Questions Asked on
April 7, 2008

  1. Physics

    The crystalline lens of the human eye is a double convex lens made of material haveing an index of refraction of 1.44. Its focal length in air is about 8 mm which also varies. We shall assume that the radii of curvature of its two surfaces have the same

    asked by J
  2. chem

    write the net ionic equation for the unknown titration reaction in this experiment. KHC8H4O4(aq) + NaOH(aq)----> KNaC8H4O4 + H2O(l)

    asked by natash
  3. Chemistry

    Is the solvation of borax in water an exothermic or endothermic process? i am thinking the it is that right?

    asked by Riley
  4. pre calc

    Two forces of 50 and 70 N (newtons) act on an object. The angle between the forces is 40°. Find the magnitude of the resultant and the angle that it makes with the smaller force.

    asked by Julie
  5. Physics

    A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18 cm. (a)Another car is seen in this side mirror and is 13 m behind the mirror, if the car is 1.5 m tall, what is the height of its image? I can't figure

    asked by J
  6. physics

    A boy is blowing a whistle of frequency 536 Hz and walking toward a wall with a speed of 1.64 m/s. What frequency of the reflected sound will the boy hear if the speed of sound is 343 m/s?

    asked by Jon
  7. Dynamics

    A series of small packages are being moved by a thin conveyor belt that passes over a 300-mm radius idler pulley. The belt starts from rest at time t=0 and its speed increases at a constant rate of 150mm/s^2. Knowing that the coefficient of static friction

    asked by Hal
  8. math

    Susan has $25. She is going to spend $4 on a book, then $3 per day on lunch. a)Write an equation that represents the following question: "How many days can Susan buy lunch using this plan?" b) Solve your equation, and check your solution.

    asked by sam
  9. Science

    i have to do this packet about magnetism, but we havent even learned anything about it yet. I have got some of the answers but i cant figure out the rest. What do you need to make an electromagnet? What is an advantage of using an electromagnet? Name 3

    asked by Emily
  10. math

    Two cassettes and three cd's cost $175 while four cassettes and one cd cost $125. 1)Given that one cassette cost $x and one cd cost $y,write two equations in x and y to represent this information. 2)Calculate the cost of one cassette.

    asked by rufus
  11. chemistry

    A 0.25 mol/L solution of benzoic acid, KC7H5O2 and antiseptic also used as a food preservative, has a pH of 2.40. Calculate the Ka of benzoic acid at SATP My work: C6H5COOH --> C6H5COO^- + H^+ Ka = (C6H5COO-)(H+)/ C6H5COOH I know my next steps are to use

    asked by Dustin
  12. literature- poetry

    the line " I wandered lonely as a cloud" is an example of A. a metaphor B. a simile c. a couplet d. alliteration

    asked by tonya
  13. physics

    a sound wave of frequency 500 hz travels from air into water. the speed of sound in air is 330 m s-1 and in water 1490 m s-1. what is the wavelength of the wave in a)air; b)water

    asked by sake
  14. accounting

    If total assets decreased by $47,000 during a period of time and owner's equity increased by $24,000 during the same period, then the amount and direction (increase or decrease) of the period's change in total liabilities is ________. $23,000 increase

    asked by tomika
  15. physics

    1)A convex mirror of focal length 10 cm forms an upright and magnified image of a real object placed at a distance of 20 cm from the mirror. false 2)A concave mirror of focal length 10 cm forms an upright and diminished image of a real object placed at a

    asked by Jon
  16. chemistry

    Calculate the solubility of calcium sulfate 0.010 mol/L calcium nitrate at SATP

    asked by Ross
  17. physics

    Can you help me with the problem below? Any help is appreciated! A pair of narrow, parallel slits separated by 0.250 mm are illuminated by the green component from a mercury vapor lamp (ë = 546.1 nm). The interference pattern is observed on a screen 1.20

    asked by Anonymous
  18. physics

    a ship sends a snoar pulse of frequency 30kHz and duration 1.0 ms towards a submarine and receives a reflection of the pulse 3.2 s later. the speed of sound in water is 1500 ms-1. find the distance of the submarine from the wavelength of the pulse and the

    asked by sake
  19. chem lab

    when setting up their experiment, a student discovered that the solution in their flask turned bright pink upon adding 2 drops of the indicator, even before beginning the titration. what do you suspect was the mistake that the student made?

    asked by natash
  20. accounting

    The following adjusting journal entry was found on page 4 of the journal. Select the best explanation for the entry. Wages Expense 2,555 Wages Payable 2,555 ???????????????? Record the payment of wages Record wages to be paid this month Record wages paid

    asked by tomika
  21. chemistry

    Strychnine, C21H22N2O2(aq) is a weak base but a powerful poison. Calculate the pH of a 0.001 mol/L solution of strychnine. The Kb of strychnine is 1.0 x 10^-6 My work: I called Strychnine SN SN + HOH --> SNH+ + OH- Kb = (SNH+)(OH-)/(SN) (SNH+) = x (OH-) =x

    asked by Ross
  22. math

    Guy $1.00=US $0.01 and EC $1.00 =US $0.37 Calculate the value of: 1)Guy $60,000 n US $ 2)US $925 in EC $

    asked by rhonda
  23. chemistry

    If 1.00 mol of iodine and 0.50 mol of chlorine are initially placed into a 2.00 L reaction vessel at 25 degrees celsius, find the concentrations of all entities at equilibrium

    asked by Kelsy
  24. accounting

    Joe Brown invests $10,000 into his new business. How would the journal entry for this transaction be entered in the journal? Cash 10,000 Brown, Capital 10,000 Invested cash in business Cash 10,000 Brown, Capital 10,000 Invested cash in business Brown,

    asked by tomika
  25. chemistry

    Caclulate the Ka of nitrous acid if a 0.200 mol/L solution at equilibrium at SATP has a percent ionization of 5.8% ka=(H+)(NO2-)/(HNO2-) If 1.59% ionized then after ionization H+ = 0.2 x 0.058 =? NO2- = 0.2 X 0.058=? HNO2=0.2 x (1.0 - 0.058) If solution is

    asked by Dustin
  26. chemistry

    Please calculate the pH and [H+] of a 0.30 mol/L solution of butanoic acid,. The Ka of butanoic acid is 1.52 x 10^-5

    asked by Ross
  27. math

    the problem is 2cos^2x + sinx-1=0 the directions are to "use an identity to solve each equation on the interval [0,2pi). This is what i've done so far: 2cos^2x+sinx-1=0 2cos^2x-1+sinx=0 cos2x + sinx =0 1 - 2sin^2x + sinx = 0 -2sin^2x+sinx-1=0

    asked by alex
  28. Physics

    An electron strikes the back of a TV screen at 1/10 the speed of light. What is the speed of the electron? What is the momentum of the electron? What is the deBrogile wavelength of the electron?

    asked by Dana
  29. english-al gore

    need answer to these questions: 2. Why is the picture of Earth taken on Dec. 11, 1972 the most commonly published photograph in history? 4. Why did they choose the middle of the Pacific Ocean for these measurements? 5. What year did Al Gore go to Kyoto,

    asked by bill
  30. english

    is tonight a noun or verb?

    asked by Shelby
  31. math

    Factorise completely: 1)3g-3t+2mg-2mt 2)3x squared + 2x-8 3)3x squared-27

    asked by mark
  32. chemistry

    What mass in grams of potassium hydroxide is contained in 500 mL of solution that has a pH of 11.5? Your response: [OH] = 1.0 x 0^-14 / 11.5 This isn't correct. If the pH is 11.5, then the pOH = 14 - 11.5 = 2.5 = pOH and (OH^-) = 0.00316 M. It appears to

    asked by Dustin
  33. chemistry

    A student prepares a 0.20 mol/L aqueous solution of ascorbic acid and meausres its pH as 2.40. Based on theis evidence, what is the Ka of ascorbic acid? H+ = 0.00398 C- is the same (HC) = 0.2 = 0.00398 (0.00398)(0.00398) / 0.0199 =0.000796 Hi DrBob222 you

    asked by Dustin
  34. physics

    1)A convex lens is used to obtain an enlarged virtual image. false. 2)The lens of the eye has a fixed focal length. false.

    asked by Jon
  35. URGENT -- Chemistry

    When 0.500 g of an unknown compound was dissolved in 15.0 g benzene, the freezing point depression was determined to be 0320C. The molar mass of the unknown compound is ?? g/mol. (The freezing point depression constant for benzene is 5.12C kgmol. I really

    asked by Jessica
  36. Adv. Math

    Find the interest to the nearest cent Question #1 Amount: $5432 Annual Interest Rate: 6.2% Time: 3 years Question #2 $4500 at 5.5% for 4 1/2 years Question #3 $3680 at 6.75% for 2 1/4 years Question #4 5.5% for 1 3/4 years on $2543 I'm sorry for so many

    asked by Kenya
  37. 11th Grade US History

    Why was James A. Garfield assassinated? What was the motive of the assailant(Charles Guiteau) What was the effect of the assassination on the American public?

    asked by Britney
  38. chemistry

    Strychnine, C21H22N2O2(aq) is a weak base but a powerful poison. Calculate the pH of a 0.001 mol/L solution of strychnine. The Kb of strychnine is 1.0 x 10^-6 My work: I called Strychnine SN SN + HOH --> SNH+ + OH- Kb = (SNH+)(OH-)/(SN) (SNH+) = x (OH-) =x

    asked by Ross
  39. Physics/Dynamics

    A series of small packages are being moved by a thin conveyor belt that passes over a 300-mm radius idler pulley. The belt starts from rest at time t=0 and its speed increases at a constant rate of 150mm/s^2. Knowing that the coefficient of static friction

    asked by Kyle
  40. physics

    1)As a sound source moves away from a stationary observer, the number of waves will. A)increase B)decrease C)remain the same D)need to know the speed of the source (answer:decrease.) As the detector recedes from the source, the relative velocity is

    asked by Jon
  41. Accounting

    Please double check me. Indicate whether a debit or credit decreases the normal balance of each of the following accounts. Office Supplies- debit Repair Service Revenue- debit Interest Payable- debit Accounts Receivable- creditSalaries Expense- debit Owner

    asked by Kim
  42. physics

    How fast should a car move toward you for the car's horn to sound 2.88% higher in frequency than when the car is stationary? The speed of sound is 343 m/s. A)42.5 Hz B)54.5 Hz C)61.8 Hz D)65.4 Hz v=16 fs=583 vs=343 (16+0)/16 Im not even gonna post the rest

    asked by Jon
  43. Science

    Name and describe two ways in which magnetism is used in technology related to medicine? Im really not sure of the answer to this, but i do know that magnetism is the force of attraction or repulsion.

    asked by Jenna
  44. Physics

    1)As a sound source moves away from a stationary observer, the number of waves will. A)increase B)decrease C)remain the same D)need to know the speed of the source (answer:decrease.) As the detector recedes from the source, the relative velocity is

    asked by Jon
  45. physics

    1)A 5.0 cm real object is placed at a distance of 30.0 cm from a concave mirror of focal length 10.0 cm. Find the location of the image. (30)(10)/5.0 15 or (30)(5.0)/10 60 I don't know which one 2)What must be the minimum height of a plane mirror so that a

    asked by Jon
  46. Economics

    A tax imposed on a market with an inelastic demand and an elastic supply with cause: A)sellers to pay the majority of the tax B)buyers to pay the majority of the tax C)the tax burden to be equally devided between buyers and sellers D)the tax burden to be

    asked by G
  47. chemistry,again

    3 Fe2O3 + 1 CO → 2 Fe3O4 + 1 CO2 how many grams of Fe2O3 are needed to prepare 255 g of Fe3O4? a. 118 g b. 552 g c. 264 g d. 383 g

    asked by Sarah
  48. statistics

    Poor teacher n=6 m=6 SS=30 Avg teacher n=8 M=2 SS=33 Good teacher n=10 M=2 SS=42 N=42 G=72 Sigma squared= 393 *HOW DO I OBTAIN THE TOTALS FOR THE GOOD TEACHER, AVG TEACHER, AND POOR TEACHER. THEY ARE NOT GIVEN IN THE PROBLEM. alpha level=.05 I did a one

    asked by Genova
  49. Physics

    If the critical angle for light at an interface between certain substances is 54.2 degrees, what is the polarizing angle at this same interface? I am confused!

    asked by J
  50. chemistry

    Solid borax dissolves in water according to the equation: Na2B4O7 10H2O(s) 2Na+ (aq) + B4O5(OH)42–(aq) + 8H2O(l) The sign of Ssys will be A. positive B. negative because there are A. more B. less moles of products generated. i've tried solving this

    asked by david
  51. math

    Find the unit price (cost for 1 ounce), to determine which is the best buy on pasta sauce? (1 qt = 32 oz). a) 1 qt for $1.29 b) 45 oz for $1.59 c) 48 oz for $1.79

    asked by Lisaraye
  52. chem-> front page report

    wondering if this looks good or should I make the format some other way. Multistep Synthesis of 4-Bromo-2-Chloro-6-Iodoaniline name school Chem###sec## Multistep A,B March 13,2008 Multistep C March 20,2008 Multistep D March 27, 2008 Multistep E April 03,

    asked by ~christina~
  53. chem-acid base titrations

    If 20.0mL of .2019M HCI requires 39.63mL of a NaOH solution for complete neutralization, what is the concentration of the NaOH solution? how many significant figures are justified in the answer?

    asked by natash
  54. Vectors

    I am really lost and confused! Consider the lines r = (1,-1,1) + t(3,2,1) and r = (-2,-3,0) + u(1,2,3). a) Find their point of intersection. b) Find a vector equation for the line perpendicular to both of the given lines that passes through their point of

    asked by Alex
  55. chemistry

    why do some M&M dye's travel farther than others when placed in water?

    asked by Jordan
  56. Chemistry

    ? g of glucose C6H12O6 must be dissolved in 400 g of water to give a solution that is 0.258 m.

    asked by Riley
  57. Chemistry

    When 0.500 g of an unknown compound was dissolved in 15.0 g benzene, the freezing point depression was determined to be 0320C . The molar mass of the unknown compound is ? g/mol. (The freezing point depression constant for benzene is 512C kgmol .

    asked by Riley
  58. physics EM

    A 59.0 -turn, 4.10-cm-diameter coil with R = 0.530 {\Omega} surrounds a 1.70-cm-diameter solenoid. The solenoid is 21.0 cm long and has 170 turns. The 60 Hz current through the solenoid is I_sol = (.470A)*sin(2*pi*f*t). I guess f is the frequency. Find the

    asked by Spencer
  59. Literature

    What are some symbols in oedipus the king i have swollen foot, tierias, crossroads, and the shephard

    asked by Dr. Rose
  60. science

    an adult male's heart pumps about 2.8 million liters of blood a year. It his heart beats 70 times a minute, how much blood does his heart pump with each heart?

    asked by kimberly
  61. Geometry

    Hello, Can you please tell me I have the right answer? Thank You my answer: 12 ft. The radius of curvature is 10ft and the height of the segment is 2ft. What is the length of the chord?

    asked by Mandi
  62. english

    PLEASE SHOW ME THE PROPER PLACES TO PUT THE COMMAS IN THIS SENTENCE: Athens a city in Greece named after Athena the Greek goddess of war and wisdom

    asked by Sydney
  63. algebra 1

    I am working on cross products of proportions. one question is 5/7 = 3w/21 Can someone help?

    asked by BBnewgo
  64. nutrition

    I need to develop a plan for a health unit on "What makes us grow?" based on a class size of 15 children.Any ideas?

    asked by Ale
  65. chemistry

    When 18 g of ethylene glycol C2H6O2 is dissolved in 150 g of pure water, the freezing point of the solution is _C . (The freezing point depression constant for water is 1.86C kg) what i tried was 18/62 to find the moles. then i got .29/.150 to solve for

    asked by david
  66. chemistry

    What mass in grams of potassium hydroxide is contained in 500 mL of solution that has a pH of 11.5? I have a pOH of 2.5 to get [OH] I do 10^-2.5 to get 0.001581138 Then I divide this by 2 to find the mols in 500 mL Then, grams = mols x molar mass =

    asked by Dustin
  67. math

    Given that y varies inversely as x, use the values of x and y from the following to calculate the value of a. x 2 32 y 8 A

    asked by joe
  68. chemistry

    What is the coefficient of oxygen in the following equation for the reaction of potassium (K) with oxygen (O2) to form potassium oxide (K2O? __ K + ___ O2 -> ___ K2O is it 4, 3, 2, or 1?

    asked by Sarah
  69. physics

    1)Specular reflection obey the laws of of reflection while diffuse reflection does not? false. They both obey 2)A convex mirror forms a virtual, diminished, and upright image for all real objects regardless of the location of the object. true

    asked by Jon
  70. Chemistry

    A solution is made by mixing 25.0 mL of toluene C6H5CH3 d=0867gmL with 135.0 mL of benzene C6H6 d=0874gmL . Assuming that the volumes add upon mixing, the molarity (M) and molality (m) of the toluene are how would i start this problem?

    asked by Riley
  71. geometry

    Having to do with special segments in a circle, P is diameter, AC=3 BC=5 AD=2. FIND PD, FIND ED, FIND PB

    asked by jean
  72. chemistry

    Are these formulas correct? pH + pOH = 14 pH = -log[H+] pOH = -log[OH-] [OH-] = 10^-pOH pH = 10^-pH

    asked by Sarah
  73. chemistry

    (x)(x)/(.001-x) = Kb (x^2)/(0.001 - x) = 1.0 x 10^-6 So, in the form of ax^2 +bx + c = 0 this is x^2 + 0.001x + 1.0 x 10^-6?

    asked by Dustin
  74. geometry

    true or false:all parallelograms have opposite angles that are supplementary

    asked by kayley
  75. Economics

    A tax imposed on a maket with an inelastic demand and an elastic supply will cause: a)sellers to pay the majority of the tax b)buyers to pay the majority of the tax c)the tax burden to be w

    asked by G
  76. math/Geometry

    Having to do with special segments in a circle. P is diameter, BC=5 AD=2 Find PD, ED, PB.

    asked by Jean
  77. math

    Solve the pair of simultaneous equations x^2=4-y x=y+2

    asked by candy
  78. Maths (Logs)

    1.Write the following equation without logs log y = mx+ c This would be y = 10^(mx+c) right? 2. Explain why this fits the exponential model (in other words, it can be written in the form y = a x b^x where a and b are real numbers).

    asked by BP
  79. Economics

    why with international trade, the domestic economy's consumption possibilities curve can be greater than the domestic economy's production pssibilities curve.

    asked by Josh
  80. math

    given that R= 2p(squared) divided by Q-3 1)Calculate the value of R when P=6 and Q=12. 2)rearrange the formula to make Q the subject.

    asked by scott
  81. Algebra 2

    Can someone check my answers. Write the following equations in standard form. 1) x^2 - 2x + y^2 + 4y = 11 answer: (x-1)^2 + (y+2)^2 = 16 2) 4x^2 + 24x - y + 34 = 0 answer: y = 4(x-3)^2 + 2 3) The graph of which equation is a circle? A. 5x^2 + 10x = 9 +

    asked by Troy
  82. Chemistry

    How would you find the Kb of a weak base??

    asked by HELP!!!
  83. spanish

    I need to describe my spring break in Spanish day by day. I think she said present-tense, I copied this chart off the board. AR Yo e Nos amos ER Yo e Nos imos-emos Is that present? So my question is, in that tense, how would I say "I go"?

    asked by Zoe
  84. Biology

    What are the different types of microscopes? Does a normal light microscope allow you to see DNA?

    asked by Will
  85. Math

    Factorise: a)x squared - 5x b)x squared - 81

    asked by Jonathan
  86. english

    "Life begets life. Energy creates energy. It is by spending oneself that one becomes rich.” what does this quote mean??

    asked by martin
  87. Geometry

    Hello, Can someone please tell me if I have the correct answer? Thank You, My answer: 25 sq. ft. What is the area of a sector of a circle that has a diameter of 10in. If the length of the arc is 10in.?

    asked by Mandi
  88. chemistry

    If a mole can dig a mol of holes, how many holes can a mol of moles dig? a. 36 x 1023 b. 3.6 x 1047 c. 6 x 1024 d. 6 x 1046

    asked by Sarah
  89. Legal

    I posted this a minute ago but it didn't show up so if it shows up twice, sorry! I have read my book twice now and can't figure this one out. Can you please tell me where I can find this information? When one person has partial possession of a parcel of

    asked by Justie
  90. Essay

    Hi, I have to write a web article evaluation paper. The professor wants us to pick a casual article that has to do with child development and family studies. Then, he wants us to use scholarly sources to evaluate the article. I don't know what a casual

    asked by Bizzy
  91. Physics

    a 10kg table needs to be pushed across the floor (µ=3). u stand behind it and push it at an anjgle of 30 degrees down with a force of 60N. wats the acceleration of the table?

    asked by Colin
  92. math

    which allows you to convert pounds and tons to ounces?

    asked by robert
  93. Science - Chemistry

    Having some trouble elaborating on a answer/conclusion for my investigation report. Why is it, that if we add more 2M HCl to 1gram of carbonate(crushed shells), the reaction takes longer to stop? Below is the results table. Time results are written in

    asked by SilverTrend
  94. Math-help!!!

    Elly writes the following expression on the blackboard. (13+24)+0+7 Use three properties of addition to simplify the expression. Include the names of the properties you use. what properties of addition are there cause im not sure!!!!

    asked by Busy 6
  95. chemistry

    Calculate the pH of the following aqueous solutions: 1.00 mol/L sulfuric acid H+ = 1.00 M for the first ionization THe second one is guided by K2 K2 = (H+)(HSO4-)/(HSO4-) Plugging in K2 as follows: H+ = 1.00 + x SO4- = x HSO4= 1.00 - x Can someone please

    asked by Ross
  96. Critical Thinking

    Hello, Im new here and im having problems with my homework. I need to do these two things for different sources and i find it next to IMPOSSIBLE to find these... Identify and name any rhetorical devices used by the author. If none exist, explain how you

    asked by Bob
  97. math

    write as a single fraction the simplest form: 3/x + 4/x+1

    asked by sandra
  98. Social Studies

    1)What's Indiana's natural resources. 2)What's the most important way to make money in Indiana? Please give long answer with more info. or the website.

    asked by Anonymous
  99. chemistry

    How do you tell what dyes are more polar than others?

    asked by Jordan
  100. Computer Science

    In the program Turing, how would you move an box randomly around the screen. This is what I have so far: for row: 3..10 for column: 10..30 locate (row,column) put " ".. end for I think this creates a box. How would I move this box across the screen by only

    asked by Lena
  101. french

    When I want to say this monday, can i say ce lundi? or does it have to be le lundi?

    asked by janice
  102. I updated my intro paragraph, is it better?

    Salman Rushdie, the author of Midnight’s Children, and Arundhati Roy, the author of The God of Small Things, both employ similar writing styles in their respective novels. Midnight’s Children is a story about Saleem Sinai, the protagonist of the novel,

    asked by PaRpAt
  103. algebra

    a(squared)/(a-b)+ b(squared)/(b-a)

    asked by Ashley
  104. US History

    What precautions are now taken to protect the president? I know we have the secret service but is there anything else?

    asked by Britney
  105. physics(please help)

    a planet orbits a star with period T. As seen from that planet the star's diameter subtends an angle of theta radians. Show the density of the star is given by rou=24pi/G(T^2)theta^3 please help!!!

    asked by POD
  106. Businees(finance)

    Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is $1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she should, but over

    asked by Dena
  107. Algebra 1

    How do you do Polynomials

    asked by Shakira
  108. books

    I have read many, many books and was wondering does anybody have a suggestion of a book I may be interested in? I am an 8th grader with a college level lexile and prefer fictionish books.

    asked by BBnewgo
  109. Quadratic Functions

    I need help solving this equation: y=-2x^+3 And you do need to graph this equation so can someone please help me?

    asked by Megan
  110. Math

    How do you graph the equation y=kx?

    asked by Alexa
  111. accounting

    differentiate between various costing systems

    asked by Anonymous
  112. English

    Is it possible to form sentences with just nouns and verbs?

    asked by Shelby
  113. Chemistry

    Calculate the maximum concentrations of Pb+ that can exist in 3.0 x 10(-2)M Na2SO4 without forming a precipitate.

    asked by Natasha
  114. Vectors - Reiny

    Thank you for the help! "When I solved equations 2 and 3 I got u=0 and t=-1, giving me r = (-2,-3,0) in both r = ... equations." Ok I'll check that. I just have a would you get r = (-2,-3,0) when u = 0 and t = -1?

    asked by Alex
  115. bio

    1. You have characterized two distinct genetically inheritable traits. They are inherited together most of the time, but not always and sometimes their phenotypes disappear altogether, only to reemerge in later generations. Try to explain how this type of

    asked by jay
  116. french

    How do you say I am hungry in the morning? Is it, J'ai faim du matin.

    asked by janice
  117. science(chem)

    Ka/Kb for the acetanilide being told that on the basis of this it will tell me whether a nitrogen or oxygen are protonated... (molecule: 4-bromoacetanilide) Thanks

    asked by ~christina~
  118. Adv. Math

    Ok my last question for this Interest stuff Woo! Ok this is the question: What is the annual interest rate if $1600 is invested for 6 years and $456 in interest is earned?

    asked by Kenya
  119. Representing Human Traits

    I'm confused on when to use a two capital letters, two lowercase letters or one of each. This is for traits. We just started it in Biology. It has something to do with heterozygous and homozygous dominant and homozygous recessive and so on. For example Pp

    asked by Human Traits
  120. English

    Is the comma right in this sentence? If not, what other punctuation can I use? “Where Are You Going, Where Have You Been?” tells the story of a teenager named Connie who is stalked by an older man, Arnold Friend.

    asked by JM
  121. Psychology

    Hi, I have to do a research paper on the movie "Bobby" directed by Emilio Estevez. I have to choose one character and apply two theories to a character from the movie. The theories can be Psychoanalytic, Neo-analytic, Behaviorist, Cognitive, etc... I have

    asked by Marie
  122. English - Grammar

    Should there be a comma before "be alone" in this sentence? The bond between them was so strong that Rhoda knew she could not leave Rhea and be alone.

    asked by JM
  123. English

    Please help. How can I word this better? Rhea did not even question why they can not just all go together up to his room.

    asked by JM
  124. economics

    How do market failure play a part in which a publicly funded health care system performs better than a privately funded system?

    asked by Ge
  125. chemistry

    Which of the following is NOT true of colligative properties? Colligative properties are... A. dependent on the mass of solute present. B. responsible for lowering the vapor pressure of a solution versus the vapor pressure of the pure solvent. C.

    asked by david
  126. Biology

    I'm confused on when to use a two capital letters, two lowercase letters or one of each. This is for traits. We just started it in Biology. It has something to do with heterozygous and homozygous dominant and homozygous recessive and so on. For example Pp

    asked by Joe Smith Bob
  127. Biology

    a genetisict studying coat color in animals crosses a male bunnicula having the genotype CC with a female having genotype Ccand the little subscript letters ch. The geneticist then crosses a cc(small letters ch) male with a Cc(small letter c) female. make

    asked by Emily
  128. math

    Kevin and Zach are playing a number guessing game. Kevin says, "I am thinking of a number. If you double it and then subtract one, the result is 7." a) Write an equation that Zach could solve to find Kevin's number. b) Explain the steps Zach could use to

    asked by sam
  129. com 215

    how will you apply the knowledge you have learned about effective business communication and cultural diversity to your current job and college courses

    asked by sugrbare24
  130. calculus

    what is the median waiting time for f(x)=((1/8)e^(-x/8))? I said the answer was 5.55 is this correct? thank you!

    asked by tia
  131. algebra

    How do you know when an equation has infinitely many solutions? How do you know when an equation has no solution?

    asked by Will
  132. English

    Doing a crosswor puzzle dealing with plot, characters, setting, etc. The clue is "part of the plot the goes back in time" There are 9 letters needed, with the third and seventh letters being an "A".

    asked by Taya
  133. biology

    how are cells relevant in news today

    asked by xoliswa
  134. Physics

    How do you write 25um in scientific notation?

    asked by Dana
  135. Science

    An argumentative article for the Sunday Gleaner discouraging people from hunting endangered species.

    asked by Michelle
  136. algebra

    help with find the domain of the function f(x)=log(5x+1)

    asked by luly
  137. math

    the functions f and g are such that f(x)= 2x+5/x-4 and G(x)=2x-3 calculate the value of a)g(4) b)fg(2) c)g`1 (7)

    asked by cassie
  138. trig

    I have heard that trig CAN be super easy, that there are just, like, 10 rules you need to memorize then all the problems are easy. ... Does anyone know what these are? Thanks!

    asked by jennifer
  139. Math

    I question that 1+1=2. Prove to me that it does. For example I have one car and then buy another car. How many cars do I know have? For English 1+1 does equall two but in math it doesen't. My proof is as follows. I have one sheet of paper. I put another

    asked by Joe Smith Bob
  140. Physics

    A person must move two heavy packages over a surface level so they place a 20kg package over a 30kg package and decide to move them together. The coefficient of kinetic friction between the lower package and the ground is 0.3. The person exerts a force of

    asked by Alex
  141. Legal

    Can you direct me where I can find this information? I can't figure it out... Thank you! Who owns forest trees when the land on which they are growing is so0ld? The new owner, the old owner, the public, the courts? I believe it's the New owner but can't

    asked by Justie
  142. accounting

    I have a project due on the Colo Company can anyone help figure out the worksheet

    asked by dan
  143. Math - FredR

    I asked about radians yesterday,you told me that a circle has 360 degrees or 2 pi radians, so: radians = 2.7*pi/180 Would the answer be 0.047

    asked by sue
  144. math

    I need to find the difference of this interger question by adding the opposite. Not sure what that means (+10)-(+6)

    asked by S.D.
  145. algebra

    (x+1)/(x+3)(x-3) + 4(x-3)/(x-3)(x+3) + (x-1)(x-3)/ (3-x)(x+3) please explain how you get it

    asked by Ashley
  146. social studies

    in slavery a person who is running away is a

    asked by quinten
  147. AED 201

    I need info. on the daily activities of a typical day for an educator (at the elementary or secondary level). The list and discussion of three time management tips should be attached as separate documents. I am going to be an elementary teacher.Please help

    asked by Dawn
  148. English

    Is the punctuation right in this sentence? (the semicolon doesn't seem right) In another of Oates’s stories; “Heat“, the main characters were also deprived of the future because of their curiosity and loneliness

    asked by JM
  149. physics EM please

    please look at my earlier question below thank you

    asked by Spencer
  150. maps

    what is a ordnance suevey map??

    asked by Elizabeth
  151. grammar 3rd grade

    Is this a run on? One group looks like a bear another is like a lion. I am confused.

    asked by Toni
  152. math

    Find each or difference.You may use fractions strips to help.

    asked by Laurel hill
  153. math

    wtite 3x^2 +8x-25 in the fomr a(x+h)^2+k, where a,h and k are real numbers

    asked by thomas
  154. calculus

    how would you find the median of a pdf picture it basically is a triangle with points (0,0) (6,.2) (10,0) do i need to find the slopes to find equations for the lines? thanks!

    asked by tia
  155. Math

    Mica reads about 44 pages in a hour. About how many pages will she read in two and three fourths of a hour.

    asked by Hunter
  156. pre-algerbra

    what is unit rate???

    asked by kk
  157. Debate

    I am new at debate and i need help on the new CX debate cause i have a 6 weeks grade and the teacher wont help me so i need help writing an affermative CX case on RESOLVED: the united states federal government should substantually increase alternative

    asked by Samantha
  158. math

    Simplify: x-3 divided by 3 minus x-2 divided by 2

    asked by Mary
  159. Science repost for Heather

    asked by Writeacher
  160. english

    if i say ''cocoa ran fast.'' is that still only using nouns and verbs?

    asked by Shelby
  161. Science repost for Krishna

    asked by Writeacher
  162. science

    how is the rivers and oceans so important to us besides it provides water and habitat?

    asked by Shelby