1. calculus: related rates

    hello, please help me. A cylindrical can is being heated with its height increasing at the rate of 0.01cm/min and its diameter at the rate of 0.005cm/min. At what rate is the volume increasing when the can has a diameter of 15cm and a height of 20cm. this

    asked by mary on March 11, 2012
  2. MATH!!!!!!!

    PLEASE HELP!!! A standard doorway measures 6 feet 8 inches by 3 feet. What is the largest dimension that will fit through the doorway without bending??? o and i also need work shown Do you mean what length of stick or pole would fit through a doorway? If

    asked by Grayson on May 9, 2007
  3. calculus 3

    A ball is thrown northward into the air from the origin in three dimensional space ( the xy plane is the ground, the positive y-axis points north, positive x-axis is east and the positive z – axis is height above the ground ). The initial velocity of the

    asked by cano on October 4, 2010
  4. Math

    The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same

    asked by Anonymous on January 21, 2015
  5. calculus

    1.Find the following for the function f(x)=(x+6)^2(x-2)^2 a. what are the x and y-intercepts? B. Does the graph cross or touch the x-axis? c. Does the graph cross or touch the x-axis at the larger x-intercept? 2. Which of the following best describes how

    asked by Sammy-please help!!!! on December 18, 2012
  6. Geometry 12

    Find the mistake made in the following proof. Explain why you think your colleague made this mistake. Given: AB∣∣ED and AB≅ED Prove: ΔABF≅ΔDEF Proof: It is given that AB∣∣ED so angle ∠DEB is congruent to angle ∠ABE, because parallel lines

    asked by Kayla Druery on December 14, 2015
  7. PHYSICS

    Two lifeguards pull on ropes attached ton a raft. If they pull in the same direction, the raft experiences a net external force of 341 N to the right. If they pull in opposite directions, the raft experiences a net external force of 170 N to the left. Find

    asked by Emily on September 30, 2012
  8. Chemistry

    How do you find the Ka1 and Ka2 of oxalic acid when it is in a solution that is 1.05 M H2C2O4 and has a pH of 0.67. [C2O4^2-] = 5.3x10^-5 M. I have tried using an ICE table for both reactions, as oxalic acid is a diprotic acid, but I am having trouble

    asked by Erika on November 1, 2015
  9. Statistics

    A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 20 accounts was checked and yielded a mean balance of $664.14 and a standard deviation of 235.29. Assume the data is

    asked by Giselle on April 22, 2015
  10. Physics (E&M)

    A uniformly charged straight wire (radius a) has linear charge density lambda. The wire is coated with a dielectric material chi with external radius b. I need to find the electric field everywhere and the volume and surface bound charge distrobutions but

    asked by Anonymous on December 14, 2006
  11. Physics

    A box of mass m = 59.0 kg (initially at rest) is pushed a distance d = 84.0 m across a rough warehouse floor by an applied force of FA = 204 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and

    asked by Daisy on October 23, 2016
  12. Mathematics

    An invoice is dated January 24 with terms 2/10 – 20x. Find the final discount date and the net payment date. The net payment date is 20 days after the final discount date. The final discount date is 2/23. The net payment date is 3/?.

    asked by Anonymous on March 8, 2012
  13. maths

    In the year 2000 there were 350 mobile phones users living in the small town of Phoneville. Since 2000 the number of residents using mobile phones has increased by 25% each year, that is, each year the number of mobile phones increases by a factor of 1.25

    asked by Stephanie on May 8, 2011
  14. English

    Can someone read my eight sentence paragraph. A high school diploma is very important to me. With a high school diploma I can show my children that your never to old to go back to school. Which will set a good example for my children to show them they need

    asked by Rebecca on February 21, 2015
  15. Math

    1. 3(y+1) for y=2 A. 6 B. 9 C. 7 D. 8 2. d+g/h for d = 45, g= 18, and h=9 A. 6 B. 7 C. 3 D. 4 3. The cost in dollars of a school banquet is 74+12n, where n is the number of people attending. what is the cost for 52 people? A. $550 B. $698 C. $624 D. $138

    asked by Miko H🦋 on November 27, 2018
  16. maths

    a roofer charges $25 per hour for himself and $15 per hour for his assistant. On a recent job the assistant worked 2 hours less than the roofer and the tot charge for labour was $290. Let r be the number of hours that the roofer worked. Which of the

    asked by nick on August 7, 2013
  17. math

    You have 2 digits, 2 numbers, reverse digits and 54 if the difference and the sum of all is 10 I'm not clear what you're asking, could you clarify what the conditions are for us please? My grandson came home with the problem that he wrote out on a piece of

    asked by Will on August 31, 2006
  18. Physics

    A woman stands at the center of a platform. The woman and the platform rotate with an angular speed of 4.00 rad/s. Friction is negligible. Her arms are outstreched, and she is holding a dumbbell in each hand. In this position the total moment of inertia of

    asked by CJ on March 21, 2007
  19. Probability

    Let T1,T2,…,Tn be i.i.d. observations, each drawn from a common normal distribution with mean zero. With probability 1/2 this normal distribution has variance 1, and with probability 1/2 it has variance 4. Based on the observed values t1,t2,…,tn, we

    asked by A on April 2, 2014
  20. math

    Completely factor the expression 2a3 − 128. A. 2(a − 4)3 B. 2(a − 4)(a2 + 4a + 16) C. 2(a3 − 64) D. Prime Completely factor the expression 7(x − y) − z(x − y). A. Prime B. (x − y)(7 − z) C. (x − y)(7 + z) D. (x − y)2(7 − z)3 Find

    asked by realiesna on May 14, 2015
  21. Physics

    A block of mass 35kg is on a flat floor with a static friction coefficient of 0.36 and a kinetic friction coefficient of 0.29. A person attempts to slide the box from rest in a forward direction . Find the maximum frictional force experienced and the

    asked by Gabb on November 4, 2015
  22. Precalculus

    For this problem I drew a Venn diagram.. Sets A,B and C are subsets of U. U= positive integers less than 16 A= prime numbers B= factors of 36 C= multiples of 4 (A intersect B)' union C {?} My answer: The apostrophe stands for negation! According to my Venn

    asked by Anonymous on April 27, 2014
  23. Human biology Coursework

    On the net it has been suggested and my experiment it has been proven that Fructose can break down Vitamin C or atleast stop it from being effective in some way. I can not find ant theories on the net to how this breakdown happpens. As someone who has

    asked by Carly on March 5, 2007
  24. math

    On Saturday, the fruit and juice bar was selling 30 glasses of fruit punch an hour. By 7 p.m., they had sold 270 glasses. If their goal was to sell at least 360 glasses of fruit punch, which inequality can be used to find h, the number of hours they must

    asked by Anonymous on October 7, 2015
  25. Math

    I still do not understand fractions?????? 2/3 + 1/3 + 5/6 = divide all of them first then add them up ???. I am still lost, can someone please help me. Ok. In your earlier question, there was talk of the LCM, the least common multiple. Whenever you add

    asked by Andre on March 21, 2007
  26. US History

    ALL of the countries below are matched CORRECTLY with the outcomes of colonization except for: a. English: established permanent settler colonies despite hardships b. Spanish: failed to find gold or to convert the Indians to Christianity c. French:

    asked by Anonymous on November 17, 2016
  27. education-need help plz

    do u know where i can find more infor on Student safety on field trips Do you have a responsibility to limit their rights? ·Identify the rights and responsibilities you will have as a teacher. How will your responsibilities as a teacher influence the

    asked by scooby91320002 on July 17, 2008
  28. Algebra

    I need help solving these three problems. 1/4(7 + 3g) + -g/8 Twice the greater of two consecutive odd integers is 13 less than three times the lesser number. Find the integers. About 4.9 million households had one brand of personal computers in 2001. The

    asked by Josie on October 27, 2009
  29. physics

    The Moon's mass is 7.34 x 10^22 kg, and it is 3.8 x 10^8 away from Earth. Earth's mass if 5.97 x 10^24 kg. a. Calculate the gravitional force of attraction between Earth and the Moon. b. Find Earth's gravitional field at the moon. GIVEN: Moon's mass = 7.34

    asked by Heart on December 24, 2009
  30. physics

    Thank you drwls, My problem is a. The lifetime of the levels in a hydrogen atom are of the order 10-E8s. What is the evergy uncertainty of these states? Compare this result with the energy value of the first excited state. b. Find the shortest and the

    asked by bun on December 8, 2009
  31. Art

    I urgently need your help for two main reasons, Writeacher. 1) First, how would you express the following concept when presenting the programme for an exam: total (complete?)reading of the abdridged edition of Orwell's 1984. 2) Second, I need to find the

    asked by Frank on May 6, 2012
  32. chem

    The equilibrium constant Kc equals 5.90 for the reaction CH3COOH + C2H5OH CH3COOC2H5 + H2O Find the molar concentrations of acetic acid, ethanol, ethyl acetate, and water at equilibrium when .10 M acetic acid and .20 M ethanol are allowed to equilibrate. I

    asked by JP on April 16, 2007
  33. Math

    Raul and Rosie are playing a guessing game. Rosie tells Raul that she has 62 miniature flags in her bag, all green or red. Rosie then tells Raul that if she doubled the green flags and halved the red flags, she would have 88 miniature flags in her bag. How

    asked by ilovepink on October 15, 2009
  34. physics

    A meter stick is pivoted at its 50-cm mark but does not balance because of non-uniformities in its material that cause its center of gravity to be displaced from its geometrical center. However, when masses of 150 and 200 grams are placed at the 10-cm and

    asked by jess on June 25, 2010
  35. science

    Calculate the heat of combustion of candle wax in kJ/mole. The standard heat of formation (∆Hf ) of candle wax (C20H42) is -2230 kJ/mole. The standard heat of formation (∆Hf ) of carbon dioxide is -394 kJ/mole. The standard heat of formation (∆Hf )

    asked by emma on April 25, 2013
  36. Computer networks

    Consider sending a file of 2Mbits from Host A to Host B. There are three links and two store-and-forward routers (or switches) between A and B. Assume that no link is congested (that is, no queueing delays), and the one-way propagation delay of each link

    asked by Up on September 5, 2010
  37. physics

    electrons are accelerated from rest over a distance of 800m to a velocity of 3x10 7 m/s. what is the acceleration of the electrons and what formula did you use to find the acceleration. (1/2)[V(final)^2 - V(initial)^2] = a X V(final) = sqrt (2 a X) a =

    asked by Chris on September 2, 2005
  38. Physics

    A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then released, the ball reaches

    asked by Nikohl on October 17, 2010
  39. Physics

    A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then released, the ball reaches

    asked by Eden on October 17, 2010
  40. Physics

    I'm sorry this is kind of a long question. I've been staring at it for about an hour now and I have no clue where to even start. Thank you so much!!!! A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale

    asked by Maya on June 7, 2016
  41. grammar

    Can someone please check the errors I have noted and let me know if they see more? I am supposed to find 20 errors but can only find 15!! Please help. The correction is in parentheses. Why are great numbers of students choosing to pursue their college

    asked by Lily on July 1, 2010
  42. math

    Which of the following houses would you have the greatest probability of getting a crunch bar while trick or treating if the owner is randomly handing out one item to each child? 1) house 1 has 30 crunch bars,20 sour patch kids, 30 Swedish fish 2) house 2

    asked by B8 on October 28, 2013
  43. social studies

    how was this phrase (our greatest glory is not in never falling,but in riseing every time we fall)in confucianism meant to the chinese This phrase means that it's not important if you fail. What's important is that you rise above your failure and succeed

    asked by naythan on January 10, 2007
  44. Biology

    how do chromosomes determine sex a family has four children, two girls, and two boys. one girl and one boy are color blind. are their parents color blind name at least three traits that are a results of polygenic inheritance weight, eye clor, height

    asked by fanggirl.rockrchik on January 10, 2013
  45. Physics

    A particle undergoes two displacements, measured from the positive x-axis, with counterclockwise positive. The first has a magnitude of 11 m and makes an angle of 67 ◦ with the positive x axis. The resultant displacement has a magnitude of 7.7 m directed

    asked by Gagan on September 14, 2016
  46. math,correction

    Geometry. Find the perimeter of the given figure. tHE Figure is a rectangle.It has height (8)/(2x-5) and length (8)/(2x-5) My answer is: (2(x+8))/(2x-5) ------------------------------------ Add or subtract as indicated. Express your result in simplest

    asked by jas20 on March 2, 2007
  47. eng

    Q9. Choose the most appropriate options to complete the dialogue given below: The Land lady : Hello! Mr. Maxim Gorky. (a) well? Maxim Gorky : Not too good. The bugs (b) . (4 marks) Page 7 of 10 Land lady : Bugs in my inn ! You (c) find a single bug here.

    asked by satyajit(assassin) on September 8, 2013
  48. math

    Tickets to the Senior Class Play cost $3.00 for students, $8.00 for adults, and $5.00 for senior citizens. At Friday night's performance, there were 121 students, 174 adults, and 32 senior citizens. At Saturday night's performance, there were 183 students,

    asked by Sam on November 3, 2012
  49. Math

    Jim, Juan, Mary, and John are all managers for the same company •Jim always meets the sales goals •Juan exceeded the goal by 15% on Tuesday and 10% on Wednesday. •Mary’s goals for each day of the week are 5% lower than the goals for other managers.

    asked by MJ on January 5, 2015
  50. math

    Find the percent of the increase or decrease. Original:4500 New:4005 the percent is lower which is 40% Set it up in words: 4005 is what percent of 4500? Now make the words into numbers: 4005=4500x x=0.89 89% decrease. If you don't get it please let me

    asked by Anonymous on January 25, 2007
  51. Physics Help

    While a person is walking, his arms swing through approximately a 45° angle in 1/2 s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.

    asked by D.J on February 14, 2012
  52. Calculus

    As you know, Chemproc, Inc. is a premier manufacturer of chemicals and chemical waste. Further, as has been recently highlighted on the local news, we are in the process of expanding our Lonlinc, Skanebra chemical manufacturing plant to add two or three

    asked by Sarah on May 13, 2012
  53. Finance

    Item Total assets $10,000,000 Total equity (all common) 9,000,000 Total debt 1,000,000 Annual interest 100,000 Total sales $25,000,000 EBIT 6,250,000 Earnings available for common stockholders 3,690,000 I am trying to find the values for the: (1) Operating

    asked by Advice on February 13, 2012
  54. Finance

    Item Total assets $10,000,000 Total equity (all common) 9,000,000 Total debt 1,000,000 Annual interest 100,000 Total sales $25,000,000 EBIT 6,250,000 Earnings available for common stockholders 3,690,000 I am trying to find the values for the: (1) Operating

    asked by Advice on February 12, 2012
  55. Physics

    A satellite made of aluminum with mass 3500 kg travels on circulated path in 100 km height over the earth. Because of airresistance of the airveil the satellite loses energy and falls in a spiral down to earth. a) What is the mechanical energy of the

    asked by Amber on November 17, 2011
  56. math

    A bicyclist rode into the 5h. In returning, her speed was 5 mi/h faster and the trip took 4h. What was her speed each way? distance =rate*time The distance is the same. y = rate going z = rate returning Going: d = y*t = y*5 = 5y return: d = z*t = z*4 = 4z

    asked by cheryl on March 19, 2007
  57. Math 115

    Every fraction has a decimal equivalent that either terminates (for example,1/4=0.25 ) or repeats (for example,2/9=0.2 ). Work with a group to discover which fractions have terminating decimals and which have repeating decimals. You may assume that the

    asked by blondie on December 5, 2007
  58. Math 115

    Every fraction has a decimal equivalent that either terminates (for example,1/4=0.25 ) or repeats (for example,2/9=0.2 ). Work with a group to discover which fractions have terminating decimals and which have repeating decimals. You may assume that the

    asked by blondie on December 5, 2007
  59. math

    1. The greater of two integers is 4 times the lesser. Of the lesser integer is increased by 12, the result is 3 less than the greater.Find the integers. 2. Tom is three times as old as Leigh Ann. In 7 years, the sum of half of Tom's present age and a third

    asked by kim on July 14, 2013
  60. physics

    A body with uniform acceleration covers 76 m in the 5th sec and 116 m in the 10th sec.Find the distance traveled in the 15th sec.what is the distance traveled in next 5 seconds. As the body is travelling with uniform acceleration so the distance traveled

    asked by rati on June 21, 2016
  61. Applied Calculus

    If an object is launched straight up into the air from a starting height of h_{0} feet, then the height of the object after t seconds is approximately h=-16t^2+v_{0}t+h_{0} feet, where v_{0} is the initial velocity of the object. Find the starting height

    asked by Trisha on April 8, 2012
  62. math

    The expression 9a + 6s is the cost for a adults and s students to see a musical performance. a. Find the total cost for three adults and five students. b. The number of adults and students in a group both double. Does the cost double? Explain your answer

    asked by amy on September 7, 2010
  63. Math

    If an object is launched straight up into the air from a starting height of h_{0} feet, then the height of the object after t seconds is approximately h=-16t^2+v_{0}t+h_{0} feet, where v_{0} is the initial velocity of the object. Find the starting height

    asked by Trisha on April 8, 2012
  64. Applied Calculus

    If an object is launched straight up into the air from a starting height of h_{0} feet, then the height of the object after t seconds is approximately h=-16t^2+v_{0}t+h_{0} feet, where v_{0} is the initial velocity of the object. Find the starting height

    asked by Trisha on April 8, 2012
  65. math(elmntry euclidean geometry)help needed ASAP!

    The sum of the angles of a quadrilateral is 360°. Find the conditional, draw a diagram, and state the given and conclusion. CONDITIONAL FORM: If it is the sum of the angles of a quadrilateral, then it measures 360°. DIAGRAM: Not shown, but pictures a

    asked by dav on September 5, 2015
  66. Physics

    Two point charges are placed on the x axis. The charge +4q is at x=3.00 m, and the -q charge is at x=-3.00. a) There is a point on the x axis between the two charges where the electric potential is zero. Where is this point? Found it to be: -1.80m b) The

    asked by Rachel on February 12, 2011
  67. Its not English, but its GENERAL STUDIES

    Write half page for each topic. What do you feel about? or something you wish to know or learned ? in college about? 1. Test preperation. 2. Faculty expectaton. I am uncertain what you want here. We will be happy to critique your writing. What do you feel

    asked by SHISH on December 2, 2006
  68. match phrases to artists

    #1. This artist painted scenes of upper-class recreation: #2. Famous for his paintings and drawings of ballet dancers and racetrack scenes in France: #3. Specialized in painting Impressionistic paintings of "simple moments, capturing the play of light...":

    asked by danny on February 9, 2009
  69. English

    Thanks for your helping.But I do not understand some problem which is about identify the word or phrase that should be corrected.I will give an english examination after two days.So I need a help.I have written a question which is I couldn't identify good

    asked by Bayarbold on June 23, 2011
  70. chemistry

    A gas has an empirical formula of POF3. If 0.350L of the gas at STP has a mass of 1.62g, what is the molecular formula of the mass? molar mass= 1mol x 22.4L/1mol x 1.62g/0.350L = 103.7g molarmass/empirical formula mass = 103.7g/214.5g = 0.4834 ... how do I

    asked by Sh on January 24, 2009
  71. statistics

    Total plasma volume is important in determining the required plasma component in blood replacement therapy for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that a random

    asked by Anonymous on November 5, 2012
  72. maths

    Bag A contains 6 white beads and 3 black beads. Bag B contains 6 white beads and 4 black beads.One bead is chosen at random from each bag. find the probability that both beads are black and at least one of the two beads is white??

    asked by sumaiyah on April 12, 2012
  73. math

    1. Divide. Write your answer in simplest form. 2/3 / 1/4 2. Find the product. 1/2 x 3/7 3. Divide. Write the quotient in simplest form. 3/5 / 2/10 4. Divide. Write the quotient in simplest form. 3/4 / 4/5 plz help me

    asked by help on August 31, 2012
  74. Math

    Tomas makes balloon structures at a circus. In 180 minutes, he uses 252 balloons to make 36 identical balloon structures. a. How many minutes does it take to make one balloon sculpture? How many balloons are used in 1 sculpture. b. What is Tomas's unit

    asked by Matt on September 15, 2016
  75. English

    I urgently need you to help me find the proper words. Thank you Writeacher 1) Thank you very much for sending me the list of your students. I was thinking of creating a link to our partnership ( I don't know how to express this) on my school webpage. 2)

    asked by Matthew on March 13, 2012
  76. Organic Chemistry Lab

    For this week's lab, we have to devise our own separation and purification scheme. The mixture contains three compounds, however my problem lies in the fact that the composition isn't given to us. There are four possible combination 1)benzoic acid,

    asked by Remi on October 25, 2010
  77. Biology 1

    Does anyone know of a Photosynthesis concept map that includes all of the following: Photons, thylakoids, reactions, sun, NADPH, carbohydrates, xanthophyll, wavelength, pigments, stroma, product, photosynthesis, NADP+, visible light, glucose, energy,

    asked by Jane on December 5, 2013
  78. Physics

    A force F 1 of magnitude 5.90 units acts on an object at the origin in a direction θ = 28.0° above the positive x-axis. (See the figure below.) A second force F 2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find

    asked by McKynzlea on February 12, 2017
  79. physics

    Two crewmen pull a boat through a lock, as shown in Figure 5-25. One crewman pulls with a force of F1 = 155 N at an angle of θ = 32° relative to the forward direction of the raft. The second crewman, on the opposite side of the lock, pulls at an angle of

    asked by John on October 11, 2014
  80. Math

    An architect has allocated a rectangular space of 589ft^2 for a square dining room and a 12ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space. The width of the square dining room is _____ft The

    asked by Pam on February 23, 2014
  81. MATH

    1. A boat traveled 210 miles downstream and back. The trip downstream took 10 hours, the trip back took 70 hours. What is the speed of the boat in still water? What is the speed of the current? 2. Flying to Kampala with a tailwind a plan averaged 158km/h.

    asked by Kian on August 27, 2012
  82. Trigonometry

    A car with wheel of radius 14 inches is moving in a speed of 55 mph.Find the angular speed of the wheel in radian per sec. your car is moving at 55 mph, which is 55*5280*12 inches/3600 seconds or 968 inches/second. each rotation of the wheel covers 2*14*pi

    asked by James on July 3, 2007
  83. Chemistry

    A scuba tank contains heliox, a special breathing gas composed of 5.0% oxygen and the remainder helium, for use by divers that spend extended amounts of time at depth underwater. The volume of the tank is 20 L and the pressure within it is 1500 lb/in2.

    asked by alexis on May 3, 2015
  84. MATH

    hi i was just wondering if u could help me with this math problem. find dy/dx at the indicated point in two different ways (a)solve for y as a function of x and differentiate (b) differentiate implicity. 1. y^2=3x+1 (5, -4) how do u do this in two ways? im

    asked by johanna on October 13, 2006
  85. Statistics

    The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 90% of students now own a cell phone and 10% do not own a cell phone. Fifteen

    asked by Mackenzie on December 3, 2014
  86. Constutitional Law

    You are a paralegal assisting an attorney who is representing an individual who has been convicted of a murder during a home invasion and who was sentenced in state court to be executed. You are assisting with research for an appeal to the U.S Supreme

    asked by breeamberr on January 17, 2015
  87. Science

    Can the size of an object's displacement be greater than the distance the object travels? Describe the motion represented by a horizontal line on a distance-time graph. Explain whether, during a trip, a car's instantaneous speed can ever be greater than

    asked by Twilight lover on April 28, 2009
  88. Chemistry

    1. Calculate the acetylsalicylic acid concentration (in mg/mL) of aspirin solution #2 in the Procedure section. Assume that 300 mg of acetylsalicylic acid has been weighed out. 2.3. (3 pts) Calculate the acetylsalicylic acid concentrations (in mg/mL) of

    asked by Cassie on April 10, 2012
  89. Math(Equation Writing)

    Can you please help me write out the equation for these? (not solve) 1. The number of trees planted by the Alpine Nursery in April was three more than twice the number of trees planted by the nursery in March. If 73 trees were planted in April, how many

    asked by Bryce on August 24, 2011
  90. physics

    A tray held horizontally by a waiter. The tray has a weight of 6N and supports a drink of weight 3N. The waiter provides a force at P (BTW P is at one end). The tray my pivot about point T (BTW T is 5cm away from P) Find the force provided by the waiter at

    asked by Sharda on August 18, 2014
  91. English Help Please!!!

    Cohesion and Coherency/Sentence Variety This short paragraph has two distinct problems. First, to improve cohesion, rewrite these sentences so that old information is at the beginning of each sentence. Second, combine sentences and/or provide transitions

    asked by Kader on April 20, 2014
  92. Math

    Write the exponential function y=6(1.21)t in the form y=aekt. (a) Once you have rewritten the formula, give k accurate to at least four decimal places. k= help (numbers) If t is measured in years, indicate whether the exponential function is growing or

    asked by ann on March 15, 2016
  93. Math question - plz correct

    Two airplanes leave an airport at the same time. One travels at 355km/h and the other at 450km/h. Two hrs later they are 800km apart. Find the angle between their courses. a^2 = b^2 + c^2 - 2bc Cos A 800^2= 450^2 + 355^2 - 2(450)(355) Cos A 640000= 202 500

    asked by May on May 27, 2008
  94. english

    Can someone help me find rhetorical devices used in this poem, "mother to son" by langston hughes. I know one is that the crystal stair is a metaphor but are there any others? well, son, I'll tell you: Life for me ain't been no crystal stair. It's had

    asked by Anonymous on September 14, 2008
  95. statistics

    Several psychology students are unprepared for a surprise​ true/false test with 18 ​questions, and all of their answers are guesses. a. Find the mean and standard deviation for the number of correct answers for such students. b. Would it be unusual for

    asked by Mart on July 23, 2019
  96. Univ Physics-resistance

    A hollow cylindrical resistor with inner radius r1 and outer radius r2, and length l, is made of a material whose resistivity is rho. A.Find the resistance for current that flows radially outward. Divide the resistor into concentric cylindrical shells and

    asked by Joanna on February 9, 2010
  97. Calculus

    A manufacture has been selling 1050 television sets a week at $480 each. A market survey indicates that for each $25 rebate offered to a buyer, the number of sets sold will increase by 250 per week. a) Find the function representing the demand p(x), where

    asked by Anonymous on November 29, 2017
  98. math

    In a group of 100 people 40 own a cat, 25 own a dog and 15 own a cat and a dog. Find the probability that a person selected at random from the group: a) owns a dog or a cat. b) owns a dog or a cat, but not both c) owns a dog, given that he owns a cat d)

    asked by sabir on February 17, 2013
  99. Algebra Help

    A motorist was to travel from town A to town B, a distance of 80 miles. He traveled the first 24 miles at a certain rate; traffic then increased and for the next 6 miles he averaged 10 miles per hour less than his original speed; then traffic eased up and

    asked by Jane on October 25, 2013
  100. algebra

    1 (a) A function passes through the points (0, -5), (1, 0), (2, 7). Use finite differences to determine the equation of the function. (b) Draw the graph of the function. (c) Draw the inverse on the graph. (d) Show at least two different restrictions to the

    asked by Wafi on June 4, 2008

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