1. math

    Sally has 6 more than three times the number of shoes Sandra has. If, (s) is the amount of shoes Sandra owns,which expression show the amount of Sally's shoes. A. 3+6s B 3s-6 C. 6-3s D. 6+3s

    asked by vera on February 10, 2013
  2. Algebra 1 Answer Check (Reiny)

    Identify which lines are parallel. 1. y = 6; y = 6x + 5; y = 6x - 7; y = -8 A: y = 6; y = -8; y = 6x +5; y = 6x - 7 (all) 2. y = 3/4x - 1; y = -2x; y - 3 = 3/4(x - 5); y - 4 = -2(x + 2) A: y = 3/4x - 1; y- 3 = 3/4(x -5) Identify which lines are

    asked by Anonymous on December 2, 2013
  3. satistical mobeling

    there are 12 horses in a horse show competition. the top three winning horses receive money. how many possible money winning orders are there for a competition with 12 horses ?

    asked by kaleem on October 19, 2016
  4. math URGENT!!!!

    the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. please answer and show how u did it step by step please!!!! how do i find area of the smaller triangle?

    asked by dan on October 25, 2012
  5. Calculus

    F(x) = 1-x and g(x) = 1/x These functions have the property that f = f^-1(inverse) and g = g ^-1. That is, the inverse of f is equal to itself and the inverse of g is also equal to itself. Take the composition of each function with itself to show that this

    asked by Scooby16 on September 23, 2011
  6. math

    you are 6 years older than your sister she is 4 years older than your brother. write expressions to show your age and your sisters age if your brother is 4 years old.

    asked by debbie on January 10, 2013
  7. American Government

    1) Why are independent regulatory commissions considered quasi-legislative? A) They are part of the legislative branch B) The rules and regulations they make have the force of law** C) They are independent of the executive branch but not the legislative

    asked by Juliet on November 17, 2016
  8. World History

    I can't find any info in regards to creation, expansion, and interaction of economic systems in central Africa during the time span: 600-1450. I've tried many resources and I can't find any info on agricultural and pastoral production, trade and commerce,

    asked by Anonymous on November 12, 2007
  9. Physics

    A lump of lead with mass 0.5kg is dropped from height of 20m onto a hard surface it doesn't rebound but remains there at rest for a long period of time. A, find change in heat , change in work, change in internal energy for the lead during this process?

    asked by Yeabsera on September 29, 2018
  10. Physics

    A lump of lead with mass 0.5kg is dropped from height of 20m onto a hard surface it doesn't rebound but remains there at rest for a long period of time. A, find change in heat , change in work, change in internal energy for the lead during this process?

    asked by Faf on December 22, 2016
  11. Intro to Physics

    A sample of an unknown material appears to weigh 295 N in air and 165 N when immersed in alcohol of specific gravity 0.700. (a) What is the volume of the material? ___________m^3 (b) What is the density of the material? ____________ kg/m3 I am getting the

    asked by Amy on November 7, 2012
  12. english

    persuasive appeals (A) tone (D) ethos (E) pathos (B) logos (C) A) an appeal to logic B) the emotions that a speaker demonstrates towards his or her subject C) an appeal to the credibility of the speaker D) an appeal to a sense of right and wrong E) devices

    asked by kevin on April 8, 2012
  13. Pre-Algebra

    I need to check my work... estimate the following products or quotients 17 11/12 divided by 6 1/10 The first step I did was convert to improper fraction then I multiplied after changing the reciprical, and then I multiplied the numerators and then

    asked by Anonymous on July 31, 2009
  14. Statistics

    A superstore manager wishes to give out a survey to a sample of 25 of its workers. It wants the sample to be a good representation of the workers. The table shows the numbers of workers in each section of the work force: Working tills: 32 Stacking shelves:

    asked by David on October 10, 2010
  15. chemistry

    why doesnt the radius ratio rule work for TlCl3??? the division would be the radius of the cation / radius of the anion. For Tl3+ and Cl-...88pm/181pm = .49 which would correspond to a 'zinc blende' crystal structure and not a CsCl type crystal as the rest

    asked by matthew on March 7, 2015
  16. Calculus

    "The illumination of an object by a light source is directly proportional to the strength of the source and inversely proportional to the square of the distance from the source. Two streetlights are 40m apart and one is twice as strong as the other. Where

    asked by Stuck on June 20, 2010
  17. Social studies

    Over time artwork has the potential to reach a wide variety of audiences. Which is the most accurate definition of audience? A group of people listening to music. Physical evidence of a culture. A group of people with specific beliefs and practices. (This

    asked by LOVE on March 9, 2016
  18. Physics

    A lump of lead with mass 0.5kg is dropped from height of 20m onto a hard surface it doesn't rebound but remains there at rest for a long period of time. A, find change in heat , change in work, change in internal energy for the lead during this process?

    asked by Faf on December 22, 2016
  19. math

    Show that the surface area of a sphere is two thirds of the total surface area of any cylinder circumscribed around the sphere (the sphere therefore touches both bases of the cylinder as well as its lateral surface).

    asked by maath on July 30, 2018
  20. algebra

    The ratio of quarters to dimes in a coin collection is 5:3. You add the same number of new quarters as dimes to the collection. a. Is the ratio of quarters to dimes still 5:3? b. If so, illustrate your answer with an example. If not, show why with a

    asked by larrie on February 27, 2015
  21. math

    how would you show his problem as a bar model A box of chalk and 2 staplers cost $10.3 boxes of chalk and 2 staplers cost $18.Find the total cost of 1 box of chalk

    asked by anna on September 7, 2016
  22. Physics

    The drawings show three charges that have the same magnitude but different signs. In all cases the distance d between the charges is the same. The magnitude of the charges is |q|= 5.5 µC, and the distance between them is d = 4.3 mm. Determine the

    asked by Don on February 3, 2013
  23. micro economics

    A) Assume that during a particular hour the following 37 bids (demand = load) were observed in the NordPool (first entry is Load in 1000 MWh (= Q), and second entry is €/MWh (= P)).

    asked by Darwon on September 2, 2017
  24. electric markets

    A) Assume that during a particular hour the following 30 bids (demand = load) were observed in the NordPool (first entry is Load in 1000 MWh (= Q), and second entry is €/MWh (= P)).

    asked by hello on September 5, 2017
  25. Physics

    A rat with mass 0.5 kg is sliding down an inclined plane. The plane is at an angle of 34⁰ with respect to the ground, and the coefficient of friction between the rat and the plane is 0.2. Simultaneously, a cat is giving the rat a push UP the hill, with a

    asked by Shalece on November 30, 2013
  26. Calculus

    Hi there I am having some troubles trying to do my calculus homework and I really need help trying to do this problem from my homework: Set up the problem and do not solve: The mass of the solid bounded by the surfaces 2x^2 + 2y^2= 9, z=0, z=3 with density

    asked by shylo on December 3, 2009
  27. Business Math

    Solve the following by using the present value formula. Compound Amount- $700 Time Period(years)-8 years Nominal Rate (%)- 1.5 Interest Compounded monthly Compound Amount___________? Compound Interest _________?

    asked by Tracey on July 15, 2016
  28. .Chemistry Help please?

    This type of question come in our exams usually that. If the Reaction P+Q → R + S is described as being of zero order with respect to P, it means that. Answer: THE RATE OF REACTION IS INDEPENDENT OF THE CONCENTRATION OF P. I want to ask that, what is

    asked by Shahab Mirza on October 3, 2014
  29. Physics

    A ball is thrown horizontally from a height of 16.01 m and hits the ground with a speed that is 5.0 times its initial speed. What was the initial speed? This question really boggles my brain. I have no idea how to solve this, given only the height. Could

    asked by Lindsay on November 4, 2007
  30. Math (integrals) (Substitution)

    I am given an integral to solve with given substitution values. I got an answer, but I'm not quite sure if it's correct as an online integral calculator gave a different answer. ∫ x sqrt(4-x) dx Given that u = 4-x . In this case, x = 4 - u du = -dx Now..

    asked by Ray on May 5, 2017
  31. maths

    solve the word problem (rates per kg) 1) Mary buys 7 kg peaches,and 5 kg bananas . what is the totala cost? 2)Sarah buys 1kg apple for herself and another 1 kg grapes for her brother . she also buys 2 kg peaches . what is the total cost?

    asked by Anonymous on July 30, 2012
  32. math

    Solve the problem.A cyclist bikes at a constant speed for 25 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 30 miles. Find his speed.

    asked by uyi on March 30, 2016
  33. Calculus

    A company offers the following schedule of charges: $30 per thousand for orders of 50,000 or less with the charge per thousand decreased by 37.5 cents for each thousand above 50,000. Find the order which will make the company's receipts a maximum? How do

    asked by A company offers the following schedule of charges on December 2, 2012
  34. math,correction&help

    Is this right:if it still needs more can someone help me out what else can i say....thanks why are polynomials important? polynomials are important because the are used to determine and solve the unknowns in equations. Many natural processes can be modeled

    asked by jas20 on March 4, 2007
  35. HELP!

    What caused states to demand a constitutional Convention and explain why? What three issues caused the most conflict during the Constitutional Convention and why? How did the COnstitutional delegates solve these problems? Plese tell me good site and teach

    asked by cc on October 19, 2006
  36. math

    After making a deposit, Puja had $264 in her savings account. She noticed that if she added $26 to the amount originally in the account and doubled the sum, she would get the new amount. How much did she originally have int he account? **Write an equation

    asked by kimie on November 11, 2015
  37. math

    the distance that a body falls through when dropped from a certain height varies directly with the square of the time of fall. A body falls through a total of 500m in 10 seconds. find the distance it falls through, in 9th second (in m) Please help me solve

    asked by nimal on January 23, 2015
  38. Algebra

    kaylin throws two dice. the difference in face value between the two dice is three, and the product of the numbers thrown is equal to twice the sum of two numbers. Write and solve an algebraic equation that finds the numbers kaylin threw.

    asked by JD on May 3, 2012
  39. Physics

    Can anyone help with which formula I should use to solve this: During a head on car crash, the car is designed to slow down as its front end crumples. If a person can survive an acceleration of -33 m/s how far must the front end crumple if the car was

    asked by Lynn on June 17, 2013
  40. Think-A-Gram

    How do you solve this think-a-gram: picture a square with letters PLAPOWERCES in the top part of the square. I thought the answer would be places^2 since the word POWER is in the middle of place and the letters are in a "square", which is at the top, but

    asked by Chocalate Frost on November 10, 2012
  41. Math

    To win a trivia game you need atleast 60 points. Each question is worth 4 points. So far , you have earned 24 points. Write and solve an inequality that represents the number of questions you need to answer correctly to win a game.

    asked by Aniyah on March 27, 2017
  42. chemistry HELP DRBOB

    Calculate the sodium ion concentration when 80.0 mL of 4.5 M sodium carbonate is added to 30.0 mL of 1.0 M sodium bicarbonate. how do i solve this I don't really know where to begin.. is there a formula for finding concentration because we don't learn this

    asked by lyne on March 10, 2009
  43. Alg. 2

    I know how to graph polynomial functions, but i'm having a hard time getting the second point on this one. f(x)=x(x-1)(x+2)(x+2). I graphed my zeros and made the right arrow go up and the left arrow go down. I plotted my first point by pluggin in -1. My

    asked by Miley on February 13, 2008
  44. Physics

    You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert a constant horizontal force of 114 N, the sled has an acceleration of 2.3 m/s2 If the sled has a mass of 7.6 kg, what is the mass of your little sister? I

    asked by Help Please on October 25, 2012
  45. 5th grade math (word problems)

    I'm not sure how to solve this problem. I know that i need to divide 36 cookies. But not sure how to figure out the number of groups. Am i using multiples of 4? Marie made 3 dozen cookies. She needs to dived them evenly into groups greater than 4. What are

    asked by Alex on March 27, 2013
  46. Math

    A satellite dish in storage has parabolic cross sections and is resting on its vertex. A point on the rim is 4 ft high and is 6 ft horizontally from the vertex. How high is a point which is 3 ft horiozntally from the vertex? Draw a sketch and solve.

    asked by Dinh on May 8, 2014
  47. math

    the distance that a body falls through when dropped from a certain height varies directly with the square of the time of fall. A body falls through a total of 500m in 10 seconds. find the distance it falls through, in 9th second (in m) Please help me solve

    asked by nimal on January 23, 2015
  48. Math Teacher Certification Exam

    Person A has 6.24 and Person B has two cents more than twice Person A. How much money will they have if they combined their money? I had this confusing word problem yesterday on a Teacher Certification Exam for PreK-3 grade. Please help clarify how to set

    asked by Miyiah on January 17, 2016
  49. Physics Honors

    Consider planet mass of 4.98 E 21 kilograms with a satellite orbitting it at distance of 3.11 E 6 meters from planet's center. Satellite has mass of 369 kilograms. How long (inseconds) does it take the satellite to make one complete orbit around planet. I

    asked by Joan on March 11, 2008
  50. Physics 12

    A flag of mass 2.5 kg is supported by a single rope as show in figure 13. a strong horizontal wind exerts a force of 12 N on the flag. Calculate the tension in the rope and the angel, the rope makes with the horizontal. here is the figure:

    asked by Lola on October 1, 2013
  51. Math

    Please help me with my midterm review my teacher was out sick today and idk how much longer she will be but my midterms Thursday. She only helps people who she has seen done there midterm review and gotten over half of it right so can any of you please

    asked by Mark on October 20, 2015
  52. business

    Appendix E Store Operations Messages Iam not sure how to write a message using this: You are a public relations manager called upon to present information regarding changes in retail store operations to three sets of stakeholders of a clothing store chain.

    asked by Sara on July 26, 2010
  53. Biology

    1. Which of the following is the definition of ecology? the social movement with a goal to protect the environment the recycling of human-made materials to reduce waste going into landfills the study of interactions among organisms and between organisms

    asked by Anon on August 24, 2012
  54. Math

    A survey was made of 200 students to study their use of the public library system. The findings were as follows: 60 used the Reader’s Guide. 28 used both the card catalog and the information booth. 68 used the information booth. 83 did not use the

    asked by Abby on June 6, 2010
  55. Economics

    The firm currently uses 50,000 workers to produce 200,000 units of output per day. The daily wage per worker is $80, and the price of the firm’s output is $25. The cost of other variable inputs is $400,000 per day. Assume that total fixed cost equals

    asked by Angela on May 23, 2011
  56. Physics

    Light of wavelength 469 nm passes through a slit, creating a diffraction pattern on a screen. The angular separation between the first diffraction minima on either side of the central maximum is 6.0∘ . Determine the width of the slit. I used this

    asked by Po on November 30, 2016
  57. Chemistry

    The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of gold (19.3 g/cm3) and its molar mass (197 g/mol) to calculate an approximate atomic radius for gold. Work So Far:

    asked by Caroline on February 3, 2015
  58. Math

    This expression 1.8C + 32, show how to convert from degrees Celcius to degrees Fahrenheit, where C represents the temperature in degrees Celcius. What is the temperature in degrees Farrenheit when the temperature is 25 degrees Celsius?

    asked by Amy on December 10, 2014
  59. math

    Susan has 50ft of fencing to use to build a garden in her backyard. A: The shape must be a rectangle/square. B: Sketch at least five different examples that Susan could use for her backyard and state what the perimeter of each one is. C: The most important

    asked by Katherine on January 8, 2011
  60. Quantum mechanics, eigenfunctions!

    Determine if the function sin(x)*e^(ax) where a=constant is an eigenfunction of the operators d/dx and d^2/(dx)^2 Okay. My understanding is that you use the operator and perform its "thing" on the function. In this case, you will have to find the 1st

    asked by Steven on October 8, 2009
  61. Physics

    A rock thrown from a bridge hits the water below at a horizontal distance x directly below the throwing point. The rock travels a smooth parabolic path in time t. a. Show that the virtical distance of the bridge above water is 1/2gt^2. b. What is the

    asked by Allen on July 17, 2011
  62. PHYSICS

    HELP. I need to understand this for a test tomorrow. THANKS Consider planet mass of 4.98 E 21 kilograms with a satellite orbitting it at distance of 3.11 E 6 meters from planet's center. Satellite has mass of 369 kilograms. How long (inseconds) does it

    asked by Joan on March 11, 2008
  63. 5th grade teacher needs your help

    My class is planning a trip to the NY transit Museum. Before the trip, I plan on giving my students three lessons one will focus on the public transportation in the past, the other will focus on the history of the NY subway system and the other lesson will

    asked by thea on November 29, 2008
  64. differential calculus

    a SECURITY CAMERA is centered 50 feet above a 100-foot hallway. it is easiest to design the camera with a constant angular rate of rotation, but this results in a variable rate at which the images of the surveillance area are recorded. so, it is desirable

    asked by =) on September 16, 2014
  65. chemistry

    Calculate the equilibrium constant for the weak acid, CH3CH2CO2H, if the aqueous solution of CH3CH2CO2H that has an initial concentration of 1.97E-2 M has a [H+] of 5.00E-4. CH3CH2CO2H CH3CH2CO2 + H i know that to figure out the equilibrium constant it is

    asked by help!! on April 24, 2008
  66. Chemistry

    Benzene reacts with hot concentrated nitric acid dissolved in sulfuric acid to give chiefly nitrobenzene, C6H5NO2. A by-product is often obtained, which consists of 42.86% C, 2.40% H, and 16.67% N (by mass). The boiling point of a solution of 5.5 g of the

    asked by Luke on July 14, 2014
  67. algebra

    A school designer wants to create a whiteboard with the optimal dimensions to enhance learning. It is determined that if one side of the whiteboard is x+2y inches, the other side should be x^2+6xy-5y^2 inches. Write an algebriac expression for the area of

    asked by Laura on February 6, 2011
  68. chemistry

    Sulfuric acid is a strong acid and dissociates in water as shown in Reaction 4. Equation label: (4) Help Please!!!! H2SO4(aq) = 2H+(aq) + SO42-(aq) What is the hydrogen ion concentration, in mol dm−3, when 1.50 g of sulfuric acid is dissolved in water to

    asked by jim on February 13, 2013
  69. Chemistry

    Toluene, C6H5CH3, is a liquid similar to benzene, C6H6. It is the starting material for other substances, including trinitrotoluene (TNT). the molality of toluene in a solution that contains 26.2 g of toluene and 132 g of benzene. Calculate the molar

    asked by MJ on March 29, 2012
  70. MAth

    Describe a simple process for using rates and unit prices that might help someone who is having difficulty understanding these concepts. Include either an example one of your own to explain the solution process. 2. i cant think of anything please help

    asked by dawn on June 30, 2008
  71. chemistry

    5oocm3 of 1.0 mol dm3 of sodium hydroxide solution at room temperature was placed in a styrofoam cup and 25cm3 of 2.0 mol-dm3 of hydrochloric acid was added at the same temperature.The temperature rose by 15.2 degrees celsius. Calculate the heat of

    asked by marie haynes on March 8, 2015
  72. Mathmatics

    what is 11-5=12- 1/3t=1/5 That solution is not correct, the 1/3 is a multiplier so it can't be subtracted. If the original was (1/3)t = 1/5 then t = (1/5)*3 t= 3/5 if the poster meant 1/(3t) = 1/5 then 3t = 5 t= 5/3 First, if you have a question, it is

    asked by courtey on May 22, 2007
  73. Microeconomics help please!

    If someone colud help with these questions I would be very greatful, Ive been trying for awhile now and Im at my ropes end. 1)The perfectly competitive ice cream industry is assumed to be in long-run equilibrium. Suppose there is an increase in the market

    asked by crstudent on July 15, 2005
  74. Physics

    Finding a Lunar lander's Thrust? A 6000kg lunar lander is in orbit 50km above the surface of the moon. It needs to move out to a 200km -high orbit in order to link up with the mother ship that will take the astronauts home. How much work must the thrusters

    asked by Dan on April 12, 2011
  75. Physics

    A movable piston having a mass of 7.26 kg and a cross-sectional area of 5.26 cm2 traps 0.250 moles of an ideal gas in a vertical cylinder. If the piston slides without friction in the cylinder, how much work will the gas do when its temperature is

    asked by Lauren on April 28, 2011
  76. Physics

    cart A with mass: 512g (0.512kg) is on a horizontal table. the cart is connected to cart b with mass: 51.0g (0.051kg) through a string that is crossing a pulley. cart A is released from rest at 60 cm(0.60m), it passes a photogate with a velocity of

    asked by Help on December 20, 2012
  77. Physics

    A 17.9 kg block is dragged over a rough, hor- izontal surface by a constant force of 74.1 N acting at an angle of angle 32.3◦ above the horizontal. The block is displaced 72.4 m and the coefficient of kinetic friction is 0.242. Find the work done by the

    asked by Kaylee on June 22, 2014
  78. physics

    A horizontal force of 142 N is used to push a 47.0 kg packing crate a distance of 6.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s2 . If the crate moves with constant velocity, calculate a) the work done by the force. Answer in

    asked by #! on October 12, 2011
  79. Circuits 2

    Select all statements below that are TRUE. a.Transformers can increase both voltage and current at the output. b.Transformers can be used as an impedance matching element. c.Transformers work by coupling magnetic fields between coils. d. LVDTs measure

    asked by student on April 9, 2018
  80. College Physics PLEASE HELP

    A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is

    asked by Lori on February 23, 2013
  81. Medical Terminology

    Your boss expects you to stay late to cover the workload of a coworker who is out sick,but you are supposed to help your mother with some work on her house tonight. your are suffering from: 1. role overload 2. role conflict 3. role ambiguity 4. learned

    asked by Sabrina on February 18, 2013
  82. physics

    A horizontal force of 142 N is used to push a 47.0 kg packing crate a distance of 6.00 m on a rough horizontal surface. The acceleration of gravity is 9.81 m/s2 . If the crate moves with constant velocity, calculate a) the work done by the force. Answer in

    asked by #! on October 12, 2011
  83. Chemistry

    I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What

    asked by Help please on April 5, 2010
  84. science

    A 2:35 kg block is pushed 1:57 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of 67.5 degree with the horizontal. The acceleration of gravity is 9.8 m/s2. If the coefficient of kinetic friction between the

    asked by aksha on October 21, 2007
  85. Physics

    A man is 6 feet tall and wishes to have a "full length mirror" in his house, meaning a mirror that lets him see himself from top to bottom. He goes to the hardware store to get a piece of flat (plane) mirror that is just barely long enough to work. How

    asked by Jacob on September 3, 2012
  86. Japanese

    On thursday I posted a question. I had done most of the work I just didn't put those things in my book. I have figured out some of those that I posted on Thursday and I have done everything else but can someone tell me what these answers are in

    asked by Caity on April 15, 2011
  87. English

    I isolated the sentences I'd like you to check. Can you please have a look at them? 1) Basil and Dorian first meet at a party at Lady Brandon's. Basil's first reaction is (of)fear, because he knows he has met someone whose personality can absorbe both his

    asked by Henry2 on September 4, 2011
  88. Social Studies

    1.For what reason are Serhiy and his friends most likely to leave there village after High School? A.They cannot afford to afford to continue their education B.They are forced to join the military after they graduate from High School C.They want to look

    asked by Gracie on January 1, 2018
  89. Physics

    A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is

    asked by Lori on February 23, 2013
  90. Physics

    The box of a well-known breakfast cereal states that one ounce of the cereal contains 129 Calories (1 food Calorie = 4186 J). If 2.55% of this energy could be converted by a weight lifter's body into work done in lifting a barbell, what is the weight of

    asked by Anonymous on November 3, 2012
  91. Calculus

    Hello, I have a problem that says 'graph the level curve of f(x,y) = sqrt(4 - x^2 - y^2) at c = 0, 1, and 2.' I graphed these and checked my work with the answer in the back of the book. For c=0, I had a circle centered at the origin with radius 2, which I

    asked by Jonas on October 4, 2018
  92. science207

    Many ecologists and resource scientists work for government agencies to study resources and resource management. Do these scientists serve the public best if they try to do pure science, or if they try to support the political positions of democratically

    asked by tamika on June 26, 2011
  93. Physics help!!

    A team of dogs drags a 150 kg sled 1.39 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.236. The acceleration of gravity is 9.8 m/s^2. Find the work done by the dogs. Also, What is the energy

    asked by Elle on December 1, 2011
  94. Trig

    Half angle identities Find exact values of a) cos 1/2 b) sin 1/2 c) tan 1/2 based on: cos = 1/5 greater than 270 deg less than 360 deg. I get a) - rt 3/5 b) rt24/5 and c) does not work out at all .... Help please.. book says for answers a)-rt15/5 b) rt10/5

    asked by Don on January 1, 2012
  95. physics

    A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle with a constant speed of 4.0 m/s on a perfectly smooth horizontal tabletop. The radius of the path is 0.60 m. How much work does the tension in the string

    asked by jim on November 12, 2017
  96. Physics

    A young girl (m= 30 kg) rides a skateboard (m= 3.2 kg) at a speed of 4.2 m/s. (a) How much work does the girl have to do to bring herself to a stop? (b) How far does she travel if it takes 6.0 s to stop? (c) What is the magnitude of the stopping force? So

    asked by Marin on October 9, 2014
  97. psychology

    Need two peer reviewed articles to help me work on those questions. below Discuss how social psychology differs from other related disciplines (e.g., clinical psychology, general psychology, sociology). Explain the main types of research approaches/methods

    asked by rose on September 19, 2010
  98. Management

    The supervisor's job is to do which of the following? A. Help employees fulfill their needs for recognition, achievement, and satisfaction. B. Ensure employees achieve the organization's objectives at the expense of their own. C. Control employees' work to

    asked by Anonymous on September 16, 2017
  99. Biology

    Research and discuss an event in Charles Darwins' life that lead to his theory of evolution. Events could be directly in Charles Darwin's life or could be individuals whose ideas Darwin incorporated into his work. Besides the voyage to Beagle and the visit

    asked by Ashley on March 20, 2013
  100. algebra

    could someone check my answers to these few questions? "What is the equation of the line, in slope-intercept form, that goes through the point (-1, -8) with m = 3 ?" here's my work: y + 8 = -3(x + 1) [i put the values into the equation.] y = -3x + 5 [i

    asked by caduceus on November 8, 2013

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