Popular questions and responses by Jamie
  1. Math

    A semi circle sits on top of a rectangle to form the figure below find its area and perimeter use 3.4 for pie on the side 4 inches and on the bottom 6 inches what is the answer

    asked on November 6, 2017
  2. Math

    Orly uses 2 cups of raisins for every 8 cups of trail mix she makes how many cups of trail mix will she make if she uses 12 cups of raisins

    asked on November 6, 2017
  3. Physics

    A rope is tied to a box and used to pull the box 1.7 m along a horizontal floor. The rope makes an angle of 30∘ with the horizontal and has a tension of 5 N. The opposing friction force between the box and the floor is 1 N. Part A How much work does

    asked on November 12, 2017
  4. Mathematics

    When two balanced dice are rolled, 36 equally likely outcomes are possible as shown below. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 1) (2, 2) (2, 3) (2, 4) (2, 5) (2, 6) (3, 1) (3, 2) (3, 3) (3, 4) (3, 5) (3, 6) (4, 1) (4, 2) (4, 3) (4, 4) (4, 5) (4,

    asked on December 5, 2009
  5. biology

    which of the following is not a part of the theory of evolution

    asked on May 13, 2014
  6. Physics - I just need help with c

    I just need some clarification on part (c). Here's the whole problem for context: A uniform solid cylinder of mass 10 kg can rotate about a frictionless axle through its center O, as shown in the cross-sectional view in the figure. A rope wrapped around

    asked on March 26, 2018
  7. Chemistry

    Calculate the empirical formula of Tylenol: C, 63.56%; H, 6.00%; N, 9.27%; O, 21.17%

    asked on March 26, 2016
  8. Math

    Gymnast Clothing manufactures expensive hockey jerseys for sale to college bookstores in runs of up to 250. Its cost (in dollars) for a run of x hockey jerseys is C(x) = 2500 + 10x + 0.2x2 Domain(0 ≤ x ≤ 250) Gymnast Clothing sells the jerseys at $105

    asked on February 11, 2012
  9. Math liberal Arts

    A bag contains 5 red marbles, 4 blue marbles, and 1 green marble. If a marble is selected at random, what is the probability that it is not blue?

    asked on November 19, 2014
  10. science

    3. Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s) + 2HBr(aq) ---> FeBr2(aq) + H2(g) What mass of HBr (in g) would you need to dissolve a 3.2 gram pure iron bar on a padlock? What mass of H2 would be produced by the

    asked on February 14, 2010
  11. Algebra

    If the demand function for a commodity is given by the equation p2 + 16q = 1200 and the supply function is given by the equation 300 − p2 + 6q = 0, find the equilibrium quantity and equilibrium price.

    asked on November 11, 2015
  12. physics

    explain briefly why a razor blade floats in water and when soap solution is carefully added to the water it sinks

    asked on April 17, 2020
  13. Business Law

    Limited Liability Companies. John, Lesa, and Trevor form a limited liability company. John contributes 60% of the capital, and Lesa and Trevor each contribute 20%. Nothing is decided about how profits will be divided. John assumes that he will be entitled

    asked on April 12, 2010
  14. Chemistry 2 - Acids and Bases

    Hydrazine (NH2NH2) is a weak base that ionizes in water as follows. NH2NH2(aq) + H2O(l) HNH2NH2^+(aq) + OH^−(aq) Calculate the concentration of OH^− ions in a 0.20 M solution of hydrazine, given that the base-dissociation constant (Kb) for hydrazine is

    asked on February 28, 2018
  15. Algebra 2

    The length of a rectangular window is 5 feet more than its width, w. The area of the window is 36 square feet. Write an equation to represent the area of the window. Please have your final equation equal to zero.

    asked on February 20, 2015
  16. Math

    Q1. A population has a mean of µ = 80 with σ = 20. a. If a single score is randomly selected from this population, how much distance, on average, should you find between the score and the population mean? 20 because the standard deviation is 20 b. If a

    asked on May 27, 2014
  17. Chemistry

    How do I do this?? Calculate the pH at the equivalence point for the titration of 0.20 M aniline (C6H5NH2, Kb = 3.8 x 10-10) with 0.20 M HCl. [Hint: remember the dilution factor caused by addition of titrant to the aniline solution.]

    asked on October 15, 2009
  18. algebra

    A satellite dish has a parabolic cross section and is 6 ft deep. The focus is 4 ft from the vertex. Find the width of the satellite dish at the opening. Round your answer to the nearest foot. Thank you

    asked on May 1, 2013
  19. Math

    Suppose that ln2=r. Use properties of logarithms to write the logarithm in terms of r. ln32=__

    asked on November 7, 2012
  20. Chemistry

    One of the substances that give wet goats and dirty gym socks their characteristic odors is hexanoic acid, CH3CH2CH2CH2CH2CO2H, which is a monoprotic weak acid. (a) Write the formula for the conjugate base of this acid.

    asked on June 9, 2012
  21. Math Probability

    You roll a number cube 20 times. It lands on 2 five times. What is the experimental probability of rolling a 2? 1}40% 2)10% 3)25% 4)17% I think #3 Thanks

    asked on May 12, 2017
  22. Heat Capacity

    When a 3.25 g sample of solid sodium hydroxide was dissolved in a calorimeter in 100 g of water, the temperature rose from 23.9 C to 32.0 C. Calculate delta H (in kJ/mol) of for the solution process: NaOH (s) -> Na+(aq) + OH-(aq) Use a calorimeter heat

    asked on December 18, 2012
  23. Algebra

    The backyard of a house is in the shape of a triangle. The longest side is 4 ft shorter than twice the shortest side. The third side is 4 ft less than the longest side. If the perimeter of the yard is 162 ft, what are the lengths of the sides?

    asked on February 9, 2012
  24. math

    A flagpole at right angle to the horizontal is located on a slope that makes an angle of 12∘ with the horizontal. The pole's shadow is 16 meters long and points directly down the slope. The angle of elevation from the tip of the shadow to the sun is

    asked on March 13, 2017
  25. Chemistry

    The rate constant for the decomposition of acetaldehyde, CH3CHO, to methane, CH4, and carbon monoxide, CO, in the gas phase is 1.59 ✕ 10−2 L/mol/s at 711 K and 3.63 L/mol/s at 855 K. Determine the activation energy (in kJ/mol) for this decomposition.

    asked on September 10, 2017

    Which answer best describes why women were active in early reform movements? A. Many Americans believed women had higher morals than men. B. Many Americans believed women could better bring about change than men. C. Women in the 19th century had plenty of

    asked on March 29, 2016
  27. accounting

    Timberly Construction negotiates a lump-sum purchase of several assets from a company that is going out of business. The purchase is completed on January 1, 2013, at a total cash price of $820,000 for a building, land, land improvements, and four vehicles.

    asked on August 8, 2014
  28. math

    -10=xy+z for x solve for x

    asked on August 26, 2018
  29. Physics

    A tennis player hits a 58.0 g tennis ball so that it goes straight up and reaches a maximum height of 7.02 m . Part A How much work does gravity do on the ball on the way up? Part B How much work does gravity do on the ball on the way down?

    asked on November 12, 2017
  30. Chemistry

    How would you write these chemical reactions?Can someone do one or two reactions for each problem, so I could get an idea of to them? ..I'm nit sure how most of the oeoducts wouls turn out..especially if it is a precipitate. 5. When Mn^2+ ions are

    asked on May 10, 2014
  31. math

    A farm has cows and ducks. There are 78 feet and 27 hands. How many of each animal are there? How do you know?

    asked on August 21, 2011
  32. physics

    Estimate the magnitude of the electric field in a cell membrane with a thickness of 8nm

    asked on February 13, 2010
  33. worl geography

    The governments of Norway, Sweden, the Netherlands, and the United Kingdom are all examples of __________. A. federations B. pure democracies C. federal republics D. constitutional monarchies

    asked on November 2, 2014
  34. Statistics

    A purchasing agent at the Kelly Bread Company wants to estimate the mean daily usage of rye flour. She takes a sample for 50 straight days and finds that the sample mean is 180 pounds with a sample standard deviation of 38.5 pounds. a) State the 90%

    asked on April 16, 2013
  35. math

    2) In a certain instant lottery game, the chances of a win stated as "3 in 23". Express the indicated degree of likelihood as a probability value between 0 and 1 3) A certain company reduced its management staff from 20 managers to 16. The company claimed

    asked on March 15, 2012
  36. social studies

    After the Scientific Revolution, scientists no longer made their ideas about science fit? 1) the results of their experiments 2) the teachings of the church 3)their observations in nature 4)their political beliefs I think #2 Thanks

    asked on October 16, 2017
  37. AP Chemistry

    The reaction of 8 grams of fluorine with excess chlorine produced 6.4 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

    asked on September 19, 2017
  38. Math Probability

    A number cube is rolled 450 times. The number 3 comes up 67 times. What is the theoretical and experimental probability of rolling a 3 ? I think the answer is 2/9 but not sure of the process. Can someone explain to me. Sorry to be so much trouble. Thanks

    asked on May 19, 2017
  39. Chemistry - Significant Figures

    Suppose it takes 35 min for 2.4 g of sugar to completely react with another reagent we added to the flask. What would the reaction rate be? Calculate to the correct number of significant figures.

    asked on May 18, 2017
  40. Algebra

    Using a graph, solve for x and y below. If 6x - 3y = 24 & 18x + 3y = 12 I know to use the forumla y = m*x + b. I also know to assume x=0 so that your starting point is (0,b) with b representing the y axis. M represents slope, which is rise over run. What I

    asked on June 20, 2015
  41. Vectors Math

    I was given this info r=1.5 m d=3 m F= 50 N angle= 110 degrees 1. What torque is APPLIED ? T=Fsin T= (1.5)(50)sin(110) T=70 N m 2. At what angle would enough force be applied to achieve maximum toque? T=Fsin T= (1.5)(50)sin(10) T=13.0 N m 3. If someone

    asked on February 28, 2015
  42. CAL

    Consider the function y = 3x^5 – 25x^3 + 60x + 1 Use the first or second derivative test to test the critical points. How many relative maxima did you find? I got this as the derivative; 15 (4-5 x^2+x^4) And I got 4 relative maxima.

    asked on January 9, 2015
  43. physics Work unit

    1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the

    asked on February 1, 2014
  44. Accounting

    Prepare a schedule that lists the components of and calculates the personal and dependent exemption amount (based on current year exemption and dependency amount) that would be included on the Brock's individual tax return based on the following

    asked on October 16, 2011
  45. Math

    Explain It: Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits? (I know the answer is the 'least whole number with 6 digits', but how can I explain it. Thanks!

    asked on September 7, 2011
  46. Physics

    The average coefficient of volume expansion for carbon tetrachloride is 5.81 10-4 (°C)-1. If a 43.0 gal steel container is filled completely with carbon tetrachloride when the temperature is 10.0°C, how much will spill over when the temperature rises to

    asked on April 27, 2011
  47. physics

    A typical steel B-string in a guitar resonates at its fundamental frequency at 240 Hertz. The length of the string is 0.620 m. What is the wave velocity along the string? Find your answer in m/s, but do not enter units. IS THE ANSWER 148.8m/s?

    asked on March 31, 2011
  48. Algebra 2

    Deandre is a software salesman. Let y represent his total pay (in dollars). Let x represent the number of copies of English is Fun he sells. Suppose that x and y are related by the equation 2400+70x=y Answer the questions below. Note that a change can be

    asked on August 26, 2018
  49. Science

    A hormone is under negative feedback regulation. This hormone stimulates water retention by the body. Which of the following will happen if water levels in the body get too high? 1) hormone levels will increase 2) hormone levels will decrease 3) antibodies

    asked on December 7, 2017
  50. Science

    Which of the following sets of terms could be used in a description of the peripheral nervous system? 1)motor neurons 2)brain and spinal cord 3)motor neurons 4)sensory neurons and spinal cord I think #1. Can you check? Thanks.

    asked on December 6, 2017
  51. Chemistry - Kinetic Molecular Theory

    Question: What is the density (in g/L) of ethyne gas at 743 torr and 12.2°C? The unrounded molar mass of ethyne is 26.036 g/mol. I did some unit conversions, so 743 torr=0.97763 atm and 12.2°C=285.35°K I used the equation d=PMr/RT and I plugged in

    asked on July 2, 2017
  52. math

    Identify the dependent variable in the relationship. A person burns a total of "c" calories by walking "m" miles. 1)calories 2)miles 3)neither "c" calories or "m" miles 4) both "c" calories and "m" miles I THINK #2, not sure because we have not gone over

    asked on April 26, 2017
  53. Science

    Which of these is an example of a biomass fuel? 1) oil 2) natural gas 3) wood 4) coal I think #3

    asked on April 18, 2017
  54. Math

    A magician showed a magic trick where he picked one card from a standard deck. Determine what the probability is that the card will be a red color queen card ?

    asked on February 16, 2017
  55. Physics, diffraction

    1. Yellow light of wavelength 580 nm shines on a diffraction grating with 4000 lines/cm. A.At what angles do the first-order and second-order maxima occur?

    asked on April 8, 2013
  56. Chemistry - Equilibrium Constant

    Determine the value of the equilibrium constant (Kp) at 800. K and 1 atm pressure. SbCl3(g) + Cl2(g) -> SbCl5(g) Delta G(o)f (SbCl5) = -334.34 kJ/mol Delta G(o)f (SbCl3) = -301.25 kJ/mol Delta H(o)f (SbCl5) = -394.34 kJ/mol Delta H(o)f (SbCl3) = -313.80

    asked on April 26, 2012
  57. grammar

    A mixture of jazz and classical idioms, the music of Gershwin was more innovative than most of his contemporaries. Can somebody tell me what's wrong with this sentence and why? I don't understand. :(

    asked on September 18, 2011
  58. Physics

    Please help ! Finish the following statement: "The greater the number of lines on a diffraction grating of a given size," a)the greater b)smaller then a)the range of wavelengths that can be diffracted b)the distance between the bright fringes produced

    asked on January 6, 2010
  59. physics

    Consider that a coin is dropped into a wishing well. You want to determine the depth of the well from the time t between releasing the coin and hearing it hit the bottom. Suppose that t=2.059 s and assume the speed of sound in air is 330 m/s. What is the

    asked on December 11, 2008
  60. science

    what is the difference between a theory and hypothesis? I got this off another site i hope it helps.. Scientific Laws, Hypotheses, and Theories Lay people often misinterpret the language used by scientists. And for that reason, they sometimes draw the

    asked on February 8, 2007
  61. science

    f energy is conserved, describe the kinetic energy of the projectile in relation to the work in and the potential energy of the counterweight.

    asked on May 23, 2019
  62. world history

    Use the excerpt below from the English Bill of Rights to answer the following question: "That the pretended power of suspending the laws or the execution of laws by regal authority without consent of Parliament is illegal; That the pretended power of

    asked on February 27, 2019
  63. hardware components

    which type of software coordinates the hardware and software of a computer to work efficiently and productively

    asked on February 11, 2019
  64. Physics

    A ball in the shape of a uniform spherical shell (like a soccer ball; I = 2/3 mr2) of mass 1.5 kg and radius 15 cm rolls down a 35 degree incline that is 6.0 m high, measured vertically. The ball starts from rest, and there is enough friction on the

    asked on April 15, 2018
  65. Math

    The equation above shows how temperature F , measured in degrees Fahrenheit, relates to a temperature C , measured in degrees Celsius. Based on the equation, which of the following must be true? A temperature increase of 1 degree Fahrenheit is equivalent

    asked on March 8, 2018
  66. Math

    If line A is a perpendicular bisector of MN, then which of the following statements is NOT true? 1)line A and MN intersect at a right angle 2)line A splits MN into two congruent segments 3)MN splits line A into two congruent segments 4)line A intersects MN

    asked on February 1, 2018
  67. Algebra

    The larger of two numbers is 11 more than twice the smaller number the sum of the numbers is 44 find each number

    asked on January 31, 2018
  68. Science

    2. Which of the following describes a relationship between science and society? A: Scientific discoveries can impact human life; therefore, society must remain scientifically literate. B: Scientific discoveries rarely impact human life; therefore, it is

    asked on August 30, 2017
  69. Math Probability

    You mix the letters M,A,T,H,E,M,A,T,I,C,A and L, thoroughly, Without looking , you draw one letter. Find the probability P(A). Write the probability as: A) fraction in simplest form B) a decimal C) a percent there are 3 letter A"s, so my answers are A)1/4

    asked on May 19, 2017
  70. math

    callum wins £300 in a raffle. he gives 5% to charity. he saves 2/5 of the £300.he uses the rest of the money to buy clothes. work out how much of the money callum uses to buy clothes./ I tried this question before in a test we got given the test back and

    asked on March 9, 2017
  71. Math - Calculus

    Directions (or bearings) on Earth are measured in degrees, running from zero to 360 degrees, clockwise, starting with 0 degrees being due North. So due East for example, is 90 degrees, due South 180 degrees, and Northwest is 315 degrees. You are swinging a

    asked on February 21, 2017
  72. Math

    The figure at right shows a long rectangular strip of paper, one corner of which has been folded over to meet the opposite edge, thereby creating a 30-degree angle. Given that the width of the strip is 12 inches, find the length of the crease.

    asked on February 19, 2017
  73. probability statistics

    how many bridge hands are possible containing 4 spaders, 6 diamonds , 1 club and 2 heart?

    asked on August 13, 2016
  74. physics

    A 5 kg block is being held against the wall. What is the minimum force needed to keep the block from moving if the force is applied at an angle that is 15 degrees above the horizontal. The coefficient of static friction between the wall and the block is

    asked on February 29, 2016
  75. Math

    After a genetics experiment on 67 pea plants, the number of plants having certain characteristics was tallied, with the results given below. Answer parts (a) through (c). 22 were tall 35 had green peas 42 had smooth peas 12 were tall and had green peas 20

    asked on September 23, 2015
  76. Math

    Will a 2-quart pitcher hold an entire recipe citrus punch -recipe- 2cups orange juice 2cups grapefruit juice 1/4 cup of apricot neater 1/3cup of pineapple juice 4cups ginger ale is the whole recipe 8 2/14 cups?

    asked on September 22, 2015
  77. language arts

    1. in diary of anne frank, act 1, what causes the franks and the van daans to move into the rooms on the top floor of the ware house? A. Their own homes have been desroyed by bombs. ***** B. They are hiding from the Nazis, who have been persecuting Jews.

    asked on March 18, 2015
  78. Spanish

    Hey, i just wanted to know if i got the questions right? Thanks Choose the sentence in which the verb, shown in quotation marks, is grammatically correct. A. El principe no "está" en casa. ➭B. ¿Dónde "es" Maria? C. Ella "está" de México. Choose the

    asked on July 7, 2014
  79. Physics Work unit

    1. A football player pushes a tackle dummy forwards at a constant 0.85m/s for 11m using 7150J of energy. The tackling dummy mass is 120kg. a) find force the player exerts? b) what is the frictional force the dummy exerts? c) what work is done by the

    asked on February 1, 2014
  80. Design

    Which design style encourages a complete manipulation of floral materials into unnatural geometric shapes and colors? A. Abstract B. New convention C. Ikebana D. New wave im thinking B

    asked on January 16, 2013
  81. trig

    Write cot(t) in terms of sin(t) if the terminal point determined by t is in the first quadrant. Do not leave a fraction inside a radical or use absolute value.

    asked on November 28, 2011
  82. Chemistry

    Just a few questions about rates of reaction. A) Why are the units for average and instantaneous rates the same? -because they are both measures of how quickly a reaction is occuring per unit time B) For a given set of data, two students determined

    asked on May 16, 2010
  83. Chemistry

    Two successive reactions, D-->E and E-->F, have yields of 48% and 73%, respectively, What is the overall percent yield for conversation of D to F?

    asked on September 27, 2009
  84. music

    the meaning of the word rest heads

    asked on September 23, 2008
  85. music

    the meaning of the words

    asked on September 23, 2008
  86. chem

    The diameter of a neutral argon atom is about 2.0 multiplied by 102 pm. Suppose that we could line up argon atoms side by side in contact with one another. Approximately how many argon atoms would it take to make the distance 1 cm from end to end?

    asked on September 8, 2008
  87. Physics- LOST!

    If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0 kg

    asked on December 3, 2007
  88. Physics

    A shell is shot with an inital velocity of 20m/s at an angle 60 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment whose speed is immediately after the explosion zero falls

    asked on January 29, 2007
  89. Math

    Erica made a poster in the shape of a quadrilateral that has only one pair of parallel sides. Which of the following names the shape of Erica's poster? 1)square 2)rhombus 3)rectangle 4)trapezoid I think# 4

    asked on February 6, 2018
  90. Physical Science A

    What daughter product is produced when thallium–206, an isotope of thallium, undergoes beta minus (β–) decay?

    asked on December 4, 2017
  91. Health and PE

    Oxygen enters the blood in the ? 1)bronchi 2)pharynx 3)larynx 4)alveoli I think #4 Thanks !

    asked on November 16, 2017
  92. Science

    Which of the following represents a heterogeneous mixture? 1)saltwater 2)air 3)bleach and water 4)chicken noodle soup I think #3 Thank you.

    asked on September 25, 2017
  93. Chemistry

    At 500 K in the presence of a copper surface, ethanol decomposes according to the following equation. C2H5OH(g) CH3CHO(g) + H2(g) The pressure of C2H5OH was measured as a function of time and the following data were obtained. Time (s) PC2H5OH (torr) 0 250.

    asked on September 7, 2017
  94. math

    A coin is flipped 3 times. How does the P (H,H,H) compare to P(H,T,H) ? 1)P (H,H,H) is greater than P(H,T,H) 2) P(H,T,H) is greater than P(H,H,H) 3)The probabilities are the same 4)There is no way to tell with the info given I think #4 is correct...can you

    asked on May 17, 2017
  95. Health

    Which statement is true about stage 3 of alcoholism? 1)malnutrition and liver and brain damage often occur 2)Teenagers go through this stage very slowly 3)The drinker becomes totally dependent on the drug 4)The drinker begins trying to escape the everyday

    asked on May 5, 2017
  96. Science

    One light bulb in a string of lights goes out. This causes all the other lights in the string to also go out. This is an example of a?? 1) resistor 2)parallel circuit 3)closed circuit 4)series circuit I think #4. Thanks in advance for your help.

    asked on May 1, 2017
  97. math

    Which of the following could be represented by -8? 1) a drop of 8 meters 2) 8 T-shirts 3) sea level in 8 places of the world 4) 8 degrees C above 0 I think #1 Thanks

    asked on April 4, 2017
  98. Math - Linear Approximation

    a) Find a linear approximation of y=sinx at x=pi/6 b) use part (a) to approximate sin(61pi/360) and sin(59pi/360) I just really have no idea how to approach this problem. I know the formula is y=f(a)+f'(a)(x-a). Does that mean it would be

    asked on March 2, 2017
  99. Calc.

    The upper right-hand corner of a piece of paper, 12 in. by 8 in., as in the figure, is folded over to the bottom edge. How would you fold it so as to minimize the length of the fold? In other words, how would you choose x to minimize y?

    asked on March 30, 2015
  100. science

    Which statement is true regarding nuclear energy? (Points : 1) Nuclear power produces no greenhouse gasses and thus poses no environmental threats. Nuclear plants rely on a massive industrial infrastructure using fossil fuels. Due to strict safety

    asked on February 2, 2015


  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10