Questions Asked on
September 27, 2010

  1. ELL class

    How do the varieties of standards available to teachers provide a focus on high expectations and the motivation needed to tailor instruction to meet the needs of the learner?

    asked by Laura
  2. College Chemistry

    The concentration of lead ions (Pb^2+) in a sample of polluted water that also contains nitrate ions (NO3) is determined by adding solid sodium sulfate (Na2SO4) to the sample of the water. Write the net ionic equation for the reaction. Do not forget to

    asked by KELLY
  3. GEN 200

    what does mapping mean

    asked by Laura
  4. business communications

    Complete the Audience-Focused Communication Matrix, located in Appendix B, using the following information: What communication channels are appropriate and why? What are some considerations you must keep in mind with the diversity of the audience? What can

    asked by Laura
  5. algebra

    5c+5d-8(7c-4d)

    asked by June-Lee
  6. cary collage

    "A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity reaches 0.65 m/s. The length of the incline is 1.6m. a) What is the acceleration of the block? b) What is

    asked by sahan
  7. hum 176

    5. How has the Internet changed the way many Americans consume information? Explain the importance and value of the availability of information on the Internet.

    asked by twilia
  8. Business Law

    What are the elements of a contract under common law? Explain what gaps in a contract can be filled by Article 2 of the UCC? What is the difference between a shipment and a destination contract in Article 2 of the UCC? Jason shipped a truckload of peaches

    asked by Juan
  9. College Chemistry

    Pb+NO3+Na2SO4-->?

    asked by KELLY
  10. Business Law

    What are the elements of a contract under common law? Explain what gaps in a contract can be filled by Article 2 of the UCC? What is the difference between a shipment and a destination contract in Article 2 of the UCC? Jason shipped a truckload of peaches

    asked by Juan
  11. College Chemistry

    How many milliliters of a 0.200M AgNO3 solution are required to preccipitate most of the Cl^- ions from a solution containing 0.855 g of NaCl?

    asked by KELLY
  12. Chemistry

    How many milliliters of .200 M AgNO3 solution are required to precipitate most of the Cl- from the solution containing .855 grams of NaCl

    asked by Aliana
  13. physics

    A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes?

    asked by flame
  14. Math

    Given a circle with chord AB and diameter CD, prove that triangle ABD is isosceles if AB is perpendicular to CD.

    asked by Peter
  15. Chemistry

    when is it appropriate to use gravity filtration and when to use vaccume filtration

    asked by christine
  16. religious studies

    Describe Purity Balls and explain their function within their own religious community. Also, discuss how this ritual fulfills the four functions of ritual (Four functions of ritual are: Orients participants to space & time; Connects participants to divine;

    asked by Boby
  17. Psychology - Sociology

    Hi , I am having a hard time understanding the following: Discursive Psychology\Social Representation and Attitude theory.Please can someone assist by explaining these approaches to me

    asked by Cathy
  18. physics

    A person walks 37.0◦ north of east for 5.00 km. Another person walks due north and due east to arrive at the same location. How large is the east component of this second path?

    asked by KDRAG
  19. math

    The education department of state is interested in funding an education assistance program for 12 year-old children whose intelligence quotients lie in the bottom 5% of the population. According to national data, the IQ's of the 12 year-old population are

    asked by lolli
  20. English

    1. I got close to the penguins. 2. I got closely to the penguins. (Are both OK? Can we use #2?)

    asked by rfvv
  21. English

    1. French needs learning difficulty. (Is this sentence grammatical?) 2. I have too many things to do. 3. I have so many things that I cannot do them. (Are both the same?)

    asked by rfvv
  22. college

    If a 0.5 -mL air bubble is persent in the tip of a buret, what error in 10-mL,20 m l and 40-mL samples will result if the air bubble is dislodged during the dispensing of the sample?

    asked by Anonymous
  23. math

    A particle moves in a vertical plane under gravity and an air resistance whose magnitude per unit mass is k times the speed of the particle, where k is a positive constant. The coordinates of the particle at time t, with respect to a horizontal axis Ox and

    asked by myralove
  24. 10th grade

    What would be the percentage composition of carbon in 10g sample of methane is?

    asked by Sibusiso
  25. ECONOMICS AND DEVELOPMENT

    Critically discuss various theory of underdevelopment.Is underdevelopment internally or external induced phenomenon.

    asked by BERNICE
  26. kwame nkrumah university , ghana

    the impact of the 3.5g technology on the computer and human production.its a project work and am supposed to present it in the next 24 hours .please help me.

    asked by opoku
  27. French III

    Can someone please explain to me the difference between the futur and the futur causitive(sp?)

    asked by Rebekah
  28. english

    Which world organisation is behind the 2010 World cup?

    asked by Mpho
  29. physics

    A tennis player aims to serve the ball horizontally when their racquet is 2.5 m above the ground. The distance from the player to the net is 15.0 m and the net is 0.9 m high (a) What is the minimum speed with which the ball must leave the racquet if it is

    asked by sue
  30. social studies

    three examples of asian women considered to be empowered. however, discuss why they cannot be considered empowered?

    asked by feb.k
  31. chemistry

    you have 23- grams sample of ethanol with a density of 0.7893g/ml what volume of ethanol do you have?

    asked by trice
  32. geometry

    A thin wire is formed into a rectangle with an area of 24 cm2. If it is reshaped so that the 6 cm side is 2 cm longer, how will the area change?

    asked by kelly
  33. English

    1. What is the temperature in Bangkok? - It is very high./It is low. 2. What is the temperature like in Bangkok? - It is high./ It is low. (Which one is right?)

    asked by rfvv
  34. Science

    Balanced chemical equation for the carbon monoxide gas for motor car engines combines with the oxygen gas in the air to produce carbo dioxide

    asked by Sibusiso
  35. Chemistry

    when is it appropriate to use gravity filtration and when to use vaccume filtration

    asked by christine
  36. Chemistry

    i need some help with my science homework it`s the chemistry GCSE core:C2 TASK SHEET i need to design a leaflet explaining how to extract gold aluminium and iron. the words i need to include are anode,bauxite,carbon,carbon dioxide

    asked by Saphire
  37. 6th grade social studies

    unscramble artiotinm

    asked by ana
  38. calculus

    f(x)=x8+7x2+613(x−1)2(x+6)6

    asked by joanna
  39. physics

    A ball is launched from the ground at a 45 degree angle above the horizontal (which we take to be the x-axis). It rises to a maximum height, falls back down to the ground and bounces. After the bounce its velocity again makes a 45◦ angle to the

    asked by Anonymous
  40. English

    Here are some sentences on Conrad I'd like you to check grammatically. Thank you. 1) The “frame” is provided by an anonymous narrator, who on board the Nellie on the Thames introduces Marlow and formally closes the narrative. 2)The effect is one of a

    asked by Franco
  41. calculus

    A ball is dropped from the same height, but 20 feet away from the side of the building. The height y of the ball at time t is given by y(t) = 64 − 16t2. How fast is the shadow of the ball moving along the ground after 1 second?

    asked by Anonymous
  42. math

    COMPLETE THE TABLE FOR X AND y. (1,8), (2,14), (3,?), (?,24), (?,28). WHAT IS THE PATTERN FOR THE X AND Y INPUTS. WHAT IS THE RULE?

    asked by patricia
  43. English

    When I got close to the penguins, I had to cover my nose. Surprisingly, they smelled terrible. (What is part of speech of 'close' in the sentence? Is it an adjective or an adverb?)

    asked by rfvv
  44. English

    1. You look with your eyes. 2. You smell with your nose. 3. You taste with your tongue. 4. You hear sound with your ears. 5. You feel with your ________. (Are the sentences all grammatical? What words would be suitable for the blank?)

    asked by rfvv
  45. physics

    A flare is fired at an angle of 35 degrees to hit the ground at an initial speed of 250 m/s. How long dies it take for the flare to reach its maximum altitude?

    asked by Anonymous
  46. spanish

    Mi padre(despertarse) a las siete.

    asked by Jesicca
  47. English

    What are the two topic sentences of this paragraph? “As I was sewing the top of the pillow, my grandmother mumbled along, her frail voice faltering as she gasped for breath in between disjointed sentences and phrases. She explained the reason for all her

    asked by Kathleen
  48. Marketing

    Describe how companies have used marketing data to target your wants and needs?

    asked by Alicia
  49. chemistry

    Compute the empty cells. Consider PTN conditions (For SO2, NO, NO2, and C5H8 express the mass concentration in Kg S m-3, Kg N m-3, Kg C m-3, respectively). Gas/Unit mg m-3 molecules ppm ppb cm-3 % O3 180 SO2 4.0 x 1015 NO 60 NO2 10 NOx CO 30 C5H8 6

    asked by lanre
  50. Physics

    A 4.3 kg particle starts from rest and moves a distance of 3.6 m in 2.5 s under the action of a single, constant force. Find the magnitude of the force. Answer in units of N.

    asked by Wendia
  51. Physics

    A 3.3 kg block initially at rest is pulled to the right along a horizontal, frictionless surface by a constant, horizontal force of 14.8 N. Find the speed of the block after it has moved 3.2 m. Answer in units of m/s.

    asked by Wendia
  52. Physics

    A basketball player 2.08 m tall wants to make a basket from a distance of 16 m. The hoop is at a height of 3.05 m. The acceleration of gravity is 9.8 m/s2 . Neglect air friction. 2.08 m 3.05 m 16 m v0 40.7◦ If he shoots the ball (from a height of 2.08 m)

    asked by Wendia
  53. Physics

    A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 207 m. Traffic is moving along the highway at 42 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow

    asked by Lance
  54. Chemistry

    How many milliliters of a 0.200M AgNO3 solution are required to preccipitate most of the Cl^- ions from a solution containing 0.855 g of NaCl?

    asked by Aliana
  55. 12th grade

    how to calculate the mole fraction to hexan. Thanks

    asked by Jan
  56. eng.

    Type a character sketch of a fictional Southern Gentleman named Alphonzo Carteret.

    asked by Ariel
  57. Spanish

    I have a question-I need to compare Spanish nouns in the singular versus plural to English. I know to make it plural in Spanish- I add s to a noun ending in a vowel and es if it is a consonant but I don't know how to actually put the comparison between the

    asked by BethAnne
  58. italian

    i need an essay in italian about the shopping mania.please help me

    asked by julia
  59. accounting

    Which of the following is accounted for as a change in accounting principle?

    asked by Anonymous
  60. us history

    explain the arguments of Alfred Mahan, Henry Cabot Lodge, and Albert Beveridge regarding expansionism?

    asked by Shaylynn
  61. 8th grade Math

    Put the following numbers in order from least to greatest. 0.0875, 7/8, 0.875%

    asked by Elizabeth
  62. chemistry

    Ba Ba2+

    asked by help seriously
  63. chemistry

    Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic weight of copper to determine the mass of the other copper isotope.

    asked by NEED HELP
  64. chemistry

    Type your answer using the format [NH4]+ for NH4+, [Ni(CN)4]2- for Ni(CN)42-, and 3e- for 3e-.) Ba Ba2+ +

    asked by help seriously
  65. chemistry

    Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a natural abundance of 3.10%. Calculate the

    asked by NEED HELP
  66. chemistry

    Silver has two naturally occurring isotopes (Ag-107 and Ag-109). (a) Use the periodic table to find the atomic mass of silver. (b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109? (c) If the mass of Ag-107 is 106.905,

    asked by NEED HELP
  67. Chemistry

    What is the chemical equation for white flour? Thanks!

    asked by bob
  68. english

    What are the two topic sentences of this paragraph? “As I was sewing the top of the pillow, my grandmother mumbled along, her frail voice faltering as she gasped for breath in between disjointed sentences and phrases. She explained the reason for all her

    asked by Kathleen
  69. science

    why is aluminium cheaper to extract than gold??? thankyou****

    asked by Helena****
  70. chemistry

    Predict how many electrons will most likely be gained or lost by each of the following elements. (a) Se Will it gain or lose electrons? gain lose number of electrons (b) Cl Will it gain or lose electrons? gain lose number of electrons (c) Al Will it gain

    asked by NEED HELP
  71. physics

    if co-efficient of friction between tyre and road is 0.5, what is smallest radious at which car turn on a horizontal road when its speed is 30 km/hr? 2.Q calculate angular speed of how hand of a clock? 3.Q A what angle must cut rack with a bend of 250m

    asked by vishal
  72. bobpursley -science

    sorry my question is explain simply why aluminium is cheaper than gold with reference with the reactivity series. thanks again for your help

    asked by Helena****
  73. physics

    a wheel having diameter 2m starts from rest and accelerates uniformly to an angular velocity of 75 revoulutions per minute in 5s. calculate its angular acceleration? Q;- one of the rectangular components of velocity of 80km/hr find other component? Q:-the

    asked by vishal
  74. Software - Excel

    Hi, Im doing my maths coursework andI need to type in a formula and press enter and then I need "FILL DOWN (CTRL D)". How do I do this? I don't want to get the same number from what Ive alreay typed in on the previous cell, I just want that formula to

    asked by Brogan
  75. physics

    Standing on top of the science building, which is 48 m high, a group of students use a slingshot to shoot a steel ball bearing straight up into the air. The ball bearing passes the students on its way down to the ground 3.2 sec after it was shot. (once the

    asked by karla
  76. Physics

    A ball is tossed straight up into the air with an initial velocity of +15 m/s and at a height (from where it leaves the thrower's hand) of 2.0 m off the ground. Once the ball leaves the thrower's hand, it accelerates at -9.8m/s/s. a) How much does it take

    asked by Sam
  77. math

    Set A contains the element 1. What other whole numbers must be in set A for it to be closed under addition?

    asked by Geena
  78. English

    Write a description of a trip or complicated journey which you or someone in your family recently made.

    asked by Ania
  79. statistics

    12) The regression equation Credits = 15.4 - .07 Work was fitted from a sample of 21 statistics students. Credits is the number of college credits taken and Work is the number of hours worked per week at an outside job. A) Interpret the slope. B) Is the

    asked by kim
  80. Math

    which of the following properties hold for subtraction of whole numbers? A. Closure property B. Associative property C. commutative property D. identity property

    asked by Devan
  81. Chemistry

    I am looking for a systematic way to balance chemical equations, instead of doing them by hand. Can someone help me understand the table in the How Does It Work? section at tinyurl dot com/28mngtt

    asked by Gray
  82. Math

    Where do I inerst parenthesis to make the following statement true: 56 divided by 3 +4 x 1 + 2 =24

    asked by Lori
  83. chemistry

    "What effect does doubling (S2O8)^2- have on the rate?" I don't understand that question. Could you please explain it?

    asked by Kimberky
  84. English 2

    Can I please get some information about how cell phones have changed us socially? I have to write a research paper on this and I don't even know where to begin. Thanks -MC

    asked by mysterychicken
  85. Science - biology - university

    A couple where both the man and woman are albino decided to have children. Remember that albinism is inherited as a rare autosomal recessive trait. To their surprise their first child had normal skin pigmentation. They eventually have two more children and

    asked by Axel
  86. geometry

    a pyramid has a square base that measures 3 feet on each side. the height of the pyramid is 19 inches. what is the volume?

    asked by margo
  87. 9th grade

    I don't get this at all please help Density problems

    asked by Jeraven
  88. financial acct

    how will I journalize this transaction? Rented a backhoe to Mission Landscaping at a price of $250 per day, to be paid when the backhoe is returned. Mission Landscaping expects to keep the backhoe for about two or three weeks

    asked by sha
  89. Math

    (a) In 2000 a club has 40 members who each pay $120 annual subscription. What is the total income from subscriptions? (b) In 2001 the subscription is increased by 35% abd the membership increases to 65. (i) What is the original subscription? (ii) What is

    asked by AJ
  90. math

    evaluate the following when x=-3, if possible /x/ -x^2 -(1+x)

    asked by Anonymous
  91. physics

    You ride your bike for 1.9 h at an average velocity of 10 km/h, then for 30 min at 11 km/h. What is your average velocity?

    asked by Uber confused
  92. MECHANICS

    17. In which of the following units is acceleration expressed?

    asked by Anonymous
  93. PRACTICAL ENGLISH

    In the following sentence, identify the part of speech of the italicized word. Large fish swim swiftly in the sea. A. Pronoun B. Adjective C. Noun D. Adverb

    asked by JAYZ
  94. Earth and Space Science

    Clouds form primarily at the boundary between a)the stratosphere and mesosphere b)the mesosphere and ionosphere c)the troposphere and mesosphere d)the troposphere and stratosphere e)the hydrosphere and troposphere

    asked by Lillie
  95. chemistry

    The first-order reaction, SO2Cl2 ¨ SO2 + Cl2, has a rate constant equal to 2.20 ~ 10-5 s-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 6.00 hours?

    asked by JOSEPH
  96. CHEMISTRY

    The first-order reaction, SO2Cl2 ¨ SO2 + Cl2, has a rate constant equal to 2.20 ~ 10-5 s-1 at 593 K. What percentage of the initial amount of SO2Cl2 will remain after 6.00 hours?

    asked by JOSEPH
  97. physics

    A diver running 2.4 m/s dives out horizontally from the edge of a vertical cliff and 2.6 s later reaches the water below. How high was the cliff?

    asked by Katie
  98. physics

    S.O.S!!! In terms of saving energy, bicycling and walking are far more efficient means of transportation than is travel by automobile. For example, when riding at 15.0 mi/h, a cyclist uses food energy at a rate of about 400 kcal/h above what he would use

    asked by Frankie
  99. business

    Which of the following sentence contain a fragment?A)To prepare for the 10K race B)Eric eliminated greasy foods from his diet and began eating fresh fruits and vegetables.C)He also began getting at least eight hours of sleep every night.D)Correct

    asked by Anonymous
  100. Physics

    If a soccer ball is kicked at 11.5 m/s at an angle of 41 degrees above horizontal, what is the ball's maximum range?

    asked by K
  101. Quick ?

    I doing a sample lesson plan for my english class. I want to show a movie that realtes to the book that were reading and the movie is 106 minutes. I teach each class for 50 minutes a day. How many days would it take to finish the movie and how long is 106

    asked by Madison
  102. US Career Institute

    Chester has an appointment for a check-up on his asthma. He is wheezy and having labored breathing. His established physician performs an expanded problem focused exam and history. No further treatment is recommended. Chester is to return in three months

    asked by Luisa
  103. physics

    A house address sign is hung from a post with a light wieght rod. If the sign weighs 4.5 N, what is force in the chain? There is a 40 degrees.

    asked by diva
  104. History

    What are some of the characteristics Frederick Jackson Turner thought had been shaped by our frontier experience?

    asked by Mary
  105. math

    can i use the same multiplication fact to find 4*50 and 5*40? explain

    asked by joy
  106. English

    The acrobats performed an amazing BALANCING act. Is balancing an adjective in this sentence?

    asked by Kathleen
  107. maths proofs

    Take the numbers 4 and 7. If we square them we get 16 and 49, which added together becomes 65. If we add 4 and 7 together first and then square we get 121. The difference is 56. PROVE that there is a connection between the product of 4 and 7 and 56 FOR ANY

    asked by daz
  108. math

    Classify each of the following as a rational or irrational number (a)square root 2+8 (b)7/22 (c)3.14114111411114..

    asked by Anonymous
  109. math

    Convert each of the following fractions to decimals that either terminate or repeat (a)3/40 (b)2/13

    asked by Anonymous
  110. statistics

    3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different.

    asked by tanya
  111. math

    Which symbol belongs between each pair of numbers? , or = (a)11/23 and 33/65 (b)7/8 and 8/9 (c)-6/7 and -11/33 Hint (LCD)

    asked by Anonymous
  112. statistics

    3. Indicate whether the given statement could apply to a data set consisting of 1,000 values that are all different. a. The 29th percentile is greater than the 30th percentile. b. The median is greater than the first quartile. c. The third quartile is

    asked by tanya
  113. math

    Perform each of the following computations (a)1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 (b) (5 2/7 + 2 3/7)/ 2 1/2 (c) 3/2 - 4 1/3

    asked by Anonymous
  114. math

    Find each of the following (a)GCD (12, 26, 65) (b) LCM (12,26,65)

    asked by Anonymous
  115. math

    Determine whether each of the following numbers is prime or composite (a)219 (b)791 (c) 1001

    asked by Anonymous
  116. statistics

    1. For the following exercise, complete the following: a. Find the mean, median, and range for each of the two data sets. b. Find the standard deviation using the rule of thumb for each of the data sets. c. Compare the two sets and describe what you

    asked by trg
  117. phsics

    You plan to throw stones by using a sling of length 1.8 m which you whirl over your head. Suppose you wish to throw a stone a distance of 29 m. What must be the centripetal acceleration of the stone just before its release if it is to reach this distance?

    asked by help
  118. cpcc

    A frictionless plane is 10.0 m long and inclined at 33.0°. A sled starts at the bottom with an initial speed of 4.30 m/s up the incline. When the sled reaches the point at which it momentarily stops, a second sled is released from the top of the incline

    asked by thomas
  119. cpcc

    In Figure P4.30, m1 = 10.0 kg and m2 = 4.5 kg. The coefficient of static friction between m1 and the horizontal surface is 0.60 while the coefficient of kinetic friction is 0.30. Figure P4.30 (a) If the system is released from rest, what will its

    asked by thomas
  120. Physics

    I need to make a mousetrap car for my physics class. I have to make it so that it can stop, but I won't know at what distance until the testing day. How should I do it?

    asked by Heather
  121. phsics

    A coin with a diameter of 1.9 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 19 rad/s and rolls in a straight line without slipping. The rotation slows with an angular acceleration of magnitude 2.1

    asked by help
  122. College Chem

    How much heat (in kJ) is absorbed when 10.0mL of liquid ethanol vaporizes?

    asked by Logan
  123. Chemistry

    If 100.0 J are added to 20.0 grams of water at 30.0 degrees Celsius. What will be the final temperature?

    asked by Kris
  124. Science

    Does an ecosystem have a particular size?

    asked by Jim
  125. Math

    I need help with this problem. La'Tasha's band needs money to go to a national competition. So far, band members have raised $560,which is only one-third of what they need. What is the total amount needed?Write an equation then i'll solve it.

    asked by Ebony
  126. science

    How can you identify hydrogen, oxygen and carbon dioxide by their chemical properties?

    asked by Michaela
  127. 5th grade

    what does the statment mean. The properties of salts are different from the properties of the elements that go into making them mean?

    asked by madyson
  128. math

    why is 24,005 greater than 8,999

    asked by azir
  129. Chemistry

    If 100.0 J are added to 20.0 grams of water at 30.0 degrees Celsius. What will be the final temperature?

    asked by Kris
  130. Food and Nutrition

    List and explain any 10 differencies assiociated with poor nutrition

    asked by Aubrey
  131. 4th grade

    I spent $40.00 on a sweater and a shirt. The sweater cost $12.00 more than the shirt. How do I figure this out. I thought the answer was $28.00 but that is not right

    asked by Kiana
  132. math

    Complete to show how you can find the sum by making a ten, hundred, or thousand

    asked by nakoa page
  133. 9th grade

    An uknown substance from planet x has a density of 10g/ml.it occupies a volume of 80ml. what is the mass of this unknown substance

    asked by gasharee
  134. Physics

    A diver running 2.4 m/s dives out horizontally from the edge of a vertical cliff and 2.6 s later reaches the water below. The hieght of the cliff is 33 m. My question is: How far from its base did the diver hit the water?

    asked by Katie
  135. math

    if the area of a rectangle is 30 square centimeters and the length is 6 centimeters,use the equation 30=6w to find the width w of the rectangle.I don't understand what would be the correct answer I think my aswer doesn't look correct.

    asked by philena
  136. 9th grade

    An uknown substance from planet x has a density of 10g/ml.it occupies a volume of 80ml. what is the mass of this unknown substance

    asked by gasharee
  137. Physics

    A tiger leaps horizontally from a 5.8m -high rock with a speed of 3.6 m/s. How far from the base of the rock will she land?

    asked by Katie
  138. Chemistry

    A water solution containing 25.0% sucrose by mass, has a density of 1.25g/mL. What volume of this solution in liters, must be in an application requiring 2.50 KG of sucrose?

    asked by Kate
  139. Physics

    A shotputter throws the shot with an initial speed of 15.6 m/s at a 38.0 angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.15 m above the ground.

    asked by Katie
  140. Math homework

    What's -3.6- 22.2? How would I even solve this?

    asked by Annalisa
  141. Social Studies

    Which land masses lie mostly within low latitudes?

    asked by Khran
  142. math

    what is the simplest form of 5 over 12

    asked by naja
  143. English

    I am working on the flow chart for my English Assignment and I require some help. Task: Have to create a flow chart which shows the connections between the characters, events, and major ideas of Part One in reaction to Katniss the main character. I am not

    asked by Sara
  144. math

    use the distributive property to rewrite 6+2x as a product.

    asked by Rita
  145. Social Studies

    Based on latitude, which land masses are most likely to have temperate climates?

    asked by Khran
  146. chemistry

    Tungsten is a dense metal that is used to make the filaments in incandescent light bulbs. A piece of tungsten has a volume of 5.2 cubic centimeters and a mass of 100 grams. What is the density of tungsten?

    asked by Alex
  147. science

    what is ecrfenine unscrambled

    asked by matthew
  148. 4th grade science

    In classifying living things, what is the smallest group that has only one type of organism?

    asked by Ava
  149. math

    mrs.berg's kitchen is shaped like a square. The area of the kitchen is 56ft^2. What is the length of her kitchen,to the nearest hundreth?

    asked by philena
  150. physics

    A diver running 1.0 m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 2.8 s later. How high was the cliff and how far from its base did the diver hit the water?

    asked by shania
  151. math

    explain why 1734 is greater then 175

    asked by emily
  152. social studies

    what is the proclamation of 1763

    asked by Anonymous
  153. social studies

    i cant unscramble sartina

    asked by trey
  154. Math homework

    x= 3 y=8 x-y+3-8+2 =3+(-8)+2 =-5+2 =-3 Can someone explain to me why this is wrong? and help me correct it?

    asked by Annalisa
  155. english

    what is a journal and what is in it?

    asked by Cookie
  156. Math

    How to solve this (2x+5)/(x+1) > (x+1)/(x-1) and graph? I tried this and got (x+3)(x-2) and got -32 which isn't right the right answer is x

    asked by Amy~
  157. chemistry

    How much energy must be absorbed by 20.0g of water to increase its temp. from 283.0 C to 303.0 C? please i really need the answer step by step correctly thanks

    asked by kacey
  158. Science

    "Describe the role of gravity as the force that governs the movement of the solar system and the universe." I don't get it.

    asked by Joel
  159. chemistry

    A light green powder is heated in a test tube. A gas is given off, while the solid becomes black. In which classification of matter does the green powder belong? Explain your reasoning.

    asked by Kara
  160. English 2

    Need help with this-- 'Think about how you might update Antigone in a modern setting, either in the US, or in some other part of the world. What kind of figure would Creon be? Who would Antigone be? What would Creon's conflict with Antigone be about? Write

    asked by mysterychicken
  161. Orgo - recrytalization

    180mg of crude benzoic acid was recrystallized in an appropriate solvent, with a percent recovery of 67%. How much benzoic acid was recovered?

    asked by Julia
  162. algebra

    8>7n+1

    asked by mykayla
  163. math

    The expression px^4+qx^3+3x^2+2x+3 has r(x)=(x+1) when divided by x^3-3x+2.find the values of p and q.

    asked by Anonymous
  164. business

    Before writing a recommendation report to the CEO, Dee and Carlos distribute a survey to everyone in their company to determine which new benefits employees are most interested in. What part of the writing process does this activity represent? (a) Writing

    asked by Anonymous
  165. MATH

    Which term(s) describe(s) the system? 3x – 2y = 7 –9x + 6y = –10 dependent consistent and dependent consistent and independent inconsistent

    asked by NICK
  166. To Writeacher

    Task : Have to create a flow chart which shows the connections between the characters, events, and major ideas of Part One in reaction to Katniss the main character. I am not doing a flow chart on the whole book, it's just Part one I'm doing it on.

    asked by Sara
  167. Geometry

    The shape is a triangle with a line in the middle. How do I write an indirect proof with this information? triangle LMN . MP is down the middle Given: NP > LP Prove: MP is not a median

    asked by Anon.
  168. spanish

    where is the web page to translate spanish to english

    asked by katherine
  169. spanish

    how do you say 1,093

    asked by katherine
  170. Economics

    Why is price stability and full employment important to our economy?

    asked by Amber
  171. 6th grade

    List 7 ways that an atlas can helpus in social study ? Can't you help me with that question please

    asked by Maria felpine
  172. World History

    Describe the teachings and institutions of Confucianism Dadaism and legalism

    asked by Christina
  173. math

    tyrell says $750 is about $800. sara says $750 is about $700. who is correct? Explain.

    asked by sans
  174. English

    Can you help me with a sentences with the word manifest and ebb ?

    asked by shanna
  175. MATH

    A triangle with the vertices A(–3, 4), B(3, 1), and C(–1, –5) is dilated by a scale factor of 2. Find the coordinates of A', B', and C'.

    asked by NICK
  176. Ecology

    The experiment of Clausen, Keck and Hiesey discussed in lecture and illustrated in Fig. 4.4 of the textbook would be an example of a: a. common garden experiment b. reciprocal transplant experiment c. both of the above d. neither of the above Their

    asked by Tommy
  177. physics

    The leg and cast in the figure below weigh 260 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 125 N. Determine the weight w2 AND the angle α needed so that no force is exerted on the hip joint by the

    asked by K
  178. physics

    The leg and cast in the figure below weigh 260 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w1 weighs 125 N. Determine the weight w2 AND the angle α needed so that no force is exerted on the hip joint by the

    asked by K
  179. SCATTER PLOT

    this is gonna sound really stupid... but i'm making a scatter plot and i'm measuring height and distance (disatnce is affected by height) which one do i put on x axis?

    asked by NEEDSHELP(:
  180. chemistry

    what fraction of the total mass of an 56 Fe atom is due to the electrons? The mass of a proton is 1.673 x 10-24 g, of a neutron 1.675 x 10-24 g, an of an electron 9.109 x 10-28g.

    asked by ducky
  181. chemistry

    the total mass of a vehicle is due to 56 Fe, what mass of a 1.4 metric ton(tonne) automobile is due to the electrons?

    asked by ducky
  182. chemistry

    what experimental evidence led Thomson to conclude that cathode rays were negatively charge.

    asked by ducky
  183. math

    what is 15.999 rounded to the nearest tenth

    asked by macho
  184. business

    n which part of writing process is it most important to know the rules of grammar and punctuation?A)Planning B)Gathering C) Revising D) Editing. i think it is d

    asked by Anonymous
  185. algebra

    solve for r: I = prt

    asked by algebra
  186. business

    Distinguish between static budgets and flexible budgets. When are each an appropriate means of evaluating a manager’s performance and why?

    asked by Mark
  187. BIOLOGY

    What are the CELL MEMBRANE PROTEINS ? What are the functions of the CELL MEMBRANE PROTEINS ?

    asked by stacy
  188. grammar

    I'm supposed to identify subordinate clauses in the following questions and then label them as complement, adjunct or relative clauses. I'm lost, how can you tell the difference? Example: It would be tragic if you realized too late, as so many others do,

    asked by marie
  189. SOCIAL STUDIES

    I AM TRYING TO UNSCRAMBLE THESE LETTERS TO FIND AN ISLAND GROUP? HCRAITELAOG

    asked by ALEC
  190. Calculus

    Find the derivative of y = 4^2x.

    asked by Denise
  191. physics (SAT 2)

    A horse is pulling a canal boat at 12 degrees to the rope. Tension of the rope it 1150 newtons. The canal is moving at a steady speed. Calculate the resistive forces opposing the boats forward motion.

    asked by Char
  192. Social Studies

    I want to know Europe's relative location. Please help.

    asked by Chris
  193. math

    what is 33 and one third percent of 600

    asked by susan
  194. algebra

    how do I find the vertex y=(x+2)(x-1)

    asked by Tyriq
  195. Physics

    If a set of displacement vectors laid head to tail forms a closed polygon, the resultant is zero. Is this statement true? Explain your reasoning.

    asked by Anonymous
  196. Health care management

    I need a manager or administrator for a health care organization to assist me in the following: discuss the coordination of internal and external services. 1. Who are the key players? 2. How does coordination take place? 3. What activities or processes are

    asked by Angela
  197. Physics

    A student accurately uses the method for combining vectors. The two vectors she combines have magnitudes of 55 and 25 units. The answer that she gets is either 85, 20, or 55. Pick the correct answer, and explain.

    asked by Anonymous
  198. Teachers Aide/Language and other Barriers

    14. As a teacher aide in a multicultural classroom, you should realize that A. your teacher is the best resource for information on diversity-related information. B. it’s up to you to help improve children’s attitudes today, so we can have a better

    asked by AspiringTeacherandMotherofFour
  199. Spanish Check

    is this right? No es practica mirar television son doce horas por dia. Means: It's not practical to watch television twelve hours a day. Also it "mis padres" right?

    asked by Amy~
  200. Anatomy

    Macrophages eat bacteria by phagocytosis which is a type of endocytosis ; true or false

    asked by Chloe
  201. Math

    What is the rule for the pattern < < < # < < < # n + _______?

    asked by Holly
  202. home economics

    what is home economics? home economics is and education for better living,and its stufy deals with all aspects of family life.

    asked by sade
  203. us history

    How were the governors of the Pennsylvania colony chosen?

    asked by Lex
  204. Space Science

    Which objects in the solar system have been least modified since the formation of the solar system? a)asteroids b)Kuiper Belt objects c)meteoroids d)terrestrial planets e)jovian moons

    asked by Alice
  205. history

    how does central americas geography affect their economy?

    asked by wendy
  206. Math

    There are about 1.2 million people in the U.s who speak chinese. This is about 3 times the number of people who speak greek. How many people speak Greek?

    asked by Alexis
  207. physics

    The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I figured out the constant angular acceleration=1.71 rev/min2 but im not

    asked by help
  208. Chemistry

    Aluminum sulfate reacts with barium chloride to yield barium sulfate and aluminum chloride. What mass of barium sulfate is produced from 650 mL of 0.320 M of aluminum sulfate? Thank you.

    asked by Tara
  209. Chemistry

    What is the molarity of 550.0 mL of KOH solution, that reacts completely with 675 mL of a 0.450 M CrCl3 solution?

    asked by Tara
  210. Chemistry

    What volume of a 0.600 M solution of AgClO4 is needed to produce 160g of AgCr04?

    asked by Tara
  211. geology

    We determine the structure of the Earth's core using: a)deep mine shafts b)satellite imaging c)radar and sonar d)seismic wave data e)magnetic resonance imaging

    asked by Layla
  212. math

    The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?

    asked by Joe
  213. algebra

    What is the measure of angle X in the Triangle XYZ if the measure of angle X = x + 20, measure of angle Y = x + 30, and measure of angle Z = x + 40?

    asked by Anonymous
  214. World History

    explain the beliefs of Hinduism and its evolution from the aryans to the Guptas. WHO ARE THE ARYANS AND THE GUPTAS? please help :(

    asked by Christina
  215. US History

    1. Why were the colonists unhappy with the fact that their judges' salaries were paid by the king? 2. The Declaration was divided into 4 parts. Write down the first phrase of each of those four parts. Need help with these. Thanks -MC

    asked by mysterychicken
  216. math

    vicky scored 6 two point basket and 6 one point free throws. Li scored 6 three point basket. explain how you know each girl scored the same total?

    asked by asia
  217. MATH

    28. Chase Quinn wants to expand his cut-flower business. He has 12 additional acres on which he intends to plant lilies and gladioli. He can plant at most 7 acres of gladiolus bulbs and no more than 11 acres of lilies. In addition, the number of acres

    asked by NICK
  218. history

    The French and Indian war has also been called the "Great War for Empire". Explain why this may be an appropriate name for this war.

    asked by Maribel
  219. math

    The population of nevada is close to 1.6 million which is about 1/5 of Michigan's population. what is the estimated population of Michigan?

    asked by Joe
  220. Math

    Set A contains the element 1. What other whole numbers must be in set A for it to be closed under addition?

    asked by Geena
  221. grammar

    I have to answer dependent/independent clause or neither. The next question says "because of the pictures in them." I think the answer is neither because it is a phrase. Is this right? Thanks.

    asked by Sarah
  222. math- important

    use the prime factorization of each pair of numbers to identify three common factors and three common multiples. a) 14 and 84 (please show me how to get the 3 common multiples) thank you!!!

    asked by raluca
  223. history

    how does the caribbeans geography affect their economy?

    asked by elisabeth
  224. Math

    E08twelve + ? = 9twelve

    asked by Devan
  225. math

    Hose A can fill a pool in 4 hours. Hose B can fill the pool in 2 hours.If both hoses are turned on at the same time, how long will it take the pool to fill?

    asked by neena
  226. english

    wat are some ideas u write in a journal? list a few

    asked by Hitler
  227. History

    How are peninsulas, city-states, and polytheism important to greek history?

    asked by Chris
  228. science

    how is gravity related to falling objects

    asked by Alyssa
  229. physics

    A coin with a diameter of 1.9 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 19 rad/s and rolls in a straight line without slipping. The rotation slows with an angular acceleration of magnitude 2.1

    asked by help
  230. chemistry

    What is the percent by mass concentration of KCl in a solution prepared by adding 80.0 g KCl to 200.0 g of water?

    asked by Pressila
  231. Health: Sodium

    Having a lot of sodium in a chewy bar is bad but what about having 0.125g sodium is this also bad?

    asked by Amy~
  232. business law

    mark was a muktihandicapped student needing special education. mark parnets and the school board signed ann agreement that required the board to pay the placement costs for mark at a residential school. the Bemedoctome school at the current annual rate of

    asked by Anonymous
  233. calculus

    Verify that the Intermediate Value theorem applies to the indicated interval and find the value of c guaranteed by the theorem. f(x) = x^2 - 6x + 8, [0,3], f(c) = 0 I have no idea how to use the theorem :(

    asked by Jack
  234. science

    what is an example of a question a scientist could test and how would you test it?

    asked by briana
  235. MATH

    A triangle with vertices A(–3, 4), B(3, 1),and C(–1, –5) is translated 5 units left and 3 units up. Find the coordinates of A', B', and C'.

    asked by NICK
  236. STATS

    the following case occured in Gainsville, Florida. the eight-member Human Relations Advisory Board considered the complaint of a woman who claimed discrimination, based on her gender, on the part of a local surveying company. The board, composed of five

    asked by Hayli
  237. AP physics

    A drag racer, starting from rest, speeds up for 402 m with an acceleration of +23.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.10 m/s2. How fast is the racer moving 2.50 102 m after the parachute opens?

    asked by arian
  238. 6th grade, social studies

    I am having trouble with this question. How are themes of location and place different?

    asked by Xioian
  239. 6th grade science

    how come a chromosome is not visible in an onion cell

    asked by vinny
  240. Gym

    Does anybody know anything about Tim Tebow? I have to write an essay on him.

    asked by Chris
  241. geography

    Is the Tropic of Capricorn north or south of Mexico City? My answer is north. Is this correct?

    asked by Reed
  242. math

    Marcus want to make a stone walkway in his garden.the rectangular walkway will be 3 feet wide and 18 feet long.Each 2-foot by 3-foot stone covers an area of 6 sq. feet.How many stones will he need? is it 9?

    asked by Jack
  243. Trigonometry

    What does SOHCAHTOA mean?

    asked by Michael Stewart
  244. 6th grade, social studies

    I am having some problems figuring out this question.... How does using the five themes help geographers understand the places they study?

    asked by Brandon
  245. Chemistry

    Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?

    asked by Kyle
  246. Calculus

    I'm trying to find out what the graph of: y= |x+1| + |x+2| looks like. could someone help me out?

    asked by Jon
  247. Calculus urgent help

    evaluate the limit as x approaches infinity for the absolute value of (the square root of xsquared+x) -x i think the answer is 1/2 from my calculator but I have to show how i got it algebricallly and have no clue what to do

    asked by Zak
  248. Chemistry

    A 50.0 mL sample of 0.200 M AgNO3(aq) was allowed to react with an excess of NaCl(aq). The AgCl precipitate from the reaction was carefully dried and weighed. How many grams of precipitate should be obtained? I'm currently stuck and need help asap!!

    asked by Diggs
  249. English

    what is a metaphor for Pablo sniffed the air?

    asked by Meg
  250. Math

    Scientists are researching a contagious disease. They found that, on average, each person who is infected transmits the disease to 0.03 other people within one year. Currently, there are 3,000 infected people in the country. Use Excel or another

    asked by Luke
  251. AP PHYSICS

    A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.15 s. At the end of this time, the boat continues for an additional 6.25 s with an acceleration of +0.518 m/s2. Following this, the boat accelerates at -1.49 m/s2 for 8.55 s. (a) What is the

    asked by arian
  252. world history

    What fator indicates prosperity in a civilization?

    asked by Jamilah
  253. Physics

    The "Screaming Swing" is a carnival ride that is-not surprisingly-a giant swing. It's actually two swings moving in opposite directions. At the bottom of its arc, riders are moving at 30 m/s with respect to the ground in a 44 m-diameter circle. At the

    asked by danny
  254. college

    What is an example of two variables that are likely to be correlated because they are both changing over time?

    asked by Anonymous
  255. physics

    Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2 ?

    asked by Kyle
  256. math

    Describe why the Scratch Addition Algorithm works?

    asked by Devan
  257. world history

    who was the 32 president?

    asked by Anonymous
  258. science

    how do scientist often name ecosystem?

    asked by alanis
  259. 5th grade

    unscramble orisednoda

    asked by terrance
  260. Chem

    Whats the specific gravity if i have a density of 2.7 g/ml and the inital water level was 20.0 mL. I got 2.7 is this right?

    asked by Jackson
  261. Physics

    The "Screaming Swing" is a carnival ride that is-not surprisingly-a giant swing. It's actually two swings moving in opposite directions. At the bottom of its arc, riders are moving at 30 m/s with respect to the ground in a 44 m-diameter circle. At the

    asked by danny
  262. Math

    Supply the missing numbers. Round any decimal to the nearest thousandth and percent to the nearest tenth of a percent if necessary. fraction decimal percent 12percent

    asked by Gina
  263. world history

    What fator indicates decline in a civilization?

    asked by Jasmin
  264. Math

    Just checking to make sure I understand this. Absolute value bars are grouping symbols. Use the order of operations to evaluate the expression -3 + /-x + 2/ when x=12 -3 + /-12 + 2/ = 11 Thanks!

    asked by Kate
  265. Microbiology

    Why do you inoculate thioglycolate broth with a stab rather than a loop? I have searched online, but they all site as using a loop, not a stab. Also, in lab we used loops to inoculate other broths? Please Help.

    asked by 24
  266. Chem

    I have a problem, the density of the metal = mass (2) - mass (1) over Volume (2) - Volume (1) = My first mass and volume are 15.098g and 5.5 mL. the second mass and volume are 11.3235g and 4.0 mL. I got 9.04g/mL as my answer if this isn’t right can you

    asked by Jackson
  267. Spanish

    asistir a beber comer aprender Hola Me llamo Luisa. Soy estudiante de la UNAM donde estudio para ser interprete . mucho de la cultura y la lengua de los estadounidenses en mis clases. Yo clases con amigo Juan. El es un companero en la clase de ingles. Juan

    asked by Christopher
  268. 3rd gr math

    tyrell says $750 is about $800. Sara says $750 is about $700. Who is correct? Explain? Its number sense.

    asked by nancy
  269. math

    don't know where to start or end! charges $20 for a phone and $30/month for its economy plan. The equation C =30t + 20 describes the total cost, C of operating a media service phone for t months. The total cost for 10 months of service is $_______.? If a

    asked by jean
  270. 3rd grade math

    Writing in math. Explain how you would use a number line to round 148 to the nearest ten.

    asked by javon
  271. algebra

    The percent of increase is 16%. The new number is 522. What was the original number?

    asked by Jay
  272. math

    a. Find the monthly payments for a simple interest amortized loan of $16000 at 7 1/8 % for 7 years. monthly payment = $ b. Find the total interest for a simple interest amortized loan of $16000 at 7 1/8 % for 7 years. total interest = $

    asked by lily
  273. math

    the length of a rectangle is fixed at 26m. what widths will make the perimeter greater than 90 cm

    asked by jean
  274. Chemistry

    calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n=7 to n=1. Is it just 6? or how do I do this?

    asked by Katie
  275. college math

    E08twelve + ? = 9twelve

    asked by Devan
  276. math figuire

    an electric motor operates at 110 volts and a resistance of 22ohms the ampage is.. A. 4.5 amps B. 4 amps C. 5000 mi D. 4500 mi

    asked by jamie
  277. sb high

    what is the molarity of the individual ions in a 5.0E-5M solution of barium hydroxide?

    asked by sarah
  278. Chemistry

    Please help with these 2 stoichiometry questions. How many grams of NH3 can be produced from 3.98 mol of N2? How many grams of H2 are needed to produce 10.41g of NH3?

    asked by Sarene
  279. math

    rounded to the nearest ten I am 780. I am even. The sum of my digits is 17.

    asked by Nissa
  280. history

    Discuss the role of law and politics in Supreme Court decision making. Which is more influential? Why?

    asked by nick
  281. calc

    Find the derivatives of the following functions using the differentiation rules. f(x)=(x^3-2x^2+x+1)(sqrt(x)-3x+9) I did: f'(x)=[x^3-2x^2+x+1][(1/2x^(-1/2)-3]+[x^(1/2)-3x+9][3x^2-4x+1] which I got to be

    asked by Anna
  282. Russian

    what is the russian word for Thank you?

    asked by Chantal
  283. Homework Check

    1.)In a(n) _________ , simple interest is added on to the amount borrowed and the total is repaid in equal installments. a.)Monthly installment plan =b.)add on plan c.)Single-payment plan 2.)In a(n) _________ , interest is charged on the unpaid part of the

    asked by Ariel
  284. geometry

    Express answer in exact form. Find the area of the smaller segment whose chord is 8" long in a circle with an 8" radius

    asked by chandrasalon
  285. Social Studies

    How did missionairies help New France expand?

    asked by Kenzie
  286. math

    An elf has a staircase with 10 steps to climb. Each step it takes can cover either one stair or two stairs. In how many ways can the elf climb the stairs?

    asked by jen
  287. physics

    A shot-putter moves his arma and the 7kg shot througha distance of 1m, giving the shot a velocity of 10m/s from rest. Find the average velocity on the shot

    asked by Anonymous
  288. world history

    What is the realtionship between Reformation and European dominance in world markets?

    asked by edward
  289. chemisty

    A bottle labeled 0.150Msulfuric acid contains a solution with what concentration in sulfate ions?

    asked by sarah
  290. Underline the topic sentence in the paragraph.

    Paragraph one is an analysis because the writer breaks down the points of piece of writing and considers how they relate to each other. Paragraph two is a summary because a summary is a description of the essence of the topic and this paragraph does

    asked by maribel
  291. physics

    0.24 h to reach the school from your house. velocity of the bus is 19.7 km/h to the east, what is the displacement?

    asked by Anonymous
  292. math/algebra

    Perform each of the following computations (a)1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 (b) (5 2/7 + 2 3/7)/ 2 1/2 (c) 3/2 - 4 1/3

    asked by Anonymous
  293. physics

    It takes a runner 4 h, 58 min, 36 s to run a marathon. If the distance of a marathon is 42.2 km, what is the average speed of the runner?

    asked by Anonymous
  294. physics

    A car traveling in a straight line has a velocity of +4.9 m/s. After an acceleration of 0.50 m/s2, the car's velocity is +7.3 m/s. In what time interval did the acceleration occur?

    asked by Anonymous
  295. math

    One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per second squared. Math -

    asked by erin
  296. chemistry

    I am in need of help about this specific heat question. A 100.0g sample of aluminum released 1680 calories when cooled from 100.0 degrees C ti 20.0 degrees C. What is the specific heat of the metal? I tried setting it up: 1680 cal ________________________

    asked by Jena
  297. political science

    discuss the political environment leading to the court's decision in Marbury v Madison (1803). How did Chief Justice john marshall secure the power of judical review?

    asked by joe
  298. poltical science

    what are amicus curiae briefS?

    asked by joe
  299. geo

    I need 3 reasons why a huge earthquake wouldnt occur in NYC. I have the following points: 1) New york city doesn't lay beneath any fault lines I also said that if an earthquake were to occur, the magnitude would be on the lower end of the ritcher scale.

    asked by Lena
  300. math

    I am having problems coming up with the answer to this problem. Could you kindly help me. It took Amanda 3 hours and 20 minutes to drive from her home to a friend’s house. She then drove to the beach which took her 4 hours and 25 minutes. It only took

    asked by davis
  301. math

    The ã61 (square root of 61) is between what two whole numbers?I am a little bit losed when coming up with the answer can I trouble you for some help.

    asked by davis
  302. chemistry

    What is the net ionic equation for chlorine ion and silver nitrate reagent?

    asked by nicki
  303. Teachers Aide/Language and other Barriers

    18. To welcome a new Asian student into your classroom, it would be appropriate to A. greet him or her warmly with a hug. B. have the student introduce himself or herself to the class. C. have classmates greet the new student by saying

    asked by AspiringTeacherandMotherofFour
  304. computer history

    When was the first computer created, and by whom?

    asked by Jay
  305. geography

    I do not mean to make it seem I an unappreciative for the help but can you look over my question again. Is Mexico City north or south of the Tropic of Capricorn? My answer I really do think was correct. I said Mexico City is north. On my map the Tropic of

    asked by Reed
  306. physics

    A car traveling in a straight line has a velocity of +4.9 m/s. After an acceleration of 0.50 m/s2, the car's velocity is +7.3 m/s. In what time interval did the acceleration occur? 1 s

    asked by Anonymous
  307. Biochemistry

    What is the net ionic equation for Phosphate ion + ammonium molybdate in the presence of nitric acid?

    asked by Help
  308. Teachers Aide/Language and other Barriers

    1. Suppose Mr. Smith holds so much prejudice against a student that it causes him to treat that student unjustly or unfairly. Mr. Smith is demonstrating A. stereotyping. C. handicappism. B. discrimination. D. racism. 2. If one child displays discriminatory

    asked by AspiringTeacherandMotherofFour
  309. Math

    -9+x = x/8 -23

    asked by Lauren
  310. Chemistry

    Please help I am 11 and lost.y question is a piece of tungsten has a volume of 5.2cubic centimeters and and mass of 100 grams. What is the density of tungsten? I am in sped class don't understand how to solve it.

    asked by Alex
  311. algebra 1

    how many quarts of pinnaple juice should theo add to 20 percent pinnaple drink to create 5 quarts of 50 percent pinnaple juice mixture

    asked by Bryan
  312. college math

    Base Twelve. B08twelve + ? = 9twelve

    asked by Devan
  313. Math

    How do you solve 1/3x-6 = 9+2/3x Please help!

    asked by Lauren
  314. descriptive essay

    This is my introduction paragraph for a descriptive essay. My professor told me that the thesis was a fact, not an idea. Is there a way that I can reword it to make it an idea? Though being a parent is one of the greatest joys of life, teen parenting comes

    asked by Anna
  315. Math

    How would you solve -9+x = x/8 -23 ?

    asked by Lauren
  316. physics

    You and two friends are on top of the library 30 m above the ground. At the same time that you drop a ball, from rest, one of your friends tosses a ball straight up, giving it an initial velocity of 15 m/s, and your other friend tosses a ball straight

    asked by Sam
  317. con law

    explain how bargaining and accomodation affect opinion writing on the court

    asked by joe
  318. political science

    discuss the major components of strategic, or rational choice, decision making

    asked by jace
  319. math

    (-8)2 – 8(2 )= I need help with this problem i have wrecked my brain and havnt came up with the answer

    asked by davis
  320. chemistry

    determine the specific heat of a material if a 35.0 g sample absorbed 48.0 J as it was heated from 20 Celsius to 40 Celsius.

    asked by Courtney
  321. math

    can I trouble any one with this que stion. I got jello brain right now. 7-(-1)/3(2)-9/(-3)

    asked by davis
  322. math

    a overhead gantry crane that is equiped whith a crane and hook block and reeved with 6 parts of line is lifting 12 tons what is the load on the haul line A.2000lbs B.6000lbs C.8000lbs D.4000lbs please show the formula

    asked by jamie
  323. Business

    Identify the ROI and NPV of the wireless order-taking system. Provide all calculations for the ROI and NPV in the speaker notes. Discuss some of the intangibles Lisa needs to consider and make a recommendation as to whether Lisa should order such a system.

    asked by Anonymous
  324. math

    a locomotive is traveling at 120 mph. the engineers reaction time is 0.9 seconds how many feet will the train travel before the engineer recognises an emergency and applies the brake. A.265.ft B.260.ft C.160.ft D.165.ft.

    asked by jamie
  325. marketing

    Name and describe the five stages of the product life cycle using examples of products or services in your territory. As Marketing Manager, what strategies would you recommend for each of these products or services in order to maximise sales? Provide

    asked by Dinish
  326. 5th grammar rule

    write all the proper nouns in each sentence. also need to capitalize the proper nouns. The town of blair, nebraska, is home to dana college. please show me some of example thank you.

    asked by pat
  327. physics

    a train with an initial velcity of 0.50 m/s accelerates to 2.00m/s for 2 seconds, coasts with zero acceleration for 3.0 seconds, and then accelerates at -1.5 m/s/s for 1.0 seconds

    asked by Anonymous
  328. 8th grade

    Find the number of Calories in a grapefruit and an orange. (1) An orange has 15 more Calories than a grapefruit. (2) Twenty oranges and ten grapefruit have 1800 Calories.

    asked by Jacqueline
  329. math

    a number divisible by 4 and 5 not by 6

    asked by bianca
  330. 1st grade

    my 1st grader is completing his homework it says write a problem for the picture and it has a picture of 2 bones and 3 dogs what kind of answer are they looking for?

    asked by Tanya
  331. physics

    A brick is thrown upward from the top of a building at an angle of 15° to the horizontal and with an initial speed of 16 m/s. If the brick is in flight for 2.8 s, how tall is the building?

    asked by Claudia
  332. physics

    A boat moves through the water of a river at 5 m/s relative to the water, regardless of the boat's direction. If the water in the river is flowing at 1.6 m/s, how long does it take the boat to make a round trip consisting of a 180 m displacement downstream

    asked by Kim
  333. physics

    A 30g bullet with a speed of 400m=s strikes a glancing blow to a target brick of mass 1:0kg. The Brick breaks into two fragments. The bullet deflects at a angle of 30 above the +x-axis and has a reduced speed of 100m=s. One piece of the brick with mass

    asked by kimber
  334. chemistry

    what is the net ionic equation for Na3PO4 + ZnSO4=Zn3(PO4)2+ Na2SO4

    asked by Jed
  335. physics

    A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 22.0 m/s. The cliff is h = 23.0 m above a flat horizontal beach, as shown in the figure below.

    asked by Erin
  336. 11th grade

    determine the number of significant figures in each following measurements

    asked by elvira
  337. managerial economics

    Given 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 profits

    asked by snehavalli
  338. physics

    While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 245 m east, 210 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

    asked by Blair
  339. physics

    A 30g bullet with a speed of 400m=s strikes a glancing blow to a target brick of mass 1:0kg. The Brick breaks into two fragments. The bullet deflects at a angle of 30 above the +x-axis and has a reduced speed of 100m=s. One piece of the brick with mass

    asked by kimber
  340. 9th grade

    Celia bought 12 apples, ate two of them, and sold the rest at 20 cents more per apple than she paid. Her total profit was $1.00. How much did she sell for each apple? I need help with this question. I know that this is a bought and sold question. I know

    asked by Kendrick
  341. college chemistry

    Please identify the net ionic equation for Na3PO4 +ZnSO4=Zn3(PO4)2+ Na2SO4

    asked by Jessica
  342. geography 5th

    how many provinces are competely or partially included between 50degree and 60degree N latitude? the map of canada is shown on a geographic grid. what does that mean? which territories are between the same lines of latitudes as alaska? please help i don't

    asked by pat
  343. math

    what is value of 7 in each number 127 473

    asked by nat
  344. Science- Physics

    David is driving a steady 24.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70m/s^2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?

    asked by Kim
  345. college- Physics

    David is driving a steady 24.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70m/s^2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?

    asked by Kim
  346. Algebra

    s1 = 18 + .4m, s2=11.2 + .54m when is one spring 10 cm longer than the other one? (s = cm long)

    asked by Carol
  347. physics

    if co-efficient of friction between tyre and road is0.5, what is smallest radious at which car turn on a horizontal road when its speed is 30km/hr?

    asked by vishal