Questions Asked on
March 11, 2016

  1. Physics

    A pool ball of mass 100g and velocity [5,-4]m/s collides with a stationary pool ball of the same mass. After the collision, the pool balls have velocites [2,-3]m/s and [3,-1]m/s. Is the collision elastic? Explain your answer.

    asked by Sam
  2. math

    A rectangular prism is 4.8 centimeters long, 16 centimeters wide, and 14 centimeters high. What is the surface area of the rectangular prism?

    asked by Anonymous
  3. math

    if -y =3, what does y=

    asked by Anonymous
  4. Algebra 2

    the gym charges 180$ for a yearly membership. there are currently 1000 members. for every 5$ increase the gym will lose 10 members. how much should the gym charge to maximize its revenue?

    asked by Jake
  5. US HISTORY *JUST NEED CHECKED*

    What foreign policy did the United States follow before entering World War 2? * Isolationsism Communism(MY ANSWER) Socialism Blitzkrieg Japan is a country made up of islands * True (MY ANSWER) False Why was Japan so interested in controlling the islands in

    asked by MSTV1112
  6. Math

    company will enclose a rectangular area of 12 comma 600 ft squared12,600 ft2 in the rear of its plant. One side will be bounded by the building and the other three sides by​ fencing, as shown to the right. If 320 ft320 ft of fencing will be​ used, what

    asked by Wael
  7. Inorganic Chemistry

    A researcher studying the nutritional value of a new candy places a 4.70-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.98 °C. If the heat capacity of the calorimeter is 39.80

    asked by Michael
  8. Inorganic Chemistry

    In a constant-pressure calorimeter, 70.0 mL of 0.340 M Ba(OH)2 was added to 70.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 22.00 °C to 26.63 °C. If the solution has the same density and specific heat as water

    asked by Michael
  9. chemistry

    calculate the mass of chlorine gas contained in a 5dm3 flask at 25degrees celsuis and 98kpa pressure.

    asked by sopuruchi
  10. math and science

    1500kg motor car was travelling at 36m\s comes to rest over a distance of 40m.calculate. {a}retardation. {b}an average force that brings the car to rest

    asked by prisca
  11. Inorganic Chemistry

    In a constant-pressure calorimeter, 70.0 mL of 0.340 M Ba(OH)2 was added to 70.0 mL of 0.680 M HCl. The reaction caused the temperature of the solution to rise from 22.00 °C to 26.63 °C. If the solution has the same density and specific heat as water

    asked by Michael
  12. Math

    A woman bought some 13 cent stamps and some 8 cent stamps at the posg office. She spent exactly 1 dollar. How many of each stamp could she have bought?

    asked by Joe
  13. maths

    300 mens were engaged to complete a job in a certain number of days. but due to another assignment 15 men dropped the 2nd day, 15 more men dropped the 3rd day and so on.it takes 15 more days to finish the work now. find the number of days in which the work

    asked by hawwa
  14. maths

    ria took a wire of length 44cm and bend it into a shape of circle find the radius of that circle also find its area if the same wire is bent into the shaape of square what will be the length of each of its side which figure enclose more area

    asked by abha
  15. MATH

    In Triangle ABC, medians BE and CD are produced respectively to points X and Y such that CD=DX and BE=EY as shown in the figure. Show that the points X, A and Y are collinear. Also show that A is the mid point of XY

    asked by PRIYA
  16. Enrichment

    How does the Bhutan-China treaty(about the border dispute) affect the world? Please Help!

    asked by CiCi
  17. chemistry

    At 25 °C, the density of a 60.0% (m/m) solution of sucrose, C12H22O11, in water is 1.29 g/mL. What is the molarity of this solution?

    asked by Anonymous
  18. life orientation

    Propose 6 practical actions that you can take to address human rights violations of xenophobia in your community

    asked by kyle
  19. math

    Jonah has $50,000 in a savings account that earns 10.6% annually. The interest is not compounded. How much will he have in 6 months?

    asked by Anonymous
  20. Check answers?

    Your elbow and knee are examples of ligaments. joints.**** cartilage. angles. The muscular system allows our bones to strengthen. contract. lengthen. move.**** This muscle helps to transport blood to and from the heart. smooth muscle cardiac muscle****

    asked by MsHemmoPenguin
  21. body system

    7.)During the exchange of air in your lungs, your body seeks to keep oxygen and release ____________which will then exit your body A.)Microorganisms B.)Carbon Dioxide C.)Plasma D.)

    asked by #FreeGucci
  22. Chemistry- DrBob222

    Please check. Oxygen (O2) is about 20% of our air, with about 80% nitrogen and a bunch of minor components. In Colorado Springs, where I grew up, the elevation is ~ 6500 feet and atmospheric pressure is only around 9 psi (vs. 14.7 psi at sea level). Under

    asked by Student
  23. Chemistry

    A calorimeter contains 30.0 mL of water at 15.0 C. When 1.50 g of X (a substance with a molar mas of 46.0g/ mol is added, it dissolves via the reaction X (s) + H2O (l) ----> X (aq) and the temperature of the solution increases to 26.5 C. Calculate the

    asked by Student
  24. math

    The length of a rectangle is three more than twice its width. Its perimeter is 24 inches. Find its dimensions​ length and​ width.

    asked by Ken
  25. physics

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

    asked by please help
  26. health

    Muscles that move the leg are located in the ________ region. A. Thigh B. Hip C. Back D. Foot B?

    asked by Martin1162
  27. Geometry

    A triangular pyramid is defined by the points .The pyramid is then reflected over the xz-plane. The reflected image is then translated 3 units back, 2 units left, and 4 units up. Write the general rule you use for the reflection. Show the results of your

    asked by Jessica
  28. Art Please Ms.Sue Help

    1.How do landscape paintings convey the values and ideas of Chinese culture? A.Landscape paintings show chaotic, unhappy culture. B.Landscape paintings reveal the importance of natural history to the Chinese. C.Landscape paintings show that Chinese desire

    asked by Student
  29. health

    What is the primary function of the skeletal muscle? A. Heating the body B. Pumping blood to the rest of the body C. Protecting the body from harm D. Contraction C?

    asked by Martin1162
  30. Chemistry

    Oxygen (O2) is about 20% of our air, with about 80% nitrogen and a bunch of minor components. In Colorado Springs, where I grew up, the elevation is ~ 6500 feet and atmospheric pressure is only around 9 psi (vs. 14.7 psi at sea level). Under those

    asked by Student
  31. Geometry(so lost)

    Given ∆ABC≅∆PQR,m (angle)B=3v+4,and m(angle)Q=8v-6,find m(angle)B and m(angle)Q (quick question: what would be the symbol for "angle" on here?) How do I solve this???? STEP-BY-STEP would be amazing! Thank you.

    asked by Mirabella♥
  32. health

    Approximately________ of the total blood volume is in the veins at any given time. A. 30% B. 50% C. 70% D. 90% C?

    asked by Martin1162
  33. Art Please Ms.Sue

    Which two cultures use creatures to protect or transport humans after death? America (bald eagle) and Spain (bull) Egypt (the animal-headed sons of Horus) and China (the dragon)***** Egypt (the jackal) and China (the lion) Mayans (the crow) and Greeks (the

    asked by Student
  34. health

    The cardiovascular system is also known as the ________. A. Blood pathway system B. Heart gateway system C. Circulatory system D. Vascular crossings system A?

    asked by Martin1162
  35. health

    The heart is a _____ that provides the force necessary to circulate the blood to all the tissues in the body. A. skeletal pump B. autonomous pump C. muscular pump D. systemic pump C?

    asked by Martin1162
  36. health

    The brain is divided into the _______. A. Cerebrum and cerebellum only B. Cerebellum and brain stem only C. Brain stem, cerebrum and diencephalons only D. Brain stem, cerebellum, cerebrum and diencephalons D?

    asked by Martin1162
  37. 2nd grade math

    7+5=8+ What number makes this equation true

    asked by Milan
  38. Are all math answers correct?

    1. What are all the possibly ways to classify a rectangle? A. quadrilateral, parallelogram, rectangle *** ?? B. parallelogram, rectangle (Or this…) C. quadrilateral, rectangle 2. Which property is not a characteristic of a parallelogram? A. Opposite

    asked by Petra
  39. World History 6th Grade Ancient China NEED HELP!!!

    Why did the ancient Chinese drink tea?

    asked by Aelia
  40. math

    Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourthsx − 7 y = four fifthsx + 7 y = three over twox + 7 y = two thirdsx − 7

    asked by kaitlyn
  41. Math

    Sally has a bag of marbles. She has 3 different colored marbles in her bag – orange, black, and purple. If the probability of getting orange is 3/10 and the probability of black is 1/5. What is the probability of getting purple? Explain your reasoning.

    asked by Louise
  42. math

    draws a card from a standard deck of 52 cards. She replaces the card and draws a second card. What is the probability that she draws a heart and then a spade?

    asked by y
  43. political science

    In the "Campaigns and Elections By the Numbers" box, the book lists the number of people that filed to run for President. It says 167 filed as Republicans, 83 filed as Democrats, and 1 filed under the _______ Party. A.Libertarian B.Green C.Jedi D.Vulcan

    asked by ryan
  44. Yo please answer this!

    Order these from least to greatest importance. Tea and Clock and Silk making and Porcelain and Gunpowder

    asked by Aelia
  45. Biology

    Why do we use dna primer for PCR but RNA primer for dna polymerase in cells

    asked by asdasdfasdf
  46. political science

    the Presidential Campaign has three phases. What is the second phase? A.General Election B.Declaring Candidacy C.Party Conventions D. Nominating Process

    asked by ryan
  47. political science

    I have no clue on this one!!!! Bill Clinton's focus on domestic issues, what was NOT part of his "E2M2" campaign? A.Medicare B.Economy C.Education D.Energy

    asked by ryan
  48. chem

    The heat of combustion of methane is 213 kcal/mol. How many kcal of energy are released when 22.5 moles of CH4 burns in an excess of oxygen gas?

    asked by banana
  49. History

    1.)Which best describes the purpose of the Electoral College in the United States? A.)chooses the winner of an election if the popular vote is disputed B.)reduces the number of smear campaigns among candidates C.)publishes the results from each state’s

    asked by #FreeGucci
  50. Statistics

    In testing a new drug, researchers found that 20% of all patients using it will have a mild side effect. A random sample of 25 patients using the drug is selected. Find the mean and standard deviation of patients having a mild side effect. Mean = np =

    asked by Ray
  51. Science

    1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery

    asked by Tessa
  52. History

    W4.)which section of Andrew Jackson’s inaugural address best proves that he supported the rights of state governments? A. 1 B. 2** C. 3 D. 4 b

    asked by #FreeGucci
  53. History

    2.)Andrew Jackson did not support a. limited national government b. spreading of slavery to the frontier c. federal funds for internal improvements d. a strict interpretation of the U.S. Constituti c

    asked by #FreeGucci
  54. chemestry

    A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of 0.157g of the compound produced 0.123g carbon dioxide and 0.0310g water. In another experiment, it is found that 0.103g of the compound produces 0.0230g ammonia. What is the

    asked by salz
  55. political science

    Before President Obama, when was the last time a Senator successfully ran for President? A.1824 B.1960 C.Obama was the first Senator to ever win D.1910

    asked by ryan
  56. Chemistry-DrBob222

    I know I pored this already, but I for it to mention the assumption. See below. A calorimeter contains 30.0 mL of water at 15.0 C. When 1.50 g of X (a substance with a molar mas of 46.0g/ mol is added, it dissolves via the reaction X (s) + H2O (l) ----> X

    asked by Student
  57. History

    4.)which section of Andrew Jackson’s inaugural address best proves that he supported the rights of state governments? A. 1 B. 2*** C. 3 D. 4 B?

    asked by #FreeGucci
  58. math

    Analyze It Questions: 1. Since the purpose of an ice cube is to keep a drink cold, is it better for an ice cube to have a high volume or a low volume? Why? (At least 3 sentences.) 2. Since heat touching the surface of an ice cube causes it to melt, is it

    asked by cheyann
  59. Science

    1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery If anyone would help me that would be great, websites, answers, anything at all.

    asked by Alec
  60. math/geometry PLEASE HELP ME!

    Find the measure of the complement and the supplement of an angle with measure 50 degrees A. complement, 130 degrees; supplement, 40 degrees B. complement, 40 degrees; supplement, 40 degrees

    asked by keykat
  61. Art

    setting up a photograph to control the lighting, the subjects position, and the angle of the photograph is an example of which artistic technique A.) improvisation •• B.) staging C.) photo editing d.) cropping

    asked by Help!
  62. Art

    in order to capture a rare moment on film, a photographer must most importantly possess which compositional skill? Gentleness Wisdom Enthusiasm Patience••

    asked by Help!
  63. Algebra

    factor a^2+10a+24 t^2+4t-45

    asked by Will
  64. Algebra

    Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 6 inches wide, 2 inches high, and 12 feet long can support a

    asked by Marie
  65. Art

    how has the availability of a camera phone allowed the average citizen to help news outlets? A. Citizens can take over resporting responsibility via Camera photo B. Citizens can take photos that are more accurate than the avetage photojournalist C.

    asked by Help!
  66. math

    3. How does increasing the size of an object affect its volume to surface area ratio?

    asked by cheyann
  67. English Essay

    Ms Sue can u check my essay! Topic sentence: Getting a job as a nursing assistant involved several important steps Getting a job as a nursing assistant involves several important steps. First, I researched the facility for the the interview through their

    asked by Briana
  68. math

    a baseball field has four bases that form the shape of a quadrilateral. If someone invented a new game similar to baseball that had an extra base in the field, what type of polygon would the bases form? A. pentagon

    asked by keykat
  69. Please help

    imagery, connotation, and denotation. explain how poets use these elements to contribute to tone in a poem

    asked by Anonymous
  70. Health

    A respiratory disorder in which the bronchi become inflamed and thick mucus in produced is called Asthma** Bronchitis Cancer Addiction Let me know if I'm right or wrong. Thanks

    asked by Tyler
  71. math

    5x-4y=-7 3x-3y=-21 (linear combination method)

    asked by Jas
  72. Physical education

    the male reproductive cells are called 1. ova**** 2. teste 3 sperm 4 ovaries

    asked by seahawks
  73. Art

    which member of an advertising team would most likely study date to learn more about the target audience? Graphic designer illustrator Photographer Artistic director ••

    asked by Help!
  74. Science

    water is a(n) factor in all ecosystems that all living things requires?

    asked by ......
  75. Math

    Differentiate 2 pie r .i.e circumference of a circle

    asked by Afeez
  76. Science

    2.Why are biologists concerned about ecosystem disruption? 1.Explain the process of succession. Succession is a natural change in the area that results in one group of plants replacing a group before. for #1 that is all I have so if you could give me a

    asked by Katherine P
  77. math please be honest

    similar poligons are ___ different shapes. A. always B. sometimes

    asked by heidi/KeyKat
  78. french

    in French how do you say which i really liked

    asked by french
  79. math

    which pair of transformations to the figure shown below would produce an image that is on top of the original A. a translation to the right and a reflection over the vertical line of reflection shown. B. a translation down and a reflection over the

    asked by heidi/KeyKat
  80. french

    sometimes in french

    asked by HELP
  81. Math

    Suppose that the number of cars manufactured at an automobile plant varies jointly as the number of workers and the time they work. If 340 workers can produce 204 cars in 4 hours, find the number of workers that can produce 180 cars in 3 hours.

    asked by Anonymous
  82. Chemistry

    Is the same reactant always the limiting reactant?

    asked by Anonymous
  83. math

    Solve using the addition and multiplication principles. 6minus−6x less than or equals¡Ü 4minus−5x what is the solution set

    asked by art institute
  84. math

    which pair of transformations to the figure shown below would produce an image that is on top of the original A. a translation to the right and a reflection over the vertical line of reflection shown. B. a translation down and a reflection over the

    asked by KeyKat
  85. Mathematics

    Suppose that the maximum weight that a certain type of rectangular beam can support varies inversely as its length and jointly as its width and the square of its height. Suppose also that a beam 4 inches wide, 3 inches high, and 18 feet long can support a

    asked by Anonymous
  86. World History

    What was the purpose of porcelain to the ancient Chinese yo?

    asked by Aeliayo
  87. Math

    Andrew and Daniel recently took part in a marathon. After they had finished, they noticed that Andrew finished ahead of twice as many runners as finished ahead of Daniel, and that Daniel finished ahead of 1.5 times as many runners as finished ahead of

    asked by Amitabha
  88. math

    a new statue with a circular base is being unveiled. The statue's base has a radius of 8 ft. What is the area of the base? Round to the nearest whole number. Use 3.14 for p.

    asked by todd
  89. General Chemistry

    Carbonic acid forms when carbon dioxide dissolves in water. A typical can of soda contains a 0.120 M solution of CO2. Assuming that all dissolved CO2 is present as carbonic acid, and that no other substances dissolved in solution affect the pH, what is the

    asked by Erik
  90. Algebra

    The force needed to keep a car from skidding on a curve varies inversely as the radius of the curve and jointly as the weight of the car and the square of the car's speed.Suppose that 400 pounds of force keeps a 1600-pound car from skidding on a curve of

    asked by Lisa
  91. Math

    An object is launched at 9.8 meters per second from a 73.5-meter tall platform. The object's height s (in meters) after t seconds is given by the equation s(t)= -4.9t(-4.9t) - 9.8t = 73.5. When does the object strike the ground? I can't figure out how to

    asked by Joe
  92. English

    Choose the sentence that contains no comma errors. A) The book, that I borrowed from Elizabeth last week was excellent. B) About four thousand years ago, Stonehenge, was a center of worship. C) Alice Jones lived at 15, Cedar Street NE, Colorado Springs

    asked by Marc
  93. Math

    Can a triangle be formed with angles having measures of 10°, 60°, and 30°? Explain

    asked by Anonymous
  94. Math

    What cross sections might you see when a plane intersects a sphere that you would not see when a plane intersects pyramid or a prism?

    asked by Anonymous
  95. Math

    Melanie wants to put ribbon around the circumference of a circular section of the city park. Ribbon comes in rolls of 40 feet. The radius of the section of the park is 100 feet. How many rolls of ribbon should Melanie buy? Equation for circumference:

    asked by Anonymous
  96. math

    A stained glass window is shaped like a semicircle. The bottom edge of the window is 36 inches long. What is the area of the stained glass window? Round your answer to the nearest hundredth. (2 pt) Draw and label the window: Answer: _____________

    asked by Anonymous
  97. Chemistry

    Can you determine the limiting reactant just by comparing the masses of the reactants?

    asked by Anonymous
  98. Math

    A bakery offers a small circular cake with a diameter of 8 inches. It also offers a large circular cake with a diameter of 24 inches. Does the top of the large cake have three times the area of that of the small cake? If not, how much greater is its area?

    asked by Anonymous
  99. English

    After the basketball game the students had a dance at the school. . How should the sentence be correctly punctuated? A) Add a comma after game. B) Add a comma after dance. Reactivate C) Change the period to a question mark. Reactivate D) Add an apostrophe

    asked by Marc
  100. English

    To forget them, to pass lightly over their wrongs, and to chime in with the popular theme, would be treason most scandalous. . . Which word is most similar to how chime in is used here? Agree Create Harmonize Resound I have no idea because chime in- means

    asked by Henry
  101. Math

    Suppose that the amount of time it takes to build a highway varies directly with the length of the highway and inversely with the number of workers. Suppose also that it takes 100 workers 6 weeks to build 4 miles of highway. How long will it take 160

    asked by Anonymous
  102. English

    I hear the mournful wail of millions, whose chains, heavy and grievous yesterday, are to-day rendered more intolerable by the jubilant shouts that reach them. Which definition of rendered is most likely suited for this line? Caused to be a certain nature

    asked by Henry
  103. Chemistry-DrBob222

    A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill the balls on both sides). My

    asked by Student
  104. Algebra

    Suppose that Y varies directly with X, and Y=16 when X=10. (a) Write a direct equation that relates X and Y Equation: (b) Find Y when X=15 Y=

    asked by Anonymous
  105. English

    Help I have to circle C if the sentences are an example of correct pronoun agreement and circle N if they are not 1. Those who saw the play told us he was impressed. C or N 2. After I walk two miles, my leg hurts. C or N 3. Before you take exam 4, you

    asked by Anonymous
  106. English

    How does the media create a single ideal body image that readers and viewers should aspire to? What is the effect of this image?

    asked by Anonymous
  107. Business math

    how long will it take 2,000 to grow to 3,000 if the interest rate used is 6% compounded semi-annually? answer to the nearest half-year. thank you!

    asked by sue
  108. English

    1. Put new sentences into the mailbox like in the example. 2. Put new sentences into the mailbox as in the example. ------------------ Which one do we have to use, 'like' or 'as'? 3. Put the proper be verb into each blank. 4. Put the proper be verb in each

    asked by rfvv
  109. English

    While Sara was traveling in England; she met an interesting old man. . Choose the answer that is the most effective substitute for the underlined part of the sentence. If no substitute is necessary, choose ‘Leave as is.’ A) in England. She met B) in

    asked by Marc
  110. English

    What is different in middle school compared with elementary school? In middle school, we wear a school uniform, we have different teachers for for each subject, and we don't stay with our homeroom teacher all day. ------------------------- Are the question

    asked by rfvv
  111. English

    How does the author arrange this passage? A) He uses dialogue in the first half to express the confusion over the phrase "Don't give up the ship." He uses a rhyming poem in the second half to explain the phrase's source. B) He uses dialogue in the first

    asked by Marc
  112. Chemistry-DrBob222

    A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill the balls on both sides). My

    asked by Nevaeh
  113. Science

    The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2(aq)+H2O(l) ⇌ C8H10N4O2H+(aq)+OH−(aq)

    asked by Anonymous
  114. Science ap chem

    For which of the following solutions must we consider the ionization of water when calculating the pH or pOH? (a) 3 × 10−8 M HNO3 (b) 0.10 g HCl in 1.0 L of solution (c) 0.00080 g NaOH in 0.50 L of solution (d) 1 × 10−7 M Ca(OH)2 (e) 0.0245 M KNO3

    asked by Anonymous
  115. English

    There are different teachers for each subject. --------------------- Q1. How do you pronounce "subject." In the second syllable, is it pronounced /i/ or/e/? Q2. What is the part of speech of 'for each subject'? Is it an adjective phrase or an advervial

    asked by rfvv
  116. English

    In Scotland and Northern Ireland, is the contracted form 'amn't' used? In a book, I read such a story? Is it right?

    asked by rfvv
  117. Physics

    A bomb is dropped from an airplane travelling horizontally with a speed of 300mph. If the airplane is 10000 ft above the ground, how far from the target must it be released? Use g = 32 ft/s.s Express your answer in miles.

    asked by Bentong
  118. Physics

    A motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal, with magnitude of 9 m/s. Find the motorcycle's position from the edge of the cliff afyer 0.5 s. Use g = 9.8 m/s.s

    asked by Bentong
  119. Physics

    A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the target? Use g = 32 ft/s.s

    asked by Ben
  120. English

    1. Middle school is the same. 2. Elementary school is the same. 3. Middle school is not the same as elementary school. 4. Middle school is different from elementary school. ------------------ In each sentence, Is 'same' an adjective or a pronoun? #3 is the

    asked by rfvv
  121. Statistics

    Suppose you draw a card from a deck (with replacement) 10 times in a row. What is the probability that you get exactly 3 hearts? Round your answer to 3 decimal places.

    asked by Sara
  122. Statistics

    In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 10% of the people in this sample had pinworm but the margin of error for the population estimate was too large. They want an estimate that is in error by no more than 1.5

    asked by Sara
  123. English

    1. This is my homeroom teacher, Mr. Seo. He is a Chinese letters teacher. He is very generous. 2. This is my homeroom teacher, Mr. Choe. He is a M.E. teacher. He is strict. 3. This is my homeroom teacher, Mr. Choe. He is a ME teache. He is strict. 4. This

    asked by rfvv
  124. Science

    When an object and screen are separate d by 1m distance. when a convex lens is place d at 30 cm from the object it forms a clear image then the image distance is?

    asked by Ravi
  125. Physics

    At a busy intersection a 1460-kg car traveling west with a speed of 12 m/s collides head-on with a minivan traveling east with a speed of 9.4 m/s. The cars stick together and move with an initial velocity of 1.5 m/s to the east after the collision. What is

    asked by Alana
  126. Math

    3^2 / 3 * 39% of 36 * 104 = ?

    asked by Valentinagettingmarriedtommorow
  127. physics

    a box of mass 10kg is at rest on a horizontal plane.a force of 20N is applied to it at 30 degrees to the plane.assuming there no frictional force between the box and the plane,calculate the acceleration of the box.

    asked by Misheck
  128. Math

    One number is 10 less than twice a second number.Find a pair of such numbers so that their product is as small as possible. x-10 2x 2x(x-10) 2x^2-20x -(-20/2(2))=5 2(5)^2-20(5) 50-100=-50 I think I am really lost

    asked by Barb
  129. English

    1. Wrie down your woriries and work in pairs to comfort/console each other by using the model dialogue in Part A. -------------- Can we use both verbs, comfort and console in this sentence? 2.I am worried about my brother who is into computer games. Why

    asked by rfvv
  130. Physics

    How much work does it take for the average person (Weight = 700 N) to climb a 10-story tall building (consider each story to be about 3 m)? What fraction is this of the energy in a typical candy bar? (Ecandy bar = 250 Calories and 1 Calorie = 4186 Joules)

    asked by Janiqua
  131. Math

    c/4-5=4 Pleaze help solve this Im really unsure.

    asked by LOVE
  132. Geography,history,maths,english,life orientation,s

    Is it possible to study meteorology among those subjects?

    asked by Hephney
  133. PHYSICS

    A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. How long after it is fired will the target be hit? Use g = 32 ft/s.s Express your answer in seconds.

    asked by Jhun Sanchez
  134. Science

    A ball thrown vertically upward has a speed of 5.0 m/s at a height of 3.0m. The mass of the ball is 1.2 kg. Find its mechanical energy

    asked by Karl
  135. English

    1. I'm worried about my new school. Why don't you join a club? Why don't you make new friends? Why don't you talk with your homeroom teacher? Why don't you talk with the school counselor? Why don't you talk with the counseling teacher? --------- Are they

    asked by rfvv
  136. Calculus

    Find the specific solution of the differential equation dy/dx = 4y/x^2 with condition y(−4) = e. y equals negative 1 minus 4 divided by x

    asked by nan
  137. Calculus

    The temperature of a pan of hot water varies according to Newton's Law of Cooling: dT/dt=-k(T-A), where T is the water temperature, A is the room temperature, and k is a positive constant. If the water cools from 90°C to 85°C in 1 minute at a room

    asked by nan
  138. Calculus

    The slope of the tangent line to a curve at any point (x, y) on the curve is x/y. What is the equation of the curve if (4, 1) is a point on the curve? x2 − y2 = 15 x2 + y2 = 15 x + y = 15

    asked by nan
  139. Calculus

    Which of the following is the general solution of the differential equation dy/dx = 2x/y? y2 = x2 + C y2 = 2x2 + C

    asked by nan
  140. Calculus

    Evaluate the Riemann sum for (x) = x3 − 6x, for 0 ≤ x ≤ 3 with six subintervals, taking the sample points, xi, to be the right endpoint of each interval and please explain, using a graph of f(x), what the Riemann sum represents. My cousin needs help

    asked by Adrianna
  141. Calculus

    Can someone help and express the given integral as the limit of a Riemann sum but do not evaluate: the integral from 0 to 3 of the quantity x cubed minus 6 times x, dx.

    asked by Sammy N.
  142. Calculus

    Hi it's me again I need help with this too and I promise to never use this site again! I feel so ashamed for asking :( Use the Fundamental Theorem to evaluate the integral from 0 to 3 of the quantity x cubed minus 6 times x, dx.The answer has to have the

    asked by Adrianna
  143. Maths-Geometry(Loci)

    A port has two radar stations at P and Q which are 20 km apart.The radar at P is set to a range of 20 km,whilst the radar at Q is set to a range of 15 km. a)draw a scale diagram to show the above information b)Shade the region in which a ship must be

    asked by Ragi
  144. Health

    1.) call 911 for A.) hypothermia *** B.) a muscle strain C.) a sprained ankle D.) a headache 2.) a joint that is twisted or overstressed and one or more of the bones that normally meet at that joint are displaced should be treated as a A.) sprain*** B.)

    asked by Anonymous
  145. Algebra

    One number is 10 less than twice a second number. Find a pair of such numbers so that their product is as small as possible. I came up with 15 and 5 and those are incorrect

    asked by Barb