August 24, 2011

  1. algebra

    what numbers are multiples of 3
  2. Matg

    Write 7hb as a phrase.
  3. Calculus :)

    If 8000 dollars is invested in a bank account at an interest rate of 10 per cent per year, find the amount in the bank after 11 years if interest is compounded annually ____ Find the amount in the bank after 11 years if interest is compounded monthly ____
  4. math

    use exact values of the sin,cos and tan of (pi/3) and (pi/6)(which I have found)and the symmetry of the graphs of sin,cos and tan to find the exact values of sin(-pi/6), cos(5pi/3) and tan (4pi/3). I know that sin -(pi/6) = -1/2 and cos (5pi/30 = 1/2 and
  5. Maths

    The smallest positive integer value of n for which 168 n is a multiple of 324
  6. Chemistry

    A stock aqueous solution contains 348.29 grams of NaCl per 1.000L. 68.00mLs of water is added to 10.00mLs of the stock solution. What is the molarity of the dilution???
  7. Chem

    Solid ferric nitrate and aqueous sodium hydroxide are combined with water in a test tube. A brown to red precipitate forms in the test tube. Write a complete chemical reaction that accounts for the formation of the solid.
  8. Physics 4B

    To make a secure fit, rivets that are larger than the rivet hole are often used and the rivet is cooled (usually in dry ice) before it is placed in the hole. A steel rivet 1.873 cm in diameter is to be placed in a hole 1.871 cm in diameter in a metal at
  9. physics

    If the refractive index of air to glass is 1.52 and air to water is 1.33, find the density of the glass if density of water is 1g/cm^3
  10. chemistry

    The mass of the elements iron and oxygen in four samples of a rust-colored substance was measured in grams. Do you think all four samples are the same compound explain.
  11. Calculus :)

    For the function f(x)=1/(x+1), verify f(x) is one-to-one, then calculate f^-1 (1/4) and (f^-1)' (1/4)
  12. math

    4^(3-x)=7 showing all steps
  13. professional communication

    explain the importance of five sentence starters that you can use in a professional presentation?
  14. Health

    Why is support important for situations involving abuse?
  15. math

    estimate using compatible numbers or other methods. estimate by rounding 123,786-82,004=
  16. g.k

    who is indian prome minister?
  17. Physical Education

    How could abuse victims access support services?
  18. American Government

    According to the Declaration of Independence, the power of the government is based on _____.
  19. english

    identifying the parts of speech of each wording by placing the appropriate abbreviations after the words It is a toothless creature that can smell and see well. identify the appropriate part of speech noun,adjective, verb, ect... TOOTHLESS,SMELL
  20. english

    how to learn good english
  21. math

    Number of 17 boxes to of 14 boxes plus number of 11 boxes
  22. math

    Number of 17 boxes to of 14 boxes plus number of 11 boxes
  23. geometry

    FIND THE LENGTH OF THE RADIUS OF THE CIRCLE IS 9cm. THE ARC OF THE SECTOR MEASURES 60 DEGREES. FIND THE AREA OF THE SECTOR.
  24. physics

    stone dropped from a tower if steady wind blows in the horizontal direction
  25. physics

    A jogger runs in a straight line with an average velocity of v1=6.6 m/s for t1=6.0 min, and then with an average velocity of v2=5 m/s for t2=3.0 min. What is her average velocity during this time? Answer in units of m/s.
  26. social studies

    whose civilization is the best civilization in the world?
  27. chemistry

    the solubility of KNO3 is 8.9 moldm3 at 50c.what is the mass of salt would be require to saturate 200cm3 of water at this temperature.
  28. physics

    A jogger runs in a straight line with an average velocity of v1=10.2 m/s for t1=6.0 min, and then with an average velocity of v2=7.7 m/s for t2=3.0 min. What is her total displacement? Answer in units of m.
  29. math

    Tommy, Shawn, and ricky had a total of 192 picture cards. In a game, Tommy lost some picture cards to Shawn and Shawn's picture cards doubled. Shawn lost some picture cards to ricky and ricky's picture cards doubled. Then they each had the same number of
  30. math

    an aquarium had 50 goldfish and angel fish. After 2/5 of the goldfish and 1/2 the angel were sold, there were 27 goldfish and angel fish left. What was the ratio of the goldfish to the angel fish after the sale?
  31. math

    a pet shop owner had an equal number of hamster and puppies for sale. the hamster were put equally int o 4 cages and the puppies were put equally into 12 cages. at the end of the day, he had sold 3 cages of hamsters and 6 cages of puppies. if the total
  32. science

    is hydrogen an element
  33. physics

    An electron has an initial speed of 178000 m/s. If it undergoes an acceleration of 4.8 x 1014 m/s2, how far has it traveled before reaching a speed of 789000 m/s? Answer in units of m.
  34. physics

    An electron has an initial speed of 178000 m/s. If it undergoes an acceleration of 4.8 x 1014 m/s2, how far has it traveled before reaching a speed of 789000 m/s? Answer in units of m.
  35. Physics

    A train is moving along a straight horizontal track. A pendulum suspended from the roof of one of the carriages of train is inclined at four degree to the vertical. Calculate tge acceleration of train
  36. Chemistry

    My ONLY three questions I need help on! I did the other 50 something already!(: Why are covalent bonds weak in the presence of heat but strong in the presence of water? What are the 5 rules for ionic bonding? Give an example of a compound that is
  37. MATH

    We have two bags of marbles. The first bag has a ratio of 2 blue marbles to 7 red ones. The second bag has the same ratio. If the 2nd bag has 37 red marbles, how many blue ones does it have?
  38. MATH

    Detroit puts out 5 white cars to every green car. If Detroit makes 2,692,000 green cars, how many white cars does it make?
  39. Math

    If girls made “A’s” on a ratio of 7 to 5 compared to boys (of course this is not in our school), how many “A’s” would the boys make, if the girls made 92?
  40. Chemistry

    For High Performance Liquid Chromatography (i.e. HPLC), can the column be flushed with Isopropanol (i.e. IPA)?
  41. calculus

    Find two unit vectors that make an angle of 60° with v = ‹3, 4›. Give your answers correct to three decimal places. I'm not sure what to do here; I believe that I use to definition of a dot product (or maybe cross product) with relation to the trig
  42. english

    could you mind explaining the grammatical aspect and what tense form would it come under for : The car started
  43. Physics

    1)A car is moving with uniform accelaration. It moves along two point A and B and enters with velocity 50 m/s and 80 m/s respectively . Find the velocity when the car is moving in b/w the point A and B. Let t be the time measured from when the velocity is
  44. calculus

    I have 3 points: P(-3, 1, 2), Q(-1, 2, 3), R(2, 1, 0) and I need to find a nonzero vector orthogonal to the plane through these three points. I seem to recall this having something to do with the cross product, so I mad vectors PQ & PR calculated PQxPR and
  45. equation

    A fox and an eagle lived at the top of a cliff of height 6m, whose base was at a distance of y metres from a point A on the ground. The fox descends the cliff and went straight to the point A. The eagle flew vertically up to a height x metres and then flew
  46. English

    People who attract a lot of friends are neither negative nor needy. Do I need to change this sentenance so that both parts are parallel?
  47. maths

    Find the sum to n terms in the following series. 2.3.4 + 3.4.5 + ......... Please explain me in detail, thanQ!!
  48. science

    The total power output of the Sun is about 3.8 × 1026 W, and the power-producing core has a radius of about 1.4 × 105 km (about 20% of the full radius of the Sun). Using these figures and your knowledge of the energy release in the proton– proton chain
  49. statistics

    A researcher is interested in studying people’s mean age in a certain region. If the population standard deviation is known to be 8 years and 1.5 year of error margin is allowed, find the minimum simple size the researcher needs to use, knowing that he
  50. science

    if a bowling ball has a momentum of 12 kilogram meters per second east. and the velocity of the ball is is 3 meters per second east then what is the mass
  51. writing

    Can someone please help? Does this seem to be correct? o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence variety and the rhythm of the author’s writing. o Focus on the writing rather than the
  52. geometry

    find the value of b if jm = b and ml = 3b-4
  53. Statistics

    what does it mean for categories to overlap? does it mean that categories overlap if they have the same value? Ex: Cause : Percent weather : 40 error : 6 mech. : 12 sabotage: 6
  54. science

    choose a topic such as history or science you feel is relevant to the age group you work with or expect to work with. 200-300 words how you can assess a child's knowledge on your chosen topic using at least five of gardner's intelligences.
  55. geometry

    point r is located at (-1,0) and point s located at (8,12). Find the length of the line segment rs.
  56. Trigonometry

    an open box is made by cutting squares from the corners of a piece of metal that is 18 cm by 26 cm. If the edge of each cut-out square is x cm, find the volume when x=1, x=2, and x=3. If someone could explain to me how to do this. It would be very
  57. Writing

    Is this correct? describe the feedback you received from WritePointSM, providing specific examples of helpful suggestions, as well as ones you felt may have been incorrect and why you think that. underline topic sentence. Topic sentence firtst sentence I
  58. algebra

    n+(-5)= -7/12
  59. History

    homo sapiens came to north america by...????
  60. ashworth

    Commercial banks are required by law to hold reserves. These reserves are specified as percentages of a bank's
  61. math

    PLS help There are 3 times as many girls as boys in a school choir. What is the ratio of the number of girls to the total number of childern? Thank you for your help
  62. geometry

    simplify by rationalizing the denominator: 18 ``√6````
  63. Writing

    Review the feedback provided by the Center for Writing Excellence and make corrections to your paragraph. When doing so, understand that WritePointSM may be helpful but is not always correct. Make the corrections you feel are appropriate. Underline topic
  64. accounting

    What is the journal entry to record a sale but no cash comes in?
  65. geometry

    simplify: √27
  66. algebra 2

    3 √5 + 4 √5
  67. math

    tom sells 15% of 180 acres to dan for 1,100 an acre .the motrgage finace fees dan must pay are 3% of the total price.how much are the fees
  68. algebra 2

    12 √3 + 3 √12
  69. World History Honors

    My assignment: Imagine that Sita, Mahavira, Siddhartha Gautama, Confucius, and Laozi were all invited to dinner at the home of Brahma. Write a 600-word dialogue between them as they argue about what they should eat for dinner and who should sit next to
  70. algebra 1

    6 ---------- √5
  71. Math

    Use division to convert the base ten numeral 35 to base five.
  72. statistic

    1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. b. The graph of a normal distribution is bell-shaped. c. If a population has a normal distribution, the mean and the median are not equal.
  73. statistic

    Using the 68-95-99.7 rule: Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities: a. Percentage of scores less than 100 b. Relative frequency of
  74. Math

    Can someone please walk me through this? i don't want the answer..........just a walk through. Quiz tommorrow. 2 + 5(9x - 6) = 14
  75. Math(Equation Writing)

    Can you please help me write out the equation for these? (not solve) 1. The number of trees planted by the Alpine Nursery in April was three more than twice the number of trees planted by the nursery in March. If 73 trees were planted in April, how many
  76. Math

    What is 2 + 2? = 4 What is 2 * 2? = 4 So, the sum and the product of these two numbers is the same. Are there other numbers that have this same property? Yes Determine all number pairs x and y such that the product of x and y and the sum of x and y are
  77. French

    how do you count and spell in French from 1-20?
  78. MATH

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 168 and 182 cm tall? (b) How many would you expect to
  79. Math

    The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.83 inch? (Give the answer to four decimal places.)
  80. Math

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 170 and a variance of 4. The material is considered defective if the breaking strength is less than 164 pounds. What is the probability that a single,
  81. Math

    slimy sid's "fun bag"holds 19 worms and 6 slugs.How many of which bug would you add to make the probability of picking a slug 1/2.
  82. Math

    Stupendous Supermarket has agreed to sell Uncle Edsel's homemade Rhubarb and Clam Pies. Each pie has a radius of 4 inches. If the store decides to display 10 of them in a single row across the top of the bakery counter, how wide will the display be?
  83. Literacy

    Miss Sue please review Literacy question #2, on Aug 23, 2011 @ 6:04pm. I believed I made a mistake, the correct answer is C not B. 2. The Altas of World Religion is an example of which of the following reference sources? A. Historical atlas B.
  84. math

    manfred mouse fell inside a box of toy blocks. to escape, he needs to build a stairway with the blocks. for manfred to escape, the stairway must be 8 blocks high. he starts with 8 blocks for the bottom step. for the next step, he lays 7 blocks atop the
  85. information technology

    discuss wheather the problem behavior could be caused by - Motivation - Ability - Role perceptions - Situational factors
  86. math

    Use the exact values of the sin, cos and tan of pi/3 and pi/6, and the symmetry of the graphs of sin, cos and tan, to find the exact values of si -pi/6, cos 5/3pi and tan 4pi/3. I have found the answers to the first three using the special tables
  87. french

    I was wondering how do I put "Elle se Bronzent" is the Passe Compose, Imparfait, and Plus que parfait since i still haven't gotten the hang of it.
  88. mind and machine

    What figure from the history of philosophy section do you think might have some views that are similar, or at least relevant, to your own?
  89. math riddles

    using the numbers 1-9 only once, make an addition problem using all the numbers. (it has to be in the hundreds positioning)
  90. algebra 2

    3 √15 ---------- √3
  91. algebra 2

    simplify completely: (3a^3b )-3 -------------- ( 2a^-1b^2)
  92. geometry

    Line e bisects line xy at m and divides line xy into two equal parts. name a pair of congruent segments.
  93. Algebra

    When fighting a fire the velocity V of water being pumped into the air is modeled by the function v=ã2hg, where h represents the maximum height of the water and g represents the acceleration due to gravity (32 ft/s^2) Solve the function for h.
  94. Statistics

    an automobile manufacturer claims that their tires last more than 70,000 miles before replacement? Whats the null and alternative hypothesis
  95. physic

    Lai was driving north on Hwy 75 with a speed of 56.9 m/s when she heard on a CB that a patrolman was hiding 127.3 m north of where she is. Knowing that the patrolman can start clocking the car in 2.7 seconds, Lai decided to slow to 34.2 m/s. and
  96. 6th grade math

    Total tickets sold$1625. Adults $7,kids $3. Twice as many kids as adults bought tickets. How many adults and kid tickets were sold.
  97. 6th grade math

    Total tickets sold$1625. Adults $7,kids $3. Twice as many kids as adults bought tickets. How many adults and kid tickets were sold.
  98. math

    use the numbers 3,5,6,2,54, and 5 in that order to write an expression that has a value of 100
  99. american history

    what is one reason colonist came to america
  100. social Studies

    What are some good questions to ask about latitude and longitude and the prime Meridian and the Equator? Pease have at least 3 good questions. Pease help me. This is worth 100 points so please help!
  101. personal financial planning

    Which part of the comprehensive financial plan do rent and food fall under?
  102. pre calculus

    how do i solve this problem: Draw the angle in quadrant I whose terminal side is on y+4x
  103. math

    pls help. There are three times as many girls than boys in a school choir. If there are 27 girls how many children are there altogether. Thank you
  104. maths

    if both the radius and the hight increse, what happens to the volume of the cylinder?
  105. biology

    What is the main idea of metabolism. please help
  106. Math

    Simplify the Ratio 4in : 1 yd
  107. Physical Education

    Preliminary design of a compressor drive train Determine the force-time function within the compressor’s cylinder and the torque-time function acting on the input shaft on the compressor during any cycle. Given: Compressor speed is 1500rpm. The
  108. geometry

    what are the measures for the following shapes? cube? rectangle? cone? sphere?
  109. Physics

    A roller coaster moves 85m at 35 degrees S of W, and then travels 30 m at 45 degrees W of N. What is its displacement from its starting point?
  110. Calculus

    A car starts from point P at time t=0 and travels at 45 mph. A)write an expression d(t) for the distance the car travels from p. (would it just be y=45x??) B)What is the slope of the graph? what does it have to do with the Car? D)Create a scenario in which
  111. physics

    A person takes a trip, driving with a constant speed 94 km/h except for a 83 min rest stop. If the person's average speed is 70 km/h, how far is the trip? Answer in units of km
  112. physics

    a ballon is moving upward with velocity 5m/s.when it isat a height of 98m a packet is dropped from it.what is the velocity of packet when it strikes the ground.
  113. geometry

    sam must paint his bedroom ceiling. the diagram below represents his bedroom ceiling and includes a circular light fixture with a diameter of 2 feet. a gallon of paint covers 16 square feet and costs $8.95. how much will sam have to spend on paint to cover
  114. math

    A random variable x has a probability distribution. How to calculate E(1/(X+1))?
  115. Marketing Research

    You are the owner of a mid-size business that sells medical devices to hospitals, clinics, and physicians. Your products include implantable devices (pacemakers) and equipment used for therapeutic applications such as dialysis, monitoring of blood sugars,
  116. math

    name the place to which each number was rounded. 76,960 to 77,000 687,684 to 690,000 1,284,955 to 1,284,960
  117. English (Essay)

    I'm writing about the treatment of Taliban women in Afghanistan and so far I've accomplished 2 paragraphs. Could you proof read it and give me some pointers? Thanks so much! There is no stopping the madness that is charging through the blood-stained
  118. physics

    a ball is dropped from height of tower 300m .after 1s another ball is dropped with 20m/s from tower .when and where they meet?
  119. Science

    16g of bone displaced a volume of 8mL of water.what is the density of the bone?
  120. physics

    A body moving with uniform acceleration has a velocity of 9.8 cm/s when its x coordinate is 1.38 cm. If its x coordinate 1.4 s later is -8.1 cm, what is the magnitude of its acceleration? Answer in units of cm/s2
  121. statistics

    A random variable x has a following probability distribution. x: 0 1 2 3 P(X=x) 1/6 1/2 1/5 2/15 How to calculate E(1/(X+1))?
  122. Math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 80 people. (a) How many would you expect to be between 158 and 172 cm tall
  123. calculus

    Use vectors to decide whether the triangle with vertices P(3, −3, 0), Q(4, 0, −2), and R(8, −2, −3) is right-angled. I feel like this uses the cross product but I'm not sure how.
  124. algebra

    49t^2 + 42t + 9
  125. math

    A random variable x has a following probability distribution. x: 0 1 2 3 P(X=x): 1/6 1/2 1/5 2/15 How to calculate E(1/(X+1))?
  126. Chemistry

    I need to calculate this and I am to asume that all numbers are measurements. I am working with signifigant figures. .6260-.015
  127. math

    find the range the answer will be within 6,473+3,234 32,959+15,568 79,484+8,933
  128. math

    how do you calculate the distance and speed of a motorcycle that is going to jump 4 cars
  129. Chemistry partial molar volumes

    The partial molar volumes of the CCl4 and benzene are 122cm3/mol and 98.0 cm3/mol, respectively in a solution in which mole fraction of chloroform is 0.2. Calculate the volume occupied by 2.5 moles of the solution. Thank yOu.
  130. calculus

    Find parametric equations and symmetric equations for the line through P0 and perpendicular to both given vectors. (P0 corresponds to t = 0.) P0 = (4, 3, 0) i + j and j + k Not exactly sure what to do, how do I find what is perpendicular to both vectors?
  131. Geography

    I need an easy way to remember the followingg states: Montana, Wyoming, Colorado, New Mexico, Arizona, Utah, Idaho, Washington, Oregon, Nevada, and California. I have to know the capital and where it is located on the u.s. map .
  132. Statistics

    For a particular value, this table gives the percent of scores between the mean and the z-value of a normally distributed random variable. What percent of the total population is found between the mean and the z-score, assume z = 2.79
  133. geometry

    find the circumference of the circle to the nerest tenth. d=1/2yd
  134. Physics

    Tree point charges(A---B---C)have equal magnitudes and are located on the same line.? The separation d btw A and B is the same as btw B and C. A is +, B/C are -. Consider the net electrostatic force that each charge experience due to the other two charges.
  135. American Government

    what do you think are some possible contemporary effects of persistent discrimination against ethnic and racial minorities?
  136. ETH/125 - CULTURAL DIVERSITY

    List two to three characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against these groups?
  137. computer

    which type of memory needs to be refreshed most often? A. Dram B. FRAM C.SRAM D.XRAM I think DRAM but not sure
  138. math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 175 and a standard deviation of 6. We find the heights of 40 people. (a) How many would you expect to be between 169 and 181 cm tall? 1 (b) How many would you expect to
  139. STATISTICS

    WHAT PERCENTAGE OF AFRICAN AMERICAN ARE FEMALE
  140. essay

    I am supposed to do an essay on the 5 people you meet when you go to heaven. Do you think I should read whole book first and then do outline or take notes and make outline as i go along?
  141. math

    The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.82 inch? (Give the answer to four decimal places.)
  142. Math (5th grade)

    There are 8 more girls than boys in the Math Club. The club has 44 memebers. How many boys and how many girls are in the club? Show your work.
  143. math

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 4. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single,
  144. algebra1

    how do you figure out this answer.15.6+xforx=-17.9
  145. MATH HELP!!!!!!! :(

    This is a riddle, and I'm supposed to find a 5-digit number from it..... My thousand's digit is the first that is perfect, but if you're not happy with that, it's also the product of the first two primes. My units digit is the odd of those two primes, and
  146. healthcare

    What is the relationship between research- and evidence-based care? Provide an example that shows why this relationship is important. i have the first part i need a example can anyone help me out?
  147. math

    it is greater than 43 and less than 52 and the sum is 8 what is it
  148. math 11th

    3/(x+4)+5/(x-2)
  149. math

    find the range the answer will be within 6,473+3,234=9,707 and the range is 3239 do i add 6,473+3,234=9,712
  150. AP Chem

    An ore contains Fe3O4 and no other iron. The iron in a 51-gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 21.9 g. What was the mass of Fe3O4 in the sample of ore?
  151. Math

    The mean of a set of n numbers is 180, if 54 is added to the set of numbers the new mean is 159. Find n
  152. public health

    What are the purposes of public health surveillance? How are they implemented and utilized by communities, governmental agencies, and health care organizations or providers?
  153. English

    Our state is bordered by Kansas to the west. Should west be capitalized...I was thinking it was a direction and didn't.
  154. health

    How do you adopt a major HMIS standard? this is the last question in my essay and i can't seem to find the answer to it.
  155. 8th Math

    How do I substract a whole number from a fraction ?!?!?!
  156. maths

    the smallest integer which is an exact multiple of both 60 and 126
  157. maths

    express 13,40 as a decimal
  158. math

    8+12 rewrite using commutative property
  159. biology

    List and describe ways that plants affect/influence your life as a whole and on a daily basis?
  160. math

    round 7,596,459,456 to the place named ten thousands millions hundreds thousand
  161. social studies

    I have this homework and its an acrostic the word is history and each of the words I choose have to have something to do with texas history i got all except h and y what are some words i could use?
  162. math

    Barry's family drove 843 mi to see his grandparents. On the first day, they drove 483 mi. On the second day, how long did it take to reach Barry's grandparents' house if they averaged 60 mi/h?
  163. GEO

    what advantage for eco-tourism?
  164. Accounting

    What would be the effect of removing either the Matching Principle or the Revenue Recognition Principle from the process? Use a concrete example of how doing so might affect accounting in a given period.
  165. math 7th grade

    simplify 2(a^2+2b+2a^2)+b+2c answer: 4a^2+5b+2c also 6a^2-a^2+16=7a^2+16 correct??
  166. math

    13x + 15= 11x - 25
  167. english

    do you know a good sight for practice 0n complete subject and complete predicate
  168. Chemistry

    0.717 g of a compound containing carbon, hydrogen, and oxygen is burned and found to produce 1.02 g CO2 and 0.624 g H2O. The molar mass of the compound is 124 g/mol. (a) Write a chemical equation for the combustion of this unknown hydrocarbon. (b)
  169. math

    5x - 2 + 3x= 17 + 12x - 23
  170. Math

    Could anyone help me find the pattern for these fractions? I can't seem to figure it out. Thanks 2/3,3/4,4/5,5/6. The LCD for them is 60.
  171. math

    round 7,596,459,456 hundreds thousand
  172. Chemistry

    0.717 g of a compound containing carbon, hydrogen, and oxygen is burned and found to produce 1.02 g CO2 and 0.624 g H2O. The molar mass of the compound is 124 g/mol. (a) Write a chemical equation for the combustion of this unknown hydrocarbon. (b)
  173. Math

    [3(7 + 4) - 2]6
  174. math

    student tickets to the school musical cost $3 each. All other tickets cost $5 each. Suppose that 272 tickets were sold for a total of $1120. How many tickets of each type were sold?
  175. algebra

    how do I use the emlination method to slove the system of equation 5r + 3t = -1?
  176. math

    student tickets to the school musical cost $3 each. All other tickets cost $5 each. Suppose that 272 tickets were sold for a total of $1120. How many tickets of each type were sold?
  177. Comp 155

    Explain the key differences between the types of essays.
  178. Comp 155

    What is an analysis essay?
  179. Management Theory, Practice, and Application

    How has management changed due to the increased role of globalization? Would a good leader in one country automatically be a good leader in another country? What characteristics should a leader have to make them successful globally?
  180. algebra

    2 5/8* 24* 6 2/3 *=time, multiply
  181. Math

    3(7-4)^2??
  182. Math

    Two employees are painting wall. A takes twice as long as B to paint the same area. During a typical 8-hour day, A works the full 8 hours, but B takes a 2-hour break. A paints one way in a day. How many walls do both employees paint together? I need an
  183. Math

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