Popular questions and responses by tommy
  1. math

    you need 1 1/4 cups of sugar to make 20 cookies. to make 6 cookies, you need___ cups of sugar?

    asked on April 27, 2016
  2. algebra1

    Help me please!!!! Solve. (–18x3 + 17x + 6) ÷ (3x + 2) (1point) –6x^2 + 4x + 3 6x^2 + 4x – 3 –6x^2 + 4x – 3 6x^2 – 4x + 3 The width, w, of a rectangular garden is x – 2. The area of the garden is x^3 — 2x – 4. What is an expression for

    asked on May 19, 2014
  3. English

    Combined the sentences by changing the italicized word group to an infinitvie or infinitive phrase (italicized word group) 1. The journalist took a job in the hotel. (This way he would get facts for an article. ) 2. Bob used raspberry flavor in the cod

    asked on April 8, 2011
  4. Chemistry

    What reactions occur in the sun? Select all that apply. A: Fusion Occurs B: Helium is Consumed C: Hydrogen is Consumed D: Fission Occurs

    asked on September 6, 2019
  5. Chemistry

    The temperature of a 12.58g sample of calcium carbonate increases from 23.6degrees celcius to 38.2 degrees celcius. If the heat capacity is 0.82J/g-K, how many Joules of heat are absorbed

    asked on June 18, 2013
  6. Biology

    Which of the following is not a terminal electron acceptor in anaerobic respirations? a)nitrite b)carbon dioxide c)hydrogen sulfide d)sulfate e)nitrate Question 2 Which of the following is not an end product of fermentation? a)pyruvate b)none of the

    asked on September 10, 2010
  7. Physics

    In a 5.00km race, one runner runs at a steady 11.6km/h and another runs at 15.0km/h. How long does the faster runner have to wait at the finish line to see the slower runner cross?

    asked on June 12, 2015
  8. Physics

    Hi, can anybody provide some hints in how to approach these questions? I've been stuck on it for days!!! Thank you in advance!! Nodes of a Standing Wave: Consider a standing wave, where y represents the transverse displacement of a string that extends

    asked on March 14, 2015
  9. Physics

    What is the tension in the string in (Figure 1) ? The volume of plastic ball is 95 cm3 and the density is 840 kg/m3.

    asked on July 26, 2015
  10. Physics

    Hi, I've been stuck on this for days! I'd love if I can get some help. Two unfortunate climbers, roped together, are sliding freely down an icy mountainside. The upper climber (mass 80kg ) is on a slope at 16∘ to the horizontal, but the lower climber

    asked on April 3, 2015
  11. statistics

    The distribution of scores on the SAT is approx. normal with mu= 500 and std dev=100. a)what proportion of the population have SAT scores above 650? b)what proportion of of the population have SAT scores below 540? c)what is the minimum SAT score needed to

    asked on February 7, 2008
  12. math

    1. In the middle of the page, draw two vertical lines an inch long, an inch apart, and that are parallel to each other. 2. About a half inch below the lines,draw a half inch horizontal line that is centered between the lines 3. Draw a line from the bottom

    asked on July 30, 2019
  13. Physics

    The two ropes shown in the bird's-eye view of (Figure 1) are used to drag a crate 3.7 m across the floor. How much work is done by the force fk→? How much work is done by the force T1→? How much work is done by the force T2→?

    asked on July 22, 2015
  14. Math

    An art class is planning to paint a rectangular mural with an area of 60 square feet. It has to be at least 4 feet high but no more than 6 feet high. The length and width have to be whole numbers. List all possible lengths for the mural.

    asked on March 16, 2015
  15. English

    People who attract a lot of friends are neither negative nor needy. Do I need to change this sentenance so that both parts are parallel?

    asked on August 24, 2011
  16. math

    There are 24 students in a class. If 1/4 students wear glasses. How many students do not wear glasses? I multiply 24(1/4)=6 so 24-6=18 so is 18 students correct?

    asked on October 26, 2016
  17. Accounting-business

    Lear, Inc. has $800,000 in current assets, $350,000 of which are considered permanent current assets. In addition, the firm has $600,000 invested in fixed assets. a. Lear wishes to finance all fixed assets and half of its permanent current assets with

    asked on June 16, 2009
  18. Statistics

    A survey among freshman at a certain university revealed that the number of hours spent studying the week before final exams was normally distributed with mean 25 and standard deviation 15. A sample of 36 students was selected. What is the probability that

    asked on October 6, 2015
  19. Math

    Rewrite the given equation using the substitutions x=rcos(theta) and y=rsin(theta). Simplify your answer.

    asked on May 9, 2011
  20. Geometry

    The wheel of an adult's bicycle has diameter 26 in. The wheel of a child's bicycle has diameter 18 in. To the nearest inch, how much farther does the larger bicycle wheel travel in one revolution than the smaller bicycle wheel?

    asked on April 4, 2011
  21. physics

    a rock is thrown horizontally with a speed of 17 m/s from a vertical cliff of height 34 m. A- I solved for t=2.63 B-How far will it land from the base of the cliff? im using x=xo+vox*t i get -6.46 and it is wrong. What am I doing wrong? C-What is the

    asked on September 6, 2010
  22. MATH

    The LRT trolley system 10 miles long is fed by two substations that generate 600 volts and 560 volts, respectively. the resistance of the trolley wire and rail return is 0.3 ohm per mile. if the car located 4 miles from the 600-volt station draws 200A from

    asked on March 10, 2016
  23. Statistics

    According to one survey, the mean serum cholesterol level for U.S. adults was 195.1, with a standard deviation of 41.5. A simple random sample of 95 adults is chosen. Find the 46 percentile for the sample mean. Write only a number as your answer. Round to

    asked on October 6, 2015
  24. english

    what sound devices does Dickinson employ in the phrase, "too cool for Corn", "But when a Boy, and Barefoot"? alliteration, slant rhyme

    asked on December 26, 2013
  25. History

    8. What happened to Japanese Americans during World War II? A.) They were forced to leave the country. B.)They stayed in their homes. C.) They all joined the Japanese army. D.) They were sent to internment camps. I think it is C. Thank You.

    asked on January 24, 2013
  26. physics

    A 200.0 N force moves a 120.0 kg crate on a friction less surface from rest to final speed of 9.6 m/s. what is the displacement of the crate at the time it reaches this speed ?

    asked on January 12, 2013
  27. Calculus 1

    Evaluate the following limits after identifying the indeterminate form. Use Hospital's rule. d) lim x_0+ (xe^(2x) + 1)^(5/x) e) lim x_(Pi/2)+ (1 + sec3x)^(cot3x) Thank you!

    asked on April 26, 2012
  28. Word problems

    Jenny can shovel snow from her driveway in 60 minutes. Tom can do the same job in 55 minutes. How long would it take both of them together to shovel the drivway if they worked together. I am coming up with 28 minutes.. is this correct or is it in fraction

    asked on August 8, 2010
  29. physics

    If you drop a stone into a well that is d = 128.0 m deep, how soon after you drop the stone will you hear it hit the bottom of the well?

    asked on May 4, 2008
  30. Trigonometry

    in triangle abc, if sin c= (sin a + sin b )/ ( cos a + cos b ) prove that triangle abc is a right-angle triangle.

    asked on July 13, 2008


    asked on September 24, 2007
  32. math

    what is one-tenth of 19,240

    asked on April 24, 2020
  33. math

    A particular style of shoes costs the retailer $80 per pair. At what price should the retailer mark them so he can sell them at a 20% discount off the original price and still make 35% profit on his cost?

    asked on October 25, 2018
  34. mechanical

    A cylindrical tank with flat endplates is constructed from two sections that are welded together circumferentially.The outer diameter of the tank is 1.20, and the wall of the tank is 20.0 mm thick and the mamimum internal pressure is 2.00 MPa. (a)

    asked on November 16, 2016
  35. Math

    How do i explain what 40 hundred thousands is?

    asked on October 11, 2016
  36. Social studies

    How did George Washington create and shape our community? would these be a few ways he created a cabinet system he created the first bank he set the term limit of the president

    asked on October 4, 2016
  37. Writing

    Please check this Apostrophe: 1) Kates' sister 2) the giraffe's neck 3) the parent's anniversary 4)the senator's cars 5) Toms' folder 6) the deer's habitat

    asked on October 3, 2016
  38. Math

    Jade ran 6 times around her neighborhood to complete a total of 1 mile. How many times will she need to run to complete 5/6 of a mile?

    asked on September 15, 2016
  39. wuzzles

    eye fit fit fit fit can someone please help me solve this

    asked on February 9, 2016
  40. wuzzles

    p o u r can someone help me solve this wuzzle

    asked on February 9, 2016
  41. physics

    Falls resulting in hip fractures (or head injuries) are a major cause of injury and even death to the elderly. Typically, the hip’s speed at impact is about 2.0 meters per second. If this can be reduced to 1.3 meters per second or less, the hip will

    asked on February 1, 2016
  42. Math

    Which word best completes this statement? Adjacent angles are_______ congruent. A. Always B. Sometimes •• C. Never D. None of these Correct me

    asked on January 27, 2016
  43. finite mathematics

    A financier plans to invest up to $2 million in three projects. She estimates that Project A will yield a return of 10% on her investment, Project B will yield a return of 15% on her investment, and Project C will yield a 20% return on her investment.

    asked on October 23, 2015
  44. Physics

    A sprinkler mounted on the ground sends out a jet of water at a 35∘ angle to the horizontal. The water leaves the nozzle at a speed of 15m/s . How far does the water travel before it hits the ground?

    asked on June 17, 2015
  45. physics

    A car moves with constant velocity along a straight road. Its position is x1 = 0 m at t1 = 0 s and is x2 = 48m at t2 = 5.0s . Answer the following by considering ratios, without computing the car's velocity. What is the car's position at t = 2.5s ? What

    asked on June 12, 2015
  46. Drama

    About the movie" Hotel Rwanda¡±£º 1. 1. What moment did Paul's life change? 2. Could Paul have changed his mind? 3. At what moment was Paul past the point of no return? 4. What are the positive and negative sides of attempting to recreate actual events

    asked on January 15, 2014
  47. Chemistry

    cr(s)--->Cr^3(aq)+3e- and Pb2+(aq)+2e---->Pb(s) write a balanced equation Please help thanks

    asked on May 5, 2013
  48. Help math

    $4000 invested at an APR of 9% for 10 years What is the amount of money after 10 years

    asked on January 27, 2013
  49. physics

    A sports car has a weight of 9,300 N and can accelerate from rest to a velocity of 30.0 m/s in a measured time of 11s.1)what is the mass of the car? 2) what is the kinetic energy of the car at the end of this acceleration?

    asked on November 8, 2012
  50. Economics

    The service of mechanic in fixing the radiator of his excluded or included gross domestic product and how?

    asked on February 11, 2012
  51. algebra

    the dart from a high-powered dart gun follows a path given by h(t)=-4t^2+62t+10 where h is the height in inches t seconds after it is fired. What is the maximum height reached? how many seconds did it take to reach this height?

    asked on November 2, 2011
  52. Optimization (Math)

    The mayor of a village wants to build a library of which the windows have a shape of a rectangle on top of a square. The total perimeter of each window is of P meters and varies depending on each windows size. Find the dimensions of the windows in terms of

    asked on November 1, 2011
  53. Biochemistry

    What type of interaction would most likely form in a tertiary structure of a protein? Lysine Tyrosine Asparagine Leucine Glutamic Acid Threonine Isoleucine Methionine I don't understand this at all. Much help is greatly appreciated.

    asked on September 14, 2011
  54. Genetica

    Say a normal woman, whose father had hemophilia, marries a normal man. Do you know what would be the probability that their first child will have hemophilia and could you explain it to me? I'm clueless

    asked on September 9, 2011
  55. solid mensuration

    A parabolic trough is 3 meters long, one foot across the top and one foot deep. Find the volume of water in the trough in liters if it is filled to a depth of 6inches.

    asked on May 12, 2011
  56. Physics

    A 56 cm diameter wheel accelerates uniformly about its center from 130 rpm to 400 rpm in 3.2 s. (a) Determine its angular acceleration. Express your answer using two significant figures. (b) Determine the radial component of the linear acceleration of a

    asked on October 19, 2010
  57. physics

    REPOST PLEASE HELP a rock is thrown horizontally with a speed of 17 m/s from a vertical cliff of height 34 m. A- I solved for t=2.63 B-How far will it land from the base of the cliff? im using x=xo+vox*t i get -6.46 and it is wrong. What am I doing wrong?

    asked on September 7, 2010
  58. Physics

    Question about doppler effect: How do you solve when it gives you percentage value? (Q 1) How do you calculate for doppler effect when the listener is moving instead of the source of sound? (Q 2) Questions 1. As a racing car zooms by you, its pitch

    asked on November 25, 2009
  59. Physics

    Hi guys hope someone here can maybe help me out. Two loudspeakers are placed at either end of a gymnasium, both pointing toward the center of the gym and equidistant from it. The speakers emit 286 Hz sound that is in phase. An observer at the center of the

    asked on November 19, 2009
  60. Physics

    Sorry new here trying to figure out angular problem with a disc, only have 2 attempts remaining please help me out :D. When the play button is pressed, a CD accelerates uniformly from rest to 470rev/min in 3.0 revolutions. If the CD has a radius of 6.0 cm

    asked on November 5, 2009
  61. Physics

    If a discus thrower rotates through the last 45 degrees of a turn in .11 seconds and the distance from the axis of the rotation to the center of the discus is 1.22 m, what is the average linear velocity of the discus?

    asked on November 4, 2009
  62. calculus

    write the expression in the form bi, where b is the real number squareroot-16 squareroot-25 squareroot-3 squareroot-5

    asked on October 29, 2009
  63. spanish II

    Write the correct form of "tener." 13. (yo) ____ dos casas. 14. (él) ______mucho dinero. 15. (ella)_____ poco dinero. 16. (Uds.) ______ mis zapatos.

    asked on October 28, 2009
  64. Trigonometry

    How to memorize the sum-to-product and product-to-sum formulae more easily ?? I know how to deduce the formula but when i try to memorize it, its so hard. Always sin, cos, a+b, a-b, i always get confused. Is there any way to memorize more efficiently??

    asked on July 21, 2008
  65. history

    Who did the american cowboys learn their skills from during th late 19th century???

    asked on February 21, 2008
  66. Chemistry

    The multiple Choice Question: Determine delta G (free energy at standard condition s) for the reaction below, considering Kp = 8 at 25 degrees celcius. 2Ag -> B The answer Choices: A.-2.303 x (0.287) x (25) x log 8 [J] B.-2.303 x (8.314) x (25) x log 8 [J]

    asked on April 22, 2007

    A triangle has sides 3x +7, 4x - 9, and 5x + 6. Find the polynomial that represents its perimeter. Am I suppose to just add these together to get the perimeter 3x+7 4x-9 5x+6 12x+4 that's how easy it is.

    asked on April 21, 2007
  68. chemistry

    True or False: 1. A rate law can be written from the molecularity of the slowest elementary step. 2.The final rate law can include intermediates. 3.The rate of a reaction is dependent of the fastest step in the mechanism. 4.A mechanism can never be proven

    asked on February 11, 2007
  69. Programming: LUA

    I am trying to figure out how to loop a group of lines. Help?

    asked on March 20, 2020
  70. Math

    jim wants to put a wallpaper border around a rectangular room. The room measures 14 feet by 10 feet. If the wallpaper border comes in strips that are 20 feet long how many strips will jim need?

    asked on December 10, 2018
  71. Science

    How does visible light be made to give off spectral lines?

    asked on February 20, 2018
  72. science

    Any place inside a hachure line is a _____ elevation than the hachure line.

    asked on June 13, 2017
  73. Statistics

    If the slope of the regression line is negative and the correlation coefficient is -0.5, coefficient of determination is: r = -0.5 r2 = 0.25 but because slope of regression line is negative, then coefficient of determination would be also negative. r2 =

    asked on April 24, 2017
  74. S.S.

    How was Hitler killed?

    asked on April 12, 2017
  75. Algebra 1

    Convert to slope intercept form 2x+3y=12 Is this correct y=4-2/3x 2x-y=4 is this correct?y=2x-4

    asked on December 7, 2016
  76. chemistry

    If dissolving 2g of ionic salt causes 50ml of water in increase temp. by 15 degrees Celsius at constant pressure, what would be the change in temperature if 6g of the same ionic salt were used instead? Assume the volume of solution remains the same.

    asked on November 18, 2016
  77. Math

    Thuy is 54 inches tall.A tree in her backyard is 5 times as tall as she is. The floor of her treehouse is 108 inches from the ground. What is the difference, in inches, between the top of the tree and the floor of the treehouse? Is this correct?

    asked on November 8, 2016
  78. Physics

    ) A car is traveling on a straight, horizontal road at 20 m/s when the driver slams on the brakes. The force of friction between the car and the road is 900 N. The mass of the car is 1800 kg. (a) Make a free body diagram for the car on the set of axes

    asked on November 4, 2016
  79. math

    Sarah baked 78 cupcakes for the bake sale. Gabby baked 45 cupcakes for the bake sale. 93 cupcakes were sold at the bake sale. Which is a way to find the number of cupcakes NOT sold? A.Add 78,45,and 93. B. Find the sum of 78 and 45. Then subtract 93. C.

    asked on September 8, 2016
  80. Math

    -2(3.1) 3.1×2= When multiplying rational numbers same sign will always be positive (+) and different sign will always be negative (-). By:nimotalai Sarumi Tommy thought polat nimotalai.

    asked on September 7, 2016
  81. Math

    -2(3.1) 3.1×2=-6.2 When multiplying rational numbers same sign will always be positive (+) and different sign will always be negative (-). By:nimotalai Sarumi Tommy thought polat nimotalai.

    asked on September 7, 2016
  82. algebra

    what is the simplified form of the following question? 7m^2+6.5n-4n+2.5m^2-n

    asked on September 6, 2016
  83. Math

    morning at 10:00 am was 17.6°c. Temperatures fell by 16.7°c between 10:00 pm -11:00 pm. What was temperatures at 11:00?

    asked on August 19, 2016
  84. Chemistry

    50.00mL of 0.250M hydrochloric acid was added to 25.00mL of 0.300M potassium hydroxide. Calculate the pH of the resulting solution.

    asked on June 12, 2016
  85. math

    rosa and four friends earned money from their combined garage sale.After Rosa spent $2 out of her earnings she had $15 left. How much money n, did the combined garage sale earn?

    asked on June 8, 2016
  86. i need help please math

    describe the single transformation that would be equivalent to a reflection over the y-axis followed by a reflection over the x-axis

    asked on February 10, 2016
  87. math 2

    given a circle with (5,1) and (3,-1) as the endpoint of the diameter

    asked on February 7, 2016
  88. Math

    intersecting lines (1 point)40¨¬ 50¨¬ •• 140¨¬ 180¨¬ 2. Which word best completes this statement? Adjacent angles are ___________ congruent. (1 point)always sometimes •• never none of these 3. Which angle is adjacent to ¡ÐAFB? angles (1

    asked on January 27, 2016
  89. Language Arts

    Are you – Nobody – too? Then there’s a pair of us! Don’t tell! they’d banish us – you know! How dreary – to be – Somebody! How public – like a Frog – To tell one’s name – the livelong June – To an admiring Bog! 4. What is a

    asked on January 26, 2016
  90. physics

    A biophysics student measures her reaction time by having a friend drop a meterstick between her fingers. The meterstick falls 0.300 meters before she catches it. (a) What is her reaction time? (b) Estimate the minimum average speed of nerve impulses going

    asked on January 26, 2016
  91. physics

    (a) In 2009, Usain Bolt ran the last 100 meters of the 150-meter race in 8.70 seconds. What is Usain Bolt’s speed? (b) The world record for the 100-meter dash is 9.58 seconds (Bolt, 2009). Use the speed from part (a) as his maximum velocity. Assume a

    asked on January 26, 2016
  92. Math

    Simplify 2(x+6)-9x

    asked on January 13, 2016
  93. Math

    I am thinking of two two-digit numbers.they differ by 54.Both numbers are made up of the same digits, are reversed.What are the two numbers?

    asked on December 7, 2015
  94. Chemistry

    Determined at which temperature is the solubility of KNO3 at 60 grams per 100 grams of water

    asked on November 16, 2015
  95. Statistics

    Electricity bills in a certain city have mean $108.73. Assume the bills are normally distributed with standard deviation $10.60. A sample of 47 bills was selected for an audit. Find the 46 percentile for the sample mean. Write only a number as your answer.

    asked on October 6, 2015
  96. Statistics

    The mean monthly rent for a one-bedroom apartment without a doorman in Manhattan is $2,651. Assume the standard deviation is $500. A real estate firm samples 100 apartments. What is the probability that the average rent of the sample is more than $2,708?

    asked on October 6, 2015
  97. Statistics

    Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 babies is selected. What is the probability that the average weight of the sample is less than

    asked on October 6, 2015
  98. Math

    I need help with this problem: Circle the number closest in value to 10.1 a. 9.9 b. 9.909 c. 10.99 d. 10.5

    asked on October 3, 2015
  99. Algebra 2

    Can someone please help me solve this rational expression?

    asked on September 12, 2015
  100. Algebra 1

    A teacher buys 50 train tickets for a school trip for a total cost of $1,200. She buys x number of student tickets for $20 each. She also buys y number of adult tickets for $30 each.

    asked on August 26, 2015


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