1. probability theory

    Let X, Y, Z, be independent discrete random variables. Let A= X(Y+Z) and B= XY With A, B, X, defined as before, determine wheter the folllowing statements are true or false. 1. A and B are independent 2. A and B are conditionally independent, given X = 0.

    asked by P on October 7, 2018
  2. physics

    these values were obtained as the mass of a bar of metal: 8.83g 8.84g 8.82g the known mass is 8.83g the values are both accurate and precise- true or false

    asked by tisha on September 10, 2013
  3. Credit Cards

    Say if u had a credit card balance of five hundred dollars and paid only the minimum monthly amount, the actual amount u paid 4 that five hundred would be way higher? WOuld this be true?

    asked by Anonymous on January 18, 2011
  4. Science

    A kitchen ceiling light has five lightbulbs on it. When one of the lights goes out, the other four will stay lit. This is an example of a series circuit. True or False I think FALSE because a series circuit would make them all go out.

    asked by JAMIE on May 11, 2017
  5. algebra

    You are given to equations which are both true, and you are asked to solve for both x and y. you plan o solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x’s or on y’s. the

    asked by Anonymous on December 29, 2009
  6. stats

    I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American

    asked by sandra on July 22, 2013
  7. college statistics

    I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American

    asked by penelope on July 18, 2013
  8. Chemistry

    1. The delta Hf of an element in its standard state is defined to be a) 0 kJ/mol b) 10 kJ/mol c) -10 kJ/mol d) greater than 0 kJ/mol e) a unique value for each element I am assuming its a? 2. Which of the following statements are true? I) The reaction

    asked by Bobby on July 21, 2010
  9. Psychology/ Human Growth

    6. According to Kohlberg, a person's stage of moral development is determined by the: a. Type of moral reasoning the person exhibits b. Specific moral conclusions the person reaches c. Overall intelligence of the individual d. Person’s actions in dealing

    asked by MEGHAT on March 6, 2011
  10. Plzzz help me-----Career

    1. Sally needs to gather information about careers from a print or media source. Which of the following would be a reliable resource for her? the Occupational Outlook Handbook*** Teen magazine Dateline NBC A&E's Dirty Jobs 2. Jim's mom is an accountant. He

    asked by Labbayk on November 3, 2015
  11. reliabiility

    According to classical test theory, if the observed variance of a test is 50 and the true variance is 40, what is the estimated reliability of the test

    asked by Stephanie on April 22, 2017
  12. Literature 1010

    A topic statement is made up of a limited topic and a writer's point about the limited topic? True Or False.

    asked by Alex on March 6, 2011
  13. math

    Which of the following statements is true? A. all trapezoids are similar B.all isosceles triangles are the same C.all rectangles are similar D.all equilateral triangles are similar

    asked by alfonso on December 6, 2012
  14. Science

    Which statement about scientific question is true? a. Scientific Questions should avoid bias or b. Scientific Questions should be as general as possible

    asked by Sunny on September 6, 2012
  15. US GOV

    True or false 1)few issues capture the attention of all Americans. 2)Most issues are of little interest to the majority. 1)FALSE 2)FALSE

    asked by joy on December 17, 2013
  16. math

    1. An equilateral triangle is similar to a scalene triangle. 2. Two congruent polygons are similar. 3. Two rectangles are similar. Can you please tell me if each of these are always, sometimes, or never true.

    asked by Rayden on November 30, 2017
  17. Math

    True or False. 1. Every function is a relation. 2. When you switch the inputs and outputs of any function, the resulting relation is a function.

    asked by AJ on February 3, 2018
  18. Physics

    A 36 kg box hangs from a rope. What is the tension in the rope if the following are true? (a) The box moves up a steady 5.0 m/s? (b) The box has vy = 5.0 m/s and is slowing down up at 5.0 m/s2?

    asked by Kate on June 22, 2011
  19. Physics

    A 36 kg box hangs from a rope. What is the tension in the rope if the following are true? (a) The box moves up a steady 5.0 m/s? (b) The box has vy = 5.0 m/s and is slowing down up at 5.0 m/s2?

    asked by Ashley on June 21, 2011
  20. government

    The National Government can form a new State out of an existing State without the permission of the existing state? True or False

    asked by Allison on June 26, 2013
  21. ray

    Ray AB is the same as Ray BA That is not true. Rays are directed. Ray AB starts at A, and goes through B. Line segement AB is the same as line segment BA.

    asked by angie on May 21, 2007
  22. geometry

    I really need help on this question: Determine whether each conjecture is true or false.Give a counterexample for any false conjecture. Given:Wx=XY Conjecture:W,X,Y are collinear. PlEASE HELP!!!

    asked by Rick on September 12, 2012
  23. statistic/Psychology

    According to classical test theory if the observed variance of a test is 50 and the true variance is 40 what is the estimated reliability of the test? a. 0.40 b. 0.50 c.0.80 d. 0.90

    asked by Crystal on July 27, 2013
  24. statistic/Psychology

    According to classical test theory, if the observed variance of a test is 50 and the true variance is 40, what is the estimated reliability of the test? a. 0.40 b. 0.50 c. 0.80 d. 0.90

    asked by Crystal on July 26, 2013
  25. hard math

    please someone help me! i've tried so hard! factor m^6 + n^2 28x^2y^2 - 7x^4 8x^3y^3 +343z^3 thank you so much!!! For the second one: 28x^2y^2 - 7x^4 Factor out 7x^2: 7x^2(4y^2 - x^2) Now we try to factor 4y^2 - x^2, which is: (2y + x)(2y - x) We end up

    asked by leah on January 7, 2007
  26. Statistics

    The mean and median of 100 items are 50 and 52 respectively. The value of the largest item is 100. It was later found that it is 110, not 100. The true mean and median are a) 50.1, 52 b) 50, 52 c) 50.2, 52 d) None of these

    asked by Sharon on July 27, 2011
  27. 7th grade social studies

    1. To pinpoint the absolute location of a place, geographers use (1 point) nearby landmarks. the Atlantic and Pacific oceans. the North and South poles. latitude and longitude. 2. What does the theme of movement help geographers to understand? (1 point) a

    asked by Delilah on January 1, 2013
  28. Pre-Calculus

    a jet, in calm air conditions, travel with velocity vector (389, 389). the wind velocity (in mph) at the plane's cruising altitude is given by (0, 50). how fast is the plane's true speed

    asked by Trish on February 5, 2017
  29. math

    1)The function f is defined by the equation f(x)+ x-x^2. Which of the following represents a quadratic with no real zeros? A)f(x) +1/2 B)f(x)-1/2 C)f(x/2) D)f(x-1/2) 2) If I^(2k) = 1, and i = radical -1, which of the following must be true about k? A) k is

    asked by Aline on March 2, 2018
  30. stats

    A human resources manager at a large company wants to estimate the proportion of employees that would be interested in reimbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true proportion, how many

    asked by Chad on April 15, 2010
  31. math

    Describe two ways to determine whether or not a given point is a solution of a line. Which way is more accurate? Why? The only practical and fast way is to substitute the coordinates of the point into the equation. If the equation is "true", then it is a

    asked by heather on July 30, 2007
  32. science

    a storage cell produces current through chemical reactions that can be reversed? true? a primary cells produces current thur chemical reaactions that continue until one or more reactants is used up? false? i am on the right track?

    asked by albert on June 3, 2010
  33. science

    Is it TRUE that a Cruise Liner, QE2, moves only 12 inches on 1 gallon of diesel fuel? http://www.google.com/search?hl=en&lr=&safe=off&as_qdr=all&q=+%22Cruise+Liner%2C+QE2%22+inches

    asked by Cindy on November 29, 2006
  34. Chemistry

    Which of the following statements is not true of nuclear fusion? A. It involves the joining of two atoms together into one new atom. B. It occurs in the sun and other stars. C. It only occurs in very large, heavy atoms. D. It releases very large amounts of

    asked by Ari on May 7, 2017
  35. literature

    True or False? In "Rights of Women," Anna Letitia Barbauld concludes that women will be far less satisfied in fighting for their "rights" against men (as Wollstonecraft did) then with acting in love toward men, as Nature created them to do.

    asked by dontdelay on January 15, 2011
  36. Biology HELP!

    Which of the following is true? Mark all that apply. (2 points) A hypothesis can be proved incorrect through experiment. Conclusions cannot disprove a hypothesis. Conclusions are made based on the analysis of data. Opinion is used to analyze data. A/D

    asked by XenaGonzalez on August 10, 2015
  37. Statistics

    Can someone explain to me how I got this question wrong? True/False. It is easier to reject the null hypothesis if the researcher uses a smaller alpha(a) level? I said False As alpha decreases, the rejection region also decreases.

    asked by Davina on April 29, 2016
  38. math(urgent)

    $1000 was invested for two years at 10% simple interest .calculate the effective rate was earned. pls check my solve (1+0.1/2)^2-1 = 0.1025 but the true answer is 9.54% pls help me to get the formula of effective rate

    asked by fizz on May 16, 2014
  39. chemistry

    which of the following is true regarding the inner transition elements? A. their valence electrons can be located in both s and f sublevels B. They occupy the d block of the periodic table C. These include the lanthanides and actinides and do not have f

    asked by Yui on September 15, 2014
  40. english

    Which is true of a literary argument? a. It should be impassioned in tone. b. It must be made by literary critics. c. It is a disagreement between two literary works. d. None of the above I am thinking the answer in D because a literary argument is making

    asked by catie on March 9, 2017
  41. ss

    which of the following are true statements about the qualifications of state legislature? a.senators must be at least 21 years old b.no one without a college degree may be a legislature c.legislatures must be Georgia residents for at least 2 years

    asked by sam on January 14, 2015
  42. algebra

    Suppose the singers true love gave presents for n days instead of 12 days what would the toatl number of gifts given on the nth day be?she told us that the sum of consecutive integers from 1 to n is n(n+1) over 2 Someone told me n= 12 and the sum is = to

    asked by Jill on December 20, 2009
  43. US Government

    True or False. Two interest groups, the League of Women Voters and Common Cause, fight to promote the public interest; in other words, they fight to promote people voting and ethical government.

    asked by Casey on July 9, 2014
  44. maths

    Kat has a recipe for a 10cm square based iced cake of height 5 cm. He wants to scale the recipe down for a 6 cm square based cake tin, by scaling it down all the ingredients to give a smaller cake of the same shape. Choose the three statements which are

    asked by katie on April 19, 2007
  45. adult education

    Write two paragraphs explaining the changes that you would make to revise the paper. The minimum word count for these two paragraphs is 400 words.The Dark Knight was the most popular film of 2008. [Stating it was the most popular film of 2008 is a big

    asked by Anonymous on November 9, 2010
  46. english

    The Dark Knight was the most popular film of 2008. [Stating it was the most popular film of 2008 is a big statement that needs supporting documentation. Also be sure to indent the first line of each paragraph] Unlike most popular summer movies it was also

    asked by Anonymous on November 9, 2010
  47. chemistry

    Which substances in each of the following pairs would have the greater entropy? Explain. (a) at 75°C and 1 atm: 1 mol H2O(l) or 1 mol H2O(g) (b) at 5°C and 1 atm: 50.0 g Fe(s) or 0.80 mol Fe(s) (c) 1 mol Br2(l,1 atm, 8°C) or 1 mol Br2(s, 1 atm, -8°C)

    asked by H on March 20, 2009
  48. science - need help

    a strip of silver does not react with any of the solutions tested what must be true about silver the solutions are: lead acetate zince sulfate and copper sulfate

    asked by sam on November 21, 2007
  49. biostatistic

    Is this statement true or false: when calculating correlation coefficient between two continous variables, the scale on which the variables are measured affect the value of the correlation coefficient.

    asked by nono on December 11, 2012
  50. Physics (2)

    The two particles are both moving to the right. Particle 1 catches up with particle 2 and collides with it. The particles stick together and continue on with velocity vf. Which of these statements is true? A. vf=v2. B. vf is less than v2. C. vf is greater

    asked by Anonymous on October 29, 2011
  51. psychology

    is it true that people who suffer from anterograde amnesia will recall past memories but not be able to make new ones?? or they lost the past and unable to make new memories??

    asked by Help! on April 2, 2012
  52. algebra

    A set of 2 similar triangles was drawn in a design. One of the triangles was ½ of the other. If the measures of the smaller triangle were 5, 7, and 12 cm, the measures of the larger triangle = 10,14 and 20 cm. true or false

    asked by katie on March 24, 2011
  53. math

    In a random sample of 75 individuals, it was found that 52 of them prefer coffee to tea. What is the margin of error for the true proportion of all individuals who prefer coffee?

    asked by LK on May 28, 2014
  54. history

    Is it true that during the McCarthy era that if accused communists gave names of other communists then they would be let off the hook? Like, how did it work when McCarthy asked people for names? Thanks!!!

    asked by Lydia on December 13, 2009
  55. math

    Take any two real numbers whose sum is 1(fractions, decimals, integers, etc. are appropriate. Square the larger and add the smaller. Then square the smaller and the larger. What will be true?

    asked by gt on November 4, 2009
  56. Chemistry

    True or False: The diameter of most atoms will be between 0.05 nm and 0.3 nm. I think its false (I don't think there even is an average diameter for atoms...), but I can't find any reliable sources to back up my hunch. Help please...

    asked by Melissa on December 10, 2011
  57. Math 221

    How can I explain how I got the answer. I received the help, but no explanation to how the answer was simplified. 1=1(-7) +b b = 8 In other words, you need to explain what you did to simplify 1=1(-7) + b. This is also true for the perpendicular equation

    asked by Karen on July 26, 2014
  58. calculus

    1)Which of the following results in the graph of f(x) = x2 being expanded vertically by a factor of 4? the answer is f(x) = 4x2. can you explain how. 2)Which is true for the graph of y=(x^2-9)/(x^2-4). the answer is vertical asymptotes at x = ±2 . please

    asked by maybel on April 6, 2012
  59. Pre-calculus

    1)Which of the following results in the graph of f(x) = x2 being expanded vertically by a factor of 4? the answer is f(x) = 4x2. can you explain how. 2)Which is true for the graph of y=(x^2-9)/(x^2-4). the answer is vertical asymptotes at x = ±2 . please

    asked by bordo on April 8, 2012
  60. math

    which of he following statements are true or false- 1]the diagonals of a parallelogram are equal 2]the diagonals of a rectangle are perpendicular 3] the diagonal of a rhombus are equal 4]every rhombus is a kite

    asked by Raina on June 29, 2016
  61. algebra

    when you are given two equations which are both true,and you are asked to solve for both x and y.you plan to solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x's or only y's

    asked by Anonymous on May 13, 2010
  62. algebra 2

    factor completely 3x^2-14x-24 I do not see the gcf for the problem I am totally lost can some explain please I have several these problems and i need to figure out how to solve them You put 3x^2-14x-24 = (a x + b)(c x + d) Equating the coefficients on both

    asked by CINDY on May 18, 2007
  63. Proofread Please!

    From my experience at the elementary school, I have gained insight knowledge of what happens inside a first grade classroom, such as the responsibilities that are involved with being a teacher, and the high demands of attention that is needed from

    asked by Bizzy on May 6, 2008
  64. Algebra

    Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a package (volume) while keeping how much material is required to create the package (surface area) low. Pick a product that might be

    asked by ALAYA on May 24, 2018
  65. marketing

    The total profit approach to evaluating possible product-market strategic plans: a. is the best approach to use. b. cannot be used to compare possible plans unless they are very similar. c. may support a plan that is not the most profitable in the short

    asked by Andrew on January 26, 2013
  66. Math

    I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true

    asked by Alicia on March 24, 2011
  67. discrete mathematics

    problem has to do with three valued logic, ie the values 1, 1/2, 0 interpreted as true, unknown, and false. i need to establish the connectives for the 3 valued logic, construct truth tables for the negation, conjunction, disjunction, the conditional, and

    asked by anthony on June 6, 2012
  68. stat

    A researcher at a major clinic wishes to estimate the proportion of the adult population of the US that has sleep deprivation. How large a sample is needed in order to be a 95% confident that the sample proportion will not differ from the true proportion

    asked by SD on December 5, 2015
  69. Macbeth

    Hi there. I have to write a paper on why some people believe that Lady Macbeth could be Duncan's daughter. I don't need help in writing it, I just want to know reasons why that could be true. I believe one of them is because Lady Macbeth knew that she

    asked by Jenny on April 3, 2009
  70. Grade 12 Data Management math

    I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true

    asked by Alicia on March 24, 2011
  71. Literature/Social Studies (Ms. Sue!)

    The New Frontier" by John F. Kennedy. 1. What ideas does Kennedy express by quoting William Brandford? A: By quoting William Bradford, Kennedy expresses the idea that, despite great difficulties, man can overcome anything through their will and

    asked by Anonymous on March 25, 2014
  72. us history

    the battle of chancellorville defined the union effort in the civil war as being about slavery. true or false what happened to many former slaves after the civil war? -factory workers -united states military -moved to idaho or utah -sharecroppers and

    asked by angus on January 22, 2016
  73. SS

    You have a large farm made up of mostly flat terrain in Eastern Europe. You use mechanized equipment to plant and harvest grains, like wheat and barley. Which statement is most likely true? A. You live in Greece. B. You live in southern Russia C. You live

    asked by Like I'd Tell You. on March 29, 2016
  74. L.A.

    is this a good beginning?!??! The movie, "Swing Kids", is not a light hearted, family film, but rather one that provokes deep emotions and thoughtful thinking within the viewer. This movie contains interesting information that shows the viewer how

    asked by Annie on January 25, 2010
  75. American History

    Which of the following statements is true of life in the New England colonies? A. Only married women could exercise control of their property B. Those who aspired to the social elite had to be members of a congregational church C. Literacy wasn't

    asked by Shawn on January 26, 2014
  76. Science

    This is not questions its the answers hope it helps took a long time to type. A basketball momentarily changes shape as it bounces off the floor. This is due too balanced forces acting on the ball TRUE* FALSE* A ball slowing down as it rolls across a

    asked by Peanut buddy on March 23, 2016
  77. English 12 (URGENT!!!)

    Sorry to repost this. I am still a bit confused of the last post. No Man is an Iland: "any man's death diminishes me, because I am involved in mankind" My teacher asked me for my opinion, is the quote true and I answered yes. Now I need proof to back up my

    asked by iNeedHelp on September 18, 2011
  78. Earth's Dynamic Atmosphere

    Which one of the following statements is true about the equinoxes? A. They occur in June and December. B. Days and nights are equal in length everywhere. C. The length of daylight at the Arctic and Antarctic Circles is 24 hours. D. The Sun's vertical rays

    asked by Prisila on December 26, 2017
  79. creative writing

    1. Poetry that is short in length and focuses on feelings and thoughts of the speaker or narrator is called:(Points : 3) narrative lyric a ballad a haiku 2. What is the rhyme scheme of most limericks?(Points : 3) AABBA ABBBA ABCABC AAAAB 3. Which is true

    asked by 2phoneeeeee on November 9, 2014
  80. Ethics

    The World Medical Association (WMA) states that FGM does not violate the principles of medical ethics, if FGM is part of the cultural tradition where the physician is practicing medicine. True False I say false

    asked by Anonymous on February 23, 2017
  81. physics

    8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are

    asked by John on February 9, 2013
  82. Finance

    An insurance company says you can pay for your life insurance by paying $100 at the beginning of each year or $51.50 at the beginning of each half-year. They say the rate of interest underlying this calculation is j2=3%. What is the true value of j2? The

    asked by Mella on October 5, 2014
  83. ncu

    a health care professional wishes to estimate the birth weight of infants how large a sample must she select to be 90% confident that the true mean is within 6 ounces of e sample mean. the standard deviation of birth weights is is known to be 8 ounces

    asked by lee on October 6, 2011
  84. American Gov

    Under Article V of the U.S. Constitution there are two ways to propose an amendment to the Constitution: by a two-thirds (2/3) vote of both houses of Congress, or by a national convention called by Congress at the request of two-thirds (2/3) of the state

    asked by Jason on September 23, 2011
  85. Chenistry check

    Can someone check my answer? The question is: In order for the reaction 2Al(s) + 6HCl(aq)-> 2AlCl3(aq) + 3H2(g) to occur, which of the following must be true? a. Al must be above Cl on the activity series. b. Al must be above H on the activity series. c.

    asked by Mike on March 17, 2009
  86. physics

    8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are

    asked by james on February 9, 2013
  87. biology

    Need help with FOV area (mm2) totally confused? im confused i have the FOV diameter they are: 4x = 5 10x = 2 40x = 0.5 a classmate told me she thinks the area for 40 x is: pi(5/2)^2 = 19.6 not sure if that's true or how to do it for the low and medium,

    asked by jess on May 22, 2012
  88. Reading .

    What does the speaker mean in "Any Human to Another" when he says, "Sorrow never scorned to speak / To any who / Were false or true? Humans bring sorrow upon themselves. People who are truthful can avoid suffering in life. Sorrow comes to every human

    asked by Violet on April 25, 2017
  89. Econ MC

    1. According to the median voter theorem, majority rule will a. always produce an inconclusive outcome. b. produce the outcome least preferred by the median voter. c. produce the outcome most preferred by the median voter. d. produce an outcome that is

    asked by Anonymous on March 20, 2007
  90. Health (Ms. Sue)

    Compare the stages of Maslow's hierarchy of needs. A: The first stage, the physical stage, which consists of food, water, sleep, and exercise, is ultimately essential for us to thrive and pass our genes on to the next generation. The second stage, the

    asked by Anonymous on October 27, 2013
  91. STAT

    A manufacturer of a new car claims the typical car will average 32 mpg of gasoline. An independent consumer group is skeptical of the claim and thinks the mean gas mileage is significantly different than the 32 claimed. A sample of 23 randomly selected

    asked by Serena P. on September 25, 2015
  92. Chemistry

    I: The standard reaction free energy at equilibrium is zero. II: A reaction stops when the equilibrium is reached. III: An equilibrium reaction is not affected by increasing the concentrations of products. Which of these statements is/are true?

    asked by Susan on June 3, 2014
  93. Math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written

    asked by Alfonso on March 3, 2016
  94. Physics

    Is it true that with buoyancy, the weight of the displaced water equals the weight of the complete object, even if only a part of the object is submerged? If so, why, since the weight of a larger object would be greater than that of a smaller one?

    asked by Anonymous on November 21, 2016
  95. Stats

    A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of 3987, with a population standard deviation of 630. Find the 90 percent confidence interval of the true mean. What is the upper bound of this interval?

    asked by Kyle on September 19, 2018
  96. History

    Which of the following is true of Charlemagne's reign? [choose all that apply] A- He oversaw the construction of a new basilica in Rome and named it St. Peter's B- He expanded his kingdom into the largest empire since the Romans C- He established

    asked by Ash Takeo on November 8, 2018
  97. pleasse check social studies

    The type of jurisdiction to consider the decisions of lower courts is known as _______________. (1 point) appellate original limited juvenile*** 2. Which of the following courts would hold jurisdiction over the violation of a parking ordinance in Atlanta?

    asked by XenaGonzalez on February 23, 2015
  98. science

    1. Which of the following is TRUE regarding this situation: Solution A has a pH of 7.38, and Solution B has a pH of 7.42? a.Solution B is more acidic than Solution A b.The pH of Solution A falls within the homeostatic pH range for extracellular body

    asked by a on January 28, 2013
  99. radical equation - no solution right?

    radical sign (w + 5) = 2 In all my problems there are a letter variable on the end example: radical sign (-u + 30) = u I then square both sides, drop the radical sign then (u+6)(u-5)=0 then check to see if they are both true I guess my question is this is

    asked by Nik H. on October 11, 2007
  100. math

    prove, using the law of exponents, that the following is true (2^4)^3=(64)^2 (use the same bases to rewrite the expression) the second half of =(8)^2 (8)^2 =(4)^2 (2)^2 (4)^2 (2)^2 =(2)^2(2^2)(2^2)(2^2)(2^2)(2^2) now the first part (2^4)^3 2x2x2x2 2x2x2x2

    asked by B8 on October 2, 2013