lin

Most popular questions and responses by lin
  1. chemistry

    Is NH4+ a polar or nonpolar bond?

    asked on November 30, 2007
  2. Art

    how are art and conservation science connected in this sculpture? A. The artists was repurposing materials to create art B. The artists only used brand-new materials to create art. C. the artists created a piece that could not be sen by others D.The

    asked on November 12, 2015
  3. trig

    An airplane is traveling at a speed of 724 km per hour at a bearing of N30°E. If the wind velocity is 32 km per hour from the west, find the resultant speed and direction of the plane.

    asked on February 23, 2015
  4. English

    Which of the following statements is true of a summary? 1. A summary condenses the main points of an article. 2. A summary is quicker and easier to write than a longer original article. 3. A summary should not include evaluation and criticism. 4. A summary

    asked on October 21, 2008
  5. algebra

    A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? We have two unknowns: the amount of money invested at 9% and the amount of money invested at

    asked on October 6, 2012
  6. Math

    I cannot solve this pattern! 1,1,4,3,9,6,16,10,25,15 HINT: two different patterns are intertwined BIGGER HINT: only look at every other number This is a conjured up sequence not identifiable by any recursion formula. The first sequnece is 1 4 9 16 25 36

    asked on August 25, 2006
  7. nusyu

    A small, spherical bead of mass 3.00 g is released from rest at t = 0 from a point under the surface of a viscous liquid. The terminal speed is observed to be £oT = 2.00 cm/s. Find (a) the value of the constant b that appears in Equation 6.2, (b) the time

    asked on October 17, 2014
  8. math

    Assume the $8,000 Treasury bill, 1.75% for 50 weeks. Calculate the effective rate of interest.

    asked on October 31, 2012
  9. MATH

    TO MIX A PUNCH, LINDSAY BEGINS WITH 3 LITERS OF LEMON-LIME SODA AND ADDS 1,893 MILLILITERS OF CRANBERRY JUICE. HOW MANY 250 ML GLASSES OF PUNCH CAN BE SERVED. ROUND TO THE NEAREST TEN.

    asked on May 16, 2015
  10. Math

    Jan is making a pencil holder out of plastic canvas. The pencil holder is 4 inches high. It will not have a top. Each edge of the square base is 3 inches long. How much plastic canvas does Jan need?

    asked on April 3, 2016
  11. heeeeeeeelp physics

    Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions and collide longitudinally.The collision is perfectly elastic and the rods swap their velocities. How long does the collision last in seconds if the length of the rods

    asked on June 26, 2013
  12. Calculus

    Suppose f(x) is a differentiable function with f(-1)=2 and f(2)=-1. The differentiable function g(x) is defined by the formula g(x)=f(f(x))' A. Compute g(-1) and g(2). Explain why g(x)=0 must have at least one solution A between -1 and 2. B. Compute g'(-1)

    asked on April 1, 2012
  13. Chem

    How many moles of NH3 must be added to 1.00 L of solution to dissolve 0.979 g of CuCO3? For CuCO3, Ksp = 2.3 × 10-10. Ignore hydrolysis of CO32-, but consider the formation of the complex ion Cu(NH3)42+.

    asked on March 9, 2015
  14. helllllppp math

    In a tetrahedron ABCD, the lengths of AB, AC, and BD are 6, 10, and 14 respectively. The distance between the midpoints M of AB and N of CD is 4. The line AB is perpendicular to AC, BD, and MN. The volume of ABCD can be written as a√b, where a and b are

    asked on July 5, 2013
  15. Science

    which of the following could not have happened as a pot of water boiled on the stove? A. Particle vibration increased. B. Particle vibration decreased. C. Particles moved father apart. D. Particles moved randomly. My answer is C.

    asked on October 28, 2015
  16. Math

    a gym charges an intitL $100 membership fee and $60 each month. Write an equation that represent the total cost, C, for belonging to the club for M months

    asked on October 7, 2013
  17. math

    The population of bacteria in one cubic centimeter of the blood of a sick person has been modeled by the function P(t) = 115 t(0.88^t) where t is the time, in days, since the person became ill. Estimate how fast the population is changing 14 days after the

    asked on October 6, 2010
  18. Math

    the amount in an account which was opened 180 days ago is rm205.if the amount was offered a simple interest of 5 % per annum find the original principal?

    asked on April 26, 2019
  19. FINANCE II

    THE EXTENT TO WHICH INVENTORY FINANCING MAY BE USED DEPENDS ON?

    asked on October 6, 2009
  20. heelp math

    A graph is constructed iteratively according to the following algorithm. The graph starts as a single vertex. With probability p, the graph stops here. Otherwise, 3 new vertices are constructed and joined to this vertex. If we have a graph with more than

    asked on July 8, 2013
  21. Physics

    Physics question on identify the reaction? I am having trouble with the question a, b, and c in this physics problem: One or more external forces are exerted on each object enclosed in a dashed box shown in the figure below. Identify the reaction to each

    asked on February 27, 2011
  22. Chemistry

    A reaction is first order and it takes 324 minutes for the reaction to be 50.0% complete. How long will it take for the reaction to be 85.0% complete at the same temperature? 2. N2O5 decomposes to N2O4 and O2 and the reaction is first order in N2O5 with a

    asked on July 17, 2010
  23. physics

    The path of a projectile fired at a 30 degree angle to the horizontal is best described as 1.parabolic 2.linear 3.circular 4.hyperbolic

    asked on October 29, 2007
  24. math

    An arithmetic progression as the same first and second terms as the geometric progression. Find the sum of the first 20 terms of the arithmetic progression. How do I do this? I tried to find the common ratio for G.P. and then substitute it to find the 20th

    asked on September 14, 2016
  25. heeeeeelp math

    In a tetrahedron ABCD, the lengths of AB, AC, and BD are 6, 10, and 14 respectively. The distance between the midpoints M of AB and N of CD is 4. The line AB is perpendicular to AC, BD, and MN. The volume of ABCD can be written as a√b, where a and b are

    asked on July 7, 2013
  26. math word problems

    A ladder is leaning against a building. The distance from the bottom of the ladder to the building is 9 ft less than the length of the ladder.how high up the side of the building is the top of the ladder if that distance is 2 ft less than the length of the

    asked on August 1, 2009
  27. English

    When applicable, entries on an MLA Works Cited page must include all the following except: 1. author, title of article, title of periodical in which the article was published. 2. date of publication, volume and issue number of periodical, page numbers. 3.

    asked on October 21, 2008
  28. French

    hi there, could anyone please proof-read this for me? many thanks! il y a cinq ans que j'ai vu un accident. il faisait beau, et ma parents et moi allions du supermarché. Ma père conduisait. Quand nous passé le feux de signalisation, nous avons voyions

    asked on April 27, 2008
  29. Álgebra

    I'm thinking of two numbers. The first number is three times the second. The second number is five less than two times the first. What are my numbers?

    asked on January 20, 2017
  30. math

    how to do this? In an island, a number of survivors have enough food to last for 5 days. After 2 days, 4 of the survivors died and the remaining food lasted for 5 more days. Find the original number of survivors...

    asked on November 27, 2015
  31. physics

    A certain elevator cab has a total run of 204 m and a maximum speed is 321 m/min, and it accelerates from rest and then back to rest at 1.21 m/s2. (a) How far does the cab move while accelerating to full speed from rest? (b) How long does it take to make

    asked on October 16, 2012
  32. chemistry

    A 10.0 ml diluted chloride sample required 44.89 ml of 0.01982 M AgNO3 to reach the Fajans end point. how many moles of Cl- ions were present in the sample? What was the concentration of chloride in the diluted solution?

    asked on October 8, 2012
  33. algebra II

    Find the payment necessary to amortize the loan. 11) $ 1500; 6% compounded annually; 7 annual payments 11) _____ A) $ 271.33 B) $ 241.55 C) $ 305.05 D) $ 268.70

    asked on March 27, 2011
  34. physics helpdifficult

    i want the answer just don't leave it upon me just giving the process..................................................................................................Two thin and identical steel rods move with equal speeds v=1 m/s in opposite directions

    asked on June 27, 2013
  35. math

    The following numbers can be represented as 8-bit numbers in the binary representation.Which of these has a ‘1’ in the second place from the right in the binary representation? A. 171 B. 185 C. 214 D. A and C

    asked on January 15, 2013
  36. WORD PROBLEM

    A roofer's 30 FOOT ladder is against the side of a house. It is 8 YARDS from the ground to the top of the house. How far away from the house must he place the foot of the ladder in order to have the top of the ladder meet the roof of the house?

    asked on May 13, 2015
  37. Math

    A man bought a house for 76,000. he made a down payment of 26,000 and agreed to pay 2,500 each year with a interest of 14% on an unpaid balance. His payment at the end of the second year was?

    asked on August 8, 2013
  38. math help please

    if the product of two whole numbers is zero, then one of the factors is zero. To what axiom does this refer? I am unsure of the answer dealing wth axiom but im thinking it would possibly be the non zero divisor?? I don't know if im right

    asked on April 16, 2009
  39. English

    What does voice refer to in a sentence? What does tense refer to?

    asked on October 9, 2008
  40. Social Studies

    A person described as a nativist would most likely support what??

    asked on March 12, 2017
  41. heeeeeeeelp math

    In triangle ABC, ∠A=20∘ and ∠B=80∘. Let D be a point on line segment AB such that AD=BC. What is the measure (in degrees) of ∠ADC?

    asked on July 5, 2013
  42. geometry

    sodium has a body-centered cubic structure with a unit cell that is 430 picometers wide. estimate the radius of a sodium atom. please help me, I don't know how to get the solution. THank you

    asked on January 28, 2013
  43. English

    Hi can you please help correct this paragraph or give me direction. Thank you, the assignment is: Your cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You

    asked on September 9, 2011
  44. muet

    summary about parental guidance and home enviromen are the key to a childs academic excellence

    asked on July 11, 2009
  45. English

    What does it mean to vary the sentence pattern within a written work?

    asked on October 9, 2008
  46. English

    Explain how reading, critical thinking, and writing relate to one another.

    asked on October 9, 2008
  47. English

    What do you believe differentiates academic writing from other types of writing?

    asked on October 9, 2008
  48. SCIENCE

    3) You add 36 g of MgSO4 to pure water to a final volume of 200 mL. What concentration of solution did you make ? Express the results as percentage, % (w/v).

    asked on February 5, 2017
  49. Discriminant

    b^2-40

    asked on June 3, 2016
  50. Alpha, beta

    When I had to form an equation, I got x^2-2x+11/9. Do I have to get rid of the fraction and make it to be 9x^2-18x+11=0?

    asked on June 3, 2016
  51. heeeeeeeeelp math

    For every positive integer n consider all polynomials f(x) with integer coefficients, such that for some real number a *x(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n

    asked on July 9, 2013
  52. heeeeeeelp math

    f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

    asked on July 6, 2013
  53. math waaaaarning

    Find the sum of all primes q

    asked on June 26, 2013
  54. plsheeeeeeeeeeelp math

    Find the largest possible number of distinct integer values {x_1,x_2,…,x_n}, such that for a fixed reducible degree 4 polynomial with integer coefficients, |f(x_i)| is prime for all i?

    asked on June 22, 2013
  55. algebra

    on three consecutive passes a football team gains 7 yards, loses 22 yards, and gains 33 yards, what number represents total yardage?

    asked on February 9, 2011
  56. math

    log

    asked on January 31, 2011
  57. Chemistery

    How much heat is contained in 4 liter of liquid methanol (CH2OH) when it is completely combusted (excess oxygen) to form carbon dioxide and water. the density of metanol is 0.7918 g/ml.

    asked on October 30, 2010
  58. data

    A die is thrown 20 times and a sucess is defined as on or a six on the upace of the die,. Use binomial distribution to determine the probability of getting exactly 5 successions in 20 trials

    asked on October 8, 2008
  59. social studies

    Imperialism - foreign policy assessment of big stick, panama canal, dollar, moral and open door policies - regarding moral policy where is information about the policy, who created it, when and where it was applied, etc. I cannot find information regarding

    asked on September 17, 2008
  60. French

    Hello, can someone please proof-read this for me? thanks. sigh,i can do the exercises in the grammar workbooks but when it comes to writting passages like this...i make so many mistakes it is not funny... could someone please point out the mistakes?

    asked on April 27, 2008
  61. Calculus

    Can someone solve this integral for me? My calculator just gives me a decimal approximation but I need an exact number. Thanks! :) pi[{3ln(3)^2 - 6ln (3) + 6} - {ln(1)^2 - 2 ln(1) + 2}]

    asked on March 30, 2008
  62. social studies

    can you explain the slave trade and the 3/5 th compromise to me? what states were involved in this trade? http://www.aaregistry.com/african_american_history/552/The_ThreeFifths_compromise http://wiki.answers.com/Q/What_is_the_Three-fifths_compromise

    asked on February 9, 2007
  63. Math

    A bus leaves Town A on Saturday night and is supposed to arrive at Town B at 08:17 am on Sunday morning. If the estimated journey time is 10 hours 43 minute, at what time on Saturday should the bus leave Town A?

    asked on October 23, 2016
  64. math

    what is the remainder when 2^1000 is divided by 7??

    asked on November 27, 2015
  65. math

    how to solve for x? 5^x=(25^(2x-1))(125^(4-2x))

    asked on November 27, 2015
  66. phy

    What is the distance between an object and its real image formed by a thin converging lens with focal length f = 21 cm, if the object distance is 100 cm? (b) What is the minimum object-image distance for a real image formed by that lens?

    asked on November 8, 2013
  67. BUS

    PROVIDED ACCOUNTING SERVICES,AND ANALYZED THE FINANCIAL STRENGTH OF HER CLIENTS BUSINESSES. CARMEN IS WORKING AS A

    asked on August 12, 2013
  68. heeeeeeelp math

    For every positive integer n, consider all monic polynomials f(x) with integer coefficients, such that for some real number a x(f(x+a)−f(x))=nf(x) Find the largest possible number of such polynomials f(x) for a fixed n

    asked on July 11, 2013
  69. heeeeeeelp math3

    For every positive integer n consider all polynomials f(x) with integer coefficients, such that for some real number a *x(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n

    asked on July 10, 2013
  70. heeeelp math

    Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)

    asked on July 9, 2013
  71. heeeeeelp math

    For every positive integer n, consider all polynomials f(x) with integer coefficients, such that for some real number a x*(f(x+a)−f(x))=n*f(x) Find the largest possible number of such polynomials f(x) for a fixed n

    asked on July 8, 2013
  72. help maaaaath

    Find the largest possible number of distinct integer values {x_1,x_2,…,x_n}, such that for a fixed reducible degree 4 polynomial with integer coefficients, |f(x_i)| is prime for all i?

    asked on June 23, 2013
  73. statistics

    considering that a research can test at the

    asked on December 22, 2012
  74. math

    Facebook is becoming a social superpower with 126 million registered members who log in at least once daily. They share 1.6 billion photos and 10.6 million videos each month. What is the average number of photos and videos that each active member posts?

    asked on September 5, 2012
  75. sociolgy

    It has been said that modernization theory assomes that in backward areas modernity-inhibiting characteristics are dominant. This suggests that the effects of international factors and positive of traditional culture have no bearing on the lack of

    asked on December 18, 2009
  76. Math

    List the multiples of 4 from 8010 to 8019

    asked on August 29, 2016
  77. Divinity

    Discuss the significance of such phrases as "thus says the lord"in prophetic oracles,do they gurantee divine authority

    asked on May 5, 2016
  78. math

    how to do this?? 11/15=(1/a+(b/c+(d/e+f))) find a,b,c,d,e, and f??

    asked on November 27, 2015
  79. probability

    Let Y=X2. Calculate the following probabilities: P(Y=0)= P(Y=1)= P(Y=2)=

    asked on February 27, 2014
  80. ACC

    PATTYS BAKER HAS A COST OF GOODS SOLD FOR THE YEARS 2011,2010,AND 2009 RESPECTIVELY , OF $28,600,$26,900. AND $25,600. IF 2009 IS THE BASE YEAR, THE TREND PERCENTAGE FOR 2011 IS?

    asked on September 22, 2013
  81. heeeeeeeeelp math

    A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is

    asked on July 10, 2013
  82. heeelp math2

    Find the number of polynomials f(x) that satisfy all of the following conditions: f(x) is a monic polynomial, f(x) has degree 1000, f(x) has integer coefficients, f(x) divides f(2x^3+x)

    asked on July 10, 2013
  83. heeeeeelp math

    A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is

    asked on July 10, 2013
  84. cananyone solvethis math

    A subset S of {1,2,…,n} is said to be packed if whenever i,j∈S the number ⌊(i+j)/2⌋ is also in S. Determine how many subsets of {1,2,…,25} are packed. Details and assumptions i and j need not be distinct. If i=j is in the set, then clearly so is

    asked on July 9, 2013
  85. Computer pls help

    A Harshad Number in a given number base is an integer that is divisible by the sum of its digits when written in that base. For example, the number 11 in base 5 (which is 6 in base 10) is divisible by 1 + 1 = 2 in base 5. It is therefore a Harshad number

    asked on July 7, 2013
  86. heeeeeelp math

    x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

    asked on July 7, 2013
  87. heeeeeelpm math

    A strip of 41 squares is numbered 0,1,2,…,40 from left to right and a token is placed on the square marked 0. Pinar rolls a pair of standard six-sided dice and moves the token right a number of squares equal to the total of the dice roll. If Pinar rolls

    asked on July 7, 2013
  88. plls help maaath

    f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

    asked on July 6, 2013
  89. heeeeeelp computer

    A Harshad Number in a given number base is an integer that is divisible by the sum of its digits when written in that base. For example, the number 11 in base 5 (which is 6 in base 10) is divisible by 1 + 1 = 2 in base 5. It is therefore a Harshad number

    asked on July 5, 2013
  90. heeeeeeeeeeelp math

    A strip of 41 squares is numbered 0,1,2,…,40 from left to right and a token is placed on the square marked 0. Pinar rolls a pair of standard six-sided dice and moves the token right a number of squares equal to the total of the dice roll. If Pinar rolls

    asked on July 5, 2013
  91. heeeeeeeelp math

    Find the smallest n such that for some prime p, at least 20 of the numbers 1,2,...,n are quadratic non-residues modulo p.

    asked on July 5, 2013
  92. heeeeeeeeelp math

    Optical fibers are devices used for guiding light in many applications, most notably for fast communication. A fiber consists of a glass cylinder surrounded by a wall covered in a special coating. The fibers work on a principle called total internal

    asked on June 20, 2013
  93. calculus

    Find the dimensions of a right circular cone, that holds one liter and is made with a minimum amount of sheet metal. It is open on the top.

    asked on December 15, 2010
  94. Physics

    If given the ratio of temperatures in Celsius to Kelvin for Gold to silver as 1.10614 to 1.08265. How can I find the temperatures of each individual element form just this information?

    asked on December 8, 2010
  95. math

    x 0 0.2 0.4 0.6 0.8 1 1.2 f(x) -2 4.16 4.32 4.48 4.64 7.8 7.96 estimate of f′′(0.6).

    asked on October 8, 2010
  96. Math

    How do I write each of the factors as multiples of 10 or 100, group them so the multiples of 10 are together and determine the final product?

    asked on November 22, 2009
  97. muet

    summary about parental guidance and home enviromen are the key to a childs academic excellence

    asked on July 11, 2009
  98. english

    summary about Parental guidance and home enviroment and the key to a dhilds academic axcellence.

    asked on July 11, 2009
  99. economics

    Is it possible for a female only 21 years old and 1 year of work experience to have an income of $92560 US in the 1980s?

    asked on June 7, 2009
  100. AP chem

    is there anyway that i could also get help with the chemistry problem that eric posted?

    asked on January 23, 2008

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