draw a Venn Diagram. * * * * * * * * * * * * * * * * * THIS IS THE INFORMATION FROM THE DIAGRAM: 5 students had a sandwich, ...
  83. Calculus

    I did an experiment where I had to measure how fast water flowed out of a container at different times and with different volumes. I also had to record the values into a table and graph them. (I got an exponential function). I am to answer the following questions and I do not ...
  84. Chemistry

    Hi! I am having some trouble with this question, can you please help me? Which of the following describe chemical properties? Check all that apply. - Iodine (a purple solid) becomes a purple gas. - Titanium is less dense that iron . - Water freezes at 0'C - Sugar burns in air ...
  85. math***check answerss****

    please check answers... 2.yesterday ,a parking lot had 10 cars parked in it.of the cars parked in the parking lot l,40% were silver,3 were red,and the rest were blue.how many of the cars were blue? A.2 cars B. 5 cars C. 3 cars (I PICK THIS) D. 8 cars 3.everyone in andy's class...
  86. Propagating error

    Find the absolute and percent relative error for each calc. b) 81.5 (+/- 0.5) x 40.2 (+/- 0.2)/ 21.8 (+/- 0.2) my answer for absolute error was 150. +/- 200, which is outrageous. Can someone show how they would do it so I can compare and find my mistake? error/(81.5* 40.2/ 21....
  87. Algebra

    Can you please check my answer: Solve the problem. A person with no more than $4000 to invest plans to place the money in two investments, telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 3 times the pharmaceuticals investment. ...
  88. Someone Please Check My Answers?!?!?

    18. Which action during westward expansion had the most negative impact on the lives of slaves? A.) The Fugitive Slave Act**** B.) The Mexican-American War C.) The Treaty of Washinton D.) The Missouri Compromise 19. Which answer best describes why towns and cities were built ...
  89. math please help

    please check my answer thanks :) I messed up somewhere.:( Using the FIFO method of inventory pricing, what is the dollaor value of ending inventory if there were 17,000 units on hand on Dec 31 Must show all of work Jan 1 5,ooo @ $0.89 = 4450 Feb 15 10,000 @$ 0.69 = 6900 Apr 15...
  90. Science, please check my answer Ms Sue!

    How does a hurricane form? a.)It forms over a warm ocean water as a low-pressure area*** b.) it forms over a warm ocean as a high-pressure area. c.) it forms over cool ocean water as a low-pressure area d.) it forms over a cool ocean water as a high-pressure area. My answer is...
  91. Algebra

    1. Given g(x) = x^2 -x, find g (2/3). Answer- -2/9 2. The scatterplot of this data would suggest a Study Time (Min) 14 20 23 25 28 32 Test Score 60 67 68 70 72 73 Answer- positive correlation 3. The scatterplot of this data would suggest a # of cookies consumed each week 1 3 4...
  92. Business Accounting

    why does the bank tell you they are "crediting" your account when they increase it and "debiting" your account when they decrease it? I know this is a simple question but I just want to make sure I am currect with my answer before I post it to my class forme. Answer: A bank ...
  93. Pre Calculus 12

    Im on the chapter of permutations/combinations/fundamental counting principle need help with 2 questions 1. emma is arranging her books in piles on her desk. she has 5 math books, 3 english books, and 4 science books. how many ways can she arrange them if she wants to keep the...
  94. math,correction

    is this correct: solve: 5(x-2)^2=3 My answer: (10 +/- sqrt 15)/(5) looks like you expanded, then used the formula and you got the right answer properly reduced. I think you are getting this!!! I don't want to confuse you but I would have done the following: (x-2)^2 = 3/5 x-2...
  95. Math-probability

    In a multiple-choice test, each question has five options. Students will get 5 points for each correct answer; lose 2 point for each incorrect answer; and receive no points for unanswered questions. A student does not know the correct answer for one question. Is it to her ...
  96. physics

    A newly established colony on the Moon launches a capsule vertically with an initial speed of 1.453 km/s. Ignoring the rotation of the Moon, what is the maximum height reached by the capsule? km The answer key is 1040km. I have tried v^2/2g (1.4532km/s)^2/(2*.0162km/s^2) and ...
  97. Pre-Calculus

    The Hotel Ventor has 400 rooms. Currently the hotel is filled. The daily rental is $ 600 per room. For every $6 increase in rent the demand for rooms decreases by 7 rooms. Let x = the number of $ 6 increases that can be made. What should x be so as to maximize the revenue of ...
  98. Intermediate Algebra

    Please help with the below. I know the answer I need help figuring out how to get the answer I am obviously doing something wrong, because I come up with a different answer that what I am supposed to. Here it is: F(X)3Xsquared-5X+1 The correct answer is 12Xsquared-70X+101, the...
  99. grammar

    Grammar Exercise 3 To Be Distributed to Students in Week Five Rewrite the following sentences, focusing on the grammar area specified in the left column. To enter your answer, click next to the number and begin typing. If the sentence is already correct, write No Change. ...
  100. Calculus

    A train is heading due west from St. Louis. At noon, a plane flying horizontally due north at a fixed altitude of 4 miles passes directly over the train. When the train has traveled another mile, it is going 80 mph, and the plane has traveled another 5 miles and is going 500 ...
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