Questions Asked on
May 7, 2011

  1. physics

    A 3.1-kilogram gun initially at rest is free to move. When a 0.015-kilogram bullet leaves the gun with a speed of 500. meters per second, what is the speed of the gun?

    asked by ashley --- HELP PLEASEE!!!
  2. finite math

    The price of a new car is $16,000. Assume that an individual makes a down payment of 25% toward the purchase of the car and secures financing for the balance at the rate of 6%/year compounded monthly. (Round your answers to the nearest cent.) What monthly

    asked by Amber
  3. Physics

    a plane travels 5.0x10^2 m while being accelerated uniformly from rest at the rate of 5.0m/s^2. What final velocity does it attain?

    asked by Danielle
  4. trigonometry grade 11

    Brit and Tara are standing 13.5 m apart on a dock when they observe a sailboat moving parallel to the dock. When the boat is equidistant between both girls, the angle of elevation to the top of its 8.0 m mast is for both observers. Describe how you would

    asked by anonymous
  5. Math

    A die is rolled twice. What is the probability that the sum of the rolls is less than 4 given that one of the rolls is a 1? The answer is 3/11. Could someone tell me how to get this. Thanks?

    asked by Ed
  6. finite math

    Kane Manufacturing has a division that produces two models of hibachis, model A and model B. To produce each model-A hibachi requires 3 lb of cast iron and 6 min of labor. To produce each model-B hibachi requires 4 lb of cast iron and 3 min of labor. The

    asked by Amber
  7. UCI Chemistry Webworks

    SPARTAN: Using the bond lengths recorded in Table II determine bond order and the major resonance structures of the following: A. For CVOH, the C-C bonds are longer than the bond lengths found in . (Use i, ii, iv, etc. for your answer) B. For CVOH, the C-N

    asked by Sarah
  8. Chemistry

    Heart pacemakers are often powered by lithium-silver chromate “button” batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s) --------> Li2CrO4(s) + 2Ag(s) Lithium metal is the reactant at one of the electrodes of the battery. Is it the anode or

    asked by Jay
  9. English

    Had to correct sentences so the parallel ideas are expressed 1. Is it true that Superman could leap tall buildings, run faster than a locomotive, and those bullets would bounce off his skin? 2. To celebrate the canned pork product called Spam, we attended

    asked by Amor
  10. math

    Suppose the cost function associated with a product is C(x) = cx + F dollars and the revenue function is R(x) = sx, where c denotes the unit cost of production, s the unit selling price, F the fixed cost incurred by the firm, and x the level of production

    asked by Dee
  11. physics

    Two mirrors are placed at a 90° angle to each other. A light ray strikes one mirror 0.620 m from the intersection of the mirrors with an incident angle of 36.5°. The ray then travels a distance d before reflecting from the second mirror. (a) What is the

    asked by bari
  12. Chemistry

    Calculte the Percent Yield if 104grams of CH3CO2CH2CH3 is produced by reaction of 111grams of CH3CO2H according to : CH3CO2H + CH3CH2OH = CH3CO2CH2CH3 + H20

    asked by Denise
  13. geography

    i need two examples of how geography and climate affect where most people in east asia and southeast asia choose to live.

    asked by Delneisha
  14. health

    Describe the possible barriers to entry and exit for: (a) a physician wanting to establish a solo practice office in internal medicine, (b) a company offering a health club facility in the same building where employees work, and (c) a tertiary hospital

    asked by Karol
  15. physics

    A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. It takes a time of 2.60 for the boat to travel from its highest point to its lowest, a total distance of 0.620 .

    asked by laura
  16. physics

    A shiny metallic Christmas ball ornament 5.10 cm in diameter is used as a mirror. What is the mirror's focal length? please answer in cm. thanks.

    asked by erin
  17. health

    Children's Hospital in Boston, Massachusetts, has long been considered an outstanding medical center specializing in the diagnosis and treatment of pediatric problems. This facility is linked academically to the Harvard University Medical School. Conduct a

    asked by Anonymous
  18. physics

    How high could one horse raise a 100N weight (10kg) in 1 second?

    asked by ganga
  19. statistics

    The weight of a small Starbucks coffee is a random variable with a mean of 360 g and a standard deviation of 9 g. Use Excel to find the weight corresponding to each percentile of weight. a. 10th percentile b. 32nd percentile c. 75th percentile d. 90th

    asked by maribel
  20. Physics

    If 0.045 kg of ice at 0 C is added to 0.390 kg of water at 34 C in a 0.150 kg aluminum calorimeter cup, what is the final temperature of the water? T = degree C

    asked by Anonymous
  21. Finite Math

    A bank deposit paying simple interest at the rate of 8% per year grew to a sum of $1200 in 10 months. Find the principal. (Round your answer to the nearest cent.)

    asked by Dee
  22. Physic

    A 89.0 kg person stands on one leg and 90% of the weight is supported by the upper leg connecting the knee and hip joint-the femur. Assuming the femur is 0.640 m long and has a radius of 1.90 cm, by how much is the bone compressed?

    asked by Bret
  23. health

    Retin-A is a topical ointment originally developed for the treatment of severe cases of acne and related skin disorders. An observed side benefit resulting from use of this product is its beneficial effect on aging skin. If the manufacturer of this product

    asked by Tesa
  24. physics

    Need help on which formulas I use to solve problems? A coil of wire with 200 circular turns of radius 3.00 cm is in a uniform magnetic field along the axis of the coil. The coil has R = 40.0 ohms. At what rate, in teslas per second, must the magnetic field

    asked by physicsclass
  25. physics

    You look into a shaving mirror and the upright image of your face is 40.0 cm away from you. The image has a magnification of 1.50. (a) How far away are you from the mirror? (b) What is the radius of curvature? all answers should be in cm. thanks.

    asked by rene
  26. physics

    A mirror creates an image of magnification −1/3. (a) Is the image upright or inverted? (b) If the object is 7.75 cm tall, what is the height of the image? State your answer with the correct sign. answer to part B should be in cm. thanks.

    asked by jess
  27. finite math

    As online attacks persist, spending on information security software continues to rise. The table gives the forecast for the worldwide sales (in billions of dollars) of information security software through 2007 (t = 0 corresponds to 2002): Year, t 0 1 2 3

    asked by Amber
  28. Physics

    An aluminum spoon at 84 C is placed in a Styrofoam cup containing 0.180 kg of water at 12 C. If the final equilibrium temperature is 21 C and no heat is lost to the cup itself or the environment, what is the mass of the aluminum spoon?

    asked by Amy
  29. Chemistry

    For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq) + 2 Ag(s) Which letter corresponds to the correct cell notation at standard state conditions? A. 2Ag+(aq) Cu2+(aq) 2Ag(s) Cu(s) B. Cu(s) Cu2+(aq) Ag+(aq) Ag(s) C. Ag+(aq) Cu2+(aq) Cu(s)

    asked by Jessie
  30. Physics Question

    Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth : An oak barrel with a lid of area 0.17 m^2 is filled with water. Along, thin tube of cross-sectional area 4.7×10−5 m^2 is inserted into a hole at the

    asked by Catherine
  31. Chemistry

    Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery. What is the standard voltage generated by a cell operating with these half-reactions? 2Li(s) + Ag2CrO4(s)

    asked by Jay
  32. UCI Chemistry Webworks

    For the following balanced equation: 2 Ag+ (aq) + Cu(s) Cu2+ (aq) + 2 Ag(s) Which letter corresponds to the correct cell notation at standard state conditions? A. 2Ag+(aq) | Cu2+(aq) || 2Ag(s) | Cu(s) B. Cu(s)| Cu2+(aq) || Ag+(aq) | Ag(s) C. Ag+(aq) |

    asked by Tom
  33. Physic

    If 0.045 kg of ice at 0 C is added to 0.390 kg of water at 34 C in a 0.150 kg aluminum calorimeter cup, what is the final temperature of the water? If the final equilibrium temperature is 21 C and no heat is lost to the cup itself or the environment, what

    asked by Anonymous
  34. life orientation

    what are the human and social factors that cause ill-health, sickness, truama, accidents, crisis and disasters within the context of contemporary social or environmental issues in south africa

    asked by anonymous
  35. Chem

    For the following electrochemical cell: Fe(s) Fe2+(aq) MnO4–(aq) Mn2+(aq) Pt(s) Which letter corresponds to the correct balanced chemical equation in an acidic solution? A. Fe(s) + 8H+(aq) + MnO4–(aq)Mn2+(aq) + 4H2O(l) + Fe2+(aq) B. 5Fe(s) + 16H+(aq) +

    asked by Anonymous
  36. latin

    how do you say break camp in latin

    asked by Anonymous
  37. Chemistry

    If 135 g of ice at 0.0°C is added to 2.96 L of water at 85°C, what is the final temperature of the mixture?

    asked by teena
  38. finite math

    Carlos invested $6,000 in a money market mutual fund that pays interest on a daily basis. The balance in his account at the end of 8 mo (245 days) was $6,230.23. Find the effective rate at which Carlos's account earned interest over this period (assume a

    asked by Amber
  39. biology

    14 points Save A photosynthesis experiment uses Chlorella to track the route taken by 14C in photosynthesis. The 14C is provided from CO2 and no new sources of CO2 are available. After the experiment the scientist extracts all of the starch produced and

    asked by jack
  40. Physic

    In a dramatic lecture demonstration, a physics professor blows hard across the top of a copper penny that is at rest on a level desk. By doing this at the right speed, he can get the penny to accelerate vertically, into the airstream, and then deflect it

    asked by Chao
  41. Geometry

    How do you find the ratio if the areas of 2 similar triangles in which the ratio of a pair of corresponding sides is 4:1

    asked by Jen
  42. English

    I forgot to add the following sentences. Thank you very much. 1) When we approached his mother, she went away and set on a bench on her own. 2) Her husband suffers from depression (??) and she doesn't want to talk to anyone, not even with her son. 3) Can

    asked by Henry1
  43. health

    A primary care medical group has a list of patients who had once used the group on a regular basis as their primary source of care. However, in scanning their records, these patients had not been in for an appointment in the past 2 years. The senior

    asked by Liberty
  44. Physic

    The simple pendulum in a tall clock is 0.30 m long. What is the period of this pendulum? T = s What is the frequency of this pendulum? f = Hz

    asked by Anonymous
  45. physics

    You and a friend are playing a game of squirt-gun tag in a maze. Suddenly you see your friend's image in a small planar mirror. You take a shot over the barrier in front of you and find that your friend is just at the end of the 7.0 m range of your squirt

    asked by cate
  46. Physical science

    how can i calculate the number of: 1.molecules in 30g water.2.atoms in 50 dm^3 nitrogen gas.3.nucleons in 10 cm^3 flourine gas?

    asked by sandy
  47. Chemistry

    Determine the # of moles of Al2S3 that can be prepared by the reaction of 0.400 moles of Aluminum with 0.700 moles of Sulfur, and Also find the # of moles of reactant in excess

    asked by Denise
  48. Physics

    If it takes a particle in SHM 0.20 s to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?

    asked by Amy
  49. Chemistry

    Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery (Pacemaker). What is the standard voltage generated by a cell operating with these half-reactions? (i got

    asked by Jay
  50. business

    what advantage might a socialist system have in responding o the needs of people struck by emergency situation like the earthquake that occured in haiti in january 2010

    asked by sharron
  51. Chemistry

    Use the Ideal Gas Law to determine the volume of CO2 produced at 25oC 1.5 atm of pressure from the combustion of 35 grams of C6H10.

    asked by Bimpe
  52. math

    In order to determine the amount of liquid a spherical tank will hold, would you need to use volume or surface area?

    asked by Stacey
  53. maths

    a sum of money doubles in 20 years on simple interest. it will triple at the same rate in ?

    asked by arshi
  54. trig

    express the trig. ratios sinA,secA n tanA in terms of cotA.

    asked by Anonymous
  55. Physics

    A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m, and he then measures the time of arrival between the crests to be 1.8 s. What is the approximate speed of the waves?

    asked by Josh
  56. Physic

    The spout heights in the container in the figure are 15 cm, 30 cm, 45 cm, and 60 cm. The water level is maintained at a 68 cm height by an outside supply. What is the speed of the water out of the 15 cm high hole? What is the speed of the water out of the

    asked by Bret
  57. life orientation

    what are the human and social factors that cause ill-health, sickness, truama, accidents, crisis and disasters within the context of contemporary social or environmental issues in south africa

    asked by anonymous
  58. Help in Understanding

    Posted by Anonymous on Friday, May 6, 2011 at 8:45pm. How did the conflict occur? Was it just because of the land? I'm having some trouble understanding. Please explain to me. About the Red River Colony - Ms. Sue, Friday, May 6, 2011 at 9:18pm The conflict

    asked by Emma
  59. trig

    A tree casts a shadow 50 yards long when the angle of the sun (measured from the horizon) is 30 degree. How tall is the tree in feet? (A) 150p3 (B) 50p3 (C) 150 (D) 75p3 (E) None of the above.

    asked by minh
  60. Physics

    Lead pellets of total mass 0.46 kg are heated to 107 C and then placed in a well-insulated aluminum cup of mass 0.15 kg that contains 0.52 kg of water initially at 13.8 C. What is the equilibrium temperature of the mixture?

    asked by Anonymous
  61. chemistry

    If 39.2 of 0.177 is required to neutralize completely 22.0 solution, what is the molarity of the acid?

    asked by Ivy
  62. Math

    If sinx= 5/13, and x is a positive acute angle, find sin (x + 3pi/2)

    asked by Ju
  63. science - biology

    A photosynthesis experiment uses Chlorella to track the route taken by 14C in photosynthesis. The 14C is provided from CO2 and no new sources of CO2 are available. After the experiment the scientist extracts all of the starch produced and analyses the

    asked by jack
  64. Physic

    A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.4 L in the warm store at 74 F. When he takes it outside, where the temperature is 55 F, he finds it has shrunk. By how much has the volume decreased?

    asked by Anonymous
  65. Physic

    A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?

    asked by Catherine
  66. childcare

    The observation that children with down syndrome may alternate between periods of gain and functioning and periods of little or no advance is the? A functioning difference hypothesis. B variance hypothesis C.variance observation d.slowing and stablility

    asked by madeline
  67. Chemistry

    What is the half-cell reactions in a hydrogen fuel cell, and calculate the standard voltage at 25°C H2(g)+ O2(g)------>2H2O(l)

    asked by Jay
  68. trig

    A triangle T has vertices P, Q and R. The length of the edge between P and Q is 10, and the angles at P and Q are 60degree and 45degree respectively. What is the radian measure of the angle at R? (A) 5pi/24 (B) 5/24 (C) 5pi/12 (D) 5/12 (E) None of the

    asked by minh
  69. Math 116

    in 1991 the life expectancy of males in certain county was 68.6 years in 1996 it was 70.9 years let t represent the life expectancy in year t and let t represent the number of years since 1991

    asked by Jessie
  70. math

    A sales tax of 6% of the cost of a car is added to the purchase price of $29,500. What is the total cost of the car, including sales tax

    asked by Tevya
  71. Asande s.s L.o

    discuss the signs and symptoms,describe the consequences,provide realistic and appropriate ways to combat problem,conclusion [an explanation of the importance of marking heathy/decision/ choices to avoid the consequences you have describe above ]

    asked by Siyabonga
  72. Chemistry

    What is the [H+] of a 0.1 M malonic acid with a Ka of 10^-9 solution? I thought it was just (Ka x Ca)^(0.5), but that doesn't get me a pH of 5.

    asked by Ed
  73. english

    I am trying to do a outline but cant find the topic or thesis in (This question expresses a commonly held (by women) negative stereotype about guys of the male gender, which is that they cannot find things around the house, especially things in the

    asked by regina
  74. Chemistry

    Explain with values and reactions from standard reduction potentials tables why neither gold (I) nor gold (III) not to mention the base metal itself, tarnishes (that is can be oxidized by exposure to air)

    asked by Jay
  75. Psychology

    1. You are conducting research on sex differences in e-mails. Your hypothesis is that men use more declarative statements and women use more questions. Answer each of the following questions. • What might be the advantages of using the archival method?

    asked by Shauntae
  76. Physics

    A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this

    asked by Roberto
  77. trig

    Determine the value of cos(theta) given that cos(pi − theta) = .2 (A) p.96 (B) .2 (C) −.2 (D) −p.96 (E) None of the above.

    asked by minh
  78. Physics

    A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this

    asked by Roberto
  79. Principals of Management

    Fernando, a manager in a retail store, is changing the work schedule of his long-term employees for the holiday season. He is using the same basic schedule as he did last year. Fernando should expect that his employees will be: I think the answer is D but

    asked by Melisa
  80. Physic

    A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.4 L in the warm store at 74 F. When he takes it outside, where the temperature is 55 F, he finds it has shrunk. By how much has the volume decreased?

    asked by Anonymous
  81. Algebra

    on three consecutive passes , a football team gains 7 yards,losses 21 yards and gains 12 yard ,what number represents the total net yardage?

    asked by sam
  82. hum/130

    List at least two effects that organized religion has had on society. Give examples from past and/or present world events that illustrate your effects/points.

    asked by karma
  83. Algebra

    the length of a rectangle is fixed at 10 cm. What widths will make the perimeter greater thatn 74 cm?

    asked by sam
  84. Algebra

    In 1993, the life expectancy of males in a certain country was 71.5 years. In 1998, it was 73.6 years. Let E represent the life expectancy in year t and let t represent the number.

    asked by Micheal
  85. math

    :Explain why a prime number must be deficient.

    asked by Stacey
  86. Grammar

    Is the capital word used right in this sentence, if not how can i use it with the same meaning of the sentence His song was SKEPTICAL because it was so good Thank you!

    asked by Hannah
  87. maths

    solve the inequality 2-5x/7

    asked by khadooj
  88. healthcare

    What are the benefits and risks of advertising and marketing health care products and services to potential health care consumers? i need at least 2.

    asked by bobbi
  89. life orientation

    what are the human and social factors that cause ill-health,sickness, truama, accidents and disasters in south africa

    asked by anonymous
  90. Physics

    Lead pellets of total mass 0.46 kg are heated to 107 C and then placed in a well-insulated aluminum cup of mass 0.15 kg that contains 0.52 kg of water initially at 13.8 C. What is the equilibrium temperature of the mixture?

    asked by Ryan
  91. algebra

    Given the function f(x) = −2x + 4, find x if f(x) = 20

    asked by josh
  92. Chem

    For the following electrochemical cell: Fe(s) Fe2+(aq) MnO4–(aq) Mn2+(aq) Pt(s) Which letter corresponds to the correct balanced chemical equation in an acidic solution? A. Fe(s) + 8H+(aq) + MnO4–(aq)Mn2+(aq) + 4H2O(l) + Fe2+(aq) B. 5Fe(s) + 16H+(aq) +

    asked by Anonymous
  93. english

    where is the thesis sentence in This question expresses a commonly held(by women)negative sterotype about guys of the male gender, which is they cannot find things around thehouse, especially things in the kitchen.

    asked by regina
  94. Math

    A coach is collecting a fee from each player on her soccer team. She collects the same amount of money from each player. The amount of money she collected over four days from some of the players is shown in the table below. Soccer Fees Collected Day Number

    asked by Frances
  95. Math

    Day Number of Players Amount Collected Monday: 4 $ 88 Tuesday: 7 $154 Wednesday: 6 $132 Thursday: 3 $ 66 Friday: 2 ???? A.On Friday, the coach will collect fees from 2 more players. What is the total amount of money the coach will collect from the 2

    asked by Frances
  96. english

    (I need to complete an out line with a introduction and a thesis sentence or statement but I can find what I am looking for here is the article) This question expresses a commonly held (by women) negative stereotype about guys of the male gender, which is

    asked by regina
  97. physics project

    how to develop a Rube Goldberg machine that will (1) raising a flag on a pole and (2) squeeze a minimum of a 1 cm length of toothpaste on a toothbrush.

    asked by ganga
  98. Discrete Math

    "The cube of every real number x is greater than or equal to x, and we can see that since 2^3=8>=2." ? Is this a correct argument?

    asked by yengiang
  99. Finite Math

    A {r,u,v,y} B {r,v,w,x} C {r,u,w,z} t and s are on the outsides. find (A intersect B) intersect Cc (A union B union C)c

    asked by Dee
  100. trig

    2. A circle has a radius of 10 centimeters. Find the length, in centimeters, of the arc intercepted by a central angle of 100 degree. (A) 50pi/9 (B) 100pi/9 (C) 500pi/9 (D) 18pi/5 (E) None of the above.

    asked by minh
  101. English

    I need to find a good site containing colloquial expressions used in everyday conversations (example, at the phone, at meals etc). I'd also like you to check these sentences, please. 1) Can you use the word “class party” where(to which?) you invite all

    asked by Henry1
  102. Social Science

    What are the three stages of crisis for stalking victims?

    asked by Lula
  103. trig

    A triangle T has vertices P, Q and R. The length of the edge between P and Q is 10, and the angles at P and Q are 60degree and 45degree respectively. What is the area of T? (A) 50p3/(1 +p3) (B) 10p3/(1 +p3) (C) 50/(3 + 3p3) (D) 10/(3 + 3p3)(E) None of the

    asked by minh
  104. algebra

    what does the formula D=(b-c) represent

    asked by marcus
  105. Algebra

    collect like terms 14a+6b-4a-9b= 10a-3b is this right?

    asked by sam
  106. Medical Billing and Coding

    Can anyone please help me with the research paper in compairing three different electronic medical records. If any one can bref me on this that would be great. I have done all the research my problem is I can't find the things that need to be addressed.

    asked by Shannon
  107. Physic

    A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m, and he then measures the time of arrival between the crests to be 1.8 s. What is the approximate speed of the waves?

    asked by Amy
  108. math

    : Do you feel that mathematicians make to much of the mathematics and nature connection? Why?

    asked by Stacey
  109. Math - doing something wrong somewhere

    Hi, I'm sure I'm doing something wrong here, I'm coming up with an exorbant amount of rainfall for ONE ROOF in a school. Somehow I don't think that in a drought-prone area it is feasable to expect the following to be true. I am unsure where I'm going wrong

    asked by URGENT help plz plz plz plz
  110. math

    how 2 write 7th may 2011 in 5letters without using numberss

    asked by ana
  111. chemistry

    what is the molar mass of a gas if 26.0L of the gas has a mass of 43.6g at 1.10 atm and 10.0 C?

    asked by dee
  112. sociology

    What types of situations or examples that can result in the elimination of functionalist theory when considering the social institution of the family?

    asked by Sharon
  113. Finite Math

    A {r,u,v,y} B {r,v,w,x} C {r,u,w,z} t and s are on the outsides. (a) (A B) Cc (b) (A B C)c

    asked by Dee
  114. computers

    What are the principal tools and technologies for accessing database information to improve business performance and decision making?

    asked by Anonymous
  115. algebra

    1. You are planning to spend no more than $10,000 and no less than $8,000 on your landscaping project. a. Write an inequality that demonstrates how much money you will are willing to spend on the project. b. For the first phase of the project, imagine you

    asked by Girlee
  116. Grammar

    Does this sentence make sense, if not how do you write it correctly Never give up to your dreams? Thank you!

    asked by Hannah
  117. general knowledge

    How do u write 7 th may 2011 in 5 letters without using numbers??

    asked by Anonymous
  118. Psychology

    I watched an episode of NOVA this week called "Secrets of The Wild Child" and I have a question, even though I'm watching the show on YouTube. 1) In what specific ways did Genie's early deprivation effect her development and socialization?

    asked by Alex L.
  119. Psychology

    A child with mental retardation but not autism is more likely to display_______ than a child with autism. A.self injurious behavior b.Smiling and eye contact c.sterotyped motor behaviors d.self-stimulatory behaviors i chose c but could you help or any

    asked by cassidy
  120. To Regina

    Let me know when you have your 7 sentences. (http://www.jiskha.com/display.cgi?id=1304794255#1304794255.1304796072 )

    asked by Writeacher
  121. Trigonometry

    How would you find the both primary solutions to 3cos(2x) = 2.5

    asked by Alex
  122. U.S. History

    What started the first ever American Civil War?

    asked by Kenny
  123. criminal jsutice

    How can not knowing the proper terminology affect you as you conduct criminal justice research?

    asked by patricia nava
  124. trig

    Find the sum of all of the solutions to the equation cos(2x) − sin2(x) − 1 = 0 in theinterval 0 < x < 5 pi. (Use radian measure for x.) (A) 15pi (B) 0 (C) pi (D) 10pi (E) None of the above.

    asked by minh
  125. math

    the average normal temperature in Albany in may is about 59F what is this temperature in Celsius?

    asked by marycela
  126. trig

    The hypotenuse of a right triangle has length 8 and one of the other edges has length 3. What is the sine of the angle opposite the edge of length 3? (A) 3/p55 (B) 3/8 (C)p55/8 (D) 55/64 (E) None of the above.

    asked by minh
  127. calculus

    I have a caternary arch kiln. the inside base, is 4 feet. The apex of the inside parabolic arch is four feet. How many feet is the inside of the kiln?

    asked by Marcus Davis
  128. trig

    Find the numerical value of cos(60degree) + cot(30degree): (A) 1/2 (B) 3p3/2 (C) 12 +p3 (D) 52p3 (E) None of the above.

    asked by minh
  129. Math

    how many 3-digit numbers can be formed using only the digits 1 to 7, if the number 2 must be included? (Repetitions are allowed) The books says 127. Could someone please explain this? Thanks

    asked by Jim
  130. math

    Why is number theory important in mathematics?

    asked by Stacey
  131. Physic

    A certain object with a surface temperature of 150 degree C is radiating heat at a rate of 200 J/s. To triple the object's rate of radiation energy, what should be its surface temperature in Celsius?

    asked by Anonymous
  132. Physics

    You have been sent in a small spacecraft to rendezvous with a space station that is in a low circular Earth orbit, say, with a radius of 6,720 km, approximately that of the orbit of the International Space Station. Due to mishandling of units by a

    asked by Catherine
  133. Physic

    If it takes a particle in SHM 0.20 s to travel from the equilibrium position to the maximum displacement (amplitude), what is the period of oscillation?

    asked by Amy
  134. pre cal

    what is the equation to make a heart out of a cardioid?

    asked by meghan
  135. Government

    which could a special district provide? A. School Administration B. Park Maintenance C. Police Protection D. All of the above

    asked by Alicia
  136. Physics

    The bars representing gravitational potential energy and mechanical energy will increase when you increase the angle. Why?

    asked by Jerry Macfadden
  137. math

    Should number theory be taught to grade school children?

    asked by Stacey
  138. math

    according to what rule are the numbers arrange 8-9-7-10-12-20-28-29?

    asked by john
  139. math

    Do you feel that nature influenced the development of geometry? How?

    asked by Stacey
  140. Algebra

    I am having problems with inequalities. How can I express this problem as one? Derek has $750 at the start of summer and spends $65 a week for expenses. How many weeks can he withdraw expenses and still have $250 at the end of summer.

    asked by Aria
  141. Maths

    Hi, I'm sure I'm doing something wrong here, I'm coming up with an exorbant amount of rainfall for ONE ROOF in a school. Somehow I don't think that in a drought-prone area it is feasable to expect the following to be true. I am unsure where I'm going wrong

    asked by URGENT help plz plz plz plz
  142. Physics

    Solar heating takes advantage of solar collectors such as the type shown in the figure . During daylight hours, the average intensity of solar radiation at the top of the atmosphere is about 1400 W/m^2. About 50% of this radiation reaches the Earth during

    asked by Alice
  143. Math

    what is the unpaid balance at the end of the 10th year on a 30 year loan on 250000 loan

    asked by E
  144. algebra

    b. For the first phase of the project, imagine you want to cover the backyard with decorative rock and plant some trees. You need 30 tons of rock to cover the area. If each ton costs $80 and each tree is $104, what is the maximum number of trees you can

    asked by Laverne
  145. Science

    What does that mean? Explain some ways you can decide if a chemical is an element or a compound. Use examples?

    asked by Tasha