Questions Asked on
March 30, 2009

  1. Chemistry

    A galvanic cell is based on the following half-reactions at 25C: Ag+ + e- --> Ag H2O2 + 2H+ + 2e- ---> 2H2O (not H2O2) Predict whether E_cell is larger or smaller than E°_cell for the following case. [Ag+]= 1.0M, [H2O2]= 2.0 M, [H+]=2.0M

    asked by Andrew
  2. CHEM..URGENT!

    What is produced at each electrode in the electrolysis of NaBr(aq) and AgF(aq)?

    asked by H
  3. math

    Books Never Written?

    asked by Bella
  4. PreCalculus

    Problem: Identify the conic from the equation 13x^2-6(sq.rt.6)xy+7y^2-16=0 I have to choose from the following four answers: hyperbola (angle of rotation 45) hyperbla (angle of rotation 60) ellipse (angle of rotation 90) ellipse (angle of rotation 30) I

    asked by Joanie
  5. Pre-Calc

    Establish the identity. sinx + cosx/sinx - cosx = 1+2sinxcosx/2sin^2x-1

    asked by Brittany
  6. Spanish #2

    Can someone please check my work? Julián describes his family/. Complete the paragraph using possessive adjectives/. La hijas de mi tía son (mis) primas. Una se llama Noemí y (sus) hermanas se llaman Rosario y Débora. (Nuestras) madres son hermanas.

    asked by Larry
  7. chemistry

    For the reaction that occurs in the voltaic cell, Fe(s)|Fe2+(aq)||Cr3+(aq), Cr2+(aq)|Pt(s) determine E°cell. I don't understand how the Pt(s) would be used to solve this question. Please help!

    asked by Hannah
  8. Calculus

    This is the question - you are designing a rectangular poster to contain 256 in^2 of printing with a 3 " margin at the top & bottom and a 2 " margin at each side. What overall dinmensions will minimize the amount of paper used? Round to the nearest whole

    asked by Jane
  9. Religion

    What movie(s) could one show illustrating the Moral Development Theory by Lawrence Kohlberg?

    asked by Tara
  10. math

    A coffee shop sells a ceramic refill mug for $8.95. Each refill costs $1.50. Last month Rose spent $26.95 on a mug and refills. How many refills did she buy? THIS IS AN EQUATION

    asked by sara
  11. Spanish

    Can someone please check my work? Use possessive adjectives to write complete sentences about Miguel's family. Follow the model. modelo: tú/padres/ser/simpáticos: Tus padres son simpáticos. 1. yo/hermanos/ser/altos: Mis hermanos son altos. 2.

    asked by Larry
  12. social studies

    what was some of the point of view on slavery back in the 1850s?

    asked by queeneka
  13. Math

    A farmer grows only sunflowers and flax on his 240-acre farm. This year he wants to plant 80 more acres of sunflowers than that of flax. How many acres of each crop does the farmer need to plant?

    asked by Angie
  14. Chemistry

    Calculate the value of the solubility product (Ksp) for CdS given the following standard reduction potentials: CdS + 2e- --> Cd + S-2 E° = -1.21V Cd+2 + 2e- --> Cd E° = -0.402V --------------------------------------- CdS + Cd --> Cd + Cd+2 + S-2 E° =

    asked by Andrew
  15. Pre Cal.--Check my work?

    Solve the system of equations: x - y - z = 2; x + 2y - 2z = 3; 3x - 2y - 4z = 5? well, you have: 1- x-y-z=2 2- x+2y-2z=3 3- 3x-2y-4z=5 multiply both sides of the equation 1 by 2: x-y-z=2 ===> 2x-2y-2z=4 add this by equation 2: 2x-2y-2z=4 x+2y-2z=3 ==> 3x -

    asked by David
  16. calculus

    Could someone help me et up this problem? Two people start from the same point. one walks east at 3mi/h and the other walks northeast at 2mi/h. How fast is the distance between the poeple changing after 15 minutes? I think this is what I would do::: First

    asked by Anonymous
  17. Science

    what does the geologic time scale indicate about the change in life-forms over time?

    asked by lyne
  18. Algebra 2, Grade 10

    How do you solve 4x^8-61x^4+225????

    asked by Resse
  19. Spanish

    Please help me translate. Dear Juan, If you do not want your girlfriend to leave, you need to listen to me carefully. You were wrong. In a relationship, no matter the situation, the guy is always wrong. Be a man and tell her you made a mistake. I am sure

    asked by Robert
  20. Calculus

    Here's one more that I do not understand A company estimates that the cost ($) of producing x units of a certain product is given by: C= 800 + .04x + .0002x^2 Find the production level that minimizes the average cost per unit. Thank you so much

    asked by Jane
  21. Economics (attempted as suggested by economyst)

    Posted by eStone on Sunday, March 29, 2009 at 5:47pm. Suppose that a firm is currently employing 30 workers, the only variable input, at a wage rate of $60. The average product of labor is 30, the last worker added 12 units to total output, and total fixed

    asked by eStone
  22. Cal Word Problem

    Use a(t)= -9.8 meters per secondas the acceleration due to gravity.(Neglect air resistance) The Grand Canyon is 1800 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height f the rock as a function of the time t

    asked by Sarah
  23. Mass-mass

    How many grams of hydrogen gas are produced when 50.0 grams of zinc react with phosphoric acid, H3PO4 ? Equation:3 Zn +2 H3PO4--->3 H2+ Zn3(PO4)2

    asked by robb
  24. social studies

    lession 1 north and south grow apart whao I have to do is compare and contrast. I have some of it done but I can't fine what is the similar and different?With the way of lift in the 1850. point of view on tariffs in imported good. And point of view on the

    asked by queeneka
  25. Chemistry

    When a sample is above critical temperature and above critical pressure, it is a supercritical fluid. What happens when a sample is above critical temperature but below critical pressure? What phase is that? What happens when a sample is above critical

    asked by Sean
  26. Literature

    A few more questions on Antigone; Can someone please check my answers?: 1. When Ismene and Antigone disagree in the first scene, Ismene says "You are unwise but a loyal friend indeed to those who love you." Is it an accurate picture of Antigone? Why or why

    asked by mysterychicken
  27. 11th grade Chemistry

    [mole-mole] How many moles of NaOH are needed to react with 5.0 moles of sulfuric acid, H2SO4??? Equation: H2SO4 + 2 NaOH ---> Na2 SO4 +2 H2 O

    asked by Jenny
  28. Sra

    Are you going to be on for a lil bit more? Around 1-2 hours now from this post? I really need help with some french, but I have to do some other homework first. I'll check on your reply in a bit. Merci beacoupe.

    asked by Chopsticks
  29. us history

    what factor encouraged an american policy of neutrality during the 1930's?

    asked by Anonymous
  30. science

    what type of spectrum does the sun emit? where does nuclear fusion in the sun occur? if a star begins its evolution with 10 times the mass of the sun, but ends up with 2 times the mass of the sun, what type of object does it form?

    asked by bo
  31. Physics

    Find the energy necessary to put 5kg , initially at rest on Earth's surface, into geosynchronous orbit. Do I use the formula U=GMm/r G=6.67*10^-11 M=2.5*10^24 m=5 r=41000 Is this sort of right, any help would be greatly appreciated. Do i have to add the

    asked by Malcom
  32. Find the number of moles

    67.6g of h2O

    asked by Ashley
  33. Biology

    Compared with a smaller cell, a larger cell of the same shape has a. the same surface-to-volume ratio. b. a smaller cytoplasm-to-nucleus ratio. c. less surface area. d. a smaller average distance between its mitochondria and the nucleus. e. less surface

    asked by Cell size and shape
  34. social studies

    louisiana purchase

    asked by bob
  35. Algebra

    Explain how you would determine whether the graph of y = x^4 represents an exponential function. What is an exponential function? Thank you! :-)

    asked by Cassie
  36. Econ

    In which of the following circumstances would a buyer be indifferent about buying a good? a. The amount of consumer surplus the buyer would experience as a result of buying the good is zero. b. The price of the good is equal to the buyer's willingness to

    asked by Rob
  37. Chemistry

    A student carried out the synthesis of aspirin, starting with 3.22 g of salicylic acid. After carrying out the reaction, recrystallizing and then drying the product, the student obtained 3.65 g of aspirin. Calculate the percent yield. I'm pretty sure it's

    asked by John
  38. Math

    There 1170 students in a school. The ration of girls to boys is 23:22. The system below describes relatioonships between the number of girls and the number of boys. g+b=1170 g/b=23/22 a. what's the proportion for g when you solve it? b. how do you solve

    asked by Angie
  39. poem

    limeric There once was a boy named Timmy. His brothers were all named Jimmy. They all got confused. This name was misused. They all ganged up and beat Timmy. Is it right poem for limeric check my spelling too thanks.

    asked by jouan
  40. Physics

    Find the energy necessary to put 5kg , initially at rest on Earth's surface, into geosynchronous orbit. Do I use the formula U=GMm/r G=6.67*10^-11 M=2.5*10^24 m=5 r=41000 Is this sort of right, any help would be greatly appreciated.

    asked by James
  41. 5th grade english

    anagram

    asked by muthu
  42. math

    -9xy-xy+7y-6y= -10xy+y

    asked by ferrer
  43. Spanish

    I am trying tos ay In general there is nothing wrong with trying to look young. Understanding that you must look young with class understanding your age. There is no reason to hurt yourself just to feel young. You are only as young as you feel I think.

    asked by Toya
  44. Stoichiometry

    [Volume-Volume].How many liters of HF gas will be produced when 30.0 liters of hydrogen reacts ? Equation:h2+f2--->2HF i need help

    asked by Dom
  45. Science

    How would you test for Carbon Dioxide?

    asked by Bella
  46. Chemistry

    What does a high ENC indicate if we are comparing two compounds for example Csl and CaCl2? To caculate the ENC we simply take the number of valence electrons of the two compounds? Please help

    asked by Cindy
  47. alg 1

    factor 3x^2y-9xy^2

    asked by Coty
  48. Physics

    A force of 240.0 N causes an object to accelerate at 3.2 m/s^2. What is the mass of the object? 0.013 kg 75 kg 240 kg 786 kg

    asked by Tiara
  49. Electromagnetism

    **define any of the following** 1.magnet 2.poles 3.magnetic force 4.electromagnetism 5.solenoid 6.electromagnet 7.electric motor 8.electromagnetic induction 9.generator 10.transformer

    asked by **8th Grade**
  50. calculus

    I need help with this problem. I think I figured out how to set it up but I keep getting stuck in the middle. A boat is pulled into a dock by a rope attatched to the bow of the boat and passing through a pulley on the dock that is 1m higher than the bow of

    asked by Anonymous
  51. 8th Grade Algebra

    You know how to solve quadratic equations using algebra, graphs and the quadratic formula. Sometimes one method of solving is more convenient than another method. Describe how you would solve each equation. Give reasons for you answers. A) 16x^2 = 1600 B)

    asked by Joy
  52. Chem

    what are the four quantum numbers of the last electron of As this is what i have n=4 l=1 ms= 1/2 i don't know how to calculate ml. I know it's either: -1,0,1

    asked by Laura
  53. 12th grade chemistry

    Calculate the number of grams in the following :[149.096 g/mole] 8.55 moles of (NH4)3PO4 IT WOULD BE NICE IF I CAN GET STEP BY STEPS TO GET ANSWER !!!

    asked by Janice
  54. Biology

    Suppose that during meiosis I, the paternal chromosomes always went to one pole and the maternal chromosomes always went to the other pole. How would this affect the genetic variability of the offspring? Would children tend to look more like the parents?

    asked by Patricia
  55. CHemistry

    Research the role of chemistry within a specific industry. Identify chemical processes upon which the industry relies. Explore environmental impacts of the industry that are related either to the chemicals it uses or produces. Procedure Choose one of the

    asked by Tom
  56. Business Cover Letter

    Write a business letter of two to three paragraphs based on the scenario described here. Write an application letter in answer to the ad below. You may make up details but do not copy directly from sample letters in the study unit or any other source. Your

    asked by Anonymous
  57. Socials Studies Project

    Okay, I have to do a project on First Nations. The group I'm researching are the Northwest Coast People. It must include: Lifestyle (clothes, food and its preparation, types of housing, transportation, agriculture, nomadic, hunters, fisherman?) Customs and

    asked by Larry
  58. Julius Caesar

    What is Cinna's connection to Brutus in the play? I understand his role in the story, I just don't get how he connects to Brutus. Thank you for explaining this.

    asked by Michael
  59. Accounting Ethics: Keeping it Clean.

    What did Arthur Andersen contribute to the Enron disaster? I have read about this and I am having trouble understanding it.

    asked by A.W.
  60. us

    hi i have to write a paper stating that malcolm x was a better leader than martin luther king jr. I need a lot of help

    asked by ben
  61. Math

    I am having problems understanding how to solve problems like the following: a2 + b2 = c2 Please help me where I can understand solving problems such as the one above.

    asked by Jasmine
  62. science someone help me pleaz!!!!!!!!

    if a white dwarf can exist only if its mass is less than 1.4 times the sun's mass, how can a star having 5 times the sun's mass end as a white dwarf? & what can astronomers learn about a star from its spectral lines?

    asked by mike
  63. Science

    how did geologists determine the divisions of the geologic time scale?

    asked by lyne
  64. Chemistry

    A 67gr mass of solid iron is heated by a flame until the temp of the iron equals the temp of the flame. The solid iron is then dropped into 250gr of liquid water at 26 degrees C. After 5 mins, the iron and the water are both at 47 degrees C. Specific heat:

    asked by Lacey
  65. 8th Grade Algebra

    1) A firefighter aims a hose at a window 25 ft. above the ground. The equation h = -0.01d^2 + 1.06d + 5 models the path of the water, when h equals height in feet. Estimate, to the nearest foot, the horizontal distance d in feet btween the firefighter and

    asked by Nancy
  66. Math

    For this system, is the ordered pair a solution of both equations?How do you know? (5,1) y=-x+4 y=x-6

    asked by Angie
  67. english

    please help me tell which of the following would be better as a thesis statement for a rescreach paper " Poverty". addtional suggestion will be appreciated. thank you!!! - Poverty is affecting thousands of Americans everyday, it isn't sparing anyone of a

    asked by Anonymous
  68. English

    I am currently reading Jack London's short story "To Build a Fire." On my study guide, I was asked "What is the one important element beside matches that the man needs to build a fire?" I would say oxygen, but I don't think this is it, because the book

    asked by Emmaline
  69. Chemistry

    Do a cation of Mg^+2 and an anion of CO3^-2 become Mg(CO)3 or magnesium carbonite? What about (NH4)2 SO4. What cation and anion does that become? I'm not seeing why SO would get 4 if it already has that to begin with. Thank you!

    asked by Emmaline
  70. Dr.Bob22

    Can you please verify the anwer I gave robb under his chemistry post called "mass-mass". I probably did something wrong.

    asked by Chopsticks
  71. Physics

    The escape speed from a planet of mass 2.5×10^24 is 7.0 km/s.What is the planet's radius? Iam using the formula v=sqr(2GM/r) v=7 G=6.67*10^-11 M=2.5*10^24 r=? I get 6.8*10^12 Where did I go wrong?

    asked by James
  72. art survey

    describle the values of studing the visual and performing arts.

    asked by tonya
  73. statistics

    Listed below are the number of homeruns for the National League leader over the last 20 years, through 2006. Assuming that number of homeruns is normally distributed, if this is sample data collected from a population of all past and future homerun

    asked by delanour
  74. vocabulary

    Whats an word for everyday language? not english. a vocab term

    asked by Alan
  75. Calculus

    There was a typo in last question A company estimates that the cost ($) of producing x units of a certain product is given by: C= 800 + .04x + .002x^2 Find the production level that minimizes the average cost per unit.

    asked by Jane
  76. science

    does the doppler shift provide complete information about the motion of a star? pleazzz help

    asked by mike
  77. chemistry

    Describe what happens to the shape and volume of a solid, a liquid, and a gas when you place each into separate, closed containers?

    asked by chrissy
  78. science

    if a white dwarf can exist only if its mass is less than 1.4 times the sun's mass, how can a star having 5 times the sun's mass end as a white dwarf? & what can astronomers learn about a star from its spectral lines?

    asked by mike
  79. spelling

    Fill in the blanks with nouns: adm_r_l , sq_ _rr_l , _l_v_t_r

    asked by Anya
  80. 6th Grade Math

    Carmen received some money for her birthday on Friday. That night, she took her friend out to dinner. She spent half of her check for dinner. Then she tipped the waiter $6. The next evening she went to dinner alone, she spent half of the money she had

    asked by Brandi
  81. english

    i need help with making an analogy! i just don't know how to do one like is seed is to water as plant is to flower one ? but i need a different one then that one help please!!!!!!!

    asked by Yvette
  82. Speech/english

    ok my topic is If you could do anything without getting in trouble what would it be. we have to write an introduction first then thesis for my introduction i keep confusing that with the body i think i'm a little confused with what that should be about but

    asked by jerson
  83. Help with Translation

    Please help me translate this short letter. Dear Juan, If you do not want your girlfriend to leave, you need to listen to me carefully. You were wrong. In a relationship, no matter the situation, the guy is always wrong. Be a man and tell her you made a

    asked by Robert
  84. Physics

    In order to handle a hot pizza of mass 1.0 kg, a cook slides a light (i.e., of negligible mass) but stiff spatula of length 2.0 m from the right hand to the center of the pizza, which he then carries horizontally with both hands. His right hand is at one

    asked by Mary
  85. math

    how do u find unit rates and how would u round it to the nearest hundreth is it is necessary???

    asked by ashley
  86. 7th grade

    Thanks for the websites still a little confused on what animals would be considered a renewable resource?

    asked by Brooke
  87. History

    This is what I have so far but I need to add more any ideas would be great. Thanks. (How does overpopulation cause epidemics) THe more people that one comes in contact with each day, the more chances there are to pass on or receive a contagious disease.

    asked by Kara
  88. Econ

    A result of welfare economics is that the equilibrium price of a product is considered to be the best price because it a. maximizes total revenue for firms and maximizes the quantity supplied of the product. b. maximizes the combined welfare of buyers and

    asked by Rob
  89. math

    if the rate for radioactive decay for a substance is r=-.0063 and time is being measured in days how do you find the half-life of the substance to the nearest hour?

    asked by mike
  90. Solving inequalities

    I have to solve the following inequalities: x^2 + y^2 is less than or equal to 49 y is less than or equal to 3-x^2 I know that these are the equations of a circle and a parable. There should be 3 solutions. However, I am not sure how to solve these

    asked by Joanie
  91. 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
  92. math

    how would you prove that (cos^2x-sin^2x)(1-cos^2xsin^2x)= (cos^6-sin^6)?

    asked by kim
  93. Chemistry

    Explain in detail, which of the following pairs would have a higher melting point NH3 or P4

    asked by Sara
  94. science

    if a white dwarf can exist only if its mass is less than 1.4 times the sun's mass, how can a star having 5 times the sun's mass end as a white dwarf? & what can astronomers learn about a star from its spectral lines?

    asked by mike
  95. madern tegnology

    find out how modern tegnology has proved new means by wich people may save money. P.S i really don't understand and this is part of a project that is due tomorrow ANd i really need the answer before 9:30 tonight... thank u

    asked by wow146
  96. History

    How would overpopulation create epademics?

    asked by Kara
  97. Algebra

    Describe how an exponential function changes as the base increases. What is an "exponential function" and how would I find the answer? Thank you! :-)

    asked by Cassie
  98. Reading

    Secret Pal Surprises Characters and Setting? It is for my book report. Please tell me the characters (behavioral description) and where's the setting.

    asked by Erin
  99. Algebra

    Explain how population and money earning interest can both be represented by the formula A = 1000(1.08)^t. I have no idea how to solve this problem or how to start! Thank you! :-)

    asked by Cassie
  100. math

    There is a total of 37feet of lumber. You may use as much of this as you need. Your class has raised $121.00 to buy sand. A bag of sand costs $ 1.50. One bag will cover an area of one square foot. What is the largest sand-filled area you can make for the

    asked by Vidya
  101. 4th grade

    how does the cycle of day and night of our earth work?

    asked by breanna
  102. Literature

    I had a couple of questions about Antigone. 1. Teiresias says to Creon that "A good man yields when he knows his course is wrong and repairs the evil." How does this apply to Creon? I think Creon does this in the end but I need a more detailed answer; I

    asked by mysterychicken
  103. 5th grade math problem

    There is a total of 37feet of lumber? You may use as much of this as you need. Your class has raised $121.00 to buy the sand. A bag of sand costs $1.50. One bag will cover an area of one square foot. What is the largest sand-filled area you can make for

    asked by Vidya
  104. Math Challenge

    Please help, even if you only know 1 answer. 1. The length of each side of rectangle R is an integer, and the area of R is 2009. What is the largest possible perimeter of R? 2. If i place all three operational symbols +, -, x, in all possible way into the

    asked by annon
  105. math/equations

    1 -7=7d-8 2 24+h/4 =10 3 k/5 -13=4 4 -17+q/8=13 CAN ANYONE HELP!

    asked by sara
  106. 7th grade

    Thanks so much for all of your help Ms.Sue.

    asked by Brooke
  107. science

    why do carbonated drink errode the iron nail? thank you.

    asked by al
  108. math

    if a number is evenly divisible by 6, it is also evenly divisible by which other numbers?

    asked by laura
  109. Algebra

    I need to simplify this. (2^-1 . 7^-4)^-2 I thought that 2 was suppose to be multiplied with the -1, but that doesn't seem to make sense so I am confused. I know that PEDMAS needs to be used, just don't know how to apply it. Any help is appreciated!

    asked by Alicia
  110. 3rd grade

    in the book " how to be cool in the third grade. Do you think Robbie was cool and why

    asked by carmen
  111. Science!!

    Hi!! Which sentence looks better? (Should the commas be there?): 1. Extra food that your body doesn’t need or can’t digest travels into your large intestine & is turned into waste & eliminated from your body. 2. Extra food, that your body doesn’t

    asked by ~{Happy Face}~
  112. Math

    Factor (m + 4) (a – 5) + (m + 4) (a + 3) I cut it down to 2 possibilities. (m + 4) (2a – 2) (m + 4) (a2 – 2) Think it's this one

    asked by Laurie
  113. Math

    20 cm equals how many mm?

    asked by Barbara
  114. Electronic Engineering

    What are the advantages and disadvantages of using a cause register or vectored interrupts from a hardware point of view.

    asked by Rachel
  115. biology

    what is the stages of mitosis?

    asked by megan
  116. banking

    how would you receave interest on money if you keep it in a bank??????????

    asked by wow146
  117. science

    what is gu?

    asked by loen
  118. Algebra

    Please simplify. 5x^-2 - 3y -1/ OVER x^-1 + y^-1

    asked by Rachale
  119. Improving Your Writing

    Ten years ago, I started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted me to office manager. I manage two employees: Jack Snyder and Ruth Disselkoen. My office provides secretarial support

    asked by Vickie White
  120. sci 230

    What is a Theory? and Fake Science ?

    asked by meshelle
  121. 2nd grade

    what is an 8th of an inch?

    asked by Dylan
  122. math

    -8Xa squared b _________________________ -5Xa fifth power b

    asked by ferrer
  123. math

    a fifth power b ____________________all in ()to -3 a seventh power b -2

    asked by ferrer
  124. math

    3a2-9ab+4b2-7ab=

    asked by ferrer
  125. Math/Algebra

    Does anyone know how to graph quadratic functions (with parabolas). Could someone please help me!!Could you help me with these two problems don't forget to make a chart for x, the equation, the y, and the coordinates. 1. Y=2x^2 2. Y=-5x^2

    asked by Smores
  126. math{need HELP}

    what is 5 pecent out of 5200?

    asked by ???knowme???
  127. Meaning

    What does a quarantine area mean?

    asked by Justin
  128. science

    how do you find the wet bulb depression if they don't give any other info.

    asked by kyle
  129. math

    when question ask subtract (5y+8y+2) from (7y+9y-8) which expression comes first

    asked by ferrer
  130. algebra

    I have tried to work these problem and seem to do it wrong.I need help. 3/4(5x-1/2)-5/3

    asked by Elaine
  131. math

    what is 4% of $300.00

    asked by popcorn lover
  132. English

    What is a better of way of saying : for that reason in a more academic tone.

    asked by Lou
  133. Language

    we watched the eclipse from are backyard

    asked by Mikah
  134. 7th grade

    Does anyone know if Aloe would be considered a renewable resource for aruba. Still having a hard time finding anymore ecspecially animals.

    asked by Brooke
  135. Calculus 1

    Evaluate and compare Change in Y and Change in dy. Y = 1-2X^2

    asked by Sarah
  136. Challenge Problems - Math

    Please help, even if you only know 1 answer. 1. The length of each side of rectangle R is an integer, and the area of R is 2009. What is the largest possible perimeter of R? 2. If i place all three operational symbols +, -, X in all possible way into the

    asked by D
  137. math-10th grade( quadractics)

    the centre point of a circle is 5,3. the top most point of the circle is the vertex. the radius of the circle is 5 and one of the zeroes is 9. figure out the vertex. tehn figure out the equation and convert it in standard form? p.s-plz exaplain step to

    asked by Redspider
  138. physics: relativity

    I think I can rearrange the Lorentz contraction equation, solving for v using: v=sqrt[1-(L/Lo)^2] x c^2 Would someone check my thinking please? Thanks

    asked by charlie
  139. math

    how do i solve the 2 step equations 45-m/30=165

    asked by sara