Questions Asked on
April 5, 2013

  1. physics

    If a body weight 10N is lifted from the floor to a table 2m above the floor ,calculate the potential energy gained.What happens to the energy if the body falls of the table and hits the floor?

    asked by Chidex
  2. Trigonometry

    How do I prove that sin(x+y)-sin(x-y)=2cosx siny

    asked by Rene
  3. Physics

    A figure skater rotates about a vertical axis through her center with both arms and one leg extended. Her rotation rate is 0.65 rev/s. She then pulls her arms and leg closer to her body and begins to spin at a 1.85 rev/s. What is the ratio of her new

    asked by Denise
  4. Math

    1. What type of graph does not show the number of times a response was given? (1 point) box-and-whisker plot line plot stem-and-leaf plot bar graph 2. Which of the following types of information is suited for display on a scatter plot? (1 point)

    asked by Anonymous
  5. STATISTICS

    A particular cell phone company offers 4 models o phones, each in 6 different colors and each available with any one of 5 calling plans. How many combinations are possible?

    asked by Anonymous
  6. Algebra

    A box with no top is to be constructed from a piece of cardboard whose length measures 6 inch more than its width. The box is to be formed by cutting squares that measure 2 inches on each side from the four corners an then folding up the sides. If the

    asked by T H
  7. Spanish 2

    Fill the blank with the correct object pronoun. A nosotros ___________ aburre ir de compras.

    asked by Jasmin
  8. Biology

    Explain the role of white blood cells in the body's defense against foreign substances.

    asked by Shane
  9. Biology

    What are some of the treatments for coronary artery disease?

    asked by Shane
  10. PHYSICS

    A truck has a momentum of 5.8x10^4 Ns [S]. An average force of 2.2x10^3 N [S] increases the truck's momentum for the next 8.8s. What is the impulse and final speed of the truck?

    asked by R
  11. MAth

    the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the

    asked by jay
  12. Grammar

    Which verb completes the sentence below correctly? Each of the players ______ given a small trophy. was *(my answer) were Thanks for the help!

    asked by Oli
  13. World Geography

    REVIEW 1.How do lines of latitude and longitude help geographers study Earth? A. These lines show geographers the direction of Earth’s rotation around the sun. B. These lines help geographers see the difference between oceans and landforms on Earth’s

    asked by bre
  14. math

    1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. No there is no common side (lets say.) Thanks

    asked by Daniel
  15. Physics

    if a toy car's motor propelled it 1.905m in 7.1 seconds and it kept rolling .38m for 8.6 seconds what is the coefficient of friction between the wheels and the floor assuming that is the only source of friction. i know accel=.08m/s2 and -.12m/s2 but after

    asked by Julia
  16. Algaebra

    A rectangular swimming pool is 5 feet longer than it is wide. If a concrete walk 2 feet wide is placed around the pool, the area covered by the pool and the walk is 156 square feet greater than the area covered by the pool alone. What are the dimensions of

    asked by Taylor
  17. Physics

    Determine the electric potential energy for the array of three charges shown in the drawing, relative to its value when the charges are infinitely far away. (Let q1 = 8.48 µC, q2 = 19.2 µC, and q3 = -16.1 µC.)

    asked by Emilie
  18. chemistry

    What is molarity of propanol, C3H7OH, when 60. mL propanol is mixed with enough H2O to make a final volume of 100. mL? The MW of propanol = 60.11 g/mol and the density of propanol = 0.804 g/mL.

    asked by Dolores Ramirez
  19. Calc

    Find the present value of $14000 due in 9 years at the given rate of interest. (a) 2%/year compounded semiannually? (b) 5%/year compounded semiannually?

    asked by Carl
  20. English

    Mandy interviewed a source who told about how she was illegally treated by the police. Using her information in the speech is an example of: A. facts and statistics. B. narrative. C. testimony. D. hypothetical example. i'm confused between B & C 2. An

    asked by Amy
  21. Calculus

    the measurement on one side of a right triangle is found to be 9.5 inches inches, and the angle opposite that side is 27 degrees,45' with a possible error of 15'. (round answers to two decimal places) a) Approximate the percent error in computing the

    asked by Jay
  22. UNDERSTANDING OBSERVATION AND BEHAVIOR

    The Child Development Checklist is an observation tool that A. includes space to record non-objective data. B. omits references to children's emotions. C. focuses on sequences of child development. D. can only be used by one observer for the same child.

    asked by Anonymous
  23. Math

    Henry is a quality control inspector. He is watching the production line for Barb's Raisin Cookie. Henry will reject a cookie with less than 8 raisins. In the past, one out of every 100 cookies had less than 8 raisins. Find the probability that the first

    asked by Anonymous
  24. math

    1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension.

    asked by Daniel
  25. Physics

    A 35kg child is swinging on a swing with length 2.8m to the bottom of the seat. At the highest point of the swing, the rope makes an angle of 42 degrees from vertical. Calculate the speed of the child at the bottom of the swing. Assume no thermal energy is

    asked by John
  26. math

    n is a digit such that the 5-digit number n878n is divisible by 9. What is the value of n?

    asked by ayan
  27. World Geography

    REVIEW 1.Which of the following is an abundant natural resource found in Canada? A. Gold B. Timber C. Soybeans

    asked by bre
  28. geometry

    LMNO is a parallelogram. If NM = x + 15 and OL = 3x + 5, find the value of x, then find NM and OL

    asked by ashley
  29. algebra 1

    What is the speed, in miles per hour, of a toy car that runs 40 feet in 8 seconds? Round your answer to the nearest whole number. (1 hour = 3600; 1 mile = 5280 ft)

    asked by terri
  30. Physics

    Light with a wavelength of 500 nm (5. 10-7 m) is incident upon a double slit with a separation of 0.44 mm (4.40 10-4 m). A screen is located 2.1 m from the double slit. At what distance from the center of the screen will the second dark fringe beyond the

    asked by Melissa
  31. Chemistry

    Consider the salt FeSO4.7H20. What quantity in grams of salt could be produced from 1g of iron, assuming the overall reaction yield is 75% ? :) Thanks in advance!

    asked by Matt
  32. math

    The square yard you are mowing has an area of 9600 ft^2. What is the side length of the yard? Round your answer to the nearest tenth of a foot if necessary. Please solve and explain

    asked by Jane
  33. English

    1. When researching for supporting materials about the impact of violence in the media, it is a good idea to get assistance from this resource. A. Television B. Call-in radio C. Librarian D. Personal interview is it D 2. An advantage of using media

    asked by Amy
  34. English

    1. In conducting a personal interview, setting limits on what will be covered should occur: A. at the beginning of the interview. B. in the middle of the interview. C. at the end of the interview. D. during the strategy stage. i'm confused between A & D 2.

    asked by Amy
  35. Math

    How do you get the big number on a runaway math puzzle worksheet

    asked by Victor
  36. Medical Transcription

    The patient obtained records in order to save the nurse a phone call to her previous doctor and she made sure to ask right away for this to be done to save time. Is this sentence a run-on, usable, or correct as is?

    asked by Debbie
  37. physics

    A police offer may warn that “speed kills.” In video games, high-speed crashes are common. Suppose a particular scene in a game required the following elements: • a high performance motorcycle must crash into a barrier and be stopped • a small

    asked by alejandro
  38. math

    in how many different orders can 4 children be arranged in a line,if john and julie refuse to stand next to one another ?

    asked by josh
  39. math

    john is the age that sally was 3 years ago,13 year old elissa is 3 years older than sally,how old will john be on his next birthday?

    asked by josh
  40. AP CHEM

    Aspirin has the structural formula below. Which functional groups does this molecule contain? I. Acid II. Alcohol III. Ester IV. Ether I have no way of posting the structure, but it is on google images! If you type in aspirin structural formula, it's the

    asked by Anonymous
  41. health

    After ejaculation, the sperm can live for about ____ in the female reproductive tract

    asked by tammie
  42. Biology - URGENT Enzyme Lab

    Did a catalase producing hydrogen peroxide lab, used manganese dioxide, fresh frozen liver, potato, ice, fine clean sand, etc. Basically just added hydrogen peroxide to the catalysts under diff conditions and stuff. Just don't get this question which is :

    asked by Shreya
  43. algebra

    An investor invested a total of $2200 in two mutual funds. One earned 5% profit while the other earned a 3% profit. If the investor's total profit was $86, how much was invested in each mutual fund?

    asked by monique
  44. World Geography

    REVIEW 1.What type of information does a physical map show? A. Natural features

    asked by bre
  45. Physics 1

    A mass m1 = 4.9 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 4.7 kg which hangs freely from the string. When released, the hanging mass falls a distance d = 0.8 m.

    asked by Brandon
  46. World Geography

    REVIEW 1.Where is Canada’s population density highest? A. In the cities of Northern Canada B. In cities in central Canada

    asked by bre
  47. math

    The three terms x+12, 3x+5 and 2x+25 are the first three terms of an arithmetic progression. What is the value of x?

    asked by ayan
  48. math

    Find a positive integer N, such that when N is added to 98, it gives the same result as N multiplied to 98.

    asked by ayan
  49. Algebra

    A room is shaped like a trapezoid. There are windows on the walls that are parallel. The distance between the windows is x. The length of one windowed wall is 3 less than the x, and the length of the other windowed wall is 3 more than x. The area of the

    asked by Anonymous
  50. Chemistry

    a)Would you expect the empirical formula you determine for magnesium oxide to be the same as the one determined by another student? b) Would you expectan empirical formulato be the same even though different masses of Mg were used? Briefly explain. c) If

    asked by Helpme123
  51. physics

    A flying bat emits squeaks at a frequency of 80 kHz. If a stationary observer picks up the frequency of the squeaks as 78 kHz, determine the speed at which the bat is flying

    asked by Helen
  52. Biology

    Explain what happens when a person with AB+ donates blood to a patient with A+ blood type?

    asked by Shane
  53. Chemistry

    Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)

    asked by Brittney
  54. physical geography

    in the northern hemisphere the weather map showing isobars and the positions of cold and warm fronts

    asked by denise
  55. college math

    I posted this problem earlier, but I still can't figure it out. It is for extra credit. I was hoping if someone could please solve it. I would greatly appreciate it. A bourbon that is 51 proof is 25.5% alcohol by vol. while one that is 82 proof is 41%

    asked by Lorie
  56. Physics

    The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on. If the atom's diameter is 1 multiplied by 10-10 m in its lowest energy state, what is its

    asked by Kim
  57. Art answer check

    1. Ann Hamilton's "Indigo Blue" is an example of what kind of art? Feminist Art Action Painting x Installation Art Video Art 2 The events in contemporary Iran give this artist context for films and videos by this artist: Wemda Gu x Shirin Neshat Zaha Hadid

    asked by kristina
  58. World History

    How has the nature and technology of warfare evolved,from earliest times to 1500CE?

    asked by Anonymous
  59. Physics

    A force (in this case, water) is applied to a waterwheel that turns and lifts a small weight that is attached to a string that is attached to the waterwheel's axle. How do Newton's 3 laws of motion describe this event?

    asked by Pat
  60. Science

    What are the responsibilities of humans toward natural resources? Describe three of the environmental challenges humans face today.

    asked by Macie
  61. History/English

    I have two separate questions that I am having trouble answering... Why is Roman law often considered to be the greatest contribution of the Romans to the modern world? Also, I have to find image, style, tone, setting, and theme within the book The Hunger

    asked by Tim
  62. Math

    If the floor plan of a new building is shown the building cost $35.00 a saqure foot to construct you need to obtain insurance for the new building .how much insure?

    asked by Becca
  63. Science

    What do the hairlike structures on a cell do? Please don't give me a link to another website. Thank you!

    asked by Serena
  64. MATHS

    Class A and Class B have the same number of pupils. The ratio of the number of boys in Class A to the number of boys in class B is 3:2. The ratio of the number of girls in Class A to the number in Class B is 3:5. Find the ratio of the number of boys to the

    asked by RS
  65. science

    how might the shape of the hairlike structures relate to their function? Thanks.

    asked by Louis
  66. Medical Transcription

    PUNCTUATION AND CAPITALIZATION The patient has had recurring episodes of paroxysmal nocturnal dyspnea and 3 pillow orthopnea. Associated symptoms such as lightheadedness, breathlessness, and exertional dyspnea occur during daytime hours. Is this statement

    asked by Debbie
  67. statistics

    find p(9,4)

    asked by pj
  68. writing a paragraph

    how to apply for a spcific job

    asked by phyllis
  69. MATHs

    The three terms x+12, 3x+5 and 2x+25 are the first three terms of an arithmetic progression. What is the value of x?

    asked by Oian
  70. Maths

    What is the sum of all real solutions to the equation x−6/4=−2/x?

    asked by Oian
  71. English

    A hypothetical example is: A. a false example. B. not real but can happen. C. an example used to prove a hypothesis. D. has no place in a speech. is it B

    asked by Amy
  72. chemistry

    what is the mass of sodium nitrate (85.00g/mol) that releases 2.55L of gas at STP?

    asked by Jennifer
  73. Discrete Math

    For sets A, B, C is a subset of U, prove or disprove (with a counter-example) the following: If A is a subset of B, B is not a subset of C, then A is not a subset of C,

    asked by Ron
  74. Chemistry

    What kind of energy is primarily used to bring electricity to remote areas that are far from power lines? A. Kerosene B. Batteries C.Solar electric units D. Electrical network

    asked by Marie
  75. Maths

    Suppose z=a+bi, where a and b are integers and i is the imaginary unit. We are given that |1+iz|=|1−iz| and |z−(13+15i)|

    asked by Oian
  76. science

    Calculate the work done by lifting a stack of books 0.5 m onto a table. The force you exerted eas 150N. Please help I am lost as how to do this

    asked by Cherie
  77. Medical Transcription

    Thanks for your help!!

    asked by Debbie
  78. Maths

    Let f(x)=2x^2+40x+25. Given that f(x) leaves the same remainder when divided by x−a as when divided by x+2a for a positive integer a, what is the value of a?

    asked by Oian
  79. math

    Ricky is 5 years older than Sara. Three years ago he was twice her age. How old is Ricky? Thanks for the help!

    asked by Lorie
  80. computer

    create a QBASIC program using DO WHILE LOOP

    asked by jolomi
  81. Algebra Binomial Theorem

    Hi, can somebody help me with this math problem I am stuck on? How do I use binomial theorem to expand(2x – 5y)^3. I need to show my word so any help you can provide would be greatly appreciated.

    asked by Dakota
  82. computer

    the meanings of this QBASIC WORD • FOR- • DO - • SELECT- • MID$- • ASC- • SQR- • LEN- • LEFT$- • TIME$- • INT-

    asked by jolomi
  83. college math

    A quantity, W, is directly proportional to X and the square Y, and inversely proportional to the cube of Z. W=3 when X=4, Y=2 and Z=4. What is the value of W when X=8, Y=9 and Z= 6? Give answer to 3 decimal places. Thanks in advance! I appreciate all the

    asked by Lorie
  84. physics

    For a long straight wire, carrying a current of 20 A. A rectangular coil 5 x 10 cm2 is 2 cm apart. The coil carries a current of 5 A. a) determining the force acting on each segment of the rectangular coil. b) What is the net force on the coil?

    asked by Sergio
  85. Science

    How do the oceans support life? How have the oceans and their marine life changed through time?

    asked by Megan
  86. Life Orientation

    What are the Three (3) enviromental health hazards that cause ill health,crises, and or disasters within south africa and globally

    asked by Koketso
  87. english/writing

    how can i reword this sentence differently and better? it sounds wrong to me. In conclusion, The Scarlet Letter is a transcendentalist novel of the strength of individual character.

    asked by Sarah
  88. Statistics

    If you draw two clubs on two consecutive draws from a standard deck of cards you win $660 otherwise you pay me $40

    asked by Lynn
  89. science

    What are the large- and small- scale causes of climate and weather?

    asked by kim
  90. chemistry

    draw particle diagrams that account for the fact that 2 volumes of nitric oxide gas react with 1 volume of oxygen gas to form 2 volumes of product with no leftover gas

    asked by Paula
  91. History pls help

    Which of the following nineteenth-century inventors is associated with Menlo park in New jersey A. Alexander Graham Bell B. Thomas Alva Edison C. Cyrus W. Field D. Gustavus F. Swift

    asked by Brooke
  92. algebra

    one inch is about 2.254 centimeters .A puzzle has a length of 28 centimeters .What is the length of the puzzle in inches ,rounded to the nearest tenth of an inch

    asked by mayra
  93. chemistry

    If your equation of the line for you SAM analysis is y=1x+0.3980, what is the concentration of Mg in ppm in your unknown solution?

    asked by M
  94. math

    A backery makes loaves of bread for $1.40 and sells them for $1.75 per loaf. What is the percent markup on each loaf based on cost?

    asked by Vickie
  95. physics

    If a body weight 10N is lifted from the floor to a table 2m above the floor ,calculate the potential energy gained.What happens to the energy if the body falls of the table and hits the floor?

    asked by Chidex
  96. maths

    5 seamstresses can make 3 shirts in 3 days so how many can 7 make in 10 days??

    asked by Anonymous
  97. chemistry

    If your equation of the line for you SAM analysis is y=1x+0.3436, what is the concentration of MgO in W/w% in your unknown with a mass of 0.1018?

    asked by M
  98. Psychology

    Professor Webb is interested in conducting a study on gender differences and coping with stress. He should begin his research by examining:

    asked by Nancy
  99. algebra

    One car travels 105 miles in the same amount of time it takes a second car traveling 6 miles per hour slower than the first to go 87 miles. What are the speeds of the cars?

    asked by jairo
  100. History

    in 1866 Chief cloud ambushed and massacre Union soldiers the massacre was named what A. Little big horn B.Wounded Knee C.Fetterman D. Chivrington

    asked by Angel
  101. math

    it takes 7 men 10 days to build a garage.Halfway through building the garage they get some help from 3 people and continue to work at the same rate a)How long will it take to finish of the garage b)How long did it take

    asked by Anonymous
  102. math

    Jose, Paul,and Dan went fishing. It was a good day, and all three of them caught a fish. Dan's fish weighed four times as much as Paul's fish, and Jose's fish weighed half as much as Dan's fish. Altogether, the three fish weighed 21 pounds. How much did

    asked by sarah
  103. Geometry

    How many three digit numbers have three distinct digits?

    asked by Jacob
  104. Math

    Can you use the numbers 1 - 9, along with any math symbols and operations, to arrive at the answer of 100 when the 6 and 9 have a negative sign in front of them?

    asked by Enis
  105. Simple Math

    Please explain to me what I need to do . A cable 35 feet long runs from the top of a utility pole to a point on the ground 30 feet from the base of the pole. How tall is the utility pole ?

    asked by Jessica
  106. ap calculus

    a particle moves along the x axis in such a way that its acceleration at time t, t>0 , is given by x(t)= (ln x)^2. at what value of t does the velocity of the particle attain its maximum

    asked by bob
  107. maths-

    In parabola, give any example of a quadratic equation which doesnot touches the x-axis and y-axis

    asked by anoynomous
  108. Psychology

    The weather person on the evening news reports that the average daily rainfall for the last six months is 10 inches. A farmer is trying to determine how the rain might affect his crops.

    asked by Nancy
  109. math

    tom,jack and joe are the fastest runners in the school.if they race one another,without dead heats,how many combinations can they finish in if they occupy the first 3 places ?

    asked by josh
  110. Geometry

    ABCD is a parallelogram. If ÚABC=35 degrees , what is the measure (in degrees) of ÚADC ?

    asked by Jacob
  111. college math

    It takes Mike 8 minutes to walk to the store from his house. The return trip takes 13 minutes because he walks 1mph slower due to the bags he is carrying. How fast did Mike walk on his way to the store? Carry out one decimal place. Thanks in advance!

    asked by Lorie
  112. chemistry

    Calculate the concentrations of all species present C6H5N2, C6H5NH3+ OH^-, and H3O^+}) in a 0.14 M solution of aniline.

    asked by kim
  113. science

    What may be some long-term effects of human interactions with the oceanic environments?

    asked by Jane
  114. math

    row a;1,2,3,4,5............................rowb;1,2,4,8,16...........................row c;2,4,7,12,21.........................what is the first entry in row c which is greater than 100 is most likely to be ?

    asked by josh
  115. FINANCE

    Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s

    asked by CHASE
  116. physics

    A 2.10 m diameter university communications satellite dish receives TV signals that have a maximum electric field strength (for one channel) of 7.90 µV/m. (a) What is the intensity of this wave? W/m2? (b) What is the power received by the antenna? W? (c)

    asked by taryn
  117. Algebra II

    What is the simplified form of (1/2x^-2)^3 X^7?

    asked by Piggy
  118. History

    If u were a immigrant in America at 1880 its most likely u were a- german N Lutheran b Italin N Catholic C Irish N protestant Or D Swedish n protestant

    asked by Bliss
  119. Algebra II

    Given x(x) = 2x^3 - 6x^2 + 8 Rewrite the given equatin in factored form.

    asked by Piggy
  120. physics

    On its highest power setting, a microwave oven increases the temperature of 0.350 kg of spaghetti by 45.0°C in 100 s. (a) What was the rate of power absorption by the spaghetti, given its specific heat is 0.900 kcal/kg·°C? W (b) Find the average

    asked by taryn
  121. Psychology

    One way to measure the validity of test would be to:

    asked by Nancy
  122. physics

    A boat is traveling on a bearing of 25 degrees East of North at a speed of 4 knots (a knot is 1.852 km/h). After traveling for 3 hours, the boats heading is changed to due South and it travels for an additional 2 hours at 5 knots. Using a Vector diagram,

    asked by Chad
  123. Algebra II

    simplify (2x^-4 y^-2 / 3x^-6 y^-8)^3

    asked by Piggy
  124. chemistry

    I'm trying to figure out what went wrong during my freshman chem lab. We were figuring out the enthalpy of formation of MgO(s). MgO(s) + 2H+(aq) -> Mg2+(aq) + H2O(l) dHrxn = -334.83kJ/mol Mg(s) + 2H+(aq) -> Mg2+(aq) + H2(g) dHxrn = -1105kJ/mol H2(g)+

    asked by Louie
  125. Algebra II

    Write a quartic funciton that has 2 real and 2 imaginary roots and rewrite the polynomialin standard form.

    asked by Piggy
  126. AP CHEM

    A secondary alcohol results from the attachment of a hydroxy group to which carbon atom? C |

    asked by Anonymous
  127. Algebra II

    write a fourth degree polynomial function a leading coefficient o 1 given three of its zeros are -1, 3 and 2i, then re-write it in simplified form.

    asked by Piggy
  128. Algebra 1

    A certain United States flag has a perimeter of 58 feet . The length of the flag is 9 feet longer than the width. What are the dimensions of this flag ?

    asked by Citlalli
  129. Art

    1.With late 20th c. sculpture a new attitude developed around the use of 'ordinary' materials. Some said that this was merely "Dadaist revival." The work may involve moving parts (kinetic sculpture), or 'combines' of seeming unrelated objects, or popular

    asked by kristina
  130. Physics

    (a) In the diagram above the small semi-circle in the wire above R_1 indicates that it is not in contact with the horizontal wire which it appears to intersect due to the 2-dimensional projection. Additionally, the horizontal wire is continuous, not

    asked by Phy
  131. grade 6 honors math

    Of 150 sixth graders choosing electives for next year, 50 signed up for theater, 65 signed up for art and 70 signed up for band. Some students did not choose an elective. Represent this information using Venn Diagrams.

    asked by Jake
  132. cultural diversity

    a speaker you over heard saying____was employing litrate style oral language.

    asked by imani
  133. Chemistry

    A mixture of 1.39 g H2 and 1.60 g He is placed in a 1.00-L container at 27°C. Calculate the partial pressure of each gas and the total pressure. PH2 = ? atm PHe = ? atm Ptotal = ? atm Please put answer so i can compare to my answer

    asked by Rashid
  134. college math

    A quantity, W, is directly proportional to x and the square of y and inversely proportional to the cube of z. W-3 when x=4,y=2 and z=4. What is the value of w, when x=5, y=5 and z=4. Give answer to three decimal places. Thanks so much!

    asked by Lorie
  135. help with chemistry

    Uranium hexafluoride is a solid at room temperature, but it boils at 56°C. Determine the density of uranium hexafluoride at 67°C at 759 torr. ___g/L I got 12.7 i do not know if this is correct. Please help

    asked by Bob
  136. Chem HW!! Difficult! HELP!

    Urea (H2NCONH2) is used extensively as a nitrogen source in fertilizers. It is produced commercially from the reaction of ammonia and carbon dioxide. 2 NH3(g) + CO2(g) ---Heat pressure---> H2NCONH2(s) + H2O(g) Ammonia gas at 223°C and 90. atm flows into a

    asked by Jane
  137. early chlhood

    Ms. Sue you do not know me and I do not know you. I am not a cheater because I have a lot going on in my life. My husband has stage four cancer and I am trying to finish school and also take care of my two small children. I watching my husband die in front

    asked by betsy
  138. physics

    A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between

    asked by /
  139. physics

    A box is being lowered down a wall at constant speed by a girl, as shown. Her hand is pushing on the edge of the box with 50 N of force at a 45◦ angle with respect to the horizontal. The box weighs 40 N. Find the coefficient of kinetic friction between

    asked by /
  140. physics

    A person pushes with force F on a box which remains at rest on a rough floor as shown in the top figure. The bottom figures illustrates all the force acting on the box. a) What condition must be satisfied by all the force acting on the box so that it

    asked by /
  141. World Geography

    REVIEW Which ecosystem usually supports thick forests of deciduous trees? A. Tropical forest B. Temperate forest C. Savanna

    asked by bre
  142. Math

    Justin rides his bike in a rectangular route. He knows the total distance is 6,188 yards and the length of the shorter side of the route is 741 yards. What is the length of the longer side ?

    asked by Josh
  143. World Geography

    REVIWE 1.Using up resources is one of the negative effects of A. the birth rate. B. the death rate.

    asked by bre
  144. Math

    A certain United States flag has a perimeter of 58 feet . The length of the flag is 9 feet longer than the width . What are the dimensions of this flag?

    asked by Citlalli
  145. World Geography

    REVIEW 1.____________ spread cultural traits because they bring cultural traditions with them to their new homeland. A. Traders B. Explorers

    asked by bre
  146. FRM 121 Fashion History II

    How can I find Fashion Period Report Victorian and Bustle Era Society and Fashion?

    asked by Tomika Davis
  147. chemistry

    A solution is made by dissolving 0.10 mole of Na2SO4 in water to a final volume of 1.00 L. What is the molar concentration of Na+ ions in the solution?

    asked by Dolores Ramirez
  148. Math

    Solve 3cosx+1=2secx

    asked by Marco
  149. World Geography

    REVIEW 1.An area in which a single culture or cultural trait is dominant is called a ____________. A. culture B. cultural landscape

    asked by bre
  150. building science

    how do we calculate the equilibrant if the upward force is 450N and the downward force is 750N acting on the same line?

    asked by selvan
  151. math

    a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?

    asked by vaidehi
  152. World Geography

    REVIEW 1.Demographers are scientists who study A. weather and climate. B. pollution.

    asked by bre
  153. math

    a railway train 100 m long is runing at the speed of 50km/hour in what time will it pass pole near the line?

    asked by vaidehi
  154. math

    a railway train 100m long is runing at the speed of 50km/hour in what time will it pass pole near the line

    asked by vaidehi
  155. math

    make out a bill for 4 new car tyres at k54.75 each?

    asked by monzii
  156. Math

    I need 120 pieces of wire that are 18 inches long. How much wire should I buy? Thanks!

    asked by Carla
  157. physics

    a circular plastic dish of radious 2 cm is floating in a bucket of water. A small iron block is placed gently in it. It sink by 1cm find the mass of the block

    asked by chandu
  158. Chem

    Use a chemical equation to help explain why the pH of an aqueous solution changes after HCl solution has been added This is what I got HCL + H2O = H30+ plus CL- Hope that makes since (those are a positive and negative signs at the right side of the

    asked by meghan
  159. economics

    the south African government is not providing enough welfare or subsidies to the poor and underpriviledged. what are the cost and consequences of providing the subsidies and welfare?

    asked by leereshnie
  160. math

    PROCESSING CLAIMS. Joe takes x hours on the average to process a claim. whereas Ellen's average is 1 hour longer. a) write a rational function C(x) that gives the number of claims that they process while working for an 8-hour shift. b) Find C(c)

    asked by mohamed
  161. Math

    I have some white and black marbles in a box. There are 30 white marbles. There are 14 more white marbles than black marbles. How many black marbles do I have?

    asked by Caroline
  162. Physics

    A long coaxial cable consists of two concentric conductors. The inner conductor is a cylinder with radius R_1, and it carries a current I_0 uniformly distributed over its cross section. The outer conductor is a cylindrical shell with inner radius R_2 and

    asked by Phy
  163. World Geography

    REVIEW 1.Which of the following statements about the natural resources of the United States is most accurate? A. The many agricultural resources of the United States have made up for its lack of other resources.

    asked by bre
  164. Life orientation

    Identify and discribe 3 environmental health hazards that cause ill health

    asked by Mduduzi
  165. History

    Who was the first president

    asked by Anonymous
  166. Algebra II

    I do not understand what this is asking me to do. I've several different ways and I do not feel comfortable with my answer. n^3 -5n^2 -2n +24 =0 Any guidance would be so helpful

    asked by Patty
  167. World Geography

    REVIEW 1.Canada currently ranks first in the world in which category? A. Total number of Internet users B. Percentage of college and university graduates

    asked by bre
  168. Government senior college ikoyi

    An equilateral triangle of side 20cm is inscribed in a circle.calculate the distances of a side of the triangle from the centre of the circle.

    asked by Monday Godwin
  169. Maths

    How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?

    asked by Ayush
  170. World Geography

    REVIEW 1.Which of the following has made American culture more accessible to the rest of the world? A. Scientific Research B. Imports C. The Internet D. Immigration

    asked by bre
  171. chemistry

    a certain a digestive reaction, performed at optimum temperature and pH takes 10 minutes to reach completion when performed in the absence of the associated catalyst. How many minutes would the same reaction require if an enzyme that increase the reaction

    asked by meghan
  172. Discrete Math

    Let n be positive integer greater than 1. We call n prime if the only positive integers that (exactly) divide n are 1 and n itself. For example, the first seven primes are 2, 3, 5, 7, 11, 13 and 17. (We should learn more about primes in Chapter 4.) Use the

    asked by Ron
  173. Math

    I am having trouble finding an article that incorporates research of confidence intervals to market a new product. I will need to Summarize the information and suggest if is it wise to go ahead and market the product. Do you any suggestions on a article I

    asked by Tameika
  174. math

    Able starts off counting at 13, and counts by 7. What is the 11th number that Able will say?

    asked by ayan
  175. World Geography

    REVIEW 1.Which of the following was one cause of the Civil War in the United States? A. The South wanted new states to allow slavery and the North did not. B. The North wanted new states to allow slavery and the South did not. C. The North opposed signing

    asked by bre
  176. World Geography

    REVIEW 1.What natural resource most attracted European traders to Canada? A. Timber

    asked by bre
  177. World Geography

    REVIEW 1.Which of Canada’s regions has limited vegetation and freezing temperatures most of the year? A. Maritime B. Subarctic C. Tundra

    asked by bre
  178. MATH

    a baseball team has 15 members, 3 of whom always play and bat at the top of the batting order. For the game Sunday, the starting lineup of nine players will be filed out from the remaining members and a batting order will be set. How many possible betting

    asked by HELP
  179. math

    What is the largest possible integer that can be chosen as one of five distinct positive integers whose average is 10?

    asked by ayan
  180. World Geography

    REVIEW 1.The forests of the Pacific Northwest are just one of the many different ______________ in the United States where many people work in the same industry. A. elevation regions B. political regions C. climate regions

    asked by bre
  181. math

    Let f(x)=2x2+40x+25. Given that f(x) leaves the same remainder when divided by x−a as when divided by x+2a for a positive integer a, what is the value of a?

    asked by ayan
  182. math

    Suppose z=a+bi, where a and b are integers and i is the imaginary unit. We are given that |1+iz|=|1−iz| and |z−(13+15i)|

    asked by ayan
  183. World Geography

    REVIEW 1.Where is the majority of Canada’s oil found? A. Along the Atlantic Coast B. Along the border with the United States C. In western Canada

    asked by bre
  184. World Geography

    REVIEW 1.In what ways did immigrants contribute to American society in the early 1900s? A. They increased the defensive power of the United States. B. They worked in factories, built railroads, and opened businesses. C. The took political power in most

    asked by bre
  185. Math

    Please help me with this problem: A bourbon that is 51 proof is 25.5% alcohol by volume while one that is 82 proof is 41% alcohol. How many liters of 51 proof bourbon must be mixed with 1.0 L of 82 proof bourbon to produce a 66 proof bourbon? Give answer

    asked by Lorie
  186. Chemistry

    What is the theoretical mass of the products in the double displacement reaction: CaCl2 (aq) + Na2CO3 (aq) → 2NaCl (aq) +CaCO3 (aq)

    asked by Allison
  187. PHYSICS

    A baseball of mass 148g is travelling at 35.0m/s [E] collides with a baseball bat. the collision lasts for 1.10ms. After the collision, the baseball travels at 52m/s [W]. What is the force of the bat on the baseball

    asked by R
  188. PHYSICS

    Max is throwing a 57g tennis ball upward and hitting it (with a racket) when it reaches the top of its flight. If the racket exerts an average force of 440N on the ball, find the speed of the ball after the collision (if they are in contact for 4.5ms)

    asked by R
  189. Algebra

    The area of a square is 40 in². If the length of each side of the square is 2x in., what is the value of x?

    asked by Anonymous
  190. FINANCE

    Pls explain and prodive a resource to fine equation. Computing interest tax savings.Dharma Supply has earnings before interest and taxes (EBIT) of $500,000, interest expenses of $300,000, and faces a corporate tax rate of 35%. a. What is Dharma Supply’s

    asked by CHASE
  191. Math

    please help!!!!Apply newtons method to approximate the x-values of the indicated points of intersection of the 2 graphs. continue the process until 2 successive approximations differ by less than 0.001. (Hint: Let h(x)=f(x)-g(x)) f(x)=x^6 g(x)=cos(x) 1)x=

    asked by Harry
  192. Quantative Reasoning College Freshman

    Using the formula y=-16t^2+vt+h help me with this word problem : A firework rocket is fired straight up into the air with an initial velocity of v=192ft/sec From the top of an apartment building h=48ft off the ground. The firework will explode when it

    asked by Bonni
  193. Quantitative Reasoning ( College Freshman)

    For the quadratic function : y=-0.25(x+8)(x-6) write the function in the vertex form y=a(x-h)^2+k by completing the square. Show all work.

    asked by Bonni
  194. maths-

    Find the area of triangle . in a right-angled triangle, the length of the hypotenuse is 65 cm

    asked by anoynomous
  195. math

    i am less than a hundred the sum of my digits is seventeen i am an even number

    asked by jessica
  196. Maths

    Using the exact trigonometric ratios of 45 degree,30 degree and 60 degree,evaluate the following,leaving where necessary your answer in surd form. (a) 3 sin 30 degree-2 cos 60 degree (b)(tan 45 degree)(4 cos 60 degree-2 cos 60 degree)

    asked by Shane
  197. maths

    In parabola, give any example of a quadratic equation which doesnot touches the x-axis only.

    asked by anoynomous
  198. Maths

    An aeroplane flies due north for 200 km and then turns due east and flies for a further distance of 325km. Find the bearing,to the nearest degree,of the aeroplane from its starting point.

    asked by Shane
  199. maths-

    The remainder obtained by dividing x^2 -3kx +2 by ( x+2) is twice the remainder obtained by dividing x^2 +3x –k by ( x+3). Find the value of k

    asked by anoynomous
  200. physics

    A 50kg gun mounted on wheels shoots a 3kg missile directed at an angle of 30 with a horizontal.if the muzzle velocity of missile is 550m/s what is the horizontal recoil velocity of the gun.

    asked by nudo
  201. maths

    An airplane is flying at an altitude of 10,000m. The pilot sees two ships A and B. Ship A is due south of P and 22.5km away (in a direct line).Likewise ship B is due East and 40.8km from P. Find the distance between the two ships.

    asked by Shane
  202. maths

    Using the complementary angle ratio results,find the value of x for the following. (a) cos(x+35)degree=sin x degree (b) sec x degree=cosec(x+20)degree

    asked by Shane
  203. social studies

    19. Identify two problems resulting from urban sprawl in the western region of the United States. If these problems are not solved, what will the outcome likely be? (5 points) I don't want the answer, my question is what was the Urban Sprawl?

    asked by Someone
  204. Electrochemistry

    Between Mg and Zn which one is the anode and which one is the cathode? And between Mg and Fe which one is the anode and which one is the cathode? Please and thank you. im so stuck. :/

    asked by shyanne
  205. Math

    A scientist is mixing a chemical solution for an experiment. The solution contains 3/8 ounce of a chemical and 1/6 ounce saline solution. What is the unit rate of chemical to saline solution?

    asked by Ann
  206. maths

    From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.

    asked by Shane
  207. maths

    From an observer 0, the angles of elevation to the bottom and top of the flag pole are 36 degree and 38 degree respectively. The base is 200m. Find the height of the flag pole.

    asked by Shane
  208. Maths

    How many ordered quadruples of distinct positive integers (a,b,c,d) are there such that 1/a+1/b+1/c+1/d=1?

    asked by Ayush
  209. computer science

    draw a level 0 diagram as well as a context diagram for the following scenario When renting a car from Banz Car Rental Agency, persons renting a car from the agency will be given a brochure of the type of vehicle, insurance on vehicle and the rental

    asked by fernando
  210. Calculus 3

    Let G be the region in the first octant that is inside both the cylinders x^2+y^2=1 and y^2+z^2=1. Use a triple integral to evaluate the volume of G.

    asked by Heather
  211. epidemiology

    ) In a recently published article authors reported on their research examining the effectiveness of compound C-4277, an anti-viral agent. This agent was tested to determine its impact on rhinoviruses, which are the leading cause of common colds. The

    asked by sara
  212. Maths

    Find all the values of theta between 0 degree and 360 degree, and state the quadrants in which they exist. (a)cos theta=-0.71 (b)tan theta=1.732

    asked by Shane
  213. math

    what is 25.515 rounded to the nearest cent?

    asked by lauren
  214. algebra 1

    suppose xitlali can paint 6 rooms in 12 hours and alicia takes eight hours. how long would it take the two painters together to paint the 6 rooms?

    asked by Anonymous
  215. Accounting

    How would the journal entry look if you sold a 8% bond with a face value of $11,000 for $9,500? Bond will mature in 10 years.

    asked by Sam
  216. epidemiology

    In a study examining associations between level of education and response to the Philadelphia Public Health Department’s emergency messages to “shelter in place” (meaning stay in your home) following an accidental release of chemicals from the Sunoco

    asked by sara
  217. math

    If Deborah ate five pieces of a pizza that was cut into 16 pieces, what percentage of the pizza did she eat?

    asked by Jenny
  218. Life orantation

    Discuss 5 ways in which the human or environmental problem impacts on the community.provide relevant sources to support your claims

    asked by Nhlanhla mogola
  219. Physic

    How much work W is required to accelerat a 1000kg object from initial velocity of 100m/s to a final velocity of 200m/s?

    asked by Cynthia. Rodgers
  220. Physics

    Light with a wavelength of 500 nm (5. 10-7 m) is incident upon a double slit with a separation of 0.28 mm (2.80 10-4 m). A screen is located 2.7 m from the double slit. At what distance from the center of the screen will the first bright fringe beyond the

    asked by Melissa
  221. pre-calc

    one to one property, 3^x-4=1/27 Need help do not understand

    asked by supergirl
  222. math

    If gasoline costs $0.42 a liter, approximately how much will it cost to fill a 40 gallon tank?

    asked by Tim
  223. math

    1) A rancher wants to enclose two rectangular areas near a river, one for sheep and one for cattle. There is 240m of fencing available. Express the area of the enclosures as a function of its dimension. 2) A container company is designing on open-top,

    asked by Daniel
  224. Math

    Tom has some baseball cards and football cards. He had four times as many football cards than baseball cards. He has 12 football cards. How many baseball cards does Tom have?

    asked by Kristy
  225. Math

    Mike had some pieces of wood to build a doghouse. He cut each piece in fourths. Then he had 24 pieces of wood. How many whole pieces of wood did Mike have to start with?

    asked by Kristy
  226. algebra 2

    f(x)= X-5 +2

    asked by kevin
  227. mathematics

    the cross section of a solid in the form of a cone of height h, and a hemispherical bowl of radius r. the volume of the hemispherical portion is half that of the conical portion. calculate: 1)the ratio r:h 2)the vertical angle of the cone, correct to the

    asked by jolomi
  228. math

    what sum will amount to rs 1116 in 4 years at 6%p.a.?

    asked by vaidehi
  229. chemistry

    how do I determine the total charge of Asn-Tyr-Asp with a pH 7.4

    asked by meghan
  230. math

    in what time a certain sum will become 3 1/4 time at 5%?

    asked by vaidehi
  231. epidemiology

    Let’s say you are a health policy expert and you are sitting in your office and you receive a phone call from a news reporter. The reporter asks you to comment for a story she is writing. She has learned from the chief of neurosurgery at Cooper

    asked by sara
  232. math

    at what rate of interest a certain sum will be doubled in 8 year?

    asked by vaidehi
  233. math

    a man walks a distance 2 1/2 km in 30 minutes what is his speed in km/hours?

    asked by vaidehi
  234. math

    Factor the following polynomials. (1 point each) 9. 3x2 – 12 10. 5x3y + 35x2y + 45xy

    asked by Boobear
  235. Science

    Describe the geomorphic processes that shape the Earth’s surface. Use the Yosemite Valley to explain one or more of those processes.

    asked by Kristy
  236. Chemistry

    Describe how one would obtain the stated pure product from the following mixtures and assume that this cannot be achieved simply by distillation of the original mixture: 1. benzoic acid from a mixture with ammonium benzoate 2. phenylamine from a mixture

    asked by Matt