1. Physics

    A centrifuge in a medical laboratory rotates at an angular speed of 3500 rpm (revolutions per minute). When switched off, it rotates 70.0 times before coming to rest. Find the constant angular acceleration of the centrifuge. (Assume the initial direction

    asked by Gina on October 14, 2010
  2. math

    Danny and Erica are 3km apart on a straight road. They set out to walk uniformly at the same time. If they walk in an opposite direction, they will meet after 24 minutes. If they walk in the same direction, Danny will catch up to Erica after 6 hours. Find

    asked by anonymous on April 1, 2018
  3. statistics

    sing the proper average, find the average number of grams of fat per ounce of meat or fish that a person would consume over a 5-day period if he ate these: 3 oz fried shrimp 3.33 g/oz of fat 3 oz veal cutlet 3.00 g/oz of fat 2 oz roast beef 2.5 g/oz of fat

    asked by roga on February 18, 2013
  4. Chemistry Lab

    A 15.00 mL sample of a weak acid with Ka = 3.52x10-4, was titrated with 0.475 M KOH. The equivalence point was reached after addition of 19.5 mL of KOH with the phenolphthalein indicator. Determine the molar concentration of the original acid solution,

    asked by Erin Lee on October 30, 2012
  5. physcs

    A potter's wheel having a radius 0.55 m and a moment of inertia 11.6 kg·m2 is rotating freely at 55 rev/min. The potter can stop the wheel in 8.0 s by pressing a wet rag against the rim and exerting a radially inward force of 66 N. Find the effective

    asked by Kelsey on April 17, 2010
  6. Pre Calc

    I am familiar with this type of problem but can't seem to get the right answer. Use the given zero to find the remaining zeros of each function f(x)=x^4-9x^3+7x^2-91x-348,zero 5-2i I normally would use synthetic division with the root 5-2i bringing it down

    asked by Zach on November 13, 2009
  7. Chemistry! urgent

    what volume of gas at 40°C and 1.50 atm is necessary to react with 300 L of hydrogen gas measured at the same conditions? 2H2 (g) + O2 (g) --> 2H20 (g) 1.50 atm= 151.KPa How would I solve this? Because I can't use: PV = nRT I have pressure, temperature,

    asked by Sarah on January 10, 2018
  8. English

    I need help bad, what exactly am I suppose to write about with this question. I just need to know what this question is asking. Here is the question: “Locate two books or internet sources on the career of Edgar Allen Poe. On the basis of information you

    asked by Anonymous on September 19, 2010
  9. Math

    A consumer buys n light bulbs, each of which has a lifetime that has a mean of 800 hours, a standard deviation of 100 hours, and a normal distribution. A light bulb is replaced by another as soon as it burns out. Assuming independence of the lifetimes,

    asked by Lo on April 27, 2011
  10. Politics

    I'm writing a speech, and it's about the topic "Private sector investment is preferable to public sector investment for Human Space Exploration" I'm on the con side for this argument, and one of my reasons was that public sector will spur cooperation,

    asked by Anna on September 18, 2011
  11. Physics question

    mass 0.3kg is moving on the ground at speed 4m/s towards ball B which is at rest on the ground and has mass of 0.8kg. When A collides with B the ball remains in contact for 0.2 sec after the collision B moves forward with a velocity of 1.8m/s find the

    asked by Amy on January 10, 2018
  12. physics

    A 15-kg block is on a frictionless ramp that is inclined at 20° above the horizontal. It is connected by a very light string over an ideal pulley at the top edge of the ramp to a hanging 19-kg block, as shown in the figure. The string pulls on the 15-kg

    asked by Mazdaly on April 15, 2015
  13. Physics

    An airplane of mass 1.3 104 kg is moving at 64 m/s. The pilot then revs up the engine so that the forward thrust by the air around the propeller becomes 7.2 104 N. If the force exerted by air resistance on the body of the airplane has a magnitude of 4.0

    asked by Jane on December 13, 2010
  14. Physics

    In Figure 8-34, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of

    asked by Kelly on March 30, 2010
  15. physics

    A cyclist is on a rolling stationary trainer pedaling such that his wheels are traveling at 30 km/h. He has an unfortunate incident and ends up falling over 90° on his side onto a large patch of ice. Given the cyclist and bicycle have an 4.5 kg*m^2, find

    asked by joe on June 30, 2016
  16. Physics

    In Figure 8-34, a 1.2 kg block is held at rest against a spring with a force constant k = 695 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of

    asked by Holy Grail on March 31, 2010
  17. Physics

    A 95 gram piece of metal is heated to 98°C and placed into 200mL of water insulated at 20°C. If the equilibrium temperature is 27.20, find: The heat gained by the water. calories: _________ The specific heat of the metal. cal/(g°C): ________ Hint: 1 mL

    asked by Anna on July 9, 2016
  18. Physics

    A pendulum string has a length l = 4.0 ft. When the pendulum ball is released at 90 degrees to the vertical, it will swing down. A nail is located distance d below the point of suspension of the pendulum. Show that d must be at least 0.6l if the ball is to

    asked by Nora on March 21, 2015
  19. Math

    An underground tank full of water has the shape of a circular cone with a base radius 5m and height 4m at the top. The top of the tankl is 2m below the ground-surface and is connected to the surface by a spout. Find the work required to empty the tank by

    asked by Breona on November 17, 2010
  20. physics

    A 14.7 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 124.0 N parallel to the incline, which makes an angle of 11.0 ◦ with the horizontal. The coefficient of kinetic friction is 0.31 and the crate is pulled a

    asked by Anonymous on November 9, 2012
  21. Math

    The density if a sample is 5.8g/cm^3. the sample fills a cylindrical container whose hieght is 10.2 cm and whose radius is 4.3cm Find the mass of the sample. Mason, I'm sure the reason you haven't received any responses yet is that you haven't indicated

    asked by Mason on July 23, 2007
  22. Algebra 2 ..........

    During a sale, a music store is selling all drum kits for 20% off. Preferred customers also receive an additional 15% off. 1. Write a composite function to represent the final cost of a kit that originally cost c dollars. 2. Find the cost of a drum kit

    asked by Anonymous on February 19, 2013
  23. English 11

    In English we are reading the crucible and we have to find modern day witch hunt examples.witch hunt being people who are guilty in the opinion of public opinion, but is actually innocent in the court of law. Some examples he and some others gave were

    asked by Elaina on October 18, 2012
  24. calculus

    At a summer campfire, the radius of a marshmallow on a stick expands at the rate of \ {r ' (t)} = \frac{2.4 }{3 t + 6} mm/s where t is the time of heating in seconds. Initially the radius was 3.8 mm. Find the radius after 16 seconds using the following

    asked by Marcus on March 8, 2014
  25. materials bahavior

    A specimen has an initial diameter of 200mm and a length of 700mm. At a stress of 40MPa and a temperature of 538oC the steady state strain rate is about 2×10−4% per hour. Find the primary creep elongation and the steady state creep elongation after 5000

    asked by lucas on December 7, 2015
  26. Physics HELp

    In Figure 8-34, a 1.2 kg block is held at rest against a spring with a force constant k = 785 N/m. Initially, the spring is compressed a distance d. When the block is released, it slides across a surface that is frictionless, except for a rough patch of

    asked by Kelly on March 31, 2010
  27. Chemistry

    A certain Geiger counter is known to respond to only 1 of every 1000 radiation events from a sample. Calculate the activity of each radioactive source in curies, given the following data. 580 clicks in 104 s My text barely attempts to explain how to do

    asked by Trixie on April 16, 2010
  28. Science: Physics and Chemistry

    I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is

    asked by Marina on February 8, 2010
  29. PHYSICS

    a 1kg block is executing simple harmonic motion of amplitude 0.1m on a smooth horizontal surface under the restoring force of a spring of spring constant 100N/M.A block of mass 3kg is gently placed on it at the instant it passes through the mean position

    asked by CHIKIRSHU on December 24, 2009
  30. Math

    Sarah has to go to her brother's baseball tournament that lasts for 4 days. She eats two-thirds of a hotdog at every game. He plays 2 games a day. Define your variables, write a function rule, find the domain and range, and tell whether the data is

    asked by Lynn on October 2, 2016
  31. math pre calc

    at the pittsburch zoo, children ride a train for 25 cents, adults pay $1 and seniors pay .75. on a given day, 1400 passengers paid a total of $740 for the rides. there were 250 more children riders than adults and senior riders combined.find the nu,ber of

    asked by JT on April 25, 2013
  32. Math Precal

    An airplane has an airspeed of 650 km/h bearing 15 degrees north of west. The wind velocity of is 19 km/h in the direction of 30 degrees east of south. Find the resultant vector representing the path of the plane relative to the ground. What is the ground

    asked by chris on September 6, 2016
  33. Sampling Distribution Complete solutions and illus

    Sampling Distribution Complete solutions and illustrations are required. 1.The average annual salary for all U.S. teachers is $29,863. Assume that the distribution is normal and the standard deviation is $5,200. a.Find the probability that a randomly

    asked by Rhea on February 27, 2013
  34. Geoscience

    can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the

    asked by Robin on February 21, 2011
  35. Science: Physics and Chemistry

    Can someone please help me with this??? I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses.

    asked by Marina on February 8, 2010
  36. physics

    A baseball is thrown, leaving the baseball player’s hand 6.0 ft about the ground and at a 45 degree angle with respect to the horizon. The initial speed is 80 ft/s. Find the maximum height attained, the length of time the ball stays in the air, and the

    asked by mary on December 10, 2008
  37. physics

    a certain type of propeller blade can be modeled as a thin uniform bar 2.5 m long and of mass 24 kg that is free to rotate about a frictionless axle perpendicular to the bar at its midpoint. if a technician strikes this blade witha mallet 1.15 m fromthe

    asked by Anonymous on October 27, 2009
  38. sorry but more research help

    can you guys also give me websties on the process of committe investigations. i looked in goggle but they keep talking about ethics and all that. i swear, that before i ask for your help, i research for atleast 20 to half an hour on the internert to find

    asked by dolphino on November 17, 2006
  39. Chemistry. What equation do I use?

    A 20.29 g sample of impure MgCO3 is completely decomposed at 1000oC in previously evacuated 2.0 L reaction vessel. After the reaction was complete the solid residue had a mass of 15.9 g. Assume that only MgCO3 could produce gas CO2 what percent of original

    asked by Sarah on December 2, 2008
  40. Physics

    no idea all HELP appreciated!! A shot-putter puts a shot (weight = 70.3 N) that leaves his hand at distance of 1.45 m above the ground. (a) Find the work done by the gravitation force when the shot has risen to a height of 2.15 m above the ground. Include

    asked by Joe on October 19, 2009
  41. math

    Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for the specified variable. A student took out two loans totaling $10,000 to help pay for college

    asked by P.Smith on February 6, 2010
  42. Art

    I'm trying to find out what the differences and similarities are between: Impressionism Neoclassicism and Abstract Expressionism Examples of these arts are: The Emperor Napoleon in His Study at the Tuileries by Jacques Louis David (Impressionism) The

    asked by Leah on April 10, 2010
  43. Physics

    A hanging wire made out of titanium with diameter 0.080 cm is initially 2.3 m long. When a 78 kg mass is hung from it, the wire stretches an amount 2.89 cm. A mole of titanium has a mass of 47.9 grams, and its density is 4.51 g/cm3. Based on these

    asked by Amelie on February 25, 2011
  44. Algebra

    Can anyone tell me if this answer is correct? Solve the problem. Let's imagine that in 2001, a surgeon performs the first brain transplant, the only transplant performed that year. If in 2010, there are 983 brain transplants, find an exponential growth

    asked by Xan on June 19, 2010
  45. science

    I was given a systems equation. Two masses are on a flat frictionless surface tied together. There is a pulley type thing and another mass is hanging over the edge of the table. It is attatched to the other 2 masses. It has no Fn, only Fg because it is

    asked by Marina on February 8, 2010
  46. SCIENCE

    I can't find out anything about this one Please help. The increase in the use of unleaded gasoline is thought to be responsible for a ___% decrease in the amount of lead in the Mississsippi River in the last decade. a. 10 b. 20 c. 30 d. 40 e. 50 I went to

    asked by Meg on May 16, 2007
  47. English

    Team 1, come to the front, please. Who plays the part of the king? Who performs the part of the old man? Who is the movie director? Where is the prop amster in this team? Have you prepared for the props for this play? put them against the blackboard or

    asked by rfvv on November 24, 2017
  48. Finance

    I need some help with an assignment that I am working on for Introduction to Finance class. Here is the questions: The Landis Corporation had 2008 sales of $100 million. The balance sheet items that vary directly with sales and the profit margin are as

    asked by TinkRose on November 21, 2009
  49. need help

    ESSAY EXAMINATION 1 Objective To successfully complete the course, you must complete Essay Examination 1, which requires you to write your answers to specific questions covering important concepts from your studies. Please provide your answers using a

    asked by Anonymous on November 1, 2015
  50. computer

    Lets suppose I am a Manager of some IT company. We have our IT recruiting team who work on employees to get them job until they don't find job, our company has to pay those employees. My team and I want to research on how to increase their skills so they

    asked by singh on August 7, 2007
  51. Probability

    Check my answers, thanks! Roll 2 dice. What is the probaility of rolling and getting: A) a sum less than or equal to 6 = 15/36=.42 B) sum of greater than or equal to 10 = 6/36=.60 C) difference of less than or equal to 1 = that can't be possible right? A)

    asked by Heath on February 1, 2007
  52. Algebra 2

    PLEASE SHOW WORK FOR ALL PROBLEMS, I WANT TO UNDERSTAND HOW TO DO IT, NOT JUST THE FINAL ANSWER :) 1. find all the zeros of the equation -3x^4+27x^2+1200=0 2. Use the Binomial Theorem to expand the binomial (d-4b)^3 3. What is the equation of y=x^3 with

    asked by Mike on December 16, 2016
  53. Dynamics

    A car weighing 3220 lb a curve of 200 ft radius bank at an angle of 30°. Find the friction force acting on tires when the car is traveling at 60 mph. The coefficient of friction between the tires and the road is 0.9. show solution step by step show FBD

    asked by 18 on July 14, 2018
  54. Mathematics

    Along a road lie an odd number of stones placed at intervals of 10 metres.These stones have to be assembled around the middle stone.A person can carry only one stone at a time.A man carried the job with one of the end stones by carrying them in

    asked by Elsa tony on March 15, 2017
  55. calculus

    A fence is to be built to enclose a rectangular area of 210 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the

    asked by Anonymous on November 3, 2010
  56. Math

    the jetstream is a strong wind current that flows across the united states. flying with the jetstream, a plane flew 3,000 miles in 5 hours. Against the same wind, the trip took 6 hours. Find the airspeed of the plane (the speed in still water). My answer:

    asked by Jessica on November 22, 2016
  57. Math Statistics

    In the power ball lottery game, winning the jackpot requires that you select the correct five unique numbers between 1 and 58 inclusive (don't have to match the order) and, in a separate drawing, you must also select the correct single nber between 1 and

    asked by Lizzy on July 7, 2015
  58. English - Beowulf

    So we just started reading Beowulf at school and we're around ch 8. Our question to answer was Whose account of Beowulf and Brecca's swimming match is more credible/believable and why? This is referring to Unferth's and Beowulf's stories. I said that

    asked by Leanna on September 23, 2010
  59. Physics

    A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0049 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.1 102 km/h,

    asked by Dhruba on August 14, 2014
  60. math calculus

    The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to

    asked by sam on May 10, 2013
  61. Chemistry

    9.50mL of .100M NaOH + 8.00mL of .100M of HC2H3O2. Find the pH. Okey this is what I did. 8.00-9.50=1.5mL or .0015L .0015L x .1000 = .00015 moles .00015/(total volume) = .0085714 M -log(.0085714)= 2.0669=pOH 14-2.0669 = 11.933 But I'm getting the feeling

    asked by Amphee on May 14, 2010
  62. Physics

    3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's inertia may been neglected. The object is released from rest when the spring is unstretched. If the object drops 10 cm before

    asked by Bill on February 5, 2015
  63. science

    lena carried out an investigation to find the energy content in bacon rind she lit the bacon rind with a bunsen burner and held it beneath a test tube of water she stirred the water and recorded it temperature! why did lena stir before recording the

    asked by ellen on March 19, 2011
  64. physics

    A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2X10^2 ft/s,

    asked by Emily on October 17, 2012
  65. Physics

    A horizontal 873 N merry-go-round of radius 1.11 m is started from rest by a constant horizontal force of 70.6 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 3.59 s. The acceleration of gravity is 9.8 m/s2

    asked by Caryn on March 26, 2010
  66. Math: Calculus

    A fence is to be built to enclose a rectangular area of 230 square feet. The fence along three sides is to be made of material that costs 5 dollars per foot, and the material for the fourth side costs 15 dollars per foot. Find the dimensions of the

    asked by REALLY NEED HELP!!! on November 1, 2010
  67. chemistry

    A 152g sample of ice at -37 degrees Celsius is heated until it turns into liquid water at 0 degrees Celsius. Find the change in heat content of the system. I'm really confused on how to solve this question knowing the fact that the state of the system is

    asked by maath on January 14, 2019
  68. physics

    A boat must head due north across a river channel that has a current of 9 km/hr towards the west. The boat is capable of traveling at 28 km/hr in still water. If the boat heads into the current to keep its true north course, what will be the resultant

    asked by Marie on October 8, 2014
  69. college algebra

    The height of a projectile fired upward is given by the formula s = v0t – 16t2, where s is the height, v0 is the initial velocity and t is the time. Find the times at which a projectile with an initial velocity of 128 ft/s will be 144 ft above the

    asked by Kelly on April 8, 2014
  70. Physics

    A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2 102 ft/s,

    asked by Emily on October 17, 2012
  71. binomial probabbility

    The author purchased a slot machine configured so that there is a 1/2000 probability of winning the jackpot on any individual trial. Although no one would seriously consider tricking the author, suppose that a guest claims that she played the slot machine

    asked by bibi on September 23, 2011
  72. physics

    A one mole sample of an ideal monatomic gas at 400 K undergoes an isovolumetric process acquring 550 J of energy by heat. Next it undergoes an isobaric process during which is loses the same amount of energy by heat. Find the work done on the gas. Assume

    asked by Anonymous on June 16, 2016
  73. Math

    This question makes reference to an orthonormal basis (i,j), and an origin O. 1. Consider the triangle ABC, with vertices A(0,-2), B(9,1), C(-1,11). Find: a) a cartesian equation of the altitude from C; b) a cartesian equation of the circle which has BC as

    asked by Anonymous on February 27, 2008
  74. Math

    I need help with this problem: Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts ½ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if

    asked by Kelsey on May 14, 2008
  75. Quizzes biology

    Hello, my teacher has once said that she gets all of her quizzes from the internet, but I can't find the site. Does anyone have any idea as to where grade 12, hard, biology quizzes may come from? The quizzes are brutal, and it would so great if I could see

    asked by McLovin on March 3, 2008
  76. physics!!

    You are a secret agent and find that you have been pushed out of an airplane without a parachute. Fortunately, you are wearing a large overcoat (as secret agents often do). Thinking quickly, you are able to spread out and hold the overcoat so that you

    asked by kj on February 14, 2009
  77. Calculus

    A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 4 dollars per foot, and the material for the fourth side costs 12 dollars per foot. Find the dimensions of the

    asked by JAY Z on April 30, 2014
  78. Math

    A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the

    asked by Jacob on December 11, 2014
  79. Math

    A fence is to be built to enclose a rectangular area of 310 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the

    asked by Benjamin on December 11, 2014
  80. AP Calculus BC

    Use a graphing calculator to find how many widgets to make in order to maximize profit. The price (p) of one widget is given as a funtion of the number sold (n) as p=20e^[(-n^2)/40000]and the total cost (c) to make n widgets is given by C = 2n^2 + 2000/( n

    asked by Michael on November 4, 2010
  81. calculus

    the demand for a certain type of auto tire is given by x=f(p) 50(1+e^-p/60). a)if the weekly quantity demanded is 60000 tires find the price? b)if the current price is $120 per tire and is increasing at a rate of $2 per week, what is the rate of change of

    asked by anonymous on April 20, 2013
  82. 11th chemistry

    The chlorination of ethane gives a compound with the percent composition by mass of chlorine in the compound is 71.7% A) find the molecular formula of this compound B) write the condensed structural formulas of the isomers of this compound and give their

    asked by angy on March 7, 2016
  83. Chemistry

    Determine the mass of carbon dioxide that will be formed when 131.0 g of propane (C3H8) is reacted with 32 g of oxygen (O2) C3H8 + 5O2 --> 3CO2 + 4H2O I got O2 as my limiting reagent. Then I used the mol of that which is 1 mol to find the mol of CO2 which

    asked by Nihira on June 16, 2014
  84. physics

    A body of mass 10 kg is attached to a wire 30 cm long. Area of cross section of the wire is 10 raise to power -6 metre square. It's breaking stress is 4.8×10 raise to power 7 N/metre square. Find maximum angular velocity with which it can be rotated in

    asked by bhai on January 11, 2017
  85. Math

    I cant figure out this problem. A pool is rectangular in shape, with a half-circle at one end. The length is 80 feet; the width is 30 feet; depth is 4ft the half-circle is appended to one of the thirty-foot sides, so that end is curved. Find the surface

    asked by Amy on September 25, 2007
  86. Statistics

    A die has one red face, two blue faces, and three green faces. It is rolled 5 times. Find the chance that the red face appears on one of the rolls and the remaining rolls are green. [Careful what you multiply. The most straightforward method is to follow

    asked by AmmanJordan on April 20, 2013
  87. Physics

    A ball is thrown straight up from the ground with speed . At the same instant, a second ball is dropped from rest from a height , directly above the point where the first ball was thrown upward. There is no air resistance. Question- Find the value of in

    asked by Anonymous on May 28, 2010
  88. Calculus 1

    A fence is to be built to enclose a rectangular area of 220 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 13 dollars per foot. Find the dimensions of the

    asked by Olivia on October 31, 2011
  89. Linear Equation in Two Variables

    I have to take a college placement test and am studying the practive test. He is the question . . . What is the equation of the line that contains the points with (x,y) coordinates (-3,7) and (5,-1)? I know that the answer is y=-x+4, but I cannot remember

    asked by J on August 2, 2005
  90. Math

    1. 85 is 40 of what number? A. 212.5 B. 47.1 C. 34 D. 45 2. Find the commission on a $1,250 sale with a commission rate of 5%. A. $62.50 B. $6.25 C. $75.00 D. $125.00 3. Ben bought a desk for $249.99. The sale tax rate was 6.25%. How much did Ben pay for

    asked by CanYouHelpMe on March 13, 2017
  91. Literacy

    What are the subject headings for the 2002 edition of Invisible Man? A. African American men—Fiction B. American literature—History and criticism C. African Americans in literature—Outlines, syllabi, etc. D. Ellison, Ralph. Invisible man i couldn't

    asked by Heather on January 17, 2012
  92. Math 115

    A fence is to be built to enclose a rectangular area of 320 square feet. The fence along three sides is to be made of material that costs 6 dollars per foot, and the material for the fourth side costs 14 dollars per foot. Find the dimensions of the

    asked by Zack on March 26, 2015
  93. Math

    Write a list of steps that are needed to find the measure of ∠B. A line segment ACD is shown with triangle ABC drawn so that AC is the base of the triangle. Angle BAC is labeled with 72 degree sign, and angle BCD is labeled with 113 degree sign.

    asked by barb on February 7, 2018
  94. Physics AP

    So there are two blocks that are connected over a light frictionless pulley. Block A has a mass of 2 kg on a frictionless surface while block b has a mass of 1 kg that hangs freely. It asks for speed, change in speed, and tension. I know that tension can

    asked by Jelly on December 15, 2014
  95. math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 60 people. (You may need to use the standard normal distribution table. Round your answers to the nearest

    asked by leelee kay on June 3, 2014
  96. physics

    a bullet of mass 0.06kg is fired into a block of wood. if the bullet is moving at 330 m/s as it enters the block and takes 0.15m to stop, find: A) the avg force required to stop the mullet b) the impulse exerted by the wood on the bullet c)change in

    asked by kin on March 25, 2008
  97. math 160(buss calculus)

    The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to

    asked by abc on May 11, 2013
  98. calculus

    The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to

    asked by carol on May 10, 2013
  99. Trigonometry

    (Triangle ABC is scalene) AC is a straight shore line and B is a boat out at sea. Angle A is 60 degrees and Angle C is 45 degrees. Find the shortest distance from the boat to the shore if A and C are 5km apart...I honestly have no idea where to start with

    asked by Abby on January 28, 2015
  100. geometry

    Kyle is pulled back on a swing so that the rope forms an angle of 30° with the vertical. The distance from the top of the swing set directly to the ground is 12 feet. Find Kyle’s height off the ground, , when he is in the pulled-back position. Round the

    asked by Anonymous on November 22, 2012

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