1. math

    After several drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, with one fourth being removed every hour, find the person's blood alcohol level after 2 hours.

    asked by liz on October 7, 2010
  2. math/chem

    I need to find the mass of butane gas and I only know the following things (you cannot use the molar mass of butane): volume = 80 mL pressure = 98.23 KPa temp.= 298K So I found the number of mols and I got 0.003171814 mols. of butane. But I don't know what

    asked by Lena on December 12, 2008
  3. statistics

    At a large publishing company, the mean age of proofreaders is 36.2 years, and the standard deviation is 3.7 years. If a random sample of 15 proofreaders is selected, find the probability that the mean age of the proofreaders in the sample will be between

    asked by Cindy on October 22, 2010
  4. math

    After several drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, with one fourth being removed every hour, find the person's blood alcohol level after 2 hours.

    asked by liz on October 7, 2010
  5. physics someone please helpp

    A scuba diver has an air tank with a volume of 0.010 m^3. The air in the tank is initially at a pressure of 1.0x10^7 Pa. Assume that the diver breathes 0.400 L/s of air. Find how long the tank will last at a depth of each of the following. (a) 1.0 m min

    asked by Romy on April 25, 2012
  6. statistics

    1. Express the indicated degree of likelihood as a probability value. "There is a 40% chance of rain." 2. Find the indicated probability A bag contain 6 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly selected from the bag, what

    asked by george on August 29, 2007
  7. Math

    A painter bought some paint for $500. He paid $x for each litre of paint. He accidentally spilt 5 liters of paint and sold the remainder of the psint for $2/litre more than he paid for it. If he made a profit of $40, find the amount he paid for each litre

    asked by Jon on March 18, 2015
  8. Brain freezer a.k.a. MATH

    What does a scale factor between two similar figures tell you about the relationships between the length and area measures of the figures? The relationship is that you use the l&w to find the scale factor. you can make L&W ratios for each figure, then you

    asked by Crystal on January 4, 2007
  9. Math

    A carpenter sawed a piece of wood into 3 pieces of wood into 3 pieces. The ratio of wood pieces is 1:3:6. The longest piece is 2.5 feet longer than the shortest piece. Use the draw a diagram strategy to find the length of the original piece.

    asked by Anonymous on February 21, 2018
  10. Physics

    a ball of putty has a mass of 1.5kg and is rolling toward the north with a velocity of 2m/s. it collides with another putty ball with the same mass travelling towards the east with a velocity of 10m/s. find the velocity of the combined mass after a

    asked by Katie on February 23, 2018
  11. wcccd

    The period p of a pendulum, or the time it takes for the pendulum to make one complete swing, varies directly as the square root of the length L of the pendulum. If the period of a pendulum is 1.3 s when the length is 2 ft, find the period when the length

    asked by andre on October 18, 2015
  12. reading

    Daedalus was a Greek architect—a building designer—who was known for his ingenious inventions and projects. Daedalus designed, among other things, the Labyrinth, a maze of many paths. Famous throughout the world, the Labyrinth consisted of twisting

    asked by lana on October 18, 2015
  13. art history

    I have to do a report on prehistoric art and I want to do mine on Venus of Willendorf. We have to find one important event in history during this time but I cannot find any specific historic events. Can anyone help? This is a site on Pagan history:

    asked by cbarnett on October 16, 2006
  14. Probability Distribution

    An urn has fifteen red balls and nineteen white balls. Three balls are selected at random and the number of red balls are observed. Find the probability distribution for Number of Red Balls: 0 = 1 = 2 = 3 =

    asked by F0reveryoung on April 7, 2012
  15. Math

    200 elementary school students were surveyed to find their blood groups. Of those, 55 were of blood group A, 85 of blood group B, and 21 of blood group O. What is the probability that a randomly chosen student has either blood group A or blood group B? A)

    asked by Hailey on October 14, 2015
  16. Math

    A contractor buys 14 yd of nylon carpet and 20 yd of wool carpet for $1738. A second purchase, at the same prices, includes 16 yd of nylon carpet and 25 yd of wool carpet for $2102. Find the cost per yard of the wool carpet.

    asked by Sarah on December 13, 2015
  17. Calculus

    Find expressions for the quadratic functions whose graphs are shown. One graph has the point (4,2) plotted in which the parabola passes through (U-shaped parabola- right side up) The vertex is at (3,0) and the parabola does not touch the y-axis for as much

    asked by Chelsea on September 21, 2010
  18. physics

    A 5.0-cm real object is placed at a distance of 30.0 cm from a concave mirror of focal length 10.0 cm. Find the location of the image. A. 6 cm B. 10 cm C. 15 cm D. 60 cm Is it B. 10 cm? Which of the following objects can set fire to a piece of paper in the

    asked by sophie on April 6, 2009
  19. Calculus

    The approximate rate of change in the number of subscribers to wireless service is given by f’(t) = 1.498t + 1.626, where t represents the number of years since 1990. In 1992 (t = 2) there were approximately 8.893 million subscribers. Find the function

    asked by Corey on December 5, 2015
  20. algebra

    1) The formula for the final amount A in an investment with principal P and interest I (A=P+I. Determine the principal if A is $7,000.00 and I is $400.00 - is my answer correct 7,000.00 = P + 400.00 P = 7000.00 - 400 P = 6600.00 2) There is a diagram of

    asked by karen on October 17, 2007
  21. Chemistry

    I titrated 0.25g of soda ash mixed with 25mL of deionized water and it took 43.7mL of hydrochloric acid to complete the titration. I am trying to figure out how to find the moles of sodium carbonate in the soda ash and then the percent of sodium carbonate

    asked by Zach on October 21, 2012
  22. physics

    A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane. Find the coin's period T in seconds, that

    asked by Anonymous on July 29, 2013
  23. Math

    Ok so I have this word problem that I can't figure out. Help please!! Sandra is trying to use her old cell phone to call her best friend. She can be no more than 3 miles from a tower in order to get a signal for her phone. If the telephone tower is 252

    asked by Emma on March 12, 2012
  24. Math

    Two cars run at constant speeds around a one-mile racetrack. The faster car passes the slower car every two minutes if the cars run in the same direction. If they run in opposite directions, they meet every 15 seconds. Find the speed of the faster car in

    asked by Bob on May 7, 2013
  25. statistics

    A sample of 106 students, the researchers reported the following statistics...mean= 13.2 s=19.5 Explain why the distribution for these 106 students cannot be symmetric and given this, what % of 106 students fall within the x+/-2s? I understand it cannot be

    asked by helpthedumbie on September 13, 2013
  26. geometry

    In circle P, arc EN=66, angle GPM=89, and GN is the diameter. Find the measure of angle EGN. The answer is 33º but I'm not sure how you get it. There is a theorm that says the inscribed angle of a circle arc is 1/2 the arc (or one half the central angle).

    asked by Emily on March 16, 2007
  27. algebra homework check

    The monthly rents for the apartments in a Business building are listed below. $425, $550, $550, $550, $650, $650, $650, $650, $800, $900 Part A: Find the mean$637.50 median=$650 mode=$650 range=$475 and standard deviation of the rents???

    asked by jenny on May 25, 2012
  28. physics

    While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.25. The pushing force is directed downward at an angle θ below the horizontal. When θ is

    asked by Anonymous on February 8, 2013
  29. math

    When writing an equation in point-slope format, is it not proper to fully solve for y? For example, here is my problem: Find the point-slope equation for a line containing the point (-7, 2) and the slope m = 3. The answer was this: y – 2 = 3(x + 7) I was

    asked by Carly on October 8, 2018
  30. Physics

    Point A is 5 m from a loudspeaker. At point B, the loudspeaker sounds half as loud as at point A. How far is point B from the loudspeaker? I get 50 m, but the answer is supposed to be 15.8 m. I need to know what I'm doing wrong. By my (apparently flawed)

    asked by Reed on February 10, 2010
  31. Math

    Please help me. You work every Sunday in the yard from 8:00 A.M. To 11:30 A.M. Draw a diagram that shows the rotation completed by the hour hand of a clock during this time. Find the measure of the angle generated by the hour hand in both degrees and

    asked by Stephanie on September 18, 2016
  32. math

    * I posted this before, but I left out the equation, sorry. A company estimates that the marginal cost (in dollars per item) of producing x items is 2.08x-0.002x. If the cost of producing one item is $531 find the cost of producing 100 items. Please round

    asked by Sam on April 14, 2007
  33. Physics-- please help me finish!!

    Ive tried using the formulas my teacher gave me, however I can't seem to get the right answers. Please help! A 1.4-kg block hangs from a spring. A 363-g body hung below the block stretches the spring 2.6 cm farther. What is the spring constant? When the

    asked by Madison on April 26, 2013
  34. math

    A test consists of 120 questions. Each correct answer, each wrong answer and unanswered question in the test carry 1 Mark, 0.5 Mark and 0.25 Mark respectively. Find the maximum number of questions that the candidate could have answered wrongly in the test,

    asked by sandra on November 18, 2014
  35. physics

    1.A body with an initial velocity of 18km/hr accelerates uniformly at the rateof 9cm/sec2over a distance of 200m.Calculate, a)the acceleration in m/sec2 b)its final velocity in m/s 2.The distance travelled by a body moving with uniform acceleration in the

    asked by srikar on May 19, 2012
  36. physics

    A stone is thrown from a building of height 40m and reaches a maximum height of 49m from the ground. The stone strikes the ground at a distance of 10m from the foot of the building. find the angle of elevation from which the stone is projected. Assuming

    asked by ridhi on May 16, 2012
  37. vaporization lab

    A graduated cylinder containing some air is immersed in water. The height between the the water surface and the top of the water inside the graduated cylinder is 106mm. Calculate the correction that must be added to the barometric pressure to find the

    asked by mmeas on November 28, 2010
  38. Physics

    While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.27. The pushing force is directed downward at an angle θ below the horizontal. When θ is

    asked by Anonymous on October 13, 2014
  39. physics

    A mass of 0.04 kg is attached to a cord passing through a small hole in a frictionless, horizontal surface. The mass is initially orbiting with speed 4.9 m/s in a circle of radius 0.4 m. The cord is then slowly pulled from below, decreasing the radius of

    asked by will on October 19, 2011
  40. physic

    A ball is launched horizontally at 5 m/s from the top of a 45 m tall building. A man stands at rest 6 m from the base of the building. If there is a 0.3 s reaction time for the man to start moving once he sees the ball launched, find the magnitude of the

    asked by Natalie on September 28, 2014
  41. Physics

    A 4.2 m diameter merry go round is rotating freely with an angular velocity of 0.8 rad/s. If its total moment of inertia is 1760 kg*m2, find the angular velocity of the merry go round when four people of 72 kg jump onto the edge of the merry go round.

    asked by Anonymous on August 4, 2015
  42. Math

    y=arccos(sin(x)), find dy/dx and sketch it's graph(I guess I can do this on wolframalpha after I'm done solving the question). And by arcsin I mean inverse of the expression(written like cos^-1(sin(x)), but is not 1/cos(sinx) but the inverse of cos). I am

    asked by Beth on January 4, 2016
  43. math

    On Saturday, the fruit and juice bar was selling 23 glasses of fruit punch an hour. By 4 p.m., they had sold 138 glasses. If their goal was to sell at least 276 glasses of fruit punch, which inequality can be used to find h, the number of hours they must

    asked by Anonymous on May 17, 2012
  44. Calculus

    Use the position function s(t)=-4.9t^2+ 150, which gives the height (in meters) of an object that has fallen from 150 meters. Teh velocity at time t=a seconds is given by: lim as t approaches a s(a)-s(t) divided by a-t a) find the velocity of the object

    asked by Leah on August 31, 2007
  45. 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

    asked by George on October 21, 2008
  46. PHYSICS

    A 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 80 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest

    asked by JULIA on October 5, 2010
  47. Physics

    Could someone please help me with my homework problem... a) Give the equation for terminal speed in the variables from Stoke's Law, and the densities of the sphere Ps and the fluid P1. b) Find the viscosity of motor oil (in kg/m/s) in which a steel ball of

    asked by Meg on November 7, 2017
  48. Algebra 1

    Driving down a mountain, Tom finds that he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredth. slope= descent/horizontal change 1800 feet to

    asked by Julie on February 3, 2007
  49. Analytical Chemistry

    A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an

    asked by Matt on February 27, 2017
  50. Business Communication

    Which of the following is the BEST advice for increasing the number of "hits" on a scannable resume? (a) Avoid jargon of any sort (b) Use a keyword section under your name, address, and phone (c) use more verbs than nouns (d) use only one page. After

    asked by Anonymous on April 20, 2009
  51. American Constitutional Law

    Is the federal government obligated to avoid denying persons the equal protection of the law? Why or why not? A. No, because the equal protection clause only applies to the states. B. Yes, because it's the right thing to do. C. No, because the federal

    asked by Pat on August 31, 2014
  52. algebra

    Suppose a market research company finds that at a price of p=$25,they would sell x=56 tiles each month. If they lower the price to p=$20, then more people would purchase the tile, and they can expect to sell x=66 tiles in a month's time. Find the equation

    asked by rr on May 21, 2012
  53. physics

    A 9.5-kg monkey is hanging by one arm from a branch and is swinging on a vertical circle. As an approximation, assume a radial distance of 70 cm between the branch and the point where the monkey's mass is located. As the monkey swings through the lowest

    asked by Anonymous on July 19, 2010
  54. physics

    A motorcycle (mass of cycle plus rider = 3.0 102 kg) is traveling at a steady speed of 20 m/s. The force of air resistance acting on the cycle and rider is 1.8 102 N. Find the power necessary to sustain this speed under the following conditions. (a) the

    asked by joshua on October 26, 2010
  55. Math

    1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' tubes.

    asked by Rana on December 7, 2013
  56. math

    Suppose that a market research company finds that at a price of p=$25, they would sell x= 53 tiles each month. If they lower the price to p=$15, then more people will purchase the tile, and they can expect to sell x = 63 tiles month’s time. Find the

    asked by Anonymous on November 27, 2010
  57. statistics

    Suppose the method of tree ring dating gave the following dates A.D. for an archaeological excavation site. 1248 1187 1199 1236 1206 1241 1185 1288 1239 Find an 80% confidence interval for the mean of all tree ring dates from this archaeological site.

    asked by Anonymous on November 13, 2010
  58. Math

    6.An aqaurium is 80cm long, 40cm wide, and 40cm high. What is its volume? I got 128,000cm3 One cubic centimeter (cm3) holds 1 milliliter of water. 1,000 cm3 hold 1 liter. How many mL will the tank in problem 6 hold? How many liters? How do I find out how

    asked by Jaycee on January 21, 2012
  59. Maths

    A swimming pool is being emptied and the amount of water remaining in the pool after t minutes after emoting commences is given by: Time t (min) Volume V (L) 0 30000 20 28800 40 25200 60 19200 80 10800 Find the equation describing the volume of water

    asked by Amelia on October 30, 2016
  60. trigonometry

    the pilot in an airplane observes the angle of depression of a light directly below his line of sight to be 30.4 degrees. a minute later, its angle of depression is 43.0 degrees. if he is flying horizontally in a straight course at the rate of 150 mph,

    asked by rhinechilde on August 26, 2014
  61. physics

    A horizontal board weighing 227.0 N is supported at points A and B. The plank is 3.8 m in length, and points A and B are sawhorse supports a distance of D in from each end of the plank. The plank serves as a platform for a painter, who weighs 553.0 N. Find

    asked by Michael on April 27, 2010
  62. Algebra II

    Suppose a market research company finds that at a price of p = $20, they would sell x=42 tiles each month. If they lower the price to p = $10, them more people would purchase the tile, and they can expect to sell x = 52 tiles in a month's time. Find the

    asked by Nancy on January 13, 2011
  63. math, HELP ME PLEASE!

    A polling company took 5 polls in the week before an election. It showed that a mayoral candidate would get 66%, 56%, 55%, and 63% of the voters. That candidate received 64% of the total votes during the actual election. Find the percent error in the

    asked by syram on March 21, 2013
  64. trig length

    To secure a 610-meter radio tower against high winds, guy wires are attached to a ring on the tower. The ring is 7 meters from the top. The wires form a 69o angle with the ground. To the nearest hundredth meter find the length of the guy wire

    asked by Anonymous on May 27, 2014
  65. bio

    Find a media piece—article, video, presentation, song, or other—related to the scientific method, creating hypotheses, or designing experiments. Include the link or reference citation for the piece and describe how it helped you better understand how

    asked by Anonymous on July 25, 2011
  66. math

    The Connecticut River flows at a rate of 5 km / hour for the length of a popular scenic route. If a cruiser to travels 4 hours with the current to reach a drop-off point, but the return trip against the same current took 6 hours. Find the speed of the boat

    asked by duran on May 11, 2016
  67. Dynamics of Rigid Bodies

    A 40 lb missile moves with a velocity of 150 ft/sec. It is intercepted by a laser beam which causes it to explode into two fragments A and B which weigh 25 lb and 15 lb, respectively. If the fragments A and B travel 45 degrees counter-clockwise from

    asked by Anonymous on April 10, 2013
  68. microeconomics

    Given demand curve P=400-.05Q, at what price is total revenue maximized? There are a number of ways to do this problem. Let me use simple calculus. Total Revenue is P*Q=400Q-.05Q^2. Take the first derivitive wrt Q. MR=400-.1Q To maximize, find Q when

    asked by greg on May 1, 2007
  69. Calc

    I'm trying to write an equation for all the infinite values of the equation -i ln(2 + sqrt(3) ) people have told me that its pi(2n + 1) -i ln(2 + sqrt(3) ) I don't see how so I plug in numbers for n and don't get the same answer usign my calculator please

    asked by Kate on July 27, 2010
  70. chemistry

    Determine the potential (V) by which a proton must be accelerated so as to assume a particle wavelength of 0.0293 nm. ---- This is what I did, dunno if right - wavelength in meters = 2.93*10^-11 m - used DeBroglie relation to find energy lambda = h / mv, v

    asked by Will on August 24, 2014
  71. psy

    Ms. Sue I need some data to help me discussed this question. How have you used the scientific process (unsystematic observation, building theories, and evaluating propositions) in your life to better understand your personality? Provide an example. I read

    asked by rose (Ms. sue) on October 17, 2008
  72. Math

    1)Forty solid hemisphere each of diameter 2cm , are melted to form a solid cone with a base diameter 6cm .Find the height of the cone? 2)A pyramid has a square base of side 12cm and a height of 15cm .Calculate its volume and total surface area?

    asked by Reshma on May 23, 2011
  73. 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 0.0037 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.7 102 ft/s,

    asked by Allie on October 4, 2011
  74. statistics

    in a sample of 1000 people ,113 are left handed.the results of the sample are shown in the table.find the probability that a randomly selected person is a left handed,given that she is a woman.

    asked by ron on October 4, 2011
  75. Math.. how to get linear function

    The total length y is a linear function of the tail length x with great accuracy. The domain is the interval from 30mm to 200mm, and the range is the interval from 200mm to 1400 mm. The following two points are given: X0= 60mm, Y0= 455mm, X1=140mm, Y1=

    asked by Jack on October 13, 2012
  76. Economics

    . Suppose the demand curve for a monopolist is QD =500 - P, and the marginal revenue function is MR =500 – 2Q. The monopolist has a constant marginal and average total cost of $50 per unit. a. Find the monopolist’s profit – maximizing output and

    asked by Michelle on August 23, 2012
  77. math (algebra)

    Water boils at 212 degrees F at sea level (altitude 0 ft), 204.6 degrees F at 40000 ft, 197.2 deg. F at 8000 ft, and 189.8 deg. F at 12,000 ft. Find a good model relating the boiling temperature t of water to the altitude a.Is the model linear or

    asked by Layne on May 3, 2009
  78. Math Help!

    1.) Solve the system by graphing. You may use paper or a calculator. 2x - y = 8 x + 3y = 11 2.) The revenue for a certain brand of toothpaste is y = 2.5x where 'x' is the number of tubes of toothpaste sold and 'y' is the total income for selling 'x' tubes.

    asked by Rana on December 7, 2013
  79. Finance

    Stormy Weather has no attractive investment opportunities. Its return on equity equals the discount rate, which is 10%. Its expected earnings this year are $2 per share. Find the stock price, P/E ratio, and growth rate of dividends for plowback ratios of

    asked by ted on February 10, 2016
  80. Art

    For this question it asks, what types of material changes were made in building Greek temples and what effect this had on the architectural world. In my book, It says how the earliest Greek temples were made of wood or brick, which later changed to marble

    asked by Bella on May 10, 2012
  81. help meee

    A cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0.03 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.05 cents per

    asked by Sid on October 14, 2017
  82. Calculus

    A fence is to be built to enclose a rectangular area of 280 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 15 dollars per foot. Find the length L and width W

    asked by Z32 on November 2, 2009
  83. physics

    A hiker begins a trip by first walking 25.0 km 45.0° south of east from her base camp.On the second day she walks 40.0 km in a direction 60.0° north of east, at which point she discovers a forest ranger’s tower.Find the magnitude of the displacement

    asked by jasmeen on December 3, 2015
  84. calculus

    Throughout the 20th century, the yearly consumption of electricity in the US increased exponentially at a continuous rate of 7% per year. Assume this trend continues and that the electrical energy consumed in 1900 was 1.4 million megawatt-hours. Find the

    asked by Cookie on January 19, 2012
  85. Chemistry

    The half life of U238 is 4.5 x 10^9 yr. A sample of rock of 1.6 g produces 29 dis/sec. Assuming all radioactivity is due to U238 find percent by mass of U 238. I have tried ln(t)/ln(0)= -kt and still cannot get the answer What I get is A) 4.5x10^9

    asked by Nancy on September 22, 2013
  86. algebra

    Suppose Paul kicks a soccer ball straight up into the air with an initial velocity of 96 feet per second. The function f(x) = -16t2 + 96t gives the height, in feet, of the soccer ball after t seconds.Show all work to find the axis of symmetry

    asked by sydney on August 7, 2015
  87. math

    There is a diagram of a running track. The track is made up of two straights and two semicircles. The radius of each semicircle is 35 meters. The length of the outer perimeter of the entire running track is 400 meters. Find the length of one of the

    asked by Melanie on May 19, 2016
  88. economics

    Suppose the demand curve for a monopolist is QD = 500 − P, and the marginal revenue function is MR = 500 − 2Q. The monopolist has a constant marginal and average total cost of $50 per unit. a.Find the monopolist’s profit-maximizing output and

    asked by Em on October 17, 2013
  89. Clinical Calculations

    Suppose that the adult dosage for a given medication is 150 milligrams​ (mg) per day for every 9 kilograms​ (kg) of body weight. ​a) At this rate find the daily dose for a man who weighs 117 kg. ​b) If the man is to receive 500 mg of this

    asked by Hannah on June 17, 2017
  90. Physics

    A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 7.83 m/s at the

    asked by S on November 2, 2014
  91. Math

    A cylinder shaped can needs to be constructed to hold 400 cubic centimeters of soup. The material for the sides of the can costs 0.03 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.06 cents per

    asked by jonh on March 10, 2013
  92. Physics

    An airplane is flying in a horizontal circle at a speed of 482 km⁄h. The wings of the plane are tilted at 38.2° with respect to the horizontal as shown in the figure below. Find the radius of the circle in which the plane is flying. Assume that the

    asked by Chrxeyshthoufov on February 23, 2014
  93. algebra2

    Sian and Daniel are researching information on earthquakes in the U.S. One of the largest was centered in San Francisco in 1906. It measured 7.8 on the richter scale. a. find the amount of engr. released by the earthquake. b. Sian says the amount of energy

    asked by amber on June 1, 2015
  94. Language Arts

    How do I find out what a block style letter, and what a semi-block style letter is, and how do I see a picture of it? Here are some good illustrations and explanations: http://englishplus.com/grammar/00000150.htm

    asked by Jolena on April 16, 2007
  95. physics

    A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 4.43 m/s at the

    asked by Anonymous on April 22, 2014
  96. Physics

    A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore frictional losses and assume that the mass of the ball is distributed uniformly. The translational speed of the ball is 5.40 m/s at the

    asked by Shawn on November 1, 2014
  97. physics

    A car's wheel of radius r=50cm goes through 5000rev in 1min. find the car's average angular velocity,and how far it travels along the ground in 1min. The linear speed v and angular speed w of the point of a rotating body are connected by the equation v=wr.

    asked by Sarah on March 10, 2015
  98. algebra

    Market research has shown that at a price of $230, 100 number of plasma TV’s are sold and if the price is reduced to $190, then 200 number of TV’s are sold. Find the equation that represents this demand curve and state in the form of p=mx+b (Slope

    asked by Crystal on December 19, 2010
  99. Math algebra

    The radioactive decay of a substance is expressed by A=A^0 e^ -kt, where the initial amount A^0, decays to an amount A after t years. The positive constant k differs for each substance. Strontium 90 decays such that k=.028. Find out how much of 1,000 mg of

    asked by Emily on December 15, 2016
  100. Calculus

    'Find the volume of the solid generated by revolving the region bounded by x=16-y^2, x-axis, and y-axis around the x-axis.' I know in theory how to do it, but I'm a little confused by what constitutes the bounded region because it's a sideways parabola,

    asked by CodyL on January 8, 2018

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