Questions Asked on
April 22, 2008

  1. Math -- Algebra

    Why Are Mr. and Mrs. Number so Happy?

    asked by Sarah
  2. Math

    What might you have if you don't feel well?

    asked by Ben
  3. Chem

    2NH3 NH4+ + NH2- In liquid ammonia the reaction represented above occurs. In the reaction, what does the NH4+ act as? A catalyst? And acid & a base? the conjugate acid of NH3? The reducing agent? The oxidizing agent?

    asked by Trevor
  4. Math

    Why Don't They Allow Scissors in the School Cafeteria

    asked by Sarah
  5. Chem

    Ascorbic acid, H2C6H6O6, is a diprotic acide with a K1= 7.9 E-5 and a K2=1.6E-12. In a .005 M aq solution of ascorbic acid which of the following species is present in the lowest concentration. 1. H2O 2. H3O 3. H2C6H6O6 4. HC6H6O6 5. C6H6O6

    asked by Confused
  6. physics

    Water waves in a shallow dish are 5.0 cm long. At one point, the water moves up and down at a rate of 5.2 oscillations per second. (a) What is the speed of the water waves? (b) What is the period of the water waves?

    asked by phillup
  7. Chemistry

    Sodium reacts with chlorine gas according to the reaction:\ 2 Na (s) + Cl2 (g) ---> 2 NaCl (s) What volume of chlorine gas, measured at 687 mmHg and 313 K, is required to form 275 g of NaCl?

    asked by Kate
  8. Physics

    A pendulum consists of a tiny bob of mass M and a uniform cord of mass m and length L. A) determine a formula for the period B) what would be the fraction error if one used the formula for a simple pendulum.

    asked by (Simple)
  9. chemistry

    Calculate the standard cell potential for the glavanic cell in which the follwoing reactino occurs: 2I^-(aq) + Br2(l) ---> I2(s) + 2Br^-(aq)

    asked by Priya
  10. chemistry

    How do i figure out the electron configuration of Fe(C2O4)3^3- ?

    asked by help!!
  11. Chem

    .1 M HCl + .1 M NaCl .1 M HF + .1 M NaF .1 M HBr + .1 M NaBr Which of the above would be considered buffers?

    asked by Confused
  12. physics/chem

    the density of alumnium is 2.7 g/cm^3 and its molar mass is 27 g/mol. find the mass of an atom of aluminum and the numebr of alumuminum atoms per cubic meter.

    asked by billystar
  13. music

    why does music around the world impact cultures so differently?

    asked by gaby
  14. math

    An opening for a movie, every 12th person gets a free ticket, every 15th person gets free popcorn. How many people get both prizes?(please show work)

    asked by anonomous
  15. Proofread please!

    The United States, incarcerates its citizens at much greater rates than any other nation in the world (Scott, 2008). Incarceration costs in the U.S. have risen to $65 billion a year (Scott, 2008). Many crimes committed by gangs and gang members cause

    asked by Bizzy
  16. physics

    Question: A damped harmonic oscillator loses 5.0 percent of its mechanical energy per cycle. a) By what percentage does its frequency differ from the natural frequency w = sqr(k/m)? b) After how may periods will the amplitude have decreased to 1/e of its

    asked by Anonymous
  17. Physics

    If the distance between two slits is .05mm and the distance to the screen is 2.5m find the spacing between the first and second order bright fringees for yellow light of wavelenght 600nm. d=5x10^-5m L=2.5m wavelength= 6x10^-7m x=? x=wavelength*L/d

    asked by Andrea
  18. algebra

    Sean and Barry are practicing in a 30-mile bike race. Sean averages 20 miles per hour and Barry averages 15 miles per hour. Howm many miles will Barry be from the finish line when Sean finishes the race?

    asked by Astrid
  19. chemistry

    how to write this as a net ionic equation? Al(s)+ H2SO4(aq)

    asked by Tiffany
  20. Math

    How would I find the expression of the nth term sequence given the terms of 2, 1, 4/5, 5/7, 6/9 and the expression of the nth term sequence given the terms of 1/2,-1/4,1/8, -1/16?

    asked by Kelsey
  21. environmental chemistry

    Are these endothermic or exothermic? A) cracking large hydrocarbon molecules B) digesting a candy bar I don't get these. Could someone help me and explain why they are endo or exothermic?

    asked by ConfusedChemStudent
  22. 5TH GRADE MATH NEED HELP ASAP

    EXAMINE THE PATTERN AND FILL IN THE MISSING NUMBER. 1,4,27,256,___

    asked by CORBEN
  23. Chem

    Which of the following produces a coordinate complex? H2SeO4 + 2Cl- + 2H+ --> H2SeO3 + Cl2 + H2O S8 + 8O2 --> 8SO2 3Br2 + 6OH- --> 5Br- + BrO3- + 3H2O Ca+2 + SO4-2 -->CaSO4 PtCl4 + 2Cl- --> PtCl6(-2)

    asked by Trevor
  24. math

    Two mothers and two daughters were fishing.Thy managed to catch one big fish , one small fish and one fat fish . SINCE THEY CAUGHT A TOTAL OF ONLY THREE FISH , HOW IS IT POSSIBLE THAT THEY EACH TOOK HOME A FISH ? PLEASE.... EXPLAIN YOUR ANSWER :)

    asked by mota
  25. math

    Which equation has the complex number 4-3i as a root? (1) x^2+6x-25=0 (2) x^2-6x+25=0 (3) x^2+8x-25=0 (4) x^2-8x+25=0 I have no clue how to do it!!!PLEASE HELP!!!Please guide by step by step!!THANKS A LOT~!!!!

    asked by Connie
  26. Algebra

    divide: (39w+ 14 + 10w squared) / 72+ w =]

    asked by Amber
  27. psy - final rev.

    Question: By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you

    asked by rose - Ms. Sue
  28. Science

    How much energy is released when a 5600-g sample of water cools from 99 degrees C to 28 degrees C. The specific heat capacity of water is 4.18 J/(g*degrees C) Can someone please tell me the steps to do this?

    asked by Amanda
  29. science

    is it energy or heat that produces heat thanks

    asked by sam
  30. science

    the relationship between absolute zero and kinetic energy.

    asked by sam
  31. business

    hello I have subscribed with home work site" called Internet Secrets ,they offer you to design for you a web ready web site with they secrets how to publish your site and make it attractive and to make money with this site by google adsense and clicbank

    asked by andro
  32. chemistry

    is this true or false? i think its false because isnt it spontaneous if its positive When (triangle i think its called delta) H for a reaction is large and positive, the reaction is not expected to be spontaneous.

    asked by trista
  33. science HELP

    the amount of heat gained or lost by a substance is equal to the product of its heat capacity times the change in temperaturetimes its _____________

    asked by sam
  34. 7th grade science

    what is the protective sheild covering what segment of the thorax? its in grasshopper dissection

    asked by kayla
  35. Algebra I

    (39w+ 14 + 10w squared) / 72+ w =] i already know the answer but i don't know how to get it. THANNKKSS!!!

    asked by Amber =]
  36. math

    One morning , Moe, Joe and Hani left home with each one wearing a hat and a coat belonging to one of the others. Joe was wearing Moe's coat and Hani's hat . WHOSE HAT AND COAT WERE MOE AND HANI WEARING? please.... explain your answer .

    asked by mota
  37. Chemistry

    Assume that a bicycle tire with an internral volume of 1.50 liters contains 0.405 mole of air. The tire will burst if the internal pressure is 7.25 atm. What is the temperature of the air in the tire if a blowout occurs?

    asked by Jill
  38. Advanced Chem

    What would be the pH of a mixture of 50.0 mL of 0.0614 M HI and 75.0 Ml of 0.0845 M NH4NO3?? When i worked this question out, i got a basic pH of 12.42!! But I know that's not right b/c its a strong acid mixed with a weak acid (i think NH4NO3 is a salt of

    asked by Katie L
  39. chemistry

    Calculate the standard cell potentiqal for the galvanic cell in which the following reaction occurs: 2Na(s) + 2H20(l) --> H2(g) + 2NaOH(aq)

    asked by Priya
  40. Science

    Do you have any good ideas of how to make an 3d or an edible plant cell without using jello or jellytine!

    asked by Harriet
  41. algebra I

    (39w+ 14 + 10w squared) / 72+ w =]

    asked by Amber =]
  42. Algebra

    What if the last term has a square root that is a big, long decimal? you wouldn't use the decimal, would you?

    asked by corey
  43. FRENCH I REALLY NEED HELP PLZ!

    I don't understand this... Quelles sont les raisons pour lesquelles les enfants quittent la maison lorsqu'ils sont plus âges? heres my shot at it... What are the reasons pour which the kids leave the house which they are older? Here's another one..

    asked by I need help...
  44. chemistry

    is this right? A formation equation... it shows the change in enthalpy that comes from forming one mole of the compound in its standard state.

    asked by trista
  45. science

    Hi, I need scientific diagrams of the following: Mushroom (Armillaria ostoyae) Lactobacillus bulgaricus They must be detailed (ie cell wall, cell membrane etc) and at least 5 distinguishing features. Thanks

    asked by cassy
  46. science

    One last one please the amount of heat that a food gives off is measured in _________ One _________________is equal to 1000 ___________

    asked by sam
  47. Physics

    4th order dark fringe and 2nd order bright fring spaced 2.5cm apart appear on the screen placed 1 m behind the double slit. What is the spacing of the slits if the waveleght of incident light is 500nm? x=2.5cm=.025m L=1m wavelegth= 500nm = 5x10^-7m d=?

    asked by Andrea
  48. eth125

    1. Post your responses to these questions: How well do you think Native American organizations, like the Bureau of Indian Affairs (BIA), the National Congress of American Indians (NCAI), and the National Indian Gaming Association (NIGA), are helping Native

    asked by Anonymous
  49. Question for a Teacher

    Are any of you a teacher... I have an important question that has to a teacher

    asked by LT
  50. Biophysics

    Assume a liter of milk has an activity of 2400 pCi due to 40K. If a person drinks 2 glasses (0.460 l) per day, estimate the total dose (rem) received in a year. As a crude model, assume the milk stays in the stomach 13.5hr and is then released. Assume also

    asked by Sandhya
  51. Algebra

    Mutiplying a Binomial by a Trinomial (FOIL) First, Outer, Inner, Last Method (3X+2)(X-1)(X+3) I have tried equation several times. The book says the answer is: 3X 3rd + 8X 2nd - 5X -6 I get: 12X 2nd - 6X + 3X 3rd -4 Not sure if i am doing it wrong or if

    asked by G
  52. finance

    Following are rates of return on a medical equipment company stock, debt, and market portfolio, along with probablity of each state State Prob Ret.on Stock Ret.on Debt Ret.on Market 1 .1 3 8 5 2 .3 8 8 10 3 .4 20 10 15 4 .2 15 10 20 If the company's

    asked by teresa
  53. math

    I have no clue how to figure this out! Can you tell me how to figure it out? 2 positive numbers are in a ratio of 9 to 10. if the lesser number is decreased by 6 and the greater number is decreased by 25, the resulting ratio is 2 to 1. find the greatest of

    asked by Kayla
  54. math

    What is the probability of guessing 70 out of 100 multiple choice questions correct when there are 4 choices per question?

    asked by Jamal
  55. density

    calculate the mass of a substance whose density is 0.2g/cm3 and whose volume is 45cm3

    asked by aaliyah ward
  56. bussiness math

    what is the actual cost. you buy 12 rocking chairs wholesale. The invoice list price is $420. the series discounts are 20/10; the discounts are 3/10, 2/15, 1/25, 0/30. you pay the bill 12 days after recieving it.

    asked by shaquita
  57. Social Studies

    What role did the Berlin Wall play in the Cold War and what events brought the fall of the Berlin Wall(I know that the wall fell on November 9, 1989)? Im really not sure on this question.

    asked by Emily
  58. chemistry

    Balance the follwoing chemical reaction in an acidic solution __H2O(l) + __H^+(aq)+ OH^-(aq)+ __ CR2O7^2-(aq) + __ Cl^-(aq)---> __ Cr^3-+ __Cl2(aq)+ __H2O(l) + __H^+(aq) + __ OH^-(aq)

    asked by Amandeep
  59. Social Studies

    Did the american foriegn policy(the truman doctrine) succeed or fail in Korea, why or why not?

    asked by Ally
  60. psy - revised

    Question: By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you

    asked by rose - Ms. Sue
  61. math-repost

    Which equation has the complex number 4-3i as a root? (1) x^2+6x-25=0 (2) x^2-6x+25=0 (3) x^2+8x-25=0 (4) x^2-8x+25=0 I have no clue how to do it!!!PLEASE HELP!!!Please guide by step by step!!THANKS A LOT~!!!!

    asked by Connie
  62. Math

    How do I solve this? (2x^1/2) * (6x^2 - x^1/2) Here it is in words to make the equation clearer (two x to the one half power) multiplied by (6x squared minus x to the one half power)

    asked by Jackie
  63. Computers in Business

    I am in need of help with Microsoft Office Access 07. I am trying to set relationship tables and I have to enforce referential integrity on all 4 of my tables and cannot get it to work. What do I need to do? Thanks

    asked by Melinda
  64. final revision

    question: By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you

    asked by rose - spydag
  65. ALGEBRA I HELP PLEASEEE!!!!

    (39w+ 14 + 10w squared) / 72+ w =]

    asked by Amber =]
  66. science so confused??

    help please I keep reading about heat in my book and just cant get it. the amount of heat gained or lost by a substance is equal to the product of its _______ times the change in _______. Within a closed container, the heat lost by one substance must be

    asked by sam
  67. slappy science

    Heat energy does not always cause a change in temperature of a substance. Heat energy can be stored. Stored energy is called ______. Food contains stored enregy

    asked by sam
  68. math

    4-(-2)-8-(-5)= a)-5 b)-1 c)3 d)19

    asked by eva
  69. management

    Explain how the four functions of management affect globalization, technology,Innovation, diversity and ethics in a company.

    asked by patti
  70. math

    how many squares are there in the shape ? and how rectangles are there in it ? {}{}{}{} {}{}{}{} {}{}{}{} {}= mean a square ...

    asked by mota
  71. Physics

    I have to find the eccentricity of an elliptical orbit with one focus, earth's center, E. I know the formula to find eccentricity is sqrt(1-)(b^2/a^2), but I don't know where to use the radius or if I need it. Do I just need to use the eccentricity formula

    asked by Thomas
  72. science

    the making of polymers is an example of the category of work done by chemists calledd ________ fill in the answerr. please helpp!

    asked by christina
  73. accounting

    lightning industries, located in northern New England, specializes in making Flash, a low alkaline wax that is used to protect and preserve skis. the company began producing at the beginning of the production process. during january, 15300 pounds were used

    asked by ashley
  74. Algebra

    A teacher wants to give each sudent in his class some candy. He wants everyone to get an equal number of pieces. The teacher has fewer than 85 pieces of candy. If he arranges the pieces in froups of 2, 3 or 4 for each student, he wil have 1 piece left

    asked by Hailea
  75. chemistry

    Calculate the current required to transfer 0.015 mols of electrons in a time of 20 min

    asked by Priya
  76. MATH

    I AM IN 5TH GRADE AND I HAVE AN ASSIGNMENT TO FIND THE PATTERN. THE PROBLEM IS 1,4,27,256,____. I HAVE TRIED EVERYTHING BUT CAN'T FIGURE IT OUT. PLEASE HELP!

    asked by CORBEN
  77. spelling

    an antonym for "subtle" starting with "ev"

    asked by sam
  78. poetry

    can anyone give me an example or some ideas of an imagery poem? i think i know what to do but i don't have any ideas of an object to do it on. thanks so much

    asked by Anonymous
  79. trig

    What kind of reflection does the trig function y = cos(4x/3 minus 1) have?

    asked by Chaitanya
  80. Algebra

    Can you give a step by step example of how to factor a perfect square trinomial? Please :)

    asked by corey
  81. 6th math

    -a > 0 how can that be?

    asked by pam
  82. Calculus

    How do I take the integral of (9t^3 - 3t^2 + t)/3t?

    asked by Chelsea
  83. SCI

    1. how do unsaturated fats (and is there a specific type) help reduce LDL exactly? 2. So how do proteins exactly work to lower LDL? 3. what the fat soluble vitamins are and their relationship to fat?

    asked by Dawn
  84. geometry

    A rectangle has a perimeter of 98 feet. The lenght is 8 feet longer than double the width. Find each Dimension.

    asked by Angie
  85. geometry

    A rectangle field has a perimeter of 118 feet. The width is 8 feet longer than half the length. Find the dimensions of the rectangle.

    asked by Angie
  86. science

    converting 32 farrenheit to celcius

    asked by sam
  87. Needs Urgent Biology Help!

    This all about plasmids: I am totally lost, and my notes/textbook/internet doesn't give me the answer to this. Thanks for the help! Q: How is the number of fragments produced associated with the number of cut-sites available to a restriction enzymes? Q:

    asked by Biology Repost!
  88. social studies

    withoutour two great political parties cutting across economic and geographic interest,democracy as we know it could never have been made to function.the author of this statement probably meant that;

    asked by stephanie
  89. science

    the period when cell divide to create new cells is called?

    asked by stephanie
  90. Bibliography Cards

    Dont laugh at this question but if i got a magazine article off the internet would it be considered a internet source or a magazine article source?

    asked by Britney
  91. Critical Thinking

    Post your response to the following: State your stance on the Terri Schiavo case, and identify the moral value judgment that influenced you to choose your stance. • An example of a stance is, “Terri Schiavo should have been allowed to live, despite her

    asked by Jessica
  92. science

    Name 20 wild&domesticanimals?

    asked by M.Logasubramanyam
  93. ENGLISH

    Tell me about the name of 20 colours ?

    asked by M.Logasubramanyam
  94. science

    NAME 20 birds,friuts,vegetables

    asked by M.Logasubramanyam
  95. science

    NAME 20 flowers

    asked by M.Logasubramanyam
  96. American History

    1. In the 1920s the NAACP stuggles for equal justice for balck american by A. holding militant demonstrations B. Securing congressional action C. Forging stronger tires with the Republican Party D. Filling lawsuits in the courts -------------------------my

    asked by CM
  97. Health

    please check my answer thanks True or False Dry heat is the best method of sterilzation I said True

    asked by Anonymous
  98. PHYSICAL SCIENCE

    DOES MOTION PRODUCE HEAT WE NEED TO ANSWER TRUE OR FALSE ON OUR HOMEWORK IF YOU RUN THAT IS MOTION WHICH MAKES YOU SWEAT THIS IS HEAT???

    asked by claire
  99. Instructional methods

    Activiting prior knowledge Blooms Taxonomy Poetry Writing Making predictions Games Turn and Talk How does each of the above instructional strategies impact student learning.

    asked by Sarah Lee
  100. health

    Dry heat is the best method of sterilizaion to disinfect medical instruments I said True

    asked by Anonymous
  101. Mythology

    The goddess Astrea is often depicted holding what? I need it to be one or more of the following options: Scale Sword Blindfold *** if you have anything else to add please do so Thanks in advance =)

    asked by Lena
  102. French

    I'm wondering, is the first one right or is the 2nd one right? 1.) Tout le monde ne VA pas répondre corrier eléctronique 2.) Tout le monde ne VONT pas répondre corrier eléctronique Or is it something else? and im mostly wondering about the aller verb

    asked by Slappy
  103. chemistry

    What am I doing wrong? If a current of 54 A flows into a cell for 45 minutes 30 s, determine the mass of chronium deposited. My answer: 54 x 2730 s = 147420 147430/96485 = 1.52 mols m = n x M =1.52 x 52 = 79.5

    asked by Amandeep
  104. ethics

    How well do you think Native American organizations, like the Bureau of Indian Affairs (BIA), the National Congress of American Indians (NCAI), and the National Indian Gaming Association (NIGA), are helping Native Americans to advance?

    asked by brady
  105. biological

    describe how the nervous systen and hormone system enable body to maintain optimum health

    asked by Elizabeth
  106. Science

    Why is there likely to be fewer plants growing in the shaded ground under a tree than elsewhere?

    asked by Lucy
  107. math

    An island has no currency, it insted has the following exchange rate : 50 bananas = 20 coconuts 30 coconuts = 12 fish 100 fish = 1 hammock HOW MANY BANANAS EQUAL TO 1 HAMMOCK ? please ... explain your answer :)

    asked by mota
  108. algebra

    -5y>13 Is the solution to this inequity y < - 13/5?

    asked by C
  109. Economics

    What economic conditions are relevant to decision-making?

    asked by Jean
  110. Bloom's Taxonomy

    In what way does BLOOM'S TAXONOMY impact student learning?

    asked by Mike
  111. Conic Sections

    What place or object in Washington D.C. looks like a conic section?

    asked by Kaitlynn
  112. science

    Provide at least three freshwater and three ocean water resource challenges.

    asked by brady
  113. Health/Specialty Exams and Advance Techniques

    Please check my answer to this question thank you Early detection of testicular cancer relies on A a cystoscopy B self-exam by the patient C good nutrition D exercise I picked B

    asked by Salena
  114. Health/Specialty Exams and Advance Techniques

    please see if I am correct thanks True or False Glaucoma, a condition caused by increased pressure in the eye, is discovered by an ophthalmologic exam I picked True

    asked by Salena
  115. Finance

    Securities A,B,C have the following; Sec. Exp.Ret. Beta A 10 .7 B 14 1.2 C 20 1.8 According to CAPM, what is the correct slope between security A&B? A&C?

    asked by teresa
  116. Biology

    Hybrid Zones -where members of the two populations interbreed and produce offspring that are intermediate between the two species. This is an example of which factor of evolutionary change? I think it is natural selection but I am really unsure. Please

    asked by Sam L.
  117. Physics

    When you release the arm of a trebuchet and the projectile is released, I know that energy is lost/wasted. Can someone give me some good examples of what happens to this energy?

    asked by Lindsay
  118. science

    the making of plymers is an example of the category of work done by chemists called ______

    asked by christina
  119. Ap Chemistry

    Hi, I'm working out this question for homework, but i'm a little stuck. How many g of sodium hydrogen carbonate (NaHCO3) and 4.836 g of sodium carbonate must be dissolved in 750 mL of H20 in order to make a buffer with a pH of 10.27?? the ka of sodium

    asked by Norman
  120. French

    ce qui est plus correct? je LE vois ou je LUI vois?? Merci beaucoup en avance pour votre aide

    asked by Anonymous
  121. Human services

    How has society's responsibilty to individual needs changed in the last ten years?

    asked by Lynne
  122. math

    how to write decimals an two other forms example;0.9+0.04+0.003

    asked by adrie
  123. physics

    the making of polymers is an example of the category of work done by chemists caledd _______ fill in the answeerrr

    asked by christina
  124. psy- revise please

    Question: By the time people reach young adulthood, they have an idea of what causes them stress. The text discusses several sources of stress. What sources of stress did the text identify of which you were previously unaware? Has your reading helped you

    asked by rose - Ms. Sue
  125. social studies

    what is the time change and distance from nova scotia to england?

    asked by eunice
  126. Human Services

    How are data and information used within the human services organizations to support organizational planning?

    asked by mikalah
  127. AED

    help please I need info for this ? Discuss how one of the events has shaped today's classroom and how that event is still reflected in today's classroom. I chose this one for this question 1981 Distance learning becomes a reality

    asked by Dawn
  128. chemestry

    Which element of group 3A behave as a nonmetal or semimetal?

    asked by tomas
  129. Needs Urgent Biology Help!

    This all about plasmids: I am totally lost, and my notes/textbook/internet doesn't give me the answer to this. Thanks for the help! Q: How is the number of fragments produced associated with the number of cut-sites available to a restriction enzymes? Q:

    asked by Smiley Miley
  130. history

    I need urgent help finding good history websites for information on government during the turn of the century

    asked by Bob
  131. feminism/ please revise

    In Manifesta, Jennifer Baumgardner and Amy Richards, analyze the generation gap between second and third wave feminist. The book begins with a historical development of women's rights and feminism; it provides a perspective from which to view of the past.

    asked by christy
  132. Caluculus

    Can anyone help me with this problem? Suppose that during a controlled experiment, the temperature in a beaker containing some chemical substance at time t is rising at a rate of (15/13)t^2-(7t) degrees centigrade per minute. If the temperature after 1

    asked by Alice
  133. science (mass)

    Would two pieces of brass that are in the exact same shape and size have the same mass?

    asked by bobo
  134. Needs Urgent Biology Help!

    This all about plasmids: I am totally lost, and my notes/textbook/internet doesn't give me the answer to this. Thanks for the help! Q: How is the number of fragments produced associated with the number of cut-sites available to a restriction enzymes? Q:

    asked by Reposting
  135. math

    (-5)+ 13+(-10)+6=

    asked by eva
  136. math

    (-5)+ 13+(-10)+6=

    asked by eva
  137. math

    How do you factor out perfect square trinomials?

    asked by corey
  138. ecology

    water depletion in the netherlands

    asked by mel
  139. Math

    Describe what the graph of interval [-4,10] looks like. What does this mean?

    asked by Lisa Franklin