1. Algebra

    The life expectancies for men and women in the United States can be approximated by the following formulas: Women: E= 0.126t+76.74 Men: E=0.169t+69.11 where E represents the length of life in years and t represents the year of birth,measured as number of

    asked by kim on March 11, 2012
  2. Chemistry

    A radioactive sample contains 3.25 1018 atoms of a nuclide that decays at a rate of 3.4 1013 disintegrations per 26 min. (a) What percentage of the nuclide will have decayed after 159 d? % (b) How many atoms of the nuclide will remain in the sample? atoms

    asked by Trixie T on April 16, 2010
  3. Chemistry

    I'm working on a problem that says: A 4.00 gram sample of a mixture of CaO and BaO is placed in a 1.00 L vessel containing Co2 at a pressure of 730 torr and a temperature of 25C. The CO2 reacts with the CaO and BaO forming CaCO3 and BaCO3. When the

    asked by Zara on August 12, 2015
  4. Im very confused and need help- Language Arts

    1. The memory of cannon fire fades like evening mists 2. Footsteps echo softly on the grass above me 3.My bride kneels at a stone Part A) After reading the poem, what conclusion can you draw about the speaker? The speaker is a soldier, in his first battle,

    asked by Harley on February 22, 2018
  5. EMERGENCY!!!

    HELLO! I DON'T KNOW WHAT'S GOING ON WITH ME LEFT HAND. MY PINKY IS SWOLLEN AND I HAVE NO IDEA WHY MY PINKY IS SWOLLEN. I DON'T REMEMBER INJURING MY LEFT HAND OR MY PINKY IN ANY WAY TODAY AND NONE THIS PAST WEEEK. WHEN I BEND MY PINKY I FEEL NUMNESS AND

    asked by Mack on November 19, 2007
  6. Physics

    Draw the figure. You have the following equations that you can write: a) Sum Vertical Forces=0 b) Sum horizontal forces=0. Remember that at the upper part of the ladder, there is a horizontal force (only). c) Sum of moments about any point, I suggest the

    asked by bobpursley on May 31, 2007
  7. Chem

    The apparent equilibrium constant for the reaction A + B 2C is Kc= 4.11 at 298.2 K. Given that the initial concentrations of A, B, and C are .10M, .10M, and zero, respectively, find the equilibrium concentrations of A, B, and C. I had this long, drawn out

    asked by Chris on April 16, 2007
  8. economics

    18. (Shifts in the PPF) Terrorist attacks foster instability and may affect productivity over the short and long term. Do you think the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon affected short- or long term

    asked by Gary on August 23, 2010
  9. speech/english

    this is kinda similar to last nights question We have to write an introduction, thesis, and now part of the body My topic was if I could do anything without getting in trouble, what would it be? My introduction is life is a risk itself, can you imagine how

    asked by jerson on March 31, 2009
  10. Chemistry, PPPLLEASE Help!

    Hello, I'm confused on what these problems are telling me. Is questions a) and b) the same? I don't know, please help me I don't know what to do... The inteconversion of DHAP and G3P is a part of both the glycotic pathway and the Calvin cycle for

    asked by Krissy on September 25, 2006
  11. Physics

    With the engines off, a spaceship is coasting at avelocity of +260m/s through outer space. The ship carries rockets that are mounted in firing tubes, the back ends of which are closed. It fires a rocket straight ahead at an enemy vessel. The mass of the

    asked by Cavin on March 1, 2007
  12. Math

    One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be combined to produce a 30 pound alloy that is 1 part iron to 1 part silver?Please show me how to do this

    asked by Bob on April 14, 2016
  13. math

    tyson charges $20 per square foot of rug for a basic design. a client orders one basic rectangular-shaped rug that is 6 feet long and 4 feet wide and one basic rug shaped like a parallelogram that is not a rectangle with a base that is 8 feet long and a

    asked by andrea on March 23, 2016
  14. calculus

    a dvision of sellier industries manufacturers the perfect model cellular phone. the daily cost (in dollars) of producing these cellular phones is C(x) = 0.0002x^3-0.06x^2+120x+5000 where x stands for the number of units produced what is the actual cost

    asked by petal on May 1, 2011
  15. Biology

    Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg

    asked by Anonymous on April 17, 2017
  16. Chemistry

    Which of the following is true? A. In the human female, ovulation occurs in nine-month cycles. B. Egg cells develop in a structure called the uterus and are released at the rate of one a month. C. Spermatogenesis is the process of fertilization of the egg

    asked by Anonymous on April 17, 2017
  17. Business

    Communist Prison Camp In such prisons the total regimen, consisting of physical privation, prolonged interrogation total isolation from former relationships and sources of information, detailed regimentation of all daily activities, and deliberate

    asked by Rob on October 15, 2010
  18. Science

    Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements

    asked by Cami on November 6, 2015
  19. Physics

    Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How much mercury can be poured in before the mercury overflows? Assume air to act like an ideal gas. The long and short arms are 1 m

    asked by Isabel on February 23, 2010
  20. Math: pre calculus

    a barn is 150 feet long and 75 feet wide. the owner has 240 ft of fencing and wants to construct two adjacent outdoor pens of identical size along the long side of the barn using the barn as one side of each pen. the owner wants the pens as large as

    asked by crisly on September 11, 2014
  21. Physics

    Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How much mercury can be poured in before the mercury overflows? Assume air to act like an ideal gas. The long and short arms are 1 m

    asked by I on February 22, 2010
  22. Physics

    Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How much mercury can be poured in before the mercury overflows? Assume air to act like an ideal gas. The long and short arms are 1 m

    asked by Isabel on February 22, 2010
  23. Physics

    A boy is whirling around a stone tied at the end of a 0.71 m long string at constant angular speed of 4 revolutions per second in a plane perpendicular to the ground. The string breaks when it is making an angle of 54 degrees above the horizontal and the

    asked by Lola on November 27, 2009
  24. Math

    A student cuts 1/3 of a coil of wire. He then cuts out another piece that was 8 meters long (I assume from the remaining coil). The two pieces of cut off wire are only half the total length of the wire. How long was the coil before the student cut it? I am

    asked by Lulu on April 14, 2016
  25. Physics

    Mercury is poured into the open end of a J-shaped glass tube, which is closed at the short end, trapping air in that end. How much mercury can be poured in before the mercury overflows? Assume air to act like an ideal gas. The long and short arms are 1 m

    asked by Isabel on February 23, 2010
  26. algebra 1

    Fiber-optic cables are used widely to increase the speed and accuracy of data transmission. When light passes through a fiber-optic cable, its intensity decreases with the increase in the length of the cable. If 1700 lumens of light enters the cable, the

    asked by nicol on July 25, 2014
  27. LANGUGE ARTS HELP ME FIRTS POST EVER

    Kathrine Switzer’s Run to Remember 1 Long-distance footraces, known as marathons, are celebrated events in American culture. Hundreds and sometimes thousands of people come together to test their endurance and to take part in good-natured competition.

    asked by LALALMAMACASA on November 30, 2017
  28. chemistry, please help

    2NO2(g)--> 2NO(g) + O2(g) , H=+114.2kJ (Note: H, S, G all have a degree sign next to them) NO: H(enthalpy)=90.3kJ/mol, S(entropy)=210.7J/mol*K, G(gibbs energy)=86.6 O2: H(enthalpy)=0, S(entropy)=?, G(gibbs energy)=0 kJ/mol NO2: H(enthalpy)=33.2, S=239.9,

    asked by apoorva on February 4, 2008
  29. SOCIAL STUDIES

    1. Which activity is part of both private and civic life? (1 point) learning about politics •• voting for a candidate going to sports games working at a bookshop 2. Why are elections necessary for good governance? (1 point) Elected officials can be

    asked by GrimmGamer on October 20, 2016
  30. 11th grade

    A bus travel 250km south along a straight path with the average velocity of 84km/h to the the bus stop for 26 min. Then in it travel 240km with avrage 70km/h to the south.How long long did the hold trip take? What is the average velocity of the trip?

    asked by taylor on September 20, 2010
  31. physics

    1. At some automobile toll-collecting stations, a thin metal wire sticks up from the road and makes contact with cars before they reach the toll collector. What is the purpose of this wire? 2. The leaves of a charged electroscope collapse in time. At

    asked by Nicole on July 14, 2010
  32. physics

    As you hurry to catch your flight at the airport, you encounter a moving walkway that is 85m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68s to cover 85m when walking on the ground, how long will it take you to cover the same

    asked by Erin on October 2, 2011
  33. word problems

    miguel is 5ft 10 inches tall On a sunny day he casts a shadow of 4ft 2 inches long. At the same time, a nearby electric tower casts a shadow 8ft 9 inches long. How tall is the tower? Please help me set up the equation. Do i use is actual height or his

    asked by april on January 15, 2015
  34. math!

    1. a flagpole is 20ft tall and casts a 28ft long shadow . a tree has a shadow that is 49 ft long. how tall is the tree? 2. there are 6 pieces of paper in a box numbered 1 through 6. mark needs to pick a 3 and then a 5 in order to win. the first pick is not

    asked by Sara! on May 31, 2010
  35. algebra

    2. The equation D=1.2 square h gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a. Solve this equation for h. b. Long’s Peak in Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see

    asked by kathy on March 23, 2010
  36. physics

    A model rocket is launched straight upward with an initial speed of 47.7 m/s. It accelerates with a constant upward acceleration of 2.02 m/s2 until its engines stop at an altitude of 157 m. What is the maximum height reached by the rocket? How long after

    asked by cat on January 23, 2014
  37. Chemistry

    Which is a possible electrochemical cell, shown in correct notation? A. Cd(s) | Cd2+(aq) || Cu2+(aq) | Cu(s) B. Mg(aq) | Mg2+(aq) || Pb2+(aq) | Pb(aq) C. Ag(s) | Ag2+(aq) || Pb3+(aq), Pb2+(aq) | Pt(s) D. Ag2+(s) | Ag2+(aq) || Pt(s) | Pb3+(aq), Pb2+(aq) E.

    asked by Alex Fischer on May 21, 2012
  38. PHYSICS

    A boy is whirling around a stone tied at the end of a 0.55 m long string at constant angular speed of 5 revolutions per second in a plane perpendicular to the ground. The string breaks when it is making an angle of 53 degrees above the horizontal and the

    asked by Jadelyn on November 29, 2009
  39. English

    I left out two exercises for you to check. Thank you very much, Writeacher. By the way, do you say "talk about a topic of your choosing/or of your choice? 1) I ……………………… buy any butter, mum has just bought some. (Shall I include a colon

    asked by Matthew on April 16, 2012
  40. Math 6th Grade

    I'm doing this math test and I have a border line A on my grade I need to make sure I don't lower my grade to a B, so any help is appreciated. Thanks! 7. The probability of winning a game is 25%. How many times should you expect to win if you play 20

    asked by Anonymous on May 10, 2018
  41. Chemistry

    13. Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 48.7 g of sodium are added to water? 2Na + 2H2O = 2NaOH + H2 So far I have this much figured out: Mass to

    asked by Mitch n' Joey on December 12, 2017
  42. AED

    Discusses the central executive, sensory register, working memory, and long-term memory Reviews the relationship among the central executive, sensory register, working memory, and long-term memory Details how sensation and perception, attention, working

    asked by dawn on June 27, 2008
  43. Math

    You pay 3.3 cents per minute for long-distance phone calls on your phone. Your phone bill is $3.40. Write and solve an equation to find the number of minutes m of long-distance calls you made. A. ; 103 minutes B. ; 11 minutes C. ; 83 minutes D. ; 10

    asked by Amelia on April 23, 2014
  44. Geography

    I have to use the hints given to find out what place is being talked about- 31. "We had our picnic near the capital of this new nation, which used to be the eastern part of Czechoslovakia." ...Slovakia? 32. "The person collecting these samples writes that

    asked by mysterychicken on October 13, 2009
  45. statistic

    . For each of the following, assume that the two samples are selected from populations with equal means and calculate how much difference should be expected, on average, between the two sample means. a. Each sample has n _ 5 scores with s2 _ 38 for the

    asked by Sharon on November 11, 2012
  46. Social Studies

    A popular cell phone manufacturer begins selling a new phone with many unique features. Lots of people want to buy the new phone. The old phone cost $149. What is the most likely price of the new phone? $79 $129 $149 $199 Is it $199?

    asked by Anonymous on September 18, 2013
  47. Mathematics

    A rare bacterial culture is being grown in a lab. As time passes, the cells multiply in a specific pattern.After 1 day, there is only 1 cell.After 2 days, there are 8 cells.After 3 days, there are 18 cells.After 4 days, there are 31 cells.How many cells

    asked by Lay on February 2, 2018
  48. Chemistry

    Hello, So I have recently done a lab with cobalt(II) nitrate and NaOCl (bleach) and our objective was to determine if colbalt or the bleach is part of the rate determining step. With the lab we have done trials by diluting the colbalt and leaving the

    asked by Sherlique on September 26, 2017
  49. Elements of Structures MIT 2.02

    In this problem The composite beam AB, of length L=2m, is free at A (x=0) and fixed at B (x=L) and is composed of a round cylindrical core of constant radius R0=1cm bonded inside a sleeve of thickness R0 (outer radius 2R0=2cm). The beam is loaded, as

    asked by 11YearsOldMITStudent on July 27, 2013
  50. rpi

    For the stepladder shown in Fig. 12-51, sides AC and CE are each 3.34 m long and hinged at C. Bar BD is a tie-rod 0.662 m long, halfway up. A man weighing 746 N climbs 2.51 m along the ladder. Assuming that the floor is frictionless and neglecting the mass

    asked by Anonymous on November 15, 2010
  51. Language Arts

    1) What can you infer from this sentence near the start of "The Story Teller"? Most of the aunt's remarks seemed to begin with "Don't," and nearly all of the children's remarks began with "Why" The children have a lot of questions for their aunt. The aunt

    asked by Shalee ^~^ on September 30, 2015
  52. History

    Ok i had to do some research and answer some questions about MLK. I did alot of them but couldn't find the rest so can someone help me please. 1.How would this speech be different if it was written from a third person point of view? Does it change the

    asked by Tory on January 29, 2009
  53. English

    Writeacher, I urgently need you to revise the introductory part of Chapter 10 (Dr Jekyll and Mrs Hyde). Can you check tenses,please? 1) In Chapter ten Dr Jekyll comes to the realization of the primitive duality of man. He admits that man is not truly one

    asked by Matthew on March 18, 2012
  54. Science

    In order for a child to inherit a recessive genetic disease, like sickle cell anemia, healthy parents must both A. have the disease B. be homozygous for the mutated gene that causes the disease. C. be carries of the mutated gene that causes the disease D.

    asked by Anonymous on October 15, 2014
  55. Physics

    Student A is on a 9m Hugh bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would

    asked by Sandara on January 23, 2014
  56. math

    2 hours after a given drug has been administered there is only 75% of it left in the body. a. What percentage of it leaves the body every hour (find the hourly decay rate)? b. What is the continuous decay rate? c. How long until 50% has left the body? d.

    asked by Lindsey on November 21, 2011
  57. math help

    please explain your answer and how you got it.. Samantha had a board that was 6ft. 8in.long.she cut off a piece that was 2 ft.10in.long.how much board does she have left? A.4ft. 10in B.4ft. 2in C.3ft. 2in D.3ft.10in

    asked by mathelp124576 on January 8, 2014
  58. Physics

    Student A is on a 9m high bridge while Student B is on the ground. Student B throws an apple up to Student B with a velocity of 18m/s. How long does it take for the apple to reach student A's hand? if student A is unable to catch the apple, how long would

    asked by Sandara on January 23, 2014
  59. Economics

    you are hired as the consultant to a monopolistically competitive firm. The firm reports the following information about its price, marginal cost, and average total cost. Can the firm possibly be maximizing profit? If the firm is profit maximizing, is the

    asked by Sally on December 5, 2006
  60. chemistry

    Both aluminum and zinc are used in "air batteries", those that use oxygen from the air as an oxidizing agent. These reactions take place in one type or the other: 4Al(s) + 3O2(g) --> 2Al2O3(s) 2Zn(s) + O2(g) --> 2ZnO(s) a) Calculate DeltaG^o for these

    asked by Anonymous on May 1, 2010
  61. Calculus

    Let f be the function defined as follows. $ y = f(x) = {\color{red}5} x^2 -{\color{red}9} x +{\color{red}10} $ (a) Find the differential of f. dy = (b) Use your result from part (a) to find the approximate change in y if x changes from 2 to 1.97. (Round

    asked by Ant on June 13, 2013
  62. science( chem)

    Find the pH of a solution prepared by disolving 1.00g of glycine amide hydrochloride (BH+) (mwt=110.54g/mol) plus 1.00g of glycine amide (B)(mwt=74.08) in 0.10L PKa=8.04 I got pH= 8.21 Is that correct? This question actually has 4 extra parts but I wanted

    asked by christina on July 21, 2007
  63. Physical Science

    If one measurement is known much more precisely than the other, the fractional error is the ratio of the absolute value of the difference (|M1-M2|), and the more accurate value. What is the percentage error of student A's measurement (37.2 cm long if it is

    asked by Barbara on August 25, 2014
  64. physics!

    A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 18m/s. The cliff is 52m aboce the water's surface. How long does it take for the stone to fall to the water? With what speed does it strike the water? I got how

    asked by emily on December 9, 2008
  65. Help!!!! math

    An hiking group wanted to travel a long chapter of the Appalachian Trail for 4 days. They planned to hike 6 hours per day and wanted to complete a trail chapter that was 60 miles long. what rate of speed would they have to average to complete the trail

    asked by Seth on April 3, 2013
  66. physics multiple choice

    Far from any gravity, an astronaut accidentally releases a metal wrench inside a spaceship that is traveling at a constant velocity of 250 km/s away from earth in outer space. What will be the subsequent behavior of that wrench as observed by the

    asked by andrea on February 2, 2011
  67. physics multiple choice

    Far from any gravity, an astronaut accidentally releases a metal wrench inside a spaceship that is traveling at a constant velocity of 250 km/s away from earth in outer space. What will be the subsequent behavior of that wrench as observed by the

    asked by mely on February 2, 2011
  68. science -heredity

    there are about 100,000 genes in each cell. Why would it be important scientists to identify what every one of these genes does? I put Genes will describe a trait of a person, example, it will determine if a person will be small or tall; blue or brown eyes

    asked by sara on April 6, 2014
  69. anatiomy/help please

    Identify the blood types arising from each of the progenitor cell types: a)myeloid progenitor cells b)lymphoid progenitor cells

    asked by jack on November 10, 2012
  70. science

    What is mutation? 1.A mutation is a permanent change in the order of bases in the DNA. 2. A mutation is a permanent change in the way the cell carries out mitosis I think #1 Thanks

    asked by Jamie on February 8, 2018
  71. data excel

    Mark Jacobs, owner of Jacob's Mini-Mart currently operates two stores in Atlanta. His business has been very successful, and he is now opening two new stores. He will no longer be able to manage all stores himself, so he is hiring managers for three of the

    asked by jimmy on December 16, 2014
  72. Business

    14. When you first started your new business, you were so excited about the large volume of orders you had. One year later, you find that your orders are less than half of what they were in the beginning. What is the most probably cause of this decrease in

    asked by Jay on March 26, 2015
  73. Science

    How is cell division responsible for growth. Could someone please tell me how it is responsible for growth clearly, thanks:-)

    asked by Sara on May 4, 2010
  74. Math

    Suppose a small cannonball weighing 16 pounds is shot vertically upward with an initial velocity Vo = 300 ft/s . a) Construct the mathematical model. b) Suppose air resistance is ignored, determine the velocity of the cannonball at any time t. c) Using the

    asked by Jawad Haider on March 2, 2018
  75. physics

    A straight ladder is leaning against the wall of a house. The ladder has rails 4.50 m long, joined by rungs 4.800 m long. Its bottom end is on solid but sloping ground so that the top of the ladder is 3.400 m to the left of where it should be, and the

    asked by Jessi on March 30, 2009
  76. internationa business operations management

    As the production manager for an electronic circuit company you have encountered the following situation. Part 1 A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently

    asked by lisette on August 19, 2010
  77. Science again help ASAP

    Hi, I need some help. prntsc[remove]r.[remove]com/[remove]j6[remove]kl9e The table shows the speed of sound waves in different materials. Sound would travel most quickly through ______. wood****(?) water air outer space *Table shown in screenshot,

    asked by Anonymous on April 17, 2018
  78. Average Value - Calculus

    What is the average value of y for the part of the curve y = 4x − x^3 that is in the first quadrant?

    asked by KAITLIN on June 5, 2012
  79. science

    the ? is the part of an experiment that is not being tested and is being used for comparison.

    asked by Robert on August 11, 2009
  80. grammar

    What part of speech is the word anymore?

    asked by Anonymous on November 1, 2010
  81. biology

    In which part of the body are the crypts of Lieberkuhn?

    asked by matty on February 26, 2016
  82. Maths

    What is the TSA of fourth part of a lemon?

    asked by Rutva on March 16, 2017
  83. science

    what part of a plant does vanilla represent

    asked by mary on May 5, 2010
  84. Science

    Which organ is NOT part of the Digestive System??

    asked by KillerGirl143 on November 6, 2016
  85. Math

    Part C: How can you solve the equation 8x = 2x + 2 graphically?

    asked by Kayla on December 19, 2015
  86. fraction

    find t he fractional part of each number 2/3 of 9 and 1/6 of 12

    asked by jayjay on January 24, 2011
  87. science

    is there a such thing as a three part lquied supion

    asked by xavier on January 13, 2010
  88. Agriculture/Science

    Hi all, basically im stuck with a part of my assignment •

    asked by Miller on August 31, 2005
  89. biology

    how do you draw tryptophan and i need to know what goes around the pentagon part etc. thanks

    asked by Rebekah on December 5, 2009
  90. Grammar

    What is the part of speech of the word "bliss"?

    asked by Anonymous on March 19, 2014
  91. Algebra 2

    How do i put +/- in the y= part in a graphing calculator?

    asked by Anonymous on January 25, 2010
  92. social studies

    part a which of the following conflicts does the dialogue reveal.

    asked by kayli on May 2, 2016
  93. I love math science

    Label all the part of speech in the sentence

    asked by Wendy on January 29, 2018
  94. SS

    What do the colonies call themselves in the last part of the document?

    asked by brooke on September 23, 2015
  95. social studies

    what religion was part of the Song Dynasty ?

    asked by Katie on November 18, 2012
  96. Math

    solve: 4u^2 + 3 = -7u The sqrt part is confusing me.

    asked by Hannah on July 4, 2010
  97. English

    What does it mean by "What is the supporting idea in this part of the speech?"

    asked by Nicole on December 16, 2013
  98. Algebra 2 to Reiny

    in the one you helped me with, where did this come from: Where did this part come from? - (sin^2Ø + cos^2Ø)

    asked by Ana on June 9, 2010
  99. MATH

    A nickel is what fractional part of a quarter?

    asked by JEVON on July 27, 2008
  100. math

    if 5/17 of a region was shaded wat part is not?

    asked by samantha on January 12, 2011