Rene

Most popular questions and responses by Rene
  1. College Algebra

    The concentration C of a certain drug in a patient's bloodstream t minutes after injection is given by C(t)=50t/t^2+25. Determine the time at which the concentration is highest. Round your answer to the nearest tenth of a minute.

    asked on October 22, 2012
  2. Trigonometry

    How do I prove that sin(x+y)-sin(x-y)=2cosx siny

    asked on April 5, 2013
  3. Physics

    Two ice skaters, with masses of 30kg & 85 kg are at the center of a 30m diameter circular rink. The skaters push off against each other & glide to opposite edges of the rink. If the heavier skater reaches the edge in 40s, how long does the lighter skater

    asked on October 19, 2010
  4. english

    I think that paragraph 3 is more effective than paragraph 1 because it is structured in a better manner and has better rhythm than paragraph1. It also has better structures sentences than paragraph 1. For example in paragraph 1 sentences like, ‘My Aunt

    asked on November 18, 2010
  5. Business

    I want to retire in 20 years. I think that I need $500,000. I have $200,000 set aside right now. If I earn 5.25%, will I have enough? How much do I need to have today in order to achieve that?

    asked on January 31, 2012
  6. MATH!!!

    Suppose that a person with a reach of 27 inches and a shoulder height of 5 feet is standing upright on a mountainside that makes a 62 degrees angle with the horizontal..Can the person touch the mountain?

    asked on March 2, 2009
  7. Physics

    Two point charges of +1.0 uC and -2.0 uC are located 0.50 m apart. What is the minimum amount of work needed to move the charges apart to double the distance between them? (k=8.99x10^9Nm^2/C^2)

    asked on February 11, 2015
  8. Science -

    "To lift an object weighing 12,000N, how much force is needed on a piston with an area of 0.060 m^2 if the platform being lifted has an area of 3.0 m^2?"

    asked on October 7, 2018
  9. physics

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

    asked on May 7, 2011
  10. Physical science

    A 3.0-kg cat runs to the left at 10m/s and a 12-kg dog runs to the right at 4.0m/s what is the total kinetic energy?

    asked on September 13, 2014
  11. algebra

    3square root 98-2square root 50+8square root 32

    asked on September 24, 2019
  12. English

    • Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. This is what I have can you please let me know if I have done this correctly. 1. Financial planning

    asked on October 2, 2010
  13. english

    this is the assignment can you tell me if i covered what was needed of the assignment? Write two paragraphs, with a total minimum word count of 350 words, explaining what your point of view will be and what you plan to accomplish in your paper. My point of

    asked on December 4, 2010
  14. Calculus

    Find the anti derivative of u^-2(1-u^2+u^4)du. Need steps so I can try to grasp this. Thanks. I couldn't figure out how to write the anti deriv. symbol but it is in front on the u^-2. Thanks

    asked on April 16, 2013
  15. SOCIOLOGY

    WHAT ASPECTS OF THE SOCIAL AND WORK ENVIROMENT IN A FAST-FOOD RESTAURANT WOULD BE OF PARTICULAR INTEREST TO A SOCIOLOGIST BECAUSE OF HIS OR HER SOCIOLOGICAL IMAGINATION?

    asked on September 1, 2010
  16. Calculus

    Find the anti derivative of the following: 1. u^-2(1-u^2+u^4)du 2. (sqrt(x)+ 3/x - 2e^(x))dx The anti derivative symbol is in front of the equations. Also need help on find f(x) so that it satisfies f'(x) = 1+e^x+1/x and f(1) = 3+e. Please show steps so I

    asked on April 16, 2013
  17. calculus

    A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?

    asked on September 15, 2010
  18. Word Problem

    A reservation clerk worked 15.3 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering

    asked on January 17, 2010
  19. ENGLISH VERBS

    WHAT ARE THE VERBS IN THE FOLLOWING SENTENCE: THE GIRL WAS NEVER ON TIME FOR SCHOOL. There is only one verb in that sentence: was. Here is a good webpage that can help you with verbs: http://members.cox.net/lenco1/grammarpractice/verbs/verb.htm =)

    asked on November 13, 2006
  20. chemistry

    mix 10ml NaBr 3.i000M wth 10ml water & 10ml AgNo3 3.3.1000M KspAgBr=5.25.1000 .what is the situation at equilibrium

    asked on November 22, 2011
  21. Math

    Mary brought home 1/2 dozen eggs. He accidently dropped the carton on the flor and 1/3 of the eggs broke. How many eggs does she have left?

    asked on March 27, 2010
  22. Team building and conflict resolution

    You are mentoring a person in another department. This person comes to you and explains that the group she is working with is arguing over procedures employed to accomplish a project. Additionally, the group members do not seem to have much respect for the

    asked on June 21, 2009
  23. MATH!!!

    Suppose that a person with a reach of 27 inches and a shoulder height of 5 feet is standing upright on a mountainside that makes a 62 degrees angle with the horizontal..Can the person touch the mountain? I said no but idk why?

    asked on March 2, 2009
  24. Chemistry

    How to write the equation for the combustion of ethane C2H6?

    asked on October 5, 2013
  25. statistics

    Suppose we have a set of blood pressures with a mean of 110 Systolic, and a sample standard deviation of 15 points. If we assume a normal distribution of Systolic blood pressures, then between what two values can we be assured 99.7% of all Systolic blood

    asked on November 28, 2011
  26. Math116

    Graph the equation by plotting points 42-6y=0

    asked on September 23, 2011
  27. government

    what are two ways that i as a young citizen can became active in politics?

    asked on December 25, 2010
  28. Algebra

    Solve for n á = (n-2) * 180 / n = 180 – 360/n

    asked on December 11, 2009
  29. Math

    Solve for n á = (n-2) * 180 / n = 180 – 360/n

    asked on December 8, 2009
  30. Physics

    due to conservation of mass, potential energy should always equal to kinetic energy. one possible reason the calculation for kinetic energy might be less than potential energy is _

    asked on June 5, 2017
  31. English

    Need a topic in Macbeth that relates to the Renaissance and today's society.

    asked on December 5, 2012
  32. Physics

    A car accelerates from rest to 30m/s in 10s. What is the car's acceleration?

    asked on January 23, 2011
  33. calculus

    A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?

    asked on September 15, 2010
  34. calculus

    The figure shows the region bounded by the x-axis and the graph of . Use Formulas (42) and (43)-which are derived by integration by parts-to find (a) the area of this region; (b) the volume obtained by revolving this region around the y-axis.

    asked on May 29, 2010
  35. Accounting

    I am working on a problem that wants me to make a balance sheet and income statement for the Argo Sales Company based on some information given that I have no idea how to compute. I have been able to figure out how to do a ratio correctly if I am given the

    asked on May 21, 2008
  36. Calculus

    Consider the function f(x) = x - lnx. Find the intervals on which f(x) is increasing and the intervals where it is decreasing. Also determine any relative max or min.

    asked on April 20, 2013
  37. Calculus

    Use logarithmic differentiation to find the derivative of f(x) = x^x+2 and simplify. Please show steps. Thanks.

    asked on April 16, 2013
  38. Calculus

    Find f(x) so that it satisfies: f'(x)=1+e^x+1/x and f(1) =3+e. Please show all steps so I can follow. Thanks.

    asked on April 16, 2013
  39. Calculus

    Find the antiderivative of (sqrt(x)+3/x-2e^(x))dx. Need steps so I can follow. Thanks

    asked on April 16, 2013
  40. Business

    I am looking at buying a new Camry. I think I can talk them down to $19,000. If the bank is willing to finance it for 60 months at 3.75%, what would my monthly payment be?

    asked on January 31, 2012
  41. science

    Determine the phenotype,give the genotypes that are possible for patrick: A tall head (T) is dominant to short (t) Tall= Short=

    asked on October 19, 2011
  42. trig

    evaluate cos 12*pi

    asked on October 13, 2011
  43. Math

    what does the output is 6 less than one-half of the input mean?

    asked on September 19, 2011
  44. English

    Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. · Use at least five different pronouns in your sentences. Please let me know if I have done this correctly. While away at

    asked on October 19, 2010
  45. Algebra

    Find the LCM of (7+9u), (49-81u^2), and (7-9u) Find the LCM of 15x^8 and 75x^8

    asked on July 11, 2010
  46. Algebra

    Write an equation of the line satisfying the given conditions. Horizontal line through ( -2, -5)

    asked on January 17, 2010
  47. Physics

    How much time is needed to produce 840 joules of work if 100 watts of power is used?

    asked on June 5, 2017
  48. math

    A roll of ribbon contains 92 inches of ribbon. If you need strips of ribbon 4/5 inches long, how many strips could you cut from this roll?

    asked on January 28, 2015
  49. calculus

    Find any relative extrema and any points of inflection if they exist of f(x)=x^2+ ln x^2 showing calculus. Please show work in detail so I can follow. Thanks. The answer is no relative max or min and the points of inflection are (1,1) and (-1,1) but I'm

    asked on May 4, 2013
  50. Calculus

    Find the derivative of f(x)=ln(e^(2x)/((x^2-4)^3) Please show detail so I can use for reference. Thanks!

    asked on April 21, 2013
  51. Calculus

    Consider the function f(x) e^x-1/2x^2. Find all points of inflection if they exist. Please show sign graph and show work in detail so I can follow for future reference. Thanks.

    asked on April 20, 2013
  52. Calculus

    Find f(x) so that it satisfies: f'(x)=1+e^x+1/x and f(1)=3+e. Another tutor was kind enough to give me the anti deriv as x+e^x+ln x+c and that the constant is 2. But I can't figure how to prove it or where to start so I will know for the test. Thanks.

    asked on April 16, 2013
  53. Calculus

    Find f(x) so that it satisfies: f'(x)=1/sqrt(x) and f(4)=2. Please show steps I keep getting stuck at the anti derivative and the constant doesn't solve it so I don't know where I went wrong.

    asked on April 16, 2013
  54. Calculus

    Find the anti derivative of (u^-2(1-u^2+u^4)du. Need steps so I can try to grasp this. Thanks

    asked on April 16, 2013
  55. Calculus

    Determine the equation ofthetangent line in slopeintercept form at x=1 of y^3 +2x^2=1 at x=1. Please show work so I can follow the process. Thanks!

    asked on April 1, 2013
  56. math 116

    8x 4=4x 7 simplify this is what I come up with is this correct? x = 3/4

    asked on September 11, 2011
  57. Algebra 1

    -3x + 6 < 21 I need help in solving this problem step by step. Can anyone help, please? thank you very much.

    asked on January 4, 2011
  58. composition

    • Write a paragraph of at least 200 words identifying three challenges that might arise when writing a paper.

    asked on November 7, 2010
  59. Math

    Mary brought home 1/2 dozen eggs. He accidently dropped the carton on the flor and 1/3 of the eggs broke. How many eggs does she have left? Ms. Sue I still don't understand your answer, please. Thank you

    asked on April 5, 2010
  60. critical thinking 205

    How can a person distinguish between the prejudicial and nonprejudicial use of rhetorical? Provide an example of each.

    asked on April 14, 2009
  61. Intermediate algebra

    Seven times the difference of six and a twice a number yields the same result as the same number decreased by one.

    asked on May 25, 2008
  62. math

    You are paid $40 an hour to wash windows. If you have worked for 4 4/5 hour, how much money have you earned?

    asked on January 28, 2015
  63. Physics

    A certain meter stick is calibrated in millimeters (the distance between two consecutive marks is ONE mm). A student measured the longest edge of a book and found that it was greater than 364 mm and less than 365 mm, but it was CLOSER to 365 mm than 364

    asked on September 14, 2012
  64. Business

    I want to buy a house in 3 years. I need to have a down payment of $20,000. How much do I need to have today in order to have that if I can earn 4.5%?

    asked on January 31, 2012
  65. math

    what is -4x+6=-42?

    asked on June 2, 2011
  66. english

    Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

    asked on October 30, 2010
  67. english

    Compare and contrast your abilities as an academic writer now as opposed to when you began at Axia College. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make in the

    asked on October 29, 2010
  68. sentence

    can u tell me what this means. i don't under stand it, the home work sheets say they want the kids to " write one sentence about your favorite dr.seuss center "

    asked on March 2, 2010
  69. math

    what is n to the 101 power and how would you use progression to solve it?

    asked on March 16, 2008
  70. english

    Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

    asked on October 30, 2010
  1. Physics

    So, let's go. Vf^2{squared final velocity}= Vi^2{squared initial velocity}+2a{acceleration}d{distance}. Acceleration is 9.8 for gravity, good luck my dudes.

    posted on January 29, 2019
  2. science

    how do you test luster

    posted on September 30, 2018
  3. chemistry

    52

    posted on April 17, 2018
  4. math

    655.27

    posted on January 28, 2018
  5. Health JUST NEED ANSWERS CHECKED :)

    It's correct just took the test 100%

    posted on December 19, 2016
  6. Chemistry

    4g/ml

    posted on November 22, 2016
  7. Math! Please help! Now!!!

    C. 7.75

    posted on October 4, 2016
  8. science

    B C A

    posted on October 4, 2016
  9. Math

    or 20

    posted on October 22, 2015
  10. Math

    i think the answer of the 2 numbers one is 15 and One is 5 it would be 10.

    posted on October 22, 2015
  11. Math

    3.6 in simplest form

    posted on September 5, 2015
  12. Physics

    The white car leaves the stop sign to make a left turn, the van is coming straight at the White car before impact the van leaves 20ft of skid marks . How fast was the van traveling?

    posted on May 24, 2014
  13. English 101

    1. A 2. B 3. D 4. D I want to see if the answers are correct

    posted on June 24, 2013
  14. English 101

    1. A 2. B 3. D 4. D

    posted on June 24, 2013
  15. Chemistry help please

    answer, pls

    posted on December 16, 2012
  16. College Algebra

    Thank you. I looked at the table and 5 was 5 so I thought I was on the right track but just wanted to make sure. Thank you so much!

    posted on October 22, 2012
  17. College Algebra

    I thought that could be the solution. I graphed it on my calculator and I come up with a maximum of 5. Does this seem correct?

    posted on October 22, 2012
  18. math

    3.375

    posted on April 14, 2012
  19. Algebra I

    x=1,000

    posted on January 14, 2012
  20. orientalism of muslim and arab american

    UOP student here! I do not get on here to have people do my homework. I look for ideas on how to answer the questions I have not take the answers and turn them into mine.

    posted on January 14, 2011
  21. physics

    Chairs in an orbiting spacecraft are weightless. I you were on board and you were barefoot, would you stub your toe if you kicked a chair?

    posted on January 3, 2011
  22. english

    Thanks so much

    posted on October 30, 2010
  23. english

    Thanks besides that does the second half look alright with the super and comp

    posted on October 30, 2010
  24. english

    thank you

    posted on October 29, 2010
  25. calculus

    thank you!

    posted on September 16, 2010
  26. PLZ HELP MATH

    who is number 2?

    posted on March 2, 2009
  27. Math help

    oops the question was suppose to read a rocket shoots striaght up from the launch pad. Five seconds after lift off, an observer 2 miles away notes that the rocket's angle of elevation is 3.5 degrees. Four seconds after that, the angle of elevation is 41

    posted on March 2, 2009
  28. MATH!!!

    but that is what im trying to find out..why its is impossible?

    posted on March 2, 2009