1. Calculus

    Two cars leave an intersection at the same time. Car X is travelling East at 50 km/hr and Car Y is travelling South at 60 km/hr. Find the rate at which the cars are separating after 30 minutes. I want its complete solution

    asked by ChrismB on April 26, 2016
  2. Chemistry/ Physical Chemistry

    Napthalene is dissolved in a liquid with which it forms an ideal solution at 25C. The normal boiling point of napthalene is 80.2 C and ^fusH for napthalene is 19.0 KJ/mol. Determine the solublity of napthalene in this liquid at 25 C.

    asked by Monquie on November 19, 2006
  3. solid mensuration

    Two perpendicular chords divide a circle with a radius of 13 cm into 4 parts. If the perpendicular distances of both chords are 5 cm each from the center of the circle, find the area of the smallest part. Please include solution. Thanks.

    asked by Cathy on December 1, 2012
  4. Chemistry

    The solubility of acetanilide in your recrystallizing solvent is 5.0 mg per mL at 10 degrees Celsius. Calculate the maximum percent recovery in this experiment, assuming a 15.0 mL recrystallizing solution is filtered at 10 degrees Celsius.

    asked by Anonymous on September 24, 2014
  5. Chemistry

    compute volume and/ or weights of reagents to make the following solution. Desired concentration: 40% NaOH + 4% Na2S2O3 Desired quantity: 1500 mL Given: 90% w/w NaOH, pure Na2S2O3 I'm not sure how to do this so any help would be great. Thanks!

    asked by Alan on September 17, 2007
  6. chem

    Calculate the pH of the solution that results from mixing the following four aqueous solutions together: (1.) 100. mL of 0.300 M HI (2.) 200. mL of 0.250 M LiCl (3.) 300. mL of 0.200 M KOH and (4.) 150. mL of 0.150 M HBr a. ) 2.00 b. ) 3.99 c. ) 5.32 d. )

    asked by Anonymous on March 7, 2009
  7. College Chemistry

    given the concentration of 125.0mg/L of Fe(2+)in the stock solution and the volume used which is (1.00mL) how do i calculate the concentration of iron(II) ions in mg/L? i pipet 1.00mL of the stock into a 250ml volumetric flask!

    asked by Anonymous on July 12, 2012
  8. Chemistry 3A

    calculate the mass of solid NaCl that must be added to 1.50L of a 0.100M AgNO3 solution to precipitate all the Ag+ ions in the form of AgCl. calculate the mass of AgCl formed.

    asked by Gurjot on December 10, 2012
  9. Math

    In a candy shop, the shopkeeper allows the exchange of 3 sweet rappers for 1 new sweet. John has 81 sweets at first. What is the largest possible number of sweets that john could have eaten? (with solution pls... tnx...)

    asked by HELP HELP HELP MNHS on February 3, 2013
  10. Chemistry

    In a particular redox reaction, MnO2 is oxidized to MnO4– and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in acidic solution. Phases are optional. MnO2 + Cu^2+ ---> MnO4^- + Cu^+

    asked by BOB on May 4, 2014
  11. Chemistry

    A hospital glucose solution is analyzed to verify its concentration. A 10.0 mL sample with a mass of 10.886 is evaporated to dryness. If the solid glucose residue has a mass of 0.648, what is the m/m% concentration?

    asked by Linzy on April 8, 2013
  12. Biochemistry

    Calculate the pH of a mixture of one mole of benzoic acid and two mole of sodium benzoate dissolved in 1 L of solution. The pKa of benzoic acid is 4.2. What is the final molar concentration of the buffer?

    asked by Shalette on February 12, 2017
  13. Chemistry

    An aqueous solution of a compound with a very high molar mass was prepared in a concentration of 82.7 g·L-1 at 25 °C. Its osmotic pressure was 0.540 ·102 Pa. Calculate the molar mass of the compound. Cheers

    asked by David on April 28, 2010
  14. chem

    How many grams of CH3COOH are needed to make 4.2 liters of aqueous solution of pH=3.4?Be sure to back correct from equilibrium molecular acid molarity to starting molecular acid molarity.

    asked by meg on October 6, 2010
  15. Chemistry 20

    Determine the amount concentration of the iron ions and sulfate ions in a 0.620 mol/L solution of iron(III) sulfate. Including the balanced chemical equation.

    asked by Anonymous on November 15, 2010
  16. Chemistry

    A copper coil is placed in a solution of silver nitrate, the reaction proceeds and in time silver crystals form and the colution of copper nitrate is produced. What is the complete raction .

    asked by June on June 6, 2011
  17. chemistry

    A drop of starch is added to a mixture of 97.30 ml of 0.1096 M I2 and 97.20 ml of 0.1098 M Na2S2O3. I've already calculated the moles of I2 to be 10.66408 moles and the moles of Na2S2O3 to be 10.67256. Will the solution be blue even if their moles aren't

    asked by jean on February 5, 2009
  18. Chemistry

    Can somebody pls help me with this? For the equation below find the net balanced equation: Ag + NO3- --> Ag+ + NO (Note: This reaction takes place in an acidic solution.) This is what I got: 3Ag + NO3- + 4H+ --> 3Ag+ + NO + 2H2O right

    asked by Lisa on February 5, 2007
  19. Chemistry

    The titration reaction of a solution containing 1.00 g mixture of Na2CO3 and K2CO3 with HCl shows that there are 8.50x10^-3 moles of C03-2. Find the weight percent of Na2CO3 and K2CO3 in the mixture. Please Help!!

    asked by Magaly on December 7, 2014
  20. physics

    You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg? Please give your answer with solution .

    asked by anonymous on June 24, 2013
  21. chemistry

    What is the pH of a buffer solution made from 0.20M HC2H3O2 abd 0.5M C2H302^-.The ionization constant of the acid (Ka)(HC2H3O2)is 1.8multiplied by 10^-5. (ii)Calculate the ionization constant of its conjugate base

    asked by lovemore on April 2, 2012
  22. algebra

    What is a reasonable domain and range for this scenario? Water is added to a 30 milliliter solution that is 50% acid. The equation A(X)=15/30+x respresents the concentration of acid,A, in the mixture as x amount of water is added

    asked by jjj on April 6, 2011
  23. Physics

    A motorist travels 160km at 80km/hr and 160km at 100km/hr. What is the average speed of the motorist for this trip? I need the step by step solution because I didn't listen to ny teacher properly

    asked by Michael Lawrence Dureza on November 14, 2015
  24. CHEMISTRY

    pka of xanthine monophosphate is 5.5. a certain experiment can detect all forms of solute molecule present in solution at greater then 10% of total solute concentration. at pH 7, the experiment will detect presence of?

    asked by VARSHA on October 30, 2014
  25. Chemistry

    How do I find the answer to this?? Cu metal displaces Ag+(aq) from an aqueous solution. Which of the following is correct? Ag is easier to oxidize than Cu Ag is a better reducing agent than Cu Cu2+ is a better oxidizing agent than Ag+ Ag+ is easier to

    asked by Clueless on January 18, 2018
  26. math

    Given that sinx = cos(x+20o) write tanx in terms of sin20o and cos 20o. a) Hence find the values of tan x. b) Find the general solution of 3sec2y=5(1+tany)

    asked by sue on May 24, 2016
  27. Chemisrty

    what is the molality of a 0.075m of ethyl alcohol in water at 25 degrees celcius. Assume the density of the solution at such low concentration is equal to that of water at 25 degrees celcius, 0.997g/ml

    asked by Kate on February 13, 2011
  28. university chemistry

    many cola soft drinks contain caffeine and benzoic acid (pKa 4.2), explain how you would isolate separately pure caffeine and benzoic acid from an aqueous solution containing both compounds

    asked by angela on March 12, 2013
  29. Math

    1. Lois is making applesauce. Each batch she makes yields 3.25 quarts of applesauce. Lois already has 1.5 quarts. She would like to have a total of 14.5 quarts before she is finished for the day. How many batches of applesauce does Lois need to make? First

    asked by Rose on January 10, 2018
  30. chemistry

    using the following salts listed below, calculate the moles of acid and conjugate base needed to make 100 ml of 0.50 M, ph 6.5,6.7, and 6.8 phosphate buffer solution. (For H2PO4-, pka=6.64) Salt Molar mass, g/mol KH2PO4 136.09 NaH2PO4*H2O 137.99

    asked by alleyx3 on October 28, 2012
  31. biology

    The plasma membrane: Tick the box next to the ONE answer you believe is TRUE. A. can generate action potentials in excitable cells B. may burst in hypertonic extracellular solution C. can contain carbohydrates which confer ion permeability. D. is made up

    asked by Lancer on November 8, 2010
  32. Physics

    A rope of mass m uniformly distributed along it's length l can slide without friction on a horizontal table. At instant t=0 the hanging part of the rope has a length b, and the rope is held at rest. When it is left, the rope begins to slide. At instant t

    asked by Jessy on October 8, 2017
  33. Science

    What is the distance an object travels per unit of time? It's called the speed Depends on the velocity (speed), if the speed is 10mph, then the object would travel 10 miles (distance) per hour (unit of time). I'm unsure what your answer is saying, because

    asked by Ginger on September 18, 2006
  34. physics

    a person 0f mass m = 60 kg walks along the radius from the periphery to the center of a circular platform of moment of inertia= 200kgm square and radius r = 3m. the disk is a rotating frictionless with angular velocity= 0.3 rad\s.find the angular velocity

    asked by John on May 1, 2012
  35. College Chemistry

    i measured out 2 different tared mass of TUMS sample. One is 0.1554g and the other 0.1546g. Then i did two titrations with the conclusion of one being 17.91mL of NaOH and the other 17.47mL my question is: "if you consumed two 1.00g tablets of TUMS, how

    asked by Anonymous on November 21, 2011
  36. Chemistry

    Sodium cyanide, empirical formula NaCN, is a solid which melts at 564 degrees C to give a liquid that conducts electricity. it also dissolves in water to give a conducting solution. Use these properties to deduce the type of bonding that holds this

    asked by David on March 11, 2007
  37. Chemistry

    What volume (in milliliters) of 0.170 M NaOH should be added to a 0.140 L solution of 0.021 M glycine hydrochloride (pKa1 = 2.350, pKa2 = 9.778) to adjust the pH to 2.84? I tried using the Henderson- Hasselbalch equation but I am confused about what to do

    asked by L on February 28, 2016
  38. Chemistry (Aqueous Solutions)

    This one stumped me alot... Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO4 2-, CO3 2-, PO4 3-, OH-, or S 2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This

    asked by Macey on April 5, 2010
  39. AP Chemistry

    What mass of solid sodium formate (of MW 68.01) must be added to 130 mL of 0.63 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 3.68? Ka = 0.00018 for HCOOH. Answer in units of g I tried converting the pH to H+ and using the

    asked by Helpmepls on January 16, 2018
  40. Pre-calc

    prove the identity: (cosx)(tanx + sinx cotx)=sinx+cos(squared)x i need steps to show how i got the answer generally, it is a good idea to change all trig ratios to sines and cosines, and start with the more complicated-looking side. so.... LS =

    asked by Stacey on May 6, 2007
  41. Designing Specialty Areas

    We show we value families when we do which of the following? A. Tell families that they hold their children's future in their hands, so it's crucial that they make sure their children complete their homework. B. Realize that families are too busy to be

    asked by Priscila on April 9, 2017
  42. Physics

    Eris, the largest dwarf planet known in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its surface of magnitude g = 0.77 m/s2. (a) Use these numbers to calculate the escape speed from the surface of Eris. (b) If an object

    asked by James on June 29, 2012
  43. Physics

    Could someone please help walk me through this problem I'm struggling with? Thanks in advance! A brick with mass m1=2.5 kg can move without friction on a horizontal plane. The brick is attached to a wall by an ideal spring with spring constant k=2300 N/m.

    asked by Jamie on November 29, 2016
  44. trig

    how does this work? (Sin2x+cos2x+2sin²x)/(sinx+cosx) = (sinx+cosx

    asked by Tim on May 29, 2008
  45. Algebra

    Janice can type in 30 min Bianca can type in 45 min how long if they work together

    asked by Anonymous on June 8, 2017
  46. Trigonometry

    I need help with the inverse of si, cos, & tan. So far on one problem I've gotten sinX = 29/14 where do I go from here? I know you have to use cos^-1, but how? Can anyone work this one problem out for me to see how to do it? THANKS!

    asked by Ceci on February 5, 2011
  47. Calculus

    f(x)=5+(6/x)+(7/x^2), find f'(x). I haven't done fractions without using the quotient rule im not so sure this would work with quotient rule what do i do?

    asked by John on April 29, 2008
  48. English

    Which is grammatically correct? I'm not really sure how onomatopoeias work. 1. “Vroom!” the chainsaw took right off. 2. "Vroom!" The chainsaw took right off. 3. other?

    asked by Misca on September 16, 2007
  49. science

    In the course of a short race a car does 50,000 j of work in 7s what is the power of the car during the race

    asked by angelo on December 17, 2014
  50. CHEM 114

    I just want to know if it's possible for two reactants to be first order? I checked my work over and over and redid it and both of my reactants keep coming out to be first order

    asked by Aiyana on February 4, 2017
  51. math

    the circumcenter of a triangle is equidistant from the three blank of the triangle? i have to find the blank work

    asked by help on May 20, 2009
  52. math

    camilla worked 71 hours in july how many minutes did camilla work in july

    asked by amber on May 30, 2009
  53. science

    in the course of a short race,a car does 50,000 J of work in 7 s. What is the power of the car during a race?

    asked by sophie on November 16, 2009
  54. math

    in a class of 21 students, 1 out of every 3 students volunteer to work. What is the ratio of volunteers to non volunteers?

    asked by Geri on November 13, 2015
  55. Physics

    Why is sin theta used in the torque formula while the work formula uses cosine theta?

    asked by Morgan on March 24, 2010
  56. Math

    Camilla worked 71 hours in July. How many minutes did Camilla work in July?

    asked by Kassidy on August 8, 2016
  57. Physics

    Consider the figure above consisting of three particles of mass m attached to a massless rod.  Given an axis of rotation through point P, the rod rotates as shown in the figure.  If the rod is released from rest in the horizontal position at t = 0. 

    asked by Courtney on July 25, 2017
  58. Math

    An equilateral triangle s divided into 4 congruent equilateral triangles. What method can be used to find the area of the larger equilaterl triangle give the area of one of the smaller triangles? F. Multiply the area of the larger equilateral triangle by 4

    asked by Danny on December 7, 2010
  59. please help me with my engineer project

    I am working on an Engineer project about Digital clock I research my project on the Digital Clock, but i could not find any webcite that has the answer to these questions 1. What your part is and how it works? 2. Companies that make this kind of

    asked by shylo on November 28, 2007
  60. Psychology

    Trace the memory system from stimuli into long-term memory. Discuss the features of each step and factors that enhance or impede information flow in each step of the process. Explain proactive and retroactive interference and how you might counteract their

    asked by Anonymous on June 1, 2008
  61. CHEM

    A 0.552 g sample of ascorbic acid(Vitamin C) was dissolved in water to a total volume of 20.0 ml and titrated with 0.1103 M KOH. The equivalence point occurred at 28.42 ml. The pH of the solution at 10.0 ml of added base was 3.72. From this data, determine

    asked by Cooper on March 21, 2012
  62. Biology(Anatomy&Physiology)

    1)Which group of organic molecules makes up your genetic code 2)A substance which tends to resist a change in the pH of a solution is called a 3)Which buffers is the most common in the body 4)Which of molecules is primarily made of CHON 5)Which is the

    asked by Stephanie on October 15, 2008
  63. chemistry

    a 5.29 g sample of impure sodiun chloride was dissolved and dihuted to a total volume of 250 0 ml. If 25.0 mL of the sodium chloride solation required 28.5 ml, of 0 300 M AgNO3, solution to reach the equivalence point, using chromate indicator, what was

    asked by wallace on October 29, 2018
  64. business math

    Salary Increase.you accept a new job with a starting salary of 34,800. you are told that you will receive an annual raise of at least 1,500. what is the maximum number of years you must work before your annual salary will 45,000

    asked by bibi on May 25, 2014
  65. Physics

    1)The velocity of sound in air is 332 m/s. If the unit of length is km and the unit of time is hour, what is the value of velocity? m/s bobpursley said he would be happy to check my work but I don't know what they're looking for I thought they are looking

    asked by Jon on April 15, 2008
  66. Physical Science

    I need to know what equations to use! (A)How much work is done moving a 2.0Kg book to a shelf 2.00m high? (B) What is the change of potential energy of the book as a result? (C) How much kineetic energy will the book have as it hits the ground when it

    asked by Totally Lost!! on January 29, 2009
  67. Physics

    A .324 kg air track glider moves linearly with an initial speed of 1.37 m/s.In order to increase the speed of the mass, 7.31 J of work are done. What is the final speed of the glider? (Ignore the negligible friction)

    asked by Anonymous on January 26, 2017
  68. Language Arts - Maniac Magee

    I need help finding Maniac Magee online. I need to be able to highlight parts of it with my mouse, but I can't find any sites that will work. If you don't find a site, please give me some words that I can use in the search bar to find a site. Please help,

    asked by Brady on February 24, 2014
  69. Physics

    A box is being with a velocity v by a force P (parallel to to v) along a level horizontal floor. the normal force is Fn, the kinetic frictional force if fk, and the weight of the box is mg. Decide which forces do positive, zero or negative work and why?

    asked by Nilan on February 12, 2012
  70. sociology

    Which of three theoretical perspectives best explains the fact that Americans find work roles psychologically satisfying but also find them to stressful? Functional theory conflict theory symbolic interaction theory

    asked by paula on August 9, 2009
  71. Chemistry

    Write the mechanism for (E)-2-5-dimethyl-hex-3-ene and bromine? Assign the R, S configuration for each of the products and determine the stereochemical relationship of each set of products. I think the products will be trans but I am not quite sure how the

    asked by Kevin on February 2, 2010
  72. Physics (work and springs)

    A 4kg box is compressed 50cm on a spring (k=800 N/m) and then slides across a horizontal floor. If (u=0.4) between the box and the floor... A) how much work is done? B) assuming the frictional force is constant, how far will the box slide before it comes

    asked by Adam on July 2, 2012
  73. Social Studies (Ms. Sue)

    How did women's roles expand near the turn of the century? My answer: Women's roles expanded as industrial society was drawing more and more women out of the home and off of the farm and into the worlds of work and public life.

    asked by Anonymous on June 4, 2013
  74. psychology

    Describe a hypothesis related to the area of psychology in which you are predicting an interaction. Describe the specific nature of the interaction (how different levels of each independent variable work together to produce different outcomes) and why you

    asked by Toby on February 25, 2013
  75. OCHEM

    Write the mechanism for (E)-2-5-dimethyl-hex-3-ene and bromine? Assign the R, S configuration for each of the products and determine the stereochemical relationship of each set of products. I think the products will be trans but I am not quite sure how the

    asked by Rebecca on February 1, 2010
  76. Physics

    A sphere of mass 85 kg is attached to one end of a rope as shown in the figure below. It is found that the rope does an amount of work W = 8030 J in pulling the sphere upward through a distance 9.6 m. Find the tension in the rope.

    asked by Sierra on July 6, 2012
  77. calculus

    At the indicated point for the function, find the following. A graphing utility's numerical derivative feature can be used to check your work. y = (x3 + 2x)3 at x = 3 (a) Find the slope of the tangent line. (b) Find the instantaneous rate of change of the

    asked by Adam Janky on March 10, 2011
  78. chemistry

    The heat of vaporization of water is 40 kJ mol-1 at 100oC. What percentage of the heat supplied to vaporize the water can be converted into work if the water is vaporized at 100 degrees C against a constant pressure of 1 atm?

    asked by nath on November 8, 2011
  79. physics

    A mover pushes a 4.21 kg box with a 36.6 N constant horizontal force up a 10.0° ramp that has a height of 1.57 m. If the ramp is assumed to be frictionless, find the speed of the box as it reaches the top of the ramp using work and energy.

    asked by Anonymous on November 12, 2018
  80. Physics

    A 9 kg block on a frictionless inclined plane at 40° has a cord attached to a pulley of mass 4 kg and radius 11 cm (see the following figure). (a) What is the acceleration of the block down the plane (in m/s2)? (Enter the magnitude.) (b) What is the work

    asked by Haya on April 15, 2017
  81. Math

    the question is "The track at Beck's is rectangualar. The dimensions of the inner playing field are 200 by 80 feet. The track is 13 feet wide on all sides . How many feet will Becky walk if she follows the outside edge of the trck?" How do you work that

    asked by Ao on August 19, 2010
  82. Math

    For each of the following angles, find a coterminal angle with measure (theta symbol) such that 0 degrees is greater than or equal to omega symbol < 360 degrees. a) -100 degrees. I really do not understand how to work this problem and I need help.

    asked by Catherine on August 19, 2013
  83. physics

    An archer pulls her bow string back 0.400 m by exerting a force that increases uniformly from zero to 240 N. (a) What is the equivalent spring constant of the bow? 1 N/m (b) How much work does the archer do in pulling the bow? 2 J THANKS!

    asked by jennifer on February 9, 2011
  84. Precalculus

    So for our review, our teacher posted the answers to the review online. I do the problem and check my work with the review, but I am questioning number 8. Here is the problem with the answer: prntscr.c0m/4rnpcn How does it equal 16? I am so clueless! G * F

    asked by Zane on September 29, 2014
  85. History

    Which option most accurately describes aspects of the Protestant Reformation? led by Constantine, protestants met at the council of Nicaea to declare Jesus a man rather than divine led by John Calvin, Protestant french huge on protested the edict of

    asked by malia on October 16, 2017
  86. French

    I need help with grammar, can someone check it out for me? 1. Une valeur mobilière est un fongibles, un instrument négociable représentant une valeur financière. Les deux types de valeurs mobilières sont les actions et les obligations. 2. Une action

    asked by Jeff on March 3, 2010
  87. English 102(writing in the discipline)

    Telecommunication is the transmission of data and information between computers using a communication link such as a standard telephone line. Typically, a basic telecommunications system would consist of a computer or terminal on each end, communication

    asked by james on May 14, 2008
  88. social studies

    In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The Trail

    asked by Jenna on February 25, 2014
  89. History

    In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. 1. Which contributed the most to San Francisco's population change? (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The

    asked by #FreeGucci on February 19, 2016
  90. social studies

    In 1846, the population of San Francisco, California, was only 200. By 1852, the city's population was 36,000. Which contributed the most to San Francisco's population change?  (5 points) The Gold Rush The Mexican-American War The Monroe Doctrine The

    asked by Christian on February 23, 2014
  91. science

    Discuss how comets might have a role to play in life evolving on an earth-like extrasolar planet in a distant solar system. can some one please help me out here. If life came to Earth via a comet, wouldn't it make sense to predict that some comet could

    asked by kat on May 18, 2007
  92. Physics

    A 0.95 m rod with uniform mass distribution runs along the x axis with its left end at the origin. A 1.8 m rod with uniform mass distribution runs along the y axis with its top end at the origin. Find the coordinates of the center of gravity for this

    asked by Jamie on June 10, 2012
  93. Social studies

    Which of the following is an advantage of a presidential government? A) the president is elected independently of the legislature B) the president is part of the legislative branch of government C) A system of checks and balances increases legislative

    asked by Sam on August 16, 2016
  94. Chemistry

    In a large building, oil is used in a steam boiler heating system. The combustion of 1.0 pound of oil provides 2.4*10^7 J. How many kg of oil are needed to heat 100 kg of water from 22 to 100 degrees C? How many kg of oil are needed to provide steam from

    asked by Steve on February 6, 2012
  95. Algebra 2

    For each function, identify the horizontal translation of the parent function, f(x)=x^2. Then graph the function. 19. y=(x-4)^2 I need to figure out how to solve this problem, so steps would be appreciative! PLEASE don't leave websites for me to check out,

    asked by Mike on December 6, 2016
  96. Maths

    Solve for following applying spherical trigonometry... 1.Papua New Guinea (37° 45'N, 122°27'W)(since course was 260°) distance travelled =2250nm. A) use law of cosine to calculate a and thus altitude:or B) use law of sine to calculate N and thus

    asked by Collins on May 18, 2018
  97. Maths

    There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the

    asked by Salman on November 19, 2009
  98. Math 7 - NYS Math Exam Review Help!

    19. The circumference of the circle below is 25.12 centimeters ***** There is a circle and then there is a line and written radius C = 2(pi)r Which is the best estimate for the length of the radius of the circle? a) 3 cm b) 4 cm c) 8 cm d) 16 cm please

    asked by Laruen on April 15, 2012
  99. math

    suppose you bought some 32 cents stamps and some 20 cents stamps. you spent $3.92 for 16 stamps. how many of each stamp did you buy? i got the equation--.32x + .20y = $3.92 but don't know how to solve for x and y what class/level is this for 8th grade math

    asked by norman on February 1, 2007
  100. Math

    There is a point (P) on the graph of [x^2+y^2- 136 x + 12 y + 4560 = 0] and a point(Q) on the graph of [(y + 6)^2 = x^3 - 116 x^2 - 417 x + 267460] such that the distance between them is as small as possible. To solve this problem, we let ((x,y) be the

    asked by Salman on November 19, 2009

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