Questions Asked on
November 19, 2011

  1. Physics

    A 821-kg car stopped at an intersection is rear-ended by a 1810-kg truck moving with a speed of 11.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after the

    asked by Daniel
  2. earth

    Six artificial satellites complete one circular orbit around a space station in the same amount of time. Each satellite has mass m and radius of orbit L. The satellites fire rockets that provide the force needed to maintain a circular orbit around the

    asked by mje
  3. Physics

    Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ω0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfaces

    asked by Kayla
  4. statistics

    An accounting firm is planning for the next tax preparation season. From last year's returns, the firm collects a systematic random sample of 100 filings. The 100 filings showed an average preparation time of 90 minutes with a standard deviation of 140

    asked by SHA
  5. Physics

    A young hockey player stands at rest on the ice holding a 1.3-kg helmet. The player tosses the helmet with a speed of 4.6 m/s in a direction 13° above the horizontal, and recoils with a speed of 0.27 m/s. Find the mass of the hockey player.

    asked by Daniel
  6. Chemistry

    Nickel carbonyl has a formula: Ni(CO)4. Nickel carbonyl is produced by the reaction of solid nickel metal with carbon monoxide gas. 1. how do you write a balanced equation for this reaction? 2. How many liters of carbon monoxide gas must be provided to

    asked by Jeff
  7. Calculus

    evaluate the integral of dx/square root of 9-8x-x^2

    asked by Tracy
  8. physics help!

    Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 155 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spring 2.

    asked by meagan
  9. chemistry

    A 10.0 g sample of carbon monoxide, a poisonous gas produced by the incomplete combustion of hyrdocarbons, occupies 15.0 l at a pressure of 200 kpa. the volume occupied by the carbon monoxide when the pressure is increased is 700 pka is a) 1.16 L b)4.05 L

    asked by susan
  10. chemistry

    A 10.0 g sample of carbon monoxide, a poisonous gas produced by the incomplete combustion of hyrdocarbons, occupies 15.0 l at a pressure of 200 kpa. the volume occupied by the carbon monoxide when the pressure is increased is 700 pka is a) 1.16 L b)4.05 L

    asked by susan
  11. Chemistry

    Rank the following 4 compounds in order of lowest to highest freezing point. Enter the formulas in the spaces provided. For example, enter CH4 as CH4. H2O MgO CH4 H2S

    asked by Whats Good
  12. physics emergerncyy!

    A particle of mass m1 = 2.5 kg moving along the x axis collides with a particle of mass m2 = 4.7 kg initially at rest. The incoming particle is deflected in the direction 24 degrees above the x axis, whereas the target particle moves off at 14 m/s at 39

    asked by joe
  13. physics

    A thin uniform rod is rotating at an angular velocity of 7.70 rad/s about an axis that is perpendicular to the rod at its center. As the figure indicates, the rod is hinged at two places, one-quarter of the length from each end. Without the aid of external

    asked by meagan
  14. Statistics

    are the following statements, Ho:=10 and Ha:equal to or less than, a valid pair of null and alternative hypothesis?assume that in a hypothesis test with null hypothesis Ho : u = 12.0 at a = 0.10, that a value of 16.0 for the sample mean results in the null

    asked by Cynthia
  15. Chemistry

    Iron metal is produced from the ore iron(III) oxide by reacting the ore with gaseous carbon monoxide at high tempature to produce liquid iron metal and gaseous carbon dioxide. How do you balanced this equation for this reaction?

    asked by Nathan
  16. math

    Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 100 people. The sample average is 23.8 hours. There is a known population standard deviation of 6.0 hours. The population

    asked by mayra
  17. Statistics

    A researcher is interested in whether students who attend private high schools have higher average SAT scores than students in the general population. A random sample of 90 students at a private high school is tested and has a mean SAT score of 1050. The

    asked by Tony
  18. psych/statistics

    Consider the following: The television network you addressed in Week 4 is asking you to compare the moods of groups that watch different types of shows. You can choose what they mean by moods. You may compare them on general mood, happiness, depression,

    asked by STELLA
  19. Pratical English

    Can someone check over my answers please. 1. Which sentence contains a helping verb? A. A small snake slithered across the yard. B. I walked to the movie theater. C. Sophia will be taking swimming lessons for the first time. D. The group of small children

    asked by Anonymous
  20. science

    Tom the cat is chasing Jerry the mouse across a table surface 2.4 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 2 m/s.What speed will Tom have just before he hits?

    asked by Kethe
  21. pratical english

    The following sentence is in what tense? Laura has given donations to the local food bank. A. Present B. Present perfect C. Past perfect D. Past i think the answer is b is this correct?

    asked by Anonymous
  22. Psychology

    Can someone please tell me whether or not these answers are correct. Thanks! 1. Regarding the memory processes, incoming information is first _______, then stored, and finally the memories must be _______, or taken out of storage to be useful. a.

    asked by Marilyn
  23. physics

    suppose a ball thrown downward with initial velocity 3 m/s instead of being dropped a)what then would be its position after 1s and 2s ? b)what would its speed be after 1 s and 2 s ?

    asked by nour
  24. Calculus

    Suppose you know that f(x) is an odd functon on the domain of all real numbers and that the function is concave up on the intervals 0 < x < 3 and 5 < x and concave down on the interval 3 < x < 5. List ALL intervals on which the functon f(x) is concave up

    asked by Mishaka
  25. science

    A weather balloon carries instruments that measure temperature, pressure, and humidity as it rises through the atmosphere. Suppose such a balloon has a volume of 1.2 m^3 at sea level where the pressure is 1 atm and the temperature is 20°C. When the

    asked by Shirley
  26. physics

    a car accelerates along a straight road from the rest to 90 km/h in 5 s what is the magnitude of its average acceleration

    asked by nour
  27. Physics -- sound

    An organ pipe that is closed at one end has a fundamental frequency of 146 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe has a frequency of 273

    asked by Please Help!!
  28. physics

    Blocks A, B, and C are placed as in the figure and connected by ropes of negligible mass. Both A and B weigh 27.5 each, and the coefficient of kinetic friction between each block and the surface is 0.40. Block C descends with constant velocity. Find the

    asked by Abdulla
  29. Physics

    A 821-kg car stopped at an intersection is rear-ended by a 1810-kg truck moving with a speed of 11.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of both vehicles after the

    asked by Daniel
  30. Economics

    Jim left his previous job as a sales manager and started his own sales consulting business. He previously earned $70,000 per year, but he now pays himself $25,000 per year while he is building the new business. What is the economic cost of the time he

    asked by Ace
  31. Math/probability

    Five different written driving tests are administered by the Motor Vehicle Department. One of these five tests is selected at random for each applicant for a driver's license. A group consisting of two women and three men apply for a license. (a) What is

    asked by Lorena
  32. ci

    A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is

    asked by Tony
  33. physics

    a person throws a ball upward into the air with an initial velocity of 15 m/s calculate a)how high it goes? b)how long the ball is in the air before it comes back ? c)how much time it takes for the ball to reach the maximum height?

    asked by nour
  34. Pratical English

    Which of the following sentences contains an italicized word that's used as a predicate adjective? A. Jerry looks disdainfully at the pile of laundry. B. Jerry looks ill today. C. Jerry looks into the microscope. D. Jerry looks at the map.

    asked by Anonymous
  35. Physics

    Air in a balloon does 25 J of work while absorbing 81 J of heat. What is the change in internal energy?

    asked by D
  36. gravity

    You are an astronaut in the space shuttle pursuing a satellite in need of repair. You are in a circular orbit of the same radius as the satellite (450 km above the Earth), but 24 km behind it. How long will it take to overtake the satellite if you reduce

    asked by mje
  37. My Awards (to share with teachers)

    1st Grade participation in summer reading and math program ------ 3rd Grade 2nd place in primary spelling bee Certificate of Achievement: Math, Music, Good Citizenship, Student of the month - June (4 awards) ---- 4th Grade Parp Ribbin Headliners Science

    asked by Laruen
  38. rotational motion physics

    A 3.7 m diameter merry-go-round is rotating freely with an angular velocity of 0.63 rad/s. Its total moment of inertia is 1600 kg\cdot m^2. Four people standing on the ground, each of mass 70 kg, suddenly step onto the edge of the merry-go-round.

    asked by David colon
  39. pratical enlish

    Which of the following nouns is properly capitalized? A. Telephone B. Frame C. orlando D. Congress i think its d is this correct?

    asked by Anonymous
  40. Stats

    Suppose that a random sample of adults has a mean score of on a standardized personality test, with a standard deviation of . (A higher score indicates a more personable participant.) If we assume that scores on this test are normally distributed, find a

    asked by Anonymous
  41. Math

    Two farmers use combines to harvest corn from their fields. One farmer has 600 acres of corn, and the other has 1000 acres of corn. Each former's combine can harvest 100 acres per day. Write two equations for the number of acres y of corn not harvested

    asked by Jane
  42. Science

    The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA replication D)protein copies can be be made directly from the DNA I'm pretty

    asked by jake
  43. Ninth Grade English

    Romeo and Juliet; Act 1 Scene 5 Chorus Now old desire doth in his death-bed lie, and young affection gapes to be his heir; That fair for which love groan'd for and would die, With tender Juliet match'd is now not fair. Now romeo is belov'd, and loves

    asked by Cathy
  44. english 101 composition

    Identify the sentence that uses punctuation correctly. a) The mysterious stranger walked, down the street, and up the block. b) The mysterious stranger walked down the street, and up the block. c) The mysterious stranger walked down the street and up the

    asked by tammie
  45. physics

    suppose you want to design an air bag system that can protect the driver at a speed of 100 km/h if the car hits a brik wall estimate how fast the air bag must inflate to effectively protect the driver ?

    asked by nour
  46. Pratical English

    1. Which one of the following sentences contains an error in its verb? A. Both Clara and Nathan is planning to attend. B. Neither bananas nor squash was for sale. C. Either footnotes or endnotes are acceptable. D. Not only the players but also coach Jarvis

    asked by Anonymous
  47. Chemistry

    Since ethanol is cheaper than gasoline , today's gasoline's contain varying amonts of ethanol to keep prices lower. given that the enthalpy of combustion of ethanol is -1367 kj/mole and that the aveage energy released by one gram of gasoline is 43 kj: )

    asked by Devin Boutte
  48. Physics

    A 1230 kg car drives along a city street at 31.0 miles per hour, and a baseball has a mass of 0.142 kg. What speed must the baseball have if its momentum is to be equal in magnitude to that of the car? Give your result in miles per hour.

    asked by Daniel
  49. math - please help!!

    A squash match is won when one player wins three games. This situation is often referred to as winning the "best-three-out-of-five" Barbara has a slight edge in winning each game with the odds in favour of 5 to 4 a) what is the probability that maria will

    asked by sally
  50. Pratical English

    Concerning dictionaries and their proper use, which one of the following statements is most accurate? A. A dictionary's word entry offers a fixed, permanent meaning. B. A syllable is a unit of sound. C. Formal usage of a word is considered colloquial. D.

    asked by Anonymous
  51. american history

    Which of the following was the primary cause of the Balkan Wars conducted during the Clinton administration? A. The rise to power of Slobodan Milosevic in Serbia B. The UN peacekeepers' inability to stem ethnic cleansing C. Muslim activism in Bosnia D. The

    asked by Anonymous
  52. fine art

    study the Crack is Wack mural.( u can google it) Then, write a 500-word paper using the following guidelines. In the first part of your paper, use the art history operations to assess Crack is Wack as an artwork. Address the location of the piece (a

    asked by anonymous
  53. Chemistry

    I am stumped on this one...Please help!!! Write a balanced base ionization reaction for methylamine (CH3NH2) in water. Identify all species as acids and bases and identify the conjuate acid-base pairs.

    asked by Nathan
  54. spanish

    What word best fits this sentence? Que necesitas para la clase de ciencias naturales?________ un diccionario! (Necesitamos) (Necesito) (Necesitan) (Necesita)

    asked by Shawn
  55. algebra

    A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results are below. 35 said they drove alone. 38 rode in a carpool. 33 rode public transportation. 5 used both carpools and public transportation. 4 used both a

    asked by matt
  56. math

    If rhys is late for his finite mathematics class, and the probability that he is on time is 3/4. however if he is on time, he is liable to be less concerned about punctuality for the next class and his probability being on time drops to 1/2. rhy is on time

    asked by sally
  57. american history

    Which of the following is true of President G. W. Bush? A. He accepted the United States' role in the International Criminal Court. B. He reluctantly endorsed the Kyoto Protocol. C. He vowed to punish all countries sponsoring terrorism. D. He rejected

    asked by Anonymous
  58. physics

    the centers of two 5000 kg blocks are separated by 1.13 m. What is the gravitational force between the two blocks? What must be the distance between the centers of the blocks if the gravitational force decreases 25 times?

    asked by mack
  59. Chemistry

    Please help me out... The pressure of a container of fluorine gas with a volume of 1.5L is 678mmHg at 55.0*C. a. If the volume of the fluorine gas increases to 5.0L, what would be the pressure of the gas in atm? The amount and tempature of gas are

    asked by Victor
  60. chemistry

    a solution of sulphuric acid is titrated (allquot 20.0ml) with a solution of sodium hydroxide (0.1234M) 26.73ml of the base being required to the end point with phenolphthalein. calculate the molarity of the sulphuric acid solution

    asked by payton
  61. science-important!

    I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA

    asked by jake
  62. physics

    A 20 N cat is sitting on a branch 5 meters high. What is the PEg of the cat? what is the KE of the cat? What is the total energy of the cat?

    asked by Sommer
  63. Biology

    In regard to the kidney, Why is everything dumped into the tubule? Why not dump only wastes and toxins like insects?

    asked by Teddy
  64. Economics

    A firm is currently producing in the elastic portion of its demand curve. What course of action do you recommend for it assuming it wants to raise revenue? Continue producing at the current output level, because it maximizes its total revenue by producing

    asked by Ami
  65. pre-algebra

    Explain the basic method(steps) for graphing a linear equation. Can you give an example of a linear equation and show me how to graph the equation?

    asked by Sherrie
  66. chemistry

    Show me how to calculate the mass of 20.0 moles of He?

    asked by lupita
  67. physics

    What is the gravitational force on a bar that is 3 meters long and has a density of 3x kg/m and lies 3 meters from a 2 kg point mass

    asked by seth
  68. science-important!

    I really need to make sure this is correct for tommorow please help! The significance of specific base pairing in DNA is that A) it stabilizes the sugar molecule B) it provides a method for making exact copies of DNA C) it prevents errors in DNA

    asked by jake
  69. data management

    If rhys is late for his finite mathenetucs class, ad the probability that he is on time is 3/4. however if he is on time, he is liale to be less concerned about punctuality for the next class and his probability being on time drops to 1/2. rhy is on time

    asked by sally
  70. history

    Much of the direct written evidence for the early period of the Zhou dynasty comes from inscriptions on A. bamboo strips. B. cups. C. oracle bones. D. the walls of the kings' palaces. i chose C WHAT YOU THINK

    asked by firedup
  71. Math

    A student is taking a multiple choice exam. There are five possible answers for each question. What is the probability the student will answer the first question correctly? What is the probability that the student will answer the first question

    asked by Tanya
  72. american history

    During World War II, the tide turned in favor of the United States at the Battle of A. Midway. B. the Coral Sea. C. Leyte Gulf. D. Okinawa. I think its a !

    asked by Anonymous
  73. math

    make a tally chart for the number of students in the third,fourth,and fifth grade classes:26,25,27,27,26,28,27

    asked by jon
  74. american history

    After Hitler came to power in 1933, he blamed Germany's defeat in World War I on A. Communists and Socialists. B. Jews and Communists. C. Jews and Gypsies. D. Communists and American imperialists. i think its b or c.

    asked by Anonymous
  75. Math

    please help me to solve this problem -2 x(-7)x (-9)

    asked by Johnson
  76. math

    Make a table to answer Problems 27–28. (3-5) Two shipping companies charge different amounts to mail packages. Company A charges an initial $5 fee, and each pound shipped is an additional $1. Company B charges an initial $3 fee, and $1.50 for each pound

    asked by ducky
  77. Physics

    A 160g stone, tied to a thread, swings in a horizontal circle with a 100 cm diameter. if the maximum tension the thread can withstand before snapping is 28 N, find the A) Maximum speed of the stone B) Acceleration of the stone at this speed. I solved A

    asked by mack
  78. Calculus

    Evaluate the integral sin4x cos^2 4x dx A. cos^3 4x/3 +C B. - cos^3 4x/3 +C C. cos^3 4x/12 +C D. -cos^3 4x/12 +C

    asked by Tracy
  79. Linear Algebra

    Let W be the set of all polynomials p(t) in P3 such that p(0)=0. Show that W is a subsapce of P3 and find a basis.

    asked by Jaime
  80. Pre-Calculus

    This is application question. Bacterial Control. If t days after treatment the bacteria count per cubic centimeter in a body of water is given by C(t) = 10t^2 - 120x + 800 0

    asked by Stacy
  81. Math

    Which probability interpretation is most reasonable to use: relative frequency, subjective, or classical? The probability your company's sales will exceed seven million dollars this year. Is this relative frequency? The probability that the S&P will

    asked by Morris
  82. physic

    4. The physics class is having a tug of war – the men against the women. For a long time the two teams are pulling with equal force and the knot in the centre of the rope isn’t going anywhere. But then one boy sneezes and stops pulling as hard for just

    asked by aishah
  83. american history

    10.)Among the legislative acts passed during Franklin Roosevelt's first 100 days, which one gave relief to artists, actors, and writers? A. Works Progress Administration B. National Recovery Administration C. Tennessee Valley Authority D. Civilian

    asked by Anonymous
  84. biostatistics

    Suppose we want to design a new placebo-controlled trial to evaluate an experimental medication to increase lung capacity. The primary outcome is peak expiratory flow rate, a continuous variable measured in liters per minute. the primary outcome will be

    asked by Natasha
  85. Economis

    I have got an economics questions, and i did my personal revision by tying to work the question. here is the question: using demand and supply analysis, explain the influence of the imposition of a maximum price and a minimum price on a product on price

    asked by Pallavi
  86. physics

    You are standing on a merry-go-round of mass 500 kg and radius 2 m. Initially you are at 1.2 m from the center and you are rotating with an angular speed of 45 rad/s. (a) If you move in to a point 0.2 m from the center, what speed will you be rotating at?

    asked by anonymous
  87. geometry

    what is the orthocenter of triangle with the vertices of X(-11,0), Y(-11,-8), Z(-1,-4)?

    asked by Melanie
  88. science

    Compare the likelihood that an astronaut on Mars will be struck by meteoroid with its likelihood on earth.

    asked by Shirley
  89. Algebra

    A store mixes kentucky bluegrass wothe $12 per pound and chewing fescue for $12 per pound. Howe many of each should be used to make 456 pounds of mixture?

    asked by Mary
  90. English (MLA)

    Lets say you need to put a quote with several sentences into an essay, how (in format) you would you quote this?

    asked by Andy
  91. Chemistry

    Reversible equilibrium: what would the effect be by adding hydrogen gas to: 3Fe(s)+4H20(i)Fe3O4(s)+4H2(g) and... effect of adding chlorine gas to: P4(s)+6Cl2(g)4PCl3(i)

    asked by Nathan
  92. calculus

    Evaluate the integral of (x)cos(3x)dx A. (1/6)(x^2)(sin)(3x)+C B. (1/3)(x)(sin)(3x)-(1/3)(sin)(3x)+C C. (1/3)(x)(sin)(3x)+(1/9)(cos)(3x)+C D. (1/2)(x^2)+(1/18)(sin)^2(3x)+C

    asked by Tracy
  93. Pratical English

    Which of the following words can be used as a noun? A. Happily B. If C. Younger D. Love i think its d is this correct?

    asked by Anonymous
  94. Jiskha rules

    i was searching around and cannot find the rules for the forum. where is the page containing said rules?

    asked by Cody
  95. Pre-Calculus

    I'm having problems solving this and showing the steps: Find the absolute maximum and absolute minimum, if either exists, for y = f(x)= x^3 - 12x + 12 -3 less equal to x greater than equal to 5

    asked by Stacy
  96. math

    Please show me how to work this problem: Fran makes a rectangular tablecloth that has an area of 5 ft squared. Her mother makes a tablecloth that is three times the length and three times the width of Fran's. What is the area, in square feet, of her

    asked by Jane
  97. Physics

    A honeybee with a mass of 0.175 g lands on one end of a popsicle stick. After sitting at rest for a moment, the bee runs toward the other end with a velocity 1.41 cm/s relative to the still water. What is the speed of the 5.20-g stick relative to the

    asked by Daniel
  98. math

    Please show me how to solve: Hannah took a survey of 500 students at her school to find out whether they liked baseball or football. The results are shown in the Venn diagram. How many of the students surveyed like football? 28% liked baseball, 32% liked

    asked by Jane
  99. My Grades (this is different)

    What is my grades for the first quarter? I didn't get my report card because my parents didn't go to the parents teacher conference so yeah but today my guides counselor show it to me (my grades for the first quarter) they didn't calculated my average.

    asked by Laruen
  100. French11

    can someone please explain to me in english how to form the passe simple, conditionnel anterieur and the futur anterieur?

    asked by Rebecca
  101. statistics

    the company is concerned that a simple random sample of 2000 owners would include fewer than 12 owners of model d or fewer than 12 owners of model e. briefly describe a sampling method for randomly selecting 2000 owners that will ensure at least 12 owners

    asked by Anonymous
  102. 123

    A sample of size 50 has mean 20 and deviation 5. The value at highest concentration point is 16. It was later discovered that an item 12 was misread 30, find the value of coefficient of skewness

    asked by Anonymous
  103. physics

    A ball weighing 1.78 N is shot through a launcher, achieving a speed ( from rest) of 41 m/s in 0.28 s. A) What is the mass of the ball? B) What is the acceleration of the ball as it moves through the launcher? C) What average force acted on the ball to

    asked by mack
  104. chemistry

    Calculate the pH of an aqueous solution containing 1.6 x 10-2 M HCl, 2.0 x 10-2 M H2SO4, and 1.8 x 10-2 M HCN.

    asked by alyssa
  105. similtaneous equation

    x+3y=6 2x-9y=7 can you please help me im getting the wrong answers. thank you

    asked by Anonymous
  106. Chemistry

    Write the correct electronic configuration of Pd,Ag,Pt&Au. I think for (Pd)=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^0 4d^10 (Ag)=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^1 4d^10 (Pt)=1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^1 5d^9

    asked by Meron
  107. Physics

    #4. Rain is falling at a velocity of 10,0 m/s at an angle of 30* towards the west. At what velocity and direction does a marathon runner have to go in order for him to get rain on his head?

    asked by Jim
  108. spanish

    so are you coming to my house tomorrow? Translate into spanish plzzz

    asked by fred
  109. math

    please solve using the multplication principle -x/9=1/6

    asked by Johnson
  110. math

    is there any [legal, of course] calculator software? i wish to have the software on my computer so i have a version of the TI 89 available even if i forget my calculator.

    asked by Cody
  111. BAA

    Do I have to get straight A's to get a black advevement award?

    asked by Laruen
  112. math

    please help me solve and explain the answer 96+(-100)+773+(-297)+10+(-251)

    asked by Johnson
  113. 8th Grade

    Whta is a verctorican (srry i can't spell that) award when the 8th graders get one?????

    asked by Laruen
  114. Pratical English

    In the following sentence, what is the subject complement? My neighbor is a newspaper reporter. A. Neighbor B. Reporter C. My D. Newspaper I think it is b. Reporter or maybe d. im not for sure.

    asked by Anonymous
  115. Valedictorian/Salutatorians ????

    What is Valedictorian/Salutatorians award? Do 8th graders get one???? How do you get Valedictorian/Salutatorians award???

    asked by Laruen
  116. math

    translate the phase to an alegebraic expression; John has $30.00 before spending N dollars on food how much money remains?

    asked by Johnson
  117. psych

    Give some background information on your hypothetical observational study - describe the setting that you would use for your observational study, why you are interested in this study and what you hope to learn. (2) Explain whether you would be an

    asked by STELLA
  118. math

    when solving using multiplication principle -13x=273 how do i solve plus perform check

    asked by Johnson
  119. math

    please simplify [5-5(2-4)]

    asked by Johnson
  120. chem 1010

    Thank you for your help Dr.Bob

    asked by maryclare
  121. math

    please help me solve by multiplication principle; -x/9=1/16

    asked by Johnson
  122. Mediation

    What requirement does the Texas Alternative Dispute Resolution (ADR) statue create for mediators before they can mediate a case?

    asked by R.T.
  123. Math

    I need help with the second question: A student is taking a multiple choice exam. There are five possible answers for each question. What is the probability the student will answer the first question correctly? Answer is 1/5 What is the probability that

    asked by Tanya
  124. law

    What requirement does the Texas Alternative Dispute Resolution (ADR) statue create for mediators before they can mediate a case?

    asked by R.T.
  125. law

    In mediation What is a conflict of interest generally under the Texas ADR statute and/or the Ethical guidelines?

    asked by R.T.
  126. statistics

    A student is taking a multiple choice exam. There are five possible answers for each question. What is the probability the student will answer the first question correctly? What is the probability that the student will answer the first question

    asked by Tanya
  127. Chemistry

    Taking into account the "Second Law of thermodynaics", what is the maximum percentage of heat at 700 C that can be converted into electricity if the waste heat was produced as steam at 100 C? Please Give as much detail as possible instructor will not help

    asked by Devin Boutte
  128. business Math

    what is the amortization formula?

    asked by Anonymous
  129. math

    Please explain this exercise and give answer y = 13+x, for x

    asked by Johnson
  130. Math

    I do not understand please explain for me solve for the indicate letter x=13+x, for x the solution is x =

    asked by Johnson
  131. Pre-Calculus

    Need help with the following along with all steps. Find y" for y = 3x + 4/x

    asked by Stacy
  132. algebra

    Find the angles between the following pairs of vectors (1)3i+2j-6k,4i-3j+k (2)2i-3j+k,3i-j-2k

    asked by Aman
  133. Math

    What is the probability of rolling a two and a five in a single toss of a die?

    asked by Stacy
  134. Physics

    A guy playing basket-ball needs to make the penalty shot for his team to win. Given that the ball is thrown from a height of 2 meters at an angle of 60 degrees, that the post is situated at a distance of 7 m and standing at 3.5 m: a) What does the initial

    asked by Brian
  135. Math

    how do I find a equivalant expression without parentheses -y(y-25)=

    asked by Johnson
  136. Another Question

    Is 8th grade is hard?

    asked by Laruen
  137. Another Question

    What day is Black Friday?

    asked by Laruen
  138. speech

    I am doing a persuasive speech on why you should foster a dog or cat. but I am not sure what my three main points should be. do you guys have any idea?

    asked by Hannah
  139. film

    whats the one thing all the characters want in devil in a blue dress?

    asked by rainy
  140. Economics-Ms.Sue

    Why doesn't the United States have a normal economy?

    asked by Samantha
  141. math

    So is -(y-25) is an equivalant expression without parentheses =25y

    asked by Johnson
  142. Math

    Which probability interpretation is most reasonable to use: relative frequency, subjective, or classical? The probability your company's sales will exceed seven million dollars this year. Is this relative frequency? The probability that the S&P will

    asked by Stacy
  143. math

    can you help me to find an equivalant expression without parentheses -(y-25)

    asked by Johnson
  144. calculus

    Given f''(x)=5x−6 and f'(−3)=−6 and f(−3)=2. find f'(x) and f(1)

    asked by Drew
  145. (English) War of the Worlds Book Question

    Martian cylinder and the Martian tripod are initially referred to by the narrator as a "Thing." Why do you think that the word "Thing" is capitalized in these references?

    asked by Sam
  146. chemistry_toughhhh

    Initial rate of rxn of H2O2(aq)->H2O+ 1/2 O2(g) is found at 1.7x10(-3)M/s and is constant for 2min. You start with 160ml of 16M H2O2. How many mL of O2 in one minute? (Measured at 273K and 760mmHg). I tried to find the new conc of H2O2 via NewConc= Old

    asked by Matt
  147. physics

    A completely submerged chunk of metal sinks in water with an acceleration equal to one-fifth of g (where g = 9.8 m/s\ Find the specific gravity (defined above) of this metal. Note, ignore all drag effects in the fluid.

    asked by barboat
  148. Mnagemeny

    I need assistance with a problem. can anyone help?

    asked by Sammy
  149. Math

    How much do I have to save monthly at a 3.5% interest compounded quarterly to get a final amount of $4000?

    asked by Wanda
  150. chem1010

    Hello,my sample is 4.80grams of O2 with V of 15.0L. for the life of me (and going on two hours of trying...)what is the new V if 0.500 moles of O2 is added? Please don,t give the answer-comfort me only with your steps for solving. thank you, much amore'!

    asked by maryclare
  151. american history

    The majority of states that did not ratify the Equal Rights Amendment were located in the A. Midwest. B. Southeast. C. Northeast. D. West.

    asked by Anonymous
  152. Sociology

    State four functions of the philosophy

    asked by Philosophy
  153. chemistry

    how do u find percent abundance?

    asked by steph
  154. Student of Month

    When students are pick tp be the student of the month is it because they work hard, get good grades, and hehaver?

    asked by Laruen
  155. Lone Star

    8.16 x 1024 atoms of neon gas = how much in volume liters

    asked by Kent
  156. Science

    Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

    asked by tasha
  157. Pre- Algebra

    Can you graph these equations for me so that I can figure out how to do them? 1). Y=4x-3 2). 4x-5=2x-y 3). Y=1x1+4 4). X+5=2x-7 Can you explain your work?

    asked by Sherrie
  158. School Supplies

    IS there any stores that shows 1 inch binder that have colorful designs. I look at the website of this store office depot i didn't see it.

    asked by Laruen
  159. physics

    a 250 pund man slams his face into a wall at 8mph how many punds of force does he hit his face with

    asked by Anonymous
  160. socialstudies

    can you please tell me the busiest airport in the USA

    asked by R S Telagathoty
  161. My Award Binder

    I have a award binder to keep all of my award from 1st grade to now and I need ideas to organize it and make it pretty. I don't have any award from 7th grade but my pricipal said that I will have a lot of awards (as I was walking to go to the library

    asked by Laruen
  162. math

    a thesis sentence for the value of math

    asked by givana hamilton
  163. algebra

    Find the angles between the following pairs of vectors (1)3i+2j-6k,4i-3j+k (2)2i-3j+k,3i-j-2k

    asked by Aman
  164. bio

    Homozygous dominant for BRCA1-what is the genotype? (using the letter b)

    asked by Nicole
  165. business communication

    . Which of the following best describes these sentences from a welcome message? Our company is pleased to welcome you as one of our valued customers. We are looking forward to receiving many more fine orders from you in the near future. We especially

    asked by Anonymous
  166. social studies

    how old is mickey this year

    asked by Jennifer White
  167. statistics

    cost of producing is 50 cents each and they sell for 1.25 each. demand for programs at each game is normally distributed with a mean of 2500 and standard deviation if 200. how many shouild be prodcued

    asked by Anonymous
  168. Question

    Is there any website that is for free and not making a account something like Jiskha to ask questions besides homework.

    asked by Laruen
  169. Contests

    Is there any contest that is happening in Rockland County?

    asked by Laruen
  170. Chemistry

    Need a lot of help! Specific gravity of a drug is 0.9815. How many cc of this drug should be administered for a dose of 215mg?

    asked by Ethan
  171. physics

    how does a dessert fox's large ears help it keep cool?

    asked by lissa