Dale

Most popular questions and responses by Dale
  1. Mathematics

    The sum of the numerator and denominator of a fraction is 17. If 3 is added to the numerator, the value of the fraction will be 1. What is the fraction? Explain your workings.

    asked on January 15, 2012
  2. Chemistry/stoichiometry

    For the reaction shown, calculate how many moles of NO2 form when each amount of reactant completely reacts. 2N2O5g = 4NO2g+O2g I am assuming that the first question must be converted to grams and the second question must be converted to kilograms I just

    asked on October 26, 2012
  3. Information Literacy lesson 2

    Which of the following options are available under "filters" in Expanded Academic ASAP

    asked on March 12, 2016
  4. College Alg

    The intensity I of an x-ray after it has passed through a material that is x centimeters thick is given by I = I0e^–kx, where I0 is the initial intensity of the x-ray and k is a number that depends on the material. The constant k for copper is 3.2. Find

    asked on November 6, 2016
  5. College Alg

    A couple plans to save for their child's college education. What principal must be deposited by the parents when their child is born in order to have $41,000 when the child reaches the age of 18? Assume the money earns 9% interest, compounded quarterly.

    asked on November 6, 2016
  6. College Alg

    Suppose your salary in 2015 is $40,000. Assuming an annual inflation rate of 8%, what salary do you need to earn in 2020 in order to have the same purchasing power? (Round your answer to two decimal places.)

    asked on November 6, 2016
  7. Chemistry

    Ammonia is formed by reacting nitrogen and hydrogen gases. How many liters of ammonia gas is formed from 13.7 L of hydrogen gas at 93C and pressure of 40 kPa?

    asked on April 5, 2010
  8. History

    which staments best describe the status of women sumerian society

    asked on September 20, 2019
  9. physics

    If you live in a city your stove can be powered by natural gas. This gas is mainly methane gas and has a density of about 0.72 kilograms per cubic meter. What minimum sized balloon would you have to fill in order to be able to be lifted into the air? Take

    asked on March 14, 2012
  10. College Alg

    The probability P, as a percent, that a certain computer keyboard in a public library will last more than t years can be approximated by P = 100e^−1.2t. After how many years will the probability of keyboard failure be 76%? Round to the nearest tenth.

    asked on November 6, 2016
  11. physics

    Michaela is planning a trip in Ireland from Killarney to Cork to visit Blarney Castle. She also wants to visit Fermoy which is located 86 km due east of Killarney and 27 km due north of Cork. Draw the displacement vectors for the trip when she travels from

    asked on February 7, 2010
  12. algebra

    7x2 + 6 = 13

    asked on May 22, 2019
  13. physics

    A hockey puck of mass 0.450 kg is sliding across the ice. However, because of the frictional force between the puck and the ice, the motion of the puck is stopped in 15.8 seconds. Determine the magnitude of the frictional force.

    asked on June 11, 2011
  14. physics

    A brick is thrown vertically upward with an initial speed of 5.00 m/s from the roof of a building. If the building is 112.0 m tall, how much time passes before the brick lands on the ground?

    asked on February 7, 2010
  15. astronomy/physics

    If the Solar System had formed right after the Big Bang, it would have lacked oxygen (O), and therefore water (H2O). Using the solar nebula theory, describe what would have been most different about the planet formation process and the planets formed in

    asked on November 13, 2014
  16. Physics

    A bullet is fired into a block of wood with speed 250 m/s. The block is attached to a spring that has a spring of 200 N/m. The block embedded bullet compresses the spring a distance of 30.0 cm to the right. Determine the mass of the wooden block

    asked on March 21, 2014
  17. Math

    An airplane over the Pacific Ocean sights an atoll at an 7° angle of depression. If the plane is 850 m above the water, how many kilometers is it from a point 850 m directly above the atoll?

    asked on November 14, 2011
  18. physics

    A rubber ball is attached to a paddle by a rubber band. The ball is initially moving away from the paddle with a speed of 5.5 m/s. After 0.35 s, the ball is moving toward the paddle with a speed of 5.5 m/s. What is the average acceleration of the ball

    asked on February 7, 2010
  19. physics

    Water flows over a section of a waterfall at the rate of 5.4 104 kg/s and falls 38 m. How much power is generated by the falling water?

    asked on November 8, 2011
  20. Math ( Surveying )

    Need help with this problem! Thanks in advance. The ground clearance of an overhead electrical cable must be determined. Surveyor B is positioned directly under the cable (surveyor B can make a position check by sighting past the string of a plumb bob,

    asked on September 20, 2010
  21. World Geography

    Latin America and North America 1. The _______ were responsible for the forced migration of more people from Africa than any other colonial power. A. Portuguese B. Dutch C. Spanish D. British 2. Regarding tropical rainforests, the term evapotranspiration

    asked on February 19, 2013
  22. world geography

    1. The natural vegetation regions of sub-Saharan Africa A. are heavily impacted by human activity. B. don't correspond closely to climatic regions. C. only correspond to climatic conditions in areas of West Africa. D. are all characteristic of equatorial

    asked on February 22, 2013
  23. physics

    A car that weighs 15,000 N is initially moving at 60km/hr when the brakes are applied. The car is brought to a stop in 30m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.

    asked on June 11, 2011
  24. Physics

    A 4 kg object is suspended by a string from the ceiling of an elevator. The acceleration of gravity is 9.8 m/s2 . Determine the tension in the string if it is accelerating upward at a rate of 2.4 m/s2. Answer in units of N part 2 Determine the tension in

    asked on November 28, 2014
  25. physics

    The spring of the pressure gauge shown in the figure below has a force constant of 1,080 N/m, and the piston has a radius of 1.43 cm. As the gauge is lowered into water, what change in depth causes the piston to move in by 0.750 cm?

    asked on November 26, 2012
  26. arithmetic

    write 4.33 as a mixed number

    asked on August 4, 2014
  27. Math

    How to solve 24x^2 - 42x + 9

    asked on April 21, 2011
  28. probability

    A fishing magazine collected data and printed the following results: If there is rain then the probability of catching a fish at Lake Blue is 80%, but if it doesn't rain then the probability of catching a fish at Lake Blue is 17%. The forecast for today is

    asked on November 5, 2017
  29. Trig

    Write the following in terms of sin(θ) and cos(θ); then simplify if possible. csc(θ) - cot(θ)cos(θ) =

    asked on January 30, 2012
  30. Physics

    how many grams of water at 20 degrees celcius are necessary to change 800.0g of water at 90.0 degrees celsius to 50.0 degrees celcius?

    asked on July 21, 2013
  31. us history

    Identify the political, social, and economic aspects of Reconstruction?

    asked on September 27, 2011
  32. Chemistry/stoichiometry

    If you can do just one for me I can used it as a template to do the rest. Thank you in advance For each reaction, calculate the mass (in grams) of the product formed when 10.3 of the underlined reactant completely reacts. Assume that there is more than

    asked on October 26, 2012
  33. math

    1/(1*3) + 1/(3*5) + 1/(5*7)= 3/7 come up with a formula S(n)

    asked on December 4, 2011
  34. Algebra

    A rectangular sheet of paper measures 2/3 FT by 1/5 FT. what is the area

    asked on August 3, 2010
  35. trig

    Two sides of triangle CDE are 9 and 4, as shown. Write an equation in standard form for the line CD. Leave values as radicals. There is a picture of a triangle that passes through point (4,0) The answer is 65^1/2x + 4y = 4(65^1/2) But, I don't understand

    asked on January 28, 2010
  36. business

    Computation of Present Value) Using the appropriate interest table, compute the present values of the following periodic amounts due at the end of the designated periods. $30,000 payable at the end of the seventh, eighth, ninth, and tenth periods at 12%.

    asked on November 21, 2009
  37. Math

    Need to know the formula for find the perimeter. Need to solve this problem. A square metal box has a perimeter of 8.32". If the sides are .04" thick what is the perimeter of the inside?

    asked on September 21, 2009
  38. INFORMATION LITERACY

    What do you like and dislike about Bing(common search engine).

    asked on March 23, 2016
  39. Calculus

    If f is an exponential function of the form f(x)=C times a^x with growth factor 5 and f(5)=14. What is f(6)? I know f(6) is 70 but how do you set up the equation to get 70?

    asked on November 24, 2015
  40. Operations Management

    Can someone explain Deming's Fourteen Points?

    asked on April 4, 2012
  41. math

    (2+r)15

    asked on March 25, 2009
  42. Anthropology

    Describe an incident you participated in or observed that involved cross-cultural miscommunication. What was the outcome? You can use an incident involving miscommunication between people of different genders. This sounds like a fun assignment. You missed

    asked on June 18, 2007
  43. grammar

    I need to combine the following sentence pair. First, reduce the second sentence to a participial or n absolute phrase, changing the form of the verb if necessary. Then, insert the phrase into the first sentence. Be sure to place a participial phrase next

    asked on February 25, 2014
  44. Math

    Jane needs $30,000 to buy another new car in eight years. How much should she deposit at the end of each half year into an account that earns 4% interest compunded semianually?

    asked on May 17, 2013
  45. Physics

    Aaron (mass 60 kg) catches his running cat (mass 5 kg) moving horizontally at 1.5 m/s. What is the speed of Aaron and his cat after the catch?

    asked on February 15, 2013
  46. math

    It takes Mrs. Brown exactly 3 hours and 30 minutes to drive from her home to fayetteville. Her abverage speed is 60 miles per hour. how far is Mrs. Brown's home from fayetteville?

    asked on February 13, 2012
  47. 11th grade history

    Compare Thomas Paine to someone well known today

    asked on October 27, 2010
  48. Math

    Adam, Bill, Chris, and Dave each own one quarter of a company. Bill sells 2/3 of his shares to Dave. Adam sells 3/5 of his shares to Chris and the rest to Dave. How much of the company does Dave own now?

    asked on February 21, 2010
  49. physics

    If a pronghorn antelope accelerates from rest in a straight line with a constant acceleration of 1.5 m/s2 , how long does it take for the antelope to reach a speed of 18 m/s?

    asked on February 7, 2010
  50. Criminal Justice

    What impact does terrorism and cyber crimes have on interpreting the fourth amendment?

    asked on October 8, 2009
  51. Math

    I have 37 different dollar amounts. I also have an additional 2 dollar amounts. If I total the 2 dollar amounts I get the same number as if I total all 37 amounts. Is there a way to use this information to break up the 37 numbers into 2 sets so that each

    asked on October 17, 2006
  52. physics

    Calculate the radius of a “super- Earth” with 10 times the mass of Earth, using Earth data as a starting point.

    asked on November 24, 2014
  53. physics

    A ball (m=53g) is projected vertically with an initial speed of 9.2m/s. If the ball rises to a maximum height of 3.6m, how much kinetic energy is dissipated by the drag force of air resistance? I know it is .373J How much higher would the ball have gone in

    asked on November 10, 2010
  54. social studies

    the years between 500-1500 AD were called?

    asked on August 18, 2010
  55. Calculus I

    Hi, I'm trying to figure this out, but the answer I keep coming up with is incorrect. Can anyone help me out? Thanks. Problem: y=2(6-x^2)^5 I know I'm supposed to use the chain rule, but I'm getting confused.

    asked on October 7, 2009
  56. History

    Who was Theodor Herzl and what role did he play in WWI? What are some of the issues related to Zionism

    asked on November 9, 2017
  57. Phi

    The social contract approach to political theory

    asked on March 14, 2014
  58. Algebra

    tn = (-1)n(n) A. -1, -2, -3, -4 B. -1, 2, -3, 4 C. 1, ½, 2/3, ¾ D. 1, 2, 3, 4

    asked on June 25, 2013
  59. Mathematics

    The sum of the numerator and denominator of a fraction is 17. If 3 is added to the numerator, the value of the fraction will be 1. What is the fraction? Explain your workings.

    asked on January 15, 2012
  60. American History

    I need to compare Thomas Paine to a well known person today. Any suggestions?

    asked on October 27, 2010
  61. Finance

    You need to buy 20 computers for your business. You have the option of leasing the equipment for four years at $5,000 per year or buying the equipment at $1,000 per unit. Calculate the total cost for both options. What is the best option and why?

    asked on July 19, 2010
  62. Math

    I'm completely confused, please help explain how my teacher got this answer. How many board feet is the walking surface of my deck? How many boards are installed? This is the key she gives: 2” x 6” x 16’ long… 24’ / 6” = 24’ / .5’ = 48

    asked on February 13, 2010
  63. math

    find x in: 2x - 3 = x-1

    asked on December 20, 2009
  64. world history

    I never saw Shindler's List in the movie house because I was afraid to. So I saw it on my TV several times. My question is, what was the relationship between Amon and Helen Hirsch? Lovers? Hard to believe. What happened to her after leaving Poland? Is she

    asked on July 23, 2009
  65. math

    Given that u = {1,2,3,4,5,6,7,8,9}, A ={2,3,4,5} and B= {4,5,7,8}, list the following sets: i) Au (A1nB) ii) Bu (A1n B) iii) Au (AnB1) iv) B1u (AnB1) v) A u(A1nB1)

    asked on March 4, 2008
  66. college Algebra

    Given that u = {1,2,3,4,5,6,7,8,9}, A ={2,3,4,5} and B= {4,5,7,8}, list the following sets: i) Au (A1nB) ii) Bu (A1n B) iii) Au (AnB1) iv) B1u (AnB1) v) A u(A1nB1)

    asked on March 4, 2008
  1. social studies

    College not collage. Meh the teachers know about this.

    posted on December 3, 2018
  2. math

    i asked about 1 jar not 4.

    posted on September 20, 2018
  3. Science

    dalezone

    posted on April 24, 2018
  4. Trig

    34.3

    posted on January 24, 2018
  5. college psychology

    functional fixedness

    posted on March 24, 2017
  6. Social STUDIES

    Representative democracy

    posted on March 15, 2017
  7. prealgbra

    Rational

    posted on March 17, 2016
  8. Information Literacy lesson 2

    SORRY THE CHOICES ARE A, recognize only synonyms, B. aren't programmed to understand plain language searches, C. use only keyword searches, D. require only subject-related searches my answer will be A

    posted on March 12, 2016
  9. Information Literacy lesson 2

    think is B

    posted on March 12, 2016
  10. vocab

    a. Equality

    posted on January 11, 2016
  11. Calculus

    Thanks

    posted on November 24, 2015
  12. chemistry

    6.725x10^-28

    posted on November 9, 2015
  13. physics

    Use whatever radius of Earth that is given to you or you can find. - what do you mean by this ?

    posted on November 24, 2014
  14. world geography

    just let me know what ones are wrong if any. please and thank you.

    posted on February 22, 2013
  15. World Geography

    1.d 2.c 3.b 4.d 5.b 6.a 7.b 8.c 9.b 10.a 11.c 12.d 13.d 14.d 15.c 16.a 17.b 18.a 19.b 20.c

    posted on February 19, 2013
  16. Algebra

    (3y 2/3)-3 rewrite with positive exponents. assume that even roots are nonzero quantities and the denominator are nonzero

    posted on November 26, 2011
  17. trig

    Here's a quick sketch I made in paint. i49 . tinypic . com/2jhy0p . jpg Remove the spaces. Also, Point E is on the origin.

    posted on January 28, 2010
  18. Biology - Heart Rate/Blood Pressure

    why do we mesure our blood pressure in Hg

    posted on February 25, 2009
  19. Neon

    Neons normal phase is gas, and a slogan i found was "it wouldn't be vegas without neon"

    posted on December 8, 2008
  20. math

    Yes "U" stand for union "n" stand for intersection. The A1 is supposed to A'.

    posted on March 4, 2008