Questions Asked on
October 30, 2010

  1. Algebra 1

    find the domain of the function: g(x)=2/5-9x

    asked by Barbara
  2. math

    60m^3n^12 over 15mn can u put this in simplist form?

    asked by kayla
  3. English

    Can someone check my answers for me. We're learning about commas...did I put them in the right places. 1. Pottery provides important archaeological artifacts for it is abundant, identifiable, and well preserved. 2. Yes, I do think that I must stop

    asked by Jessica
  4. math

    like i only got the first one when 16/16=1 that is 2^0 that is a power of two can you help me with the others?

    asked by kayla
  5. math

    like i only got the first one when 16/16=1 that is 2^0 that is a power of two can you help me with the rest?

    asked by kayla
  6. math

    factor down (4^3)^2 ____ * _____ ______ _______ ______*______ _____ ____ when is it not possible to work an exponent multipication? In the space below give an example and work it out to prove what you say does not work

    asked by kayla
  7. ethics

    what measurements sociologists utilize to calculate prejudice?

    asked by Anonymous
  8. English---meaning??

    "Submit a myth, or story, whose origins stem from your specific culture." what does specific culture mean??? For that requirement, what do I have to do???

    asked by Christine
  9. math

    calculste the variance of this set of numbers 2, 2, o, 3, 1, 4, 1, 3, 0, 0, 1, 4 4, 0, 4, 3, 4, 2, 1, 0, and the standard devative

    asked by Dianne
  10. manaegerial economics

    iven a firm’s demand function, P = 24 - 0.5Q and the average cost function, AC = Q2 – 8Q + 36 + 3/Q, calculate the level of output Q which a) maximizes total revenue b) maximizes pr

    asked by amber
  11. math

    the function, p(d)=1+d/33, gives the pressure, in atmospheres (atm) at a depth in the sea (d is in feet). note that p(0)=1 atm, p(33)=2 and so on. find the pressure at 10 feet

    asked by kiki83
  12. com156

    How might you determine what is fact and what is opinion? Does the opinion of an expert in the field carry more weight than the opinion of someone that is not? Explain why or why not

    asked by Anonymous
  13. Science

    I need to describe what a standard operating procedure is and what procedures it may involve. Thankyou.

    asked by paul
  14. english

    Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

    asked by rene
  15. physics

    A 4111.0 kg truck is parked on a 14.6° slope. What is the friction force on the truck?

    asked by Jay
  16. science

    Using what you learned about science in your coursework thus far, discuss: 1. Why you think scientists probably want to leave what they do open to revision. 2. What are the hard-and-fast rules of science? Are there any? 3. With so few firm rules, how does

    asked by ca
  17. Physics acceleration

    Whats the equation?? I haven't done this is a while. Don't show me the answer i want to figure it out cus that's just how i roll thanks! A car accelerates uniformly from 10 m/s to 20 m/s in 4.2 seconds. What is the magnitude of its acceleration? Do i times

    asked by Aisumi
  18. Physics kinetic energy

    Okay the equation for kinetic energy is = 1/2mv^2 so how would i figure this out?? If a semi-truck decreases its speed from 10 m/s to 5 m/s, its new Kinetic Energy is: a)4 times its old Kinetic Energy b)2 times its old Kinetic Energy c)1/2 its old Kinetic

    asked by Aisumi
  19. english

    Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

    asked by rene
  20. physical

    I have no idea what does this have to do with physics but hope you can explain... A passenger on a bus moving east sees a man standing on a curb. From the passenger's perspective, the man appears to be... a)stand still. b) move west at a speed that is less

    asked by Aisumi
  21. Geometry

    Suppose PQR RST. Which congruency statement of the two triangles is not equivalent to the others

    asked by Dayja
  22. psychology

    common requirements for the development of liberation psychology and some possible obstacles to its inception

    asked by moona
  23. eng physics

    in a downhill race a skier slides down a 40 degree slope. starting from rest how far must he slide down the slope to reach a speed of 130 km/hr. ignore air friction and assume the co effiecnt of kinetic friction between skies and snow is .1

    asked by anthony
  24. physics

    in a tug of war a jeep of a mass 1400kg and a tractor of a mass of 2000kg pull on a horizontal rope in opposite directions. at one instant, the tractor pulls on the rope with a force of 1.50*10^4N while its wheels push horizontally against the groud with a

    asked by jack
  25. physics

    on a level road the stopping distance for an automobile is 35.0m for an initail speed of 90 km/hr what is the stopping distance of the same automobile on a simalr road with the slope 1:10

    asked by hilde
  26. Calculus

    I have trouble finding the second derivative, my answer is a little off from the answer key. f(x)=(log(base2)x)^5 f'(x)=[5(log(base2)x)^4]/xln2 f"(x)=[20(log(base2)x)³(xln2)-(ln2+(x/2))(5(log(base2)x)^4)]/[x²(ln2)²] for the f"(x), is g(x)=xln2? It is a

    asked by sh
  27. math

    the 6th term of Gp is 2000.find its first term if its commom ratio is 10.

    asked by hawkland
  28. math

    please can you help me solve the following equations and please can you show your method. thanks 1) 4x+3/5x-6 = x-1/x-6 2) 4x-5/1-6x = x+10/x-6 thanks once again

    asked by peter
  29. physics

    at time t=0 the driver starts to brae determine how long the bus takes to stop

    asked by amir
  30. bussiness management

    For this discussion use the Critical Thinking Process to analyze the problem-solving the individuals may apply in the case study, "Elective Surgery Department Faces Decreased Patient Satisfaction." Share your chosen role and your role's ideas for the

    asked by jessica
  31. Earth Science

    What causes the intensity and duration of solar radiation received at any place to vary throughout the year?

    asked by Anon
  32. chemistry

    describe how would you prepare exactly 500. ml of 1.0 M NaOH solution from a 3.0 stock NaOH solution . show all calculation

    asked by hadil
  33. Chem

    How do I go about solving this reaction? H2SO4 + NaCO3 = NaSO4 +CO2 + H2O If 150.0g of sulfuric acid is spilled, what is the minimum number of sodium carbonate that have to be added to complete the reaction?

    asked by Sheff
  34. physics

    what force is required to make an object of mass 500g accelerate at 4m/s2 (sqaured) ?

    asked by annia
  35. maths

    find the domain and range of the function f(x)=2/(1-4)^1/2

    asked by chukwudi
  36. Math

    An adult crocodile weighs up to 2200 lbs. If a young crocodile weighs 157 lbs, how many pounds might it be expected to gain in it's lifetime? How do you write a word sentence that describes the inequality situation?

    asked by Sally
  37. English

    1. Many animals are dying. 2. Many animals are dying out. (What is the difference between the two sentence? What is the meaning of 'out' in Sentence 2?)

    asked by rfvv
  38. English

    1. He gets up at six-thirty every morning. 2. He gets up at six thirty every morning. (Which one is right? Do we have to use a hyphen or not?)

    asked by rfvv
  39. English

    1. On Christmas, children usually get gifts from their parents. 2. At Christmas, children usually get gifts from their parents. (Which preposition do we have to use before 'Christmas'? Are both OK? Which one is generally used?)

    asked by rfvv
  40. English

    How do you pronounce 'width'? Do we delete 'the d sound'?

    asked by rfvv
  41. ALgebra

    the difference of two numbers is 5. three times the smaller number is two more than twice the larger number. find the numbers

    asked by mike
  42. chemistry

    what difficulty must be overcome when mixing water and margarine? why?

    asked by Anonymous
  43. HCA/220

    Hello, I am working on a powerpoint presentation and I am trying to find images that I can use that can relate to the anatomy. I am having hard time trying to find pictures that do not have a copy wright on them. Do you have any suggestions? Thanks

    asked by Nikol
  44. physics

    What is the wavelength of a proton traveling at a speed of 6.87 km/s

    asked by joshua
  45. Computer

    What is the work of mobile phones?

    asked by Meron
  46. Calculus

    Do points of inflection have to be defined in the original function?

    asked by Jess
  47. math

    i am a decimal with my last digit in the hundredths. rounded to the nearest tenth. I am 6.5. Rounded to the nearest whole number. I am 6. if the sum of my digits is 16. what number am i?

    asked by alice
  48. trigonometry

    2 cos^2=1 [0, 2pi)

    asked by tina
  49. Precalculus

    1.Find the third term of the expansion of the given expression. (a+b)^6 2.se the Binomial Theorem to expand and (where possible) simplify the expression. (c-d)^8

    asked by Mary
  50. Chemistry

    5. The products are the materials used in the reaction.- T? 28. Alloys are a. elements b. compounds c. mixtures A 30. An example of a colloid solution is a. salt water b. dirt mixed with water c. smog C 31. Gases dissolve better a. when pressure is

    asked by mysterychicken
  51. VOCAB

    IF I AM WRITING LETTERS TO GOD, BOY SCOUTS, US ARMY, MY LOCAL SWIMMING POOL. NOT MAILING OR EXPECTING RESPONSES, RATHER USING THE LETTERS TO TELL A STORY. IS IT CORRECT TO SAY I AM WRITING LETTERS TO VAEIOUS ENTITIES? IF NOT, WHAT WORD COULD BE USED?

    asked by PETE
  52. math

    find the constants a, b and c such that or all values of x, 3x^2 - 5x + 1 = a(x+b)^2 +c also whats the coordinate of the minimum point?? thanks for the help

    asked by Kane
  53. English

    For whoever has read the book "Midsummer Night's Dream" by Shakespeare, could you help me think of another name for the title for a child?

    asked by Rebecca
  54. math

    calculate the discriminant of 3x^2 - 4x + 2

    asked by jake
  55. math

    what is ment by the "discriminant"

    asked by Jim
  56. SCI/230

    i am taking SCI/230 from the Univ of Phoenix and I need to know what Mendel's six principles are and an example if each. We are using page 78 in Chapter 3

    asked by Lorine
  57. Accounting

    The rent payment made on June 17 was for June, July, August and September. Expense the amount associated with one month's rent.

    asked by Sam
  58. Physics - Spring balls

    A 275g ball is resting on top of the spring that is mounted on the floor. You exert a force of 325N on the ball and it compresses the spring 44.5cm. If you release the ball from the position, how high above the equilibrium position of the spring-ball

    asked by Farah
  59. fin 571

    (Interest-rate risk) Philadelphia Electric has many bonds trading on the New York Stock Exchange. Suppose PhilEl’s bonds have identical coupon rates of 9.125% but that one issue matures in 1 year, one in 7 years, and the third in 15 years. Assume that a

    asked by sam
  60. physics

    An object was dropped from the top a tall building. During the last two seconds of the fall in traveled 80m. A) Find the total time of the fall. Assume that the gravitational acceleration is a constant 10m/s and air resistance is negligible. B) Calculate

    asked by Tereza
  61. calc 2

    Find the derivative. f(x) = x2 · log7(x) Give your answer using the form below. xA(B + C logD(x))

    asked by Anonymous
  62. math

    find the constants a, b and c such that or all values of x, 3x^2 - 5x + 1 = a(x+b)^2 +c also whats the coordinate of the minimum point??

    asked by Jim
  63. science

    what is the mass of a falling rock if it hits the ground with a force of 147 newtons

    asked by Anonymous
  64. chemistry

    Please let me know if my equation is correct,taken from the following word problem. If you react Iron(111)oxide with carbon monoxide,you will produce liquid iron and carbon dioxide. Fe2O3 + CO --> Fe + CO2. If I'm correct..how do I balance this. Thanks for

    asked by Cliff
  65. chemistry

    How many moles of Cu are needed to react with 3.50 moles of AgNO3?

    asked by Randy
  66. Organic Chemistry

    what is wrong with the idea that the reaction of maleic acid with zinc and aqueous HCL would yield tetrahydrofuran?

    asked by Melody
  67. statistics

    A large bank believes that one-third of its checking customers have used at least one of the bank's other services during the past year. How large a sample is required to estimate the actual proportion within a range of plus and minus 0.04? Use the 98

    asked by yoli
  68. Calculus

    Find the area of the enclosed by the y-axis and the curves y=x^2 and y=(x^2+x+1)*e^(-x). ...I'm supposed to use tabular method to find the area. But I'm not sure where to start with this question. I drew the graph for y=x^2, but that's about it. Help!

    asked by Anonymous
  69. Math

    What is the percentage increase from 132 million to 153.1 million?

    asked by Tykrane
  70. psychology

    It is the proper role of a psychological research scientist to: question data. make safe predictions. keep research methods accessible only to those involved in the research. avoid making predictions.

    asked by karl
  71. psychology

    To gain acceptance, a hypothesis must be: suggested by a credible authority. kept secret until the research is completed. imaginative and appealing. backed by empirical evidence

    asked by karl
  72. physics

    A car rolls down a 13.0° slope for 50.0 m, accelerating at 2.90 m/s2. Leaving the cliff at 13.0° below the horizontal, with the velocity it acquired from rolling downhill, the car falls 26.0 m to the rocks below, bursting into flame upon impact. What

    asked by john
  73. Chemistry

    the mass in grams of 125 ion atoms

    asked by Debbie
  74. ALgebra

    the difference of two numbers is 7. the larger number is 9 less than 3 times the smaller. find the numbers

    asked by mike
  75. The Crucible Crossword Puzzle question

    The question is: Thomas Putnam was this about his situation in life. There are 6 letters and the first letter starts with a b and the second to last letter starts with an e. I'm not sure what it is though can you help? Thanks

    asked by Missy
  76. physics

    A force of 5.00 N to the left causes a 1.35 kg book to have a net acceleration of 0.76 m/s2 to the left. What is the frictional force acting on the book?

    asked by lisa
  77. History

    What are some similarities between Hammurabi's codes and the Tang Dynasty's 10 Abominations? Thank you!

    asked by Lilu
  78. chem--please help me!!

    when a 25.0 mL sample of an unknown acid was titrated with a 0.100 M NaOH solution. Determine Ka for the unknown acid. Volume NaOH = 12.5 mL; pH=3.80 please help me explain in details!!!

    asked by Sue
  79. math

    4x-5/1-6x = x+10/x-6 your help would be much appreciated

    asked by peter
  80. psychology

    One advantage of using tests in research, rather than laboratory observation, is the usefulness of: the presence of the researchers, which increases the reliability of the results. describing behavior, rather than explaining it. tests in clarifying the

    asked by karl
  81. Chemistry

    Need help with these--- 28. Alloys are a. elements b. compounds c. mixtures 38. Alpha rays are really a. electrons b. helium nuclei c. electromagnetic waves Thanks -MC

    asked by mysterychicken
  82. psychology

    Jeff says, "It seems like the more money people make, the more debt they assume," but a/an __________ study might make the case that a rise in income does not by itself cause an increase in debt. criterion validity case experimental correlational I chose

    asked by karl
  83. economics

    Teddy Bear, Inc., a rapidly growing manufacturer of high fashion children's shoes, plans to open a new production facility in Gastonia. Based on information provided by the accounting department, the company estimates fixed costs of $250,000 per year. Its

    asked by hiten
  84. Physics

    Number 10 aluminum wire (radius= 1.3 mm) is commonly used for electrical installations in homes. What is the voltage drop in 20 m of this wire if it carries a current of 10 Amps? The bulk resistivity of aluminum is 2.7*10^-8 Ohm*m A) 1.3 V B) 1.9 V C) 1.0

    asked by Jessica
  85. Physics

    Which way does the magnetic vector B point in the vicinity of the Earth's North Pole? A. Upward B Downward C. Horizontally D. THere is no magnetic field at the North Pole

    asked by Jessica
  86. psychology

    An experimenter wants to find out if drinking coffee makes people more alert. The amount of coffee a person drinks is the: hypothesis. dependent variable. independent variable. correlation coefficient.

    asked by cindy
  87. Physics

    The Earth's magnetic field above the Earth's equator is about 10^-4 north. If a proton is intially moving downward at 5*10^5 m/s, it will? A. curve east, making a circle with r= 50 m. B. curve west, making a circle with r=50 cm C. curve east, making a

    asked by Jessica
  88. Physics

    I have a 250- turn circular coil of wire, 0.10 m in diameter, perpendicular to a 0.050 T magnetic field as shown below. I flip the coil 180 degrees in 1/30 of a second. What is the average voltage created across the ends of the coil? A. -6.0 V B. -12 V C

    asked by Jessica
  89. 11th grade AP Chemistry

    Pretend you are a nuclear scientist and try to answer this bonus question. Uranium -235 (235U) is used as a fuel in nuclear power plants. However, natural uranium contains mostly U -238 (238U) and very little uranium -235. Therefore, it is necessary that

    asked by derek
  90. Physics

    What property of Maxwells equations results in electromagnetic waves? A. Moving charges create B B. There are no magnetic monopoles C. delta E/Delta t creates B and delta B/delta T creates E D. Charges create E and currents create B

    asked by Jessica
  91. math

    Solve each proportion. Where necessary, round to the nearest tenth. 4/3 = b/21 I know b=28 do I round to the nearest tenth or what?

    asked by Lilly
  92. Halloween

    It's saturday and halloweens tomorrow. But I was wondering is trick or treating sopost be today or tomorrow? I've heard peolple going today and many people say tomorrow. I know sunday is an school night and some people wiill be at church. I have no idea if

    asked by HELP
  93. Criminal Justice

    Write a 700 to 1000 word paper in which you explain comonents of the criminal justice system and the criminal justice process. In your paper, be sure to include the definition of crime, it's relationship to the law, and the government structure as it

    asked by Maria Suter
  94. bio

    what is nonfermentative bacteria?

    asked by Elawabeh
  95. 8th grade

    exponential growth is stopped when equals

    asked by Anonymous
  96. Math

    Find the horizontal asymptote, if any, of the graph of the given function. g(x) = 4x^5+9x^4+1/9x^5+3x^4-9x^2+3x+1

    asked by Mary
  97. Calculus

    verify that the function satisfies the three hypotheses of rolle's theoreom on the given interval then find all numbers c that satisfy the conclusion of rolle's theorem. 1) 5-12x+3x^2 [1,3]

    asked by Anonymous
  98. Chemistry

    42. Tell the function of the moderator and control rods in a nuclear reactor. I found this answer on google..is it correct? The function of the moderator is to slow down the neutrons produced by fission to greatly increase the probably that they will go on

    asked by mysterychicken
  99. MINIMIZATION PROBLEM (CALC)

    A wire 9 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total

    asked by Pierre
  100. MINIMIZATION PROBLEM (CALC)

    A wire 9 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total

    asked by Pierre
  101. Math

    Use algebra to determine the location of the vertical asymptotes and holes in the graph of the function. (Enter your answers from smallest to largest.) g(x)= 2x^2/x^4-x^2

    asked by Raymone
  102. Chemistry--help me, please

    how would you separate Fe3+ from Ba2+ in a mixture? Please explain and give an equation for reaction.

    asked by Rocio
  103. Chemistry

    A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr?

    asked by Pat
  104. Physics

    An object's moment of inertia is 1.8 kg\,m^2. Its angular velocity is increasing at the rate of 3.4 rad/s^2. What is the torque on the object?

    asked by mike
  105. axia crt/205

    can someone help me to identify the fallacies and rhetorical devices in this article? While the U.S. government's 2008 bailout of failing banks flies in the face of the nation's capitalist principles, it is a necessary evil. Without shoring up these

    asked by joe
  106. chemistry

    I'm kind of having difficulty with a question involving dimensional analysis. I'm confused how I would convert some units into others and what to divide. Here's the question. One 5lb Hershey's kiss is equivalent to how many little Hershey's Kisses? (1

    asked by Nick
  107. crt-205

    can someone help to indentify fallacies and rhetorical devices in this article? The government's 2008 banking bailout is a fraud perpetrated on the American people. The government has abandoned sound money practices in favor of allowing the Federal

    asked by joe
  108. Math

    What is the propability that a random sample of 30 days in august has a mean high tempature less then 78 degreese?

    asked by Sherrie
  109. algebra

    How do i solve 3x+(2x-5)= 13-2(x+2)

    asked by yesenia
  110. psychology

    Random assignment can be described as a research method: used to balance the independent and dependent variables. no longer used because of its unpredictability. increasing the likelihood that the experimental group and control group will be different.

    asked by cindy
  111. com 155

    Students are often confused about the use of the words good and well in their writing. Write a 150 to 300-word passage to Susan Anker, the author of the course’s textbook, in which you describe five details from her book that are good and five details

    asked by Anonymous
  112. US Hist

    How did the Seven Years' War lead to the American Revolutionary War?

    asked by Katelyn
  113. To debbie: business math

    You've posted at least 25 business math questions in the last couple of days, with no indication of your own efforts. In addition you ignored my request to respond to the requests we made to your early posts. As I told you yesterday, until you respond to

    asked by Ms. Sue
  114. financing

    what would be the simple interest on a $4,500. loan if the annual percentage rate were 6.5%?

    asked by lee
  115. Math

    solve for x:3x2+2x+6=10(correct to two decimal digits)

    asked by Tabisa
  116. Finance

    How much could I save in a year if I budgeted 1.4% of a $19,250. income?

    asked by lee
  117. Physics - Charge on sphere (check + help)

    Two 2.0g spheres are attached to each end of a silk thread 1.20m long. The spheres are given identical charges and the midpoint of the thread is then suspended from a point on the ceiling. The spheres come to rest in equilibrium, with their centers 15cm

    asked by Farah
  118. Chemistery

    200g of water (specific heat of 4.184 Jg-1'c-1) loses 2000 J of heat. Its starting temperature is 70'C. Calculate the temperature of the water.

    asked by May
  119. pronouns

    what are pronouns

    asked by Anonymous
  120. Inter

    19) The process of naming broad product-markets and then segmenting them in order to select target markets and develop suitable marketing mixes is called: A. Market research. B. Market development. C. Market penetration. D. Market segmentation.

    asked by Siamara
  121. AP Government(Research question so not really)

    I am supposed to make an annotated bibliography for all the research I have done for my history fair project. Thing is I don't know how to make an annotated bibliography and I have looked up examples and I am not sure if you can do it with 50 sources. I am

    asked by Pablo
  122. Earth Science

    What are the minimum and maximum durations of daylight at a latitude of 39 degrees north? Thanks.

    asked by Anon
  123. physics

    What must the water pressure be to supply water to the third flor of a buiking 35.0 ft up with a pressure of 40.0 lb/in(2) at that level? I have the answer,but I need to know how to get the answer. thanks

    asked by Eileen
  124. Business

    No one can predict a natural disaster or world crisis, when a hurricane, flood, or a pandemic strikes a country, who is most likely to respond first? Which economicsystem is the best solution to handling a crisis of epic proportion?

    asked by Rhonda
  125. math

    how do i solve this equestion i don't understan 2(x+1)-3x=3(3+2X) please give me details on how to solve it because i have 100 more to go and i don't understand a thing

    asked by brenda
  126. physics

    a lead bullet is placed in a pool of mercury. what fractional part of the volume of the bullet is submerged?

    asked by Ashleigh
  127. physics

    A package of medical supplies is released from a small airpllane flying a mercy mission over an isolated jungle settlement. The plane flies horizontally with a speed of 20 m/s and an altitude of 20 meters. How far from the release point will the package

    asked by Casey
  128. Algebra 1

    Nico drives from school to the store at 25 miles per hour. He drives back to the school (along the same route) at 35 miles per hour, and the returns to the store (via the same route) travelling at 40 miles per hour. Find the average rate for the three

    asked by JK
  129. algebra

    For 1983 through 1995, the amount of private donations D (in millions) allocated to education can be modeled by D= 1.78t^3-6.02t^2+ 752t+ 6701 where t is the number of years since 1983. In what year was 14.3 billion of private donations allocated to

    asked by Nick
  130. psychology

    Now imagine that you are conducting research on the length of time it takes customers to select items in a grocery store. Assume that your hypothesis is that people will spend more time deciding on more expensive items than on cheaper items. • What might

    asked by krystal
  131. Earth Science

    If the date was March 22 and one saw the noon sun at 35 degrees south above the horizon, what latitude is one at?

    asked by Casey
  132. 10th grade

    BC=3x+2 and CD= 5x-10. Solve for x.

    asked by jj
  133. Chemistery

    How much heat is contained in 4 liter of liquid methanol (CH2OH) when it is completely combusted (excess oxygen) to form carbon dioxide and water. the density of metanol is 0.7918 g/ml.

    asked by Lin
  134. Chemistry

    4al(s)+3o2(g)---->2o3(g) limiting reactant 7.4 mol Al or 6.5 mol O2

    asked by Lisa
  135. Chemistry

    When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 40L of water for your group. What volume of fuel should you bring? Assume each of the

    asked by Anonymous
  136. AP US Hist

    What are three reasons the Seven Years' War led to the American Revolution?

    asked by Alice
  137. Chemistry

    How many electrons in an atom can have each of the following quantum number or sublevel designations? 1. n = 4, l = 3

    asked by Chris
  138. Physics - Mechanics and Ocsillatory Motion

    The force shown in the figure acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x = 0.27 m. the figure can be found at: [[webassign dot net forwardslash walker forwardslash 07-16 dot gif]] (a) Find the speed of the object when

    asked by Sara
  139. math

    Need help solving this algebraic complex fraction please. a+3/b ------ b+3/a I know LCM= is ab but then i get stuck

    asked by Anonymous
  140. math

    What is the opposite of 10?

    asked by Suzanne
  141. algebra

    Company A charges $55 per day plus $0.35 per mile to rent a car. Company B charges $50 per day plus $0.40 per mile. Jack wants to rent a car for three days. How many miles should Jack be traveling so that Company A is less expensive than Company B?

    asked by franklin
  142. STATS

    Police records in the town of Saratoga show that 18 percent of the drivers stopped for speeding have invalid licenses. If 16 drivers are stopped for speeding (a) Find the probability that none will have an invalid license. (Round your answer to 4 decimal

    asked by Helen
  143. STATS

    The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 575 MPa with a standard deviation of 17 MPa. a) What is the probability that a randomly chosen sample of glass will break at less than 575 MPa?(Round your

    asked by Helen
  144. STATS

    The probability of a manufacturing defect in an aluminum beverage can is .00003. If 100,100 cans are produced, (a) Find the approximate probability of at least two defective cans. (Round your answer to 4 decimal places.) (b) Find the approximate

    asked by Helen
  145. STATS

    At an outpatient mental health clinic, appointment cancellations occur at a mean rate of 1.60 per day on a typical Wednesday. Let X be the number of cancellations on a particular Wednesday. a) What is the probability that no cancellations will occur on a

    asked by Helen
  146. STATS

    In a certain store, there is a .05 probability that the scanned price in the bar code scanner will not match the advertised price. The cashier scans 820 items. a) What is the expected number of mismatches and standard deviation? (Round your expected number

    asked by Helen
  147. Chemistry

    Calculate the amount of NaH2PO4 and Na2HPO4 needed to prepare 100 mL of a buffer with a pH = 8.25 so that the sum of concentrations of HPO4 and H2PO4 ions is 0.5 M. Where do I start? :/

    asked by Anonymous
  148. physics

    What is the radial acceleration of an object at a point 25 meters from the axis of rotation that has a radius and a period of .22 seconds?

    asked by Asim
  149. Chemistry

    Give your answer as an ordered set of numbers , , , ... Use the least possible integers for the coeffiients Consider the following unbalanced equation for the neutralization of acetic acid: HC2H3O2(aq)+Ba(OH)2(aq)=H2O(l)+ this has the werid sybols and I

    asked by Lisa
  150. algebra

    Write 48/56 in simplest form

    asked by Anonymous
  151. finance

    Home Builder Supply a retailer in the home improvement industry, currently operate seven retail outlets in GA and SC. Management is contemplating building an eighth retail store across town from its most successful retail outlet. The company already owns

    asked by michella
  152. computer class

    You have been hired as a consultant by your neighbor to help her with her computer. You notice that she has a screen full of icons which appear to be Word documents, Excel Spreadsheets and other graphic files. How would you help her organize her data i.e.

    asked by Anonymous
  153. AP Physics

    a 45 kg object slides down an uneven frictionless incline from rest without rotating. What is its speed after it travels 2.5 meters vertically

    asked by Asim
  154. algebra

    the symbol % represents percent or percentage true or false

    asked by S
  155. English

    For my english class we had to make a list of things that annoy us and we have to do a log entry that "select hits" and develop some clusters. Like i know cluster refers to groups, so things like traffic and red lights can be grouped together (driving),

    asked by Jake
  156. algebra

    percent means hundredth true or false?

    asked by S
  157. algebra

    The volume of a rectangular slab of concrete needs to exceed 72 cu. ft. If the length is 12 feet and the width is 8 feet, how thick does the concrete slab need to be?

    asked by franklin
  158. CHEM

    What is the abbreviated electron configurations of : a) MO 4+ b) As 3- c) S 2- D) NI 2+

    asked by MAX
  159. literacy

    Please, explain what does it mean: Write a paragraph from the book that has no voice? I know, that some books have stong voice, medium voice. Thank you.

    asked by Anonymous
  160. CHEM

    Arrange the following in order of increasing atomic radius : Co, Mo, S, Ge, Cs

    asked by MAX
  161. statistics

    A Math class has 5 students. Their marks on the first quiz was as follows: 1 3 3 4 4 Find the standard deviation

    asked by medo
  162. Gr.12 ENGLISH

    what are some major themes in the short story "The Storyteller" by H.H Munro(also known by pen name Saki) pleaseee help thanx :)

    asked by niini
  163. Physics

    A hot-air balloon has a total mass of 720 kg. It accelerates downwards (towards the ground) at 2.7m/s^2 even though an upwards lift force in acting on it. Find a:Find the lift force acting on the balloon B)What must be the total mass that needs to be

    asked by applebottom
  164. History

    what were the signifiance of the seven day battle?

    asked by Cierra
  165. Health Information Management Technology

    You have a backlog in medical records and deliquent records. How would you address each of the identified problems?

    asked by Johnnie
  166. physics

    A 30 kg block slides down a 20° ramp with an acceleration of 1.2 m/s2. What is the coefficient of kinetic friction between the block and the ramp?

    asked by HASANNY
  167. physics

    A student pulls horizontally on a 12 kg box, which then moves horizontally with an acceleration of 2 m/s^2. If the student uses a force of 15 N, what is the coefficient of kinetic friction of the floor?

    asked by HASANNY
  168. physics

    A man swims across the river with a velocity of 2 m/s relative to the flow of water. If the river flows steadily at 4 m/s toward south, what is the velocity of the man with respect to the shore? Solve for both the magnitude and the direction (in degrees).

    asked by HASANNY
  169. chemistry

    If 150.0 f of sulfuric acid is spilled, what is the minimum number of moles of sodium carbonate have to be added to complete reaction

    asked by rose
  170. The seven day Battle

    why did the Seven day battle start?And who won?

    asked by Cierra
  171. english

    Thanks for the help on putting up fence. I need help with starting general information (Background on illegal immigration& putting fence) How can I start with the background information on putting up fence? is it approiate using "THey or It is said? I just

    asked by Kelly
  172. chemistry

    what is the reaction equation when maleic anhydride is combines with granular zinc and HCl propose structures for the products you would obtain by treating fumaric acid, cinnamic acid, and butynedioic acid with zinc and HCl. write balanced equations for

    asked by anon
  173. Finance

    shley is planning to attend college when she graduates from high school 7 years from now. She anticipates that she will need $10,000 at the beginning of each college year to pay for tuition and fees, and have some spending money. Ashley has made an

    asked by John
  174. Statisitcs

    Suppose that X and Y are independent discrete random variables and each assumes the values 0,1, and 2 with probability of 1/3 each. Find the frequency function of X+Y.

    asked by Jade
  175. Science

    Would C6H6(NH3)OH be more soluble at a pH of 2.0 or 8.0?

    asked by Anonymous
  176. arithmetic

    The first term of an arithmetic sequence is -3 and the fifteenth term is 53. What is the common difference of the sequence? 14/13 25/7 4

    asked by Shawntrell
  177. communication

    What are some ways to save and store your personal financial information?

    asked by mahogany
  178. Physics-Kinetic energy

    Two 2.0 g bullets are fired with speeds of 40.0 m/s and 80.0 m/s, respectively. What are their kinetic energies? Which bullet has more kinetic energy? What is the ratio of their kinetic energies? A car has kinetic enery of 4.32* 10^5 when traveling at a

    asked by Pablo
  179. geography

    how do you rewrite the constitution?

    asked by jaydah
  180. Chemistry

    NaI(aq)+Hg(C2H3O2)2(aq) complete and balance complete equation

    asked by Lisa
  181. History

    By the end of 1863, what was the general feeling about the war in the South?

    asked by .....
  182. chemistry please help

    What is the energy (in J) of a photon of ultra-violet light that has a wavelength of 252 nm? The units for the answer are Joules. The error interval is 5%. I did the problem and i got 7.893E-37 did i do correct or was i close

    asked by Anthony
  183. Election

    In this year's 2010 U.S. election, who are the American citizens voting for? I'm not sure because I'm in Canada.

    asked by AL 92
  184. physics

    A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

    asked by Eden
  185. History

    You do not need to gain approval for your role. Choose the one you want and start working on the assignment Write a 700- to 1,050-word paper, written from the perspective of your chosen role, that addresses how each of the following factors may affect your

    asked by Chantell
  186. physics

    A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

    asked by Eden
  187. stats

    In order to make sure that their bags of chips are of sufficient weight, the Chipper Chip Company try to fill their 200 gram bags of chips with more than 203 grams. You have been given the task of investigating what proportion of bags produced do have over

    asked by lollzzz
  188. English

    I need a 450 word thesis about why buying a house is better than renting an apartment?

    asked by randy
  189. medical terminology

    dr hammer has scheduled a patient for chemotherapy. the patient had a mastectomy on june 1, 2000. Chemotherapy used after surgery is referred to as A) adjuvant, B) hormone, C) biologic, D) simulation

    asked by ceecee