Questions Asked on
March 26, 2013

  1. precalculus

    Outside temperature over a day can be modelled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 90 and 70 degrees, respectively. Assuming t is the number of hours since

    asked by marie darling
  2. Scatter plots

    Which of the following types of information is NOT suited for display on a scatter plot? 1. relationship between age and number of books read in a year 2. relationship between height and shoe size 3. relationship between calories consumed and body weight

    asked by Mr.Brain
  3. Chemistry 140A

    A gas cylinder containing 6.38 mol of neon has a pressure of 491 mm Hg at 295 K. If 3.22 mol of helium is added to this cylinder, at constant temperature and volume, what will be the pressure in the cylinder?

    asked by Ashley
  4. Math Ms. Sue please

    1. Given the altitude of lakes in feet: –12, –9, –14, –39, –49, –49, –18, –43, find the mean, median, mode, and range. (1 point) mean = –28.5, median = –29.1, mode = –49, range = 40 mean = –29.1, median = –49, mode = –28.5,

    asked by Delilah
  5. Physics

    A test rocket is launched vertically from ground level (y=0m), at time t=0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 97 m and acquired a velocity of 40 m/s.

    asked by Renay
  6. physics

    Jesse travels 3.0 meters east and then turns and travels 4.0 meters north. The trip requires 35 seconds. What is his velocity?

    asked by keisha
  7. Soc. Studies-Ms. Sue

    What was the first territory to shed blood in a civil war over slavery? A.Texas B.Kansas C.Missouri D.South Carolina I know there was blood shed in Kansas-but there is info that South Carolina was the first territory that had blood shed??? Can you help me?

    asked by Cassie
  8. statistics

    The National AIDS Behavioral Surveys interviewed a sample of adults in the cities where AIDS is most common. This sample included 782 heterosexuals who reported having more than one sexual partner in the past year. We can consider this an SRS of size 782

    asked by Anonymous
  9. statistics

    About 24% of all homes purchased on 2004 were considered investment properties. a random sample of 800 homes sold in 2004 is obtained. What is the probability that at most 200 homes are used as an investment property?

    asked by Anonymous
  10. Consumer Math

    On your last credit card statement, you had a previous balance of $567.18, payments of $120, a periodic rate of 1.56 percent, and new charges totaling $45.17. What is your new balance?

    asked by Taylor
  11. Math Ms. Sue please

    9. Name the triangles that are classified by angles. (1 point) right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute I chose the answer "scalene, isosceles, equilateral" but the correct answer is "acute,

    asked by Delilah
  12. BIOLOGY

    The forward primer was provided by the manufacturer as a lyophilized powder. If the manufacturer delivers 127.4 nmoles of this primer, what volume of buffer should you dissolve it in to make a 100 μM stock?

    asked by JEQPCR
  13. math

    A basketball team needs 5 players. The team can choose from a group of 7 players. Explain how to find the number of combinations of players that can e on the team.

    asked by patty
  14. Physics

    The power radiated by the sun is 3.90 1026 W. The earth orbits the sun in a nearly circular orbit of radius 1.50 1011 m. The earth's axis of rotation is tilted by 27° relative to the plane of the orbit (see the drawing), so sunlight does not strike the

    asked by Elizabeth
  15. math help please

    19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir

    asked by Delilah
  16. economics

    Is your consumer behavior influenced by advertising or the news? Discuss one or two examples of media that have influenced your desires or affected your consumer choices

    asked by christian
  17. Chemistry

    Enough of a monoprotic acid is dissolved in water to produce a 0.0190 M solution. The pH of the resulting solution is 2.33. Calculate the Ka for the acid.

    asked by Ann
  18. Math (Please help)

    you need to make 20ml of a 20% glucose solution. I need to calculate the amount of glucose and water needed. I know that the M.W is 180.16 for glucose. Would I multiply 20ml times 20 percent first? Thank you!

    asked by Anonymous
  19. math

    How many integers satisfy the inequality \left| \frac { 10(x+1) } {x^2 + 2x + 3 } \right| \geq 1?

    asked by Austin
  20. CALCULUS HELP URGENT!!

    find y' if arctan(xy)=6+x^(4)y

    asked by Anonymous
  21. chemistry

    A generic salt, AB, has a molar mass of 293 g/mol and a solubility of 2.20 g/L at 25 °C. What is the Ksp of this salt at 25 °C?

    asked by charles
  22. physics

    A cargo plane is moving with a horizontal velocity of vx = +225 m/s at a height of y = 920 m above level ground as shown in the figure below when it releases a package. Ignoring air resistance, how much time will it take the package to reach the ground?

    asked by Dan
  23. physics

    As part of a fundraiser, you want the new dean to bungee jump from a crane. The jump will be made from 44 m above a 2.5 m deep pool of Jello. A 30 m long bungee cord would be attached to the dean's ankle. You must convince the dean that your plan is safe

    asked by Brandon
  24. chem

    Given that Ka for HClO is 4.0 × 10-8 at 25 °C, what is the value of Kb for ClO– at 25 °C? Given that Kb for CH3CH2NH2 is 6.3 × 10-4 at 25 °C, what is the value of Ka for CH3CH2NH3 at 25 °C?

    asked by Greg
  25. algebra

    A model car is constructed with a scale of 1 : 15. If the actual car is 12 feet long, which proportion represents the length x of the model car?

    asked by Danielle
  26. math

    Consider the sequence t0 = 3, t1 = 3^3, t2 = 3^3^3 , t3 = 3^3^3^3,….. , defined by t0 = 3 and tn+1 = 3tn for n ≥ 0. What are the last 2 digits of t3 = 3^3^3^3 ? Show that the last 10 digits of tk are the same for all k ≥ 10

    asked by kk
  27. Chemistry

    Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

    asked by Anonymous
  28. world history

    What characteristics did fascism under Mussolini and Hitler have in common with communism under Stalin?

    asked by Patricia
  29. Bisectors in a Triangle

    Let ABC have side lengths AB=13, AC=14, and BC=15. There are two circles located inside

    asked by Knights
  30. chem

    The molar solubility of MgF2 at 25°C is 1.2 10-3 mol/L. Calculate Ksp. i got the euqation ksp= [F-]^2[Mg]2+ and plugged in 1.2e-3 and got 1.7e-9 but it is wrong. also this question If 0.0968 g of CaF2 dissolves per liter of solution, calculate the

    asked by hannah
  31. Physics

    The Navy wants a new airplane launcher for their aircraft carriers that is basically a large spring and your job is to determine the necessary spring constant. The launcher pushes the plane for a short distance along a much longer runway. During that same

    asked by Brandon
  32. tourism,geography,economics and math literacy

    What career can I do with geography,economics,tourism and math literacy

    asked by nompumelelo dube
  33. Physics

    At the train station, you notice a large horizontal spring at the end of the track where the train comes in. This is a safety device to stop the train so that it will not plow through the station if the engineer misjudges the stopping distance. While

    asked by Brandon
  34. economics

    Give an example of a fairly major purchasing decision you've made in your lifetime. How did you justify the purchase? How did you prepare for it financially once you decided to make the purchase?

    asked by christian
  35. Science

    About 10 percent of the earth’s surface are covered with glaciers today. Where are most of these glaciers found

    asked by T-perry
  36. AlgebraB-2

    A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = 0.04x+ 8.3x + 4.3, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of

    asked by Jennifer W.
  37. Math

    i need help on a couple of questions. I did all my other questions but i need a lot of help with the word problems... 1. The side length of a small square is s. A larger square has a perimeter of 124.8 cm. Its sides are 3.2 cm longer than those of the

    asked by Olly
  38. chemistry

    A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g-1 oC-1?

    asked by d
  39. Chemistry Solubility help!!!!!!!!!

    INFORMATION: [HCl] = 0.1388 M We placed 0.5 g Ca(OH)2 in 100 mL of the following solutions: Flask A: Distilled Water (7.4 mL of HCl needed to titrate) Flask B: 0.05 NaOH (12.1 mL of HCl needed to titrate) Flask C: 0.025 NaOH (10.8 mL of HCl needed to

    asked by Sally
  40. physical science

    during a race a runner runs at a speed of 6 m/s. 2 seconds later she is running at a speed of 10 m/s. what is runners acceleration? show your work.

    asked by trina
  41. Geometry

    ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If AO=AH, what is the value of \angle ABC (in degrees)?

    asked by Dan
  42. Math

    The cost of Admission to a fair is $10, plus $3 per ride. An equation for this relation is C=10+3r, where r represents the number of rides a person goes on, and C represents the total cost of admission and rides. Make a table of values for the relation .

    asked by Cherie
  43. chemistry

    85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer

    asked by Joshua
  44. Physics

    A stainless-steel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.42 cm and a radius of 0.14 mm. If the wire is stretched 0.13 mm, find the magnitude and direction of the force on the tooth. Disregard

    asked by Sam
  45. chemistry

    A metal block of mass 11.5 g gives off 360 J of heat while cooling from 99.7 to 32.5 oC. What is the specific heat of the metal in J g-1 oC-1?

    asked by d
  46. lit

    what are the symbols of the story tuesday siesta?

    asked by lauren
  47. maths

    Suppose there are 10 coins laid out in front of you. All of the coins are fair (i.e. have an equal chance of heads or tails) except one, which flips to heads every time. You draw one coin at random and flip it 5 times. If each of the 5 flips results in

    asked by sana
  48. chemistry

    A piece of solid carbon dioxide with a mass of 5.60 g is placed in a 10.0-L vessel that already contains air at 715 torr and 23 C

    asked by Anonymous
  49. Physics

    Your artist friend's new work is a simple, high-impact kinetic sculpture called 'Destruction.' A 200-kg steel block is hung from the ceiling by an 8-foot-long rope. A second rope is attached to the side of the block. The other end of this second rope is

    asked by Brandon
  50. Math-Population Word Problem

    The population of rabbits in a national forest is modeled by the formula P=8,600+650 ln(t+1) where "t" is the number of years from the present. a)How many rabbits are now in the forest b)Estimate when it will take for the number of rabbits to reach 12,000?

    asked by Jake
  51. Math(Please help) Thank you

    How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

    asked by Anonymous
  52. English

    1. The purpose of evaluating the sources of your research material is to test: A. the currency of information. B. the reliability of the information. C. whether the information is scholarly. D. which Web sites are legitimate. im confused between B & C 2.

    asked by Amy
  53. MATH, 3rd time i posted this

    can someone please help me, i posted this like 3 times. i need help on a couple of questions. I did all my other questions but i need a lot of help with the word problems... 1. The side length of a small square is s. A larger square has a perimeter of

    asked by Olly
  54. physics

    Starting from rest, a 10.7 kg block slides 2.60 m down to the bottom of a frictionless ramp inclined 30.0° from the floor. The block then slides an additional 4.70 m along the floor before coming to a stop. (a) Determine the speed of the block at the

    asked by Rob
  55. Statistics

    A standard deck of 52 playing cards is composed of 4 suits. Each mix contains 13 cards. Jacks, Queens, and Kings are considered face cards. Assume three cards are selected without replacement. Calculate the probability of drawing two hearts, followed by a

    asked by Bill
  56. Physics

    The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.7 × 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.23 m2. How much energy does this wave carry

    asked by Anonymous
  57. Calc.

    A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built- one long side is already there). The short side walls of the run are to be cinder

    asked by John
  58. chemistry

    85.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.2, what is the mass of the steel bar? Specific heat of water = 4.18 Specific heat of steel = 0.452 My answer

    asked by Joshua
  59. Chemistry

    Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?

    asked by Chantèl
  60. Statistics

    Assume the weights of men are normally distributed having a mean of 185 lbs and a standard deviation of 17 pounds. A. Calculate the probability a randomly selected man weights less than 225 lbs B. Approximately 72% of men’s weights exceed how many

    asked by Bill
  61. Physics

    The ion source in a mass spectrometer produces both triply and quadruply ionized species, X3+ and X4+. The difference in mass between these species is too small to be detected. Both species are accelerated through the same electric potential difference,

    asked by Anonymous
  62. HUMAN AND ENVIRONMENTAL

    PROVIDE RECOMMENDATIONS ON HOW TO ADDRESS THE TOPIC THAT YOU IDENTIFIED IN THE PREVIOUS QUESTION

    asked by PHINDULO
  63. math

    A cleaner charges $0.50 per square foot to polish wood floors. A school hall has an area of 30 feet by 50 feet. What would be the total cost to polish the floor of the school hall? A.$80 B.$375 C.$750 D.$1,500 What is the answer?

    asked by jenny
  64. algebra 1

    the population of a city can be modeled using the equation p=40,000x(9/10)^x. one year the population was 23620. what was the following population a year later.

    asked by Anonymous
  65. Biochemistry

    Volume of reaction flask is 2ml. There are 273 nanomoles of molecular oxygen (O2)/ml of reaction volume at 25*C. What is the amount of atomic oxygen (nanomoles) in the reaction flask?

    asked by Chantèl
  66. math

    TOM bought a rectangular piece of land that was 3 miles long and 2 miles wide .Half of the land could be farmed .How many square miles could not be farmed?

    asked by Doris
  67. Science

    7. Which of the following changes gives no evidence that a chemical reaction has taken place? A cube of solid forms a puddle of liquid. A certain liquid is added to a solid, and bubbles of gas form. Two liquids are mixed, and a precipitate forms. Heating a

    asked by SpiersTheAmazingHd
  68. Geometry

    When you use the distance formula, you are building a _____ triangle whose hypotenuse goes between two given points. A.right B.equilateral C.acute D.None of these

    asked by Brad
  69. Math

    How would you go about making 250ml of a 20X stock solution of NaCl to dilute later to a final concentration of 50mM? I know that the molecular weight of NaCl is 58.44 but I am not sure where to start. I need to figure out the amount of NaCl and water

    asked by Anonymous
  70. math

    pat gave $24 to mary and linda in the ratio 1:3. how much money does linda get?

    asked by sam
  71. geometry

    what is tan-1 3.5= to

    asked by joan
  72. English

    1. A global network connecting millions of computers worldwide is called: A. the World Wide Web. B. Facebook. C. the Internet. D. Internet Service Provider. is it C 2. Information with subject directories is categorized according to: A. references. B.

    asked by Amy
  73. chemistry

    A generic salt, AB, has a molar mass of 293 g/mol and a solubility of 2.20 g/L at 25 °C. What is the Ksp of this salt at 25 °C?

    asked by charles
  74. Pre-cal

    Convert from DMS to Radians 1) 61degree 24' 2) 75degree 30' Convert from Radians to Degress 1) 2 2) 1.3 Please help how to solve and calculate it in calculator. I got confused. :( :)

    asked by Isis
  75. math

    Paul grew an average of 1/2" a month last year. If he was 4' 6" tall at the beginning of the year, how tall was he at the end of the year?

    asked by Anonymous
  76. Geometry

    ABCD is a quadrilateral inscribed in a circle with AB = 1, BC = 3, CD = 4 and DA = 6. What is the value of \sec^2 \angle BAD?

    asked by Austin
  77. Math

    Prove: If the hypotenuse and an acute angle of one triangle are congruent respectively to the hypotenuse and an acute angle of another right triangle, then the two triangles are congruent.

    asked by Barb
  78. chemistry

    A certain weak base has a Kb of 8.40 × 10-7. What concentration of this base will produce a pH of 10.34?

    asked by Anonymous
  79. Physics

    At the State Fair you see people trying to win a prize at a game booth. They are sliding a metal disk shaped like a puck up a wooden ramp so that it stops in a marked zone near the top of the ramp before sliding back down. You estimate that you can slide

    asked by Brandon
  80. Collage Physics

    n elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

    asked by Sian
  81. Physics

    A stationary particle of charge q = 1.4 10-8 C is placed in a laser beam (an electromagnetic wave) whose intensity is 3.5 103 W/m2. Determine the magnitudes of the (a) electric and (b) magnetic forces exerted on the charge. If the charge is moving at a

    asked by Elizabeth
  82. Math

    Tom bought a rectangular piece of land thatwas 3 miles long and 2 miles wide . Half of the land could be farmed . How many square milescould not be farmed .

    asked by Doris
  83. math

    Tricia wants to determine the probability of getting two 1’s when two number cubes are rolled. She makes a tree diagram and uses it to list the possible outcomes

    asked by xy
  84. multivariable calculus

    Find the equation of the plane containing the points (1; 0; 0), (0; 2; 0) and (2; 1; 3).

    asked by cheuk
  85. Algebra

    What is the sum of all integer values of n satisfying 1 \leq n \leq 100, such that n^2 - 1 is a product of exactly two distinct prime numbers?

    asked by Jack
  86. 7th grade math

    company A makes boxes of crackers that contains a mean of 30 crackers with a standard deviation of 2 crackers. company B makes boxes of crackers that contains a mean of 24 crackers with a standard deviation of 2 crackers. what can be said about the boxes

    asked by dingbat
  87. Algebra

    Find the smallest positive integer N \neq 23 such that the fraction \frac {N-23} { 7N+6 } is not in simplest terms.

    asked by John
  88. Geometry

    Determine the number of subsets of A=\{1, 2, \ldots, 10\} whose sum of elements are greater than or equal to 28 .

    asked by Dan
  89. Maths

    Solve for X: log4(3x-7)^2 = 10

    asked by Jeconiah
  90. chemistry

    for the reaction of 14.69 g of ethyl alcohol with 22.5 g of oxygen. which is the limiting reagent? how much CO2 will be produced? if 19.5 g of CO2 is actually produced, what is the percent yield? C2H5OH(1) + 3 O2 (g) - 2 CO2 (g) + 3H2O(g)

    asked by alex
  91. chemistry

    Suppose 87.9 grams of FeCl3 reacts with excess aluminum metal to produce 22.3 grams of Fe. What would be the % yield? FeCl3 + Al --> AlCl3 + Fe

    asked by Amy
  92. Life orientation

    3 environmental health hazard that cause ill health, crises and disasters

    asked by Aluwani
  93. Calculus 1A

    I am trying to find: dy/dx for y = sec(tan x) I have the answer, but I have no idea how to get there. I know that the derivative of sec x = sec x tan x and that the derivative of tan x is sec^2 x. But sec doesn't have an x, so ...?

    asked by Mary
  94. Math

    A dog kennel owner needs to build a dog run (rectangular area) adjacent to a kennel cage (so that it is in the shape of a rectangle, but only three sides need to be built- one long side is already there). The short side walls of the run are to be cinder

    asked by Anonymous
  95. Chemistry

    How much silver is present in 3.5 ml of a 1 molar silver nitrate solution?

    asked by Lindsey
  96. Physics

    A beam of polarized light with an average intensity of 17.1 W/m2 is sent through a polarizer. The transmission axis makes an angle of 27° with respect to the direction of polarization. Determine the rms value of the electric field of the transmitted beam.

    asked by Elizabeth
  97. engineering physical

    An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

    asked by Sian
  98. Chem

    1)Which cations should form soluble sulfate compounds from (Sodium, calcium, silver, copper 2)? 2) which anions should form precipitates with barium ions from (sulfate, carbonate and iodide?) 3) which anions should form precipitates with silver ions? Write

    asked by Katlyn
  99. chemistry

    53.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL. A 129-mL portion of that solution is diluted by adding 195 mL of water. What is the final concentration? Assume the volumes are additive.

    asked by Jen
  100. Chemistry

    Which precipitate should react when HCl is added? Give REASONS for your prediction. The anions i have are Co3 and SO4 i wrote none of them react with HCl. I don't know what to write for the reason though please help me woth this one. Thanks!!!!

    asked by Katlyn
  101. Science

    Which part of an electric circuit resists the flow of charge when it changes electrical energy into other forms of energy? A. battery B. copper wires C. switch D. light bulb

    asked by bubbie
  102. GRADE 12

    IN 10-15 LINES CRITICALLY DISCUSS 5 WAYS IN WHICH THE HUMAN OR ENVIRONMENTAL PROBLEM IMPARTS ON THE COMMUNITY .PROVIDE RELEVANT SOURCES TO SUPPORT YOUR CLAIMS

    asked by PHINDULO
  103. Trigonometry

    If \cot \left(\sin^{-1} \frac{1}{5}\right) = m, what is the value of m^2?

    asked by Steven
  104. Language Arts

    pixie : giant :: kitten : lion Write the relationship phrase you used to complete this analogy.

    asked by Gwen
  105. Social Studies

    How did social controls shape Japenese identity and citizenship. In your response be sure to discuss the areas of religion and class structure. Please help as I do not really understand the question

    asked by Cherie
  106. Language Arts (unfortunately, once again)

    I hate to ask a similar question twice, but I am unable to describe the relationship between slain : snail :: flair : frail. I know the first three of five letters are switched, so would my relationship phrase be "switched" or "is switched to?"

    asked by Gwen
  107. math

    In factoring ax^2 + bx + c, what are the steps in finding the unknown "b"?

    asked by Jane
  108. Statistics

    In a certain game of chance a person pays $5 to play a game. A person randomly selects 2 integers ranging from 0-99. The host of the game then uses a random number generator to select 2 integers ranging from 0-99. If the players values and hosts values

    asked by Bill
  109. chemistry

    i am going crazy trying to figure this out. i just completed an experiment with heats of fusion and vaporization but for some reason i cant answer and explain this question would 20.0g of steam at 100 degree celsius be enough to melt 20.0g of ice at 0

    asked by stazi
  110. 6th Grade Math

    Need help to explain to my daughter: A horsepower is the power needed to lift 33,000 pounds 1 foot in 1 minute. It is equivalent to 746 watts. Express 525 watts as a portion of a horsepower both as a fraction and a decimal rounded to the nearest

    asked by Rick
  111. English

    1. Research skills are fundamental to: A. academic writing. B. all types of writing. C. education, literature, business, and other industries. D. libraries. is it B

    asked by Amy
  112. math trigonometry

    There is a small circle and a big circle. A small circle has a radius of 1.5. What is the area of the big circle?

    asked by joshua joyo
  113. algebra

    is 5x + 2y = 8 look like horizontal, vertical, slanted right upwards,slanted right downwards?

    asked by jr
  114. Soc. Studies

    How did the 1860 election contribute to the breakup of the Union? A.by electing a president many believed would not protect Southern rights B.by electing a pro-slavery president whom the North would not tolerate C.by allowing freed slaves to vote D.by

    asked by Cassie
  115. Collage Physics

    An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before

    asked by Sian
  116. social studies

    Were there any key events in Millard Fillmore's life that shaped their dream for the United States?

    asked by Boobear
  117. Math

    Calculate the morality of a solution made by mixing 250ml of 0.75M H2SO4 with 400ml of 2.5MH2SO4

    asked by Alica
  118. science

    at a construction site a crane lifts a block of mass,m,vertically upwards through a height of 70 m at constant speed by means of a strong cable.The block experiences a force of magnitude 8 N as a result of air friction as it is lifted vertically upwards.

    asked by Thalente
  119. Algebra

    a and b are digits such that \overline{120ab} is a multiple of 3, 5 and 7. What is the value of \overline{ab} ?

    asked by Anonymous
  120. grammar

    I [ran] around the track four times at the previous football game. OR I [have run] around the track four times at the previous football game?

    asked by Celest
  121. Atmosphere (weather)

    Finish this sentence. Why is the sky blue? The sky is blue because please help me!!

    asked by Adaija
  122. Math

    log(x-2) +log8 (x-4) =log6 (x-1)

    asked by Jeconiah
  123. Form a polynomial f(x)

    Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i f(x)=a( )

    asked by Ashley
  124. chemistry

    How many grams of ZnCl2 will be produced from 48 grams of zinc and 30 grams of HCL

    asked by walter
  125. Use the intermediate value

    Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=4x^3+6x^2-7x+1; [-4,-2] f(-4)=

    asked by Ashley
  126. Statistics

    Use this information to calculate the mean and standard deviation of this random variable. P(x)- .25, .05, .55, .15

    asked by Bill
  127. College Algebra! help!

    Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -4; -i; -2+i f(x)=a( )

    asked by Hailey
  128. chemistry

    i am going crazy trying to figure this out. i just completed an experiment with heats of fusion and vaporization but for some reason i cant answer and explain this question would 20.0g of steam at 100 degree celsius be enough to melt 20.0g of ice at 0

    asked by stazi
  129. algebra 10th grade

    please help with this problem Your dad is taking Biology as part of the veterinarian program at the local community college. This semester he will spend a total of 40 hours in the biology lab, and he will take notes in class 6 hours per week. Define a

    asked by mary
  130. History 203

    What is the purpose of studying American history? What do we gain from doing so?

    asked by Dottie
  131. Statistics

    A pharmaceutical company claims its new medication relieves painful symptoms caused by tension headaches within 15 minutes. To investigate this claim, a local health clinic conducts a study of 45 patients who suffer from chronic tension headaches. Each

    asked by Bill
  132. algebra

    marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75

    asked by Anonymous
  133. Math

    Chiang picked 12 apples. She gave 1/6 of the apples to each of her 5 friends. How many apples did each friend get?

    asked by Anonymous
  134. english

    Which of the following is NOT a potential consequence of plagiarism? A. Academic warning B. Academic probation C. Failing the course D. Cancellation from program im confused between C & D

    asked by Amy
  135. physics

    A particle with a +5.0 µC charge and a kinetic energy of 0.090 J is fired into a uniform magnetic field of magnitude 0.30 T. If the particle moves in a circular path of radius 3.0 m, determine its mass.

    asked by erika
  136. social studies!!!

    Does anyone know ten DIFFERENT physical features of algeria( in africa) !! If anyone can give me them ur aa life saver"!

    asked by leslie
  137. Chemistry

    If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl?

    asked by Shoba
  138. Calculus

    does the sum 3/(2^(n)-1) converge or diverge? n=1--->infinity

    asked by Liz
  139. College algebra

    Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=x^3-2x^2-13x-10 x=

    asked by Karlee
  140. computer science

    This week you will determine the time complexity for a game of your choice. You should select a game that can be played in algorithmic steps and determine the maximum time (in notation) it will take to play the game. Use the guidelines below in your

    asked by Auto
  141. math pre calculus

    find the following for the function f(x)=(x+5)^2(x-2)^2 a.find the x and y intercepts, b.find the power function that the graph ressembles for large values of x c.determine the maximum number of turning points on the graph of f d.determine the behavior of

    asked by laila
  142. pre calculus

    use the seven step method to graph the following rational function: f(x)=3x^2+x-4/2x^2-5x a. determine the symmetry of the function. b. find the x and y intercepts. c. find the verticle asymptote d.find the horizontal asymptote e.plot the points between

    asked by asia
  143. Maths

    Solve for x: 6log(x^2 +1) - x = 0

    asked by Jeconiah
  144. english

    "Panda Monium" I heard this from news could you please explain the meaning of this?

    asked by naomie
  145. geography

    The OB river flows through which region a. Central Asia b. Siberia c. Moldova d. Ukraine a or b not sure I think B is more correct am i right?

    asked by Emily
  146. chemistry

    how many moles of O2 are contained in 6.53 L with 297 K and 6.6 atm

    asked by caroline
  147. College Algebra

    Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i F(x)=a ( )

    asked by Chama
  148. 10 grade algebra

    solve 10(x+5)=130

    asked by mary
  149. physics

    A 2.6-kg particle moving along the x axis has a velocity of +1.7 m/s as it passes through the origin. It is subjected to a single force, Fx, that varies with position, as shown below.

    asked by Brandon
  150. History of Puerto Rico

    Need info in English on biographies of political and cultural leaders of Puerto Rico between 1850-1950

    asked by Ralph
  151. Math

    Factor 4xsquared-36x+81=0

    asked by Dylan
  152. history

    Why is john sutter important in California history? What types of natural resources would Fremont have listed in his reports?

    asked by PLEASE HELP
  153. edu

    Emergent literacy skills are enhanced by a.quantity and quality of print and audio-visual resources b. the family socio-economic status and aspirations c.engaging in literacy event with other persons especially adults d. the educational or professional

    asked by ray
  154. history

    List the mexican war battles in order, by date.

    asked by suzy
  155. PHYSICS......

    Q1.a building has three alternative routes from the ground to the first floor. i)a flight of stairs at an angle of 45 degree. ii)a near flight ladder angle 85 degree. iii)a long zig-zag slope at an angle of 15 degree. what are the disadvantages and

    asked by Riana
  156. Statistics

    A Manufacturer of torque converters claim only 1% of them are defective. A. Calculate the Mean number of defective converters in a shipment of 500 converters. B. Calculate the standard deviation in the defective torque converters in a shipment of 500

    asked by Bill
  157. Calculus

    Implicit differentiation of 5x^2-2xy+7^y

    asked by C
  158. Statistics

    According to a recent pole only 21% of Americans were satisfied with the direction the U.S. is heading. To investigate the reliability of the report an independent polling organization surveyed 500 Americans and inquired as to whether or not they were

    asked by Bill
  159. Allgerbra

    Please show me step by step how to Make a table of solutions for the equation,and then use the table to graph the equation. y = 2x -1

    asked by Eric
  160. world history

    What are two important differences between fascism and communism?

    asked by Patricia
  161. English

    The a in the word saving sounds like A. Ape B. pat C. Heated D. Naughty Is it a

    asked by Tony
  162. English

    When there are thousands of written materials floating in cyberspace, what is the most important criterion to consider when choosing sources of information for your research paper? A. Relevant B. Current C. Famous author D. Impressive Web site is it A

    asked by Amy
  163. Algebra

    simplify k+5 _____ 30k _______ 5k-1 _____ 6k

    asked by Jon
  164. Math

    i did the other one but can someone help me with this one: Four = fifths of the sum of a number and three is equal to six and a half. What is the number? also ms. sue deleting my question was not very nice because it took me forever to type it and if you

    asked by Ryley
  165. Chemistry

    If your solution’s final volume of 32.55 mL yields 3.6 grams of AgCl, determine the Molarity of the final solution. Also, how many milliliters of a 1.85 M solution of AgNO3 did you add to an excess of aqueous NaCl to provide the 3.6 grams of AgCl?

    asked by Shoba
  166. analytical chemistry

    compund x is known to absorb at 510nm. If you dilute a solution containing x by 1/4, by how much does the absorbance increase or decrease. if it stays the same just state it stays the same.why

    asked by ami
  167. stats

    A researcher is interested in examining whether knowledge of a previous criminal record will affect the juryfs decision to acquit or convict the defendant. The researcher shows 15 participants a 4-hour trial in which a woman is accused of passing bad

    asked by Anonymous
  168. Calculus

    Is the series 2/ln(n) convergent or divergent? n=3 to n=infinity

    asked by Liz
  169. Physics

    The ion source in a mass spectrometer produces both triply and quadruply ionized species, X3+ and X4+. The difference in mass between these species is too small to be detected. Both species are accelerated through the same electric potential difference,

    asked by Anonymous
  170. mathematics

    Solve simultaneous... y-2x-1=0 and x squared+xy-5x-y+2=0

    asked by Jossie
  171. science

    Monique heated the black substance with some corbon. Copper was formed. what are all the elements in the blue crystals ?

    asked by Anonymous
  172. Algebra

    Write the expression as a complex number in standard form. ____5____ 2- i =2+5i Did I get the right answer?

    asked by Emma
  173. c-justice 200

    Should judicial review be eliminated? Provide a detailed explanation for your answer. b) If judicial review were eliminated, what alternative means could be used to interpret the meaning of the Constitution?

    asked by heather
  174. multivariable calculus

    Describe the level surfaces of g(x; y; z) = x2 - 2y2 + z2

    asked by cheuk
  175. Math

    The interior dimensions of a chest are 4 feet length, 2 feet width and 3 feet height. How many 1-foot cubes could fit in the chest?

    asked by Anonymous
  176. math

    Write the standard form of the equation of the circle x^2+y^2+4x-2y-20=0. Find the center and radius. How do I do this? pleaaase help.

    asked by ayonna
  177. Math

    Hiro went to the store after school to pick up groceries. His list said he needed to pick up one jug of milk, one loaf of bread, one dozen eggs and one package of cookies. Milk comes in 1%, 2% and 3.25% varieties. Bread comes in white and 100% whole wheat.

    asked by Steve
  178. geometry

    The volume of a small circle is 10 cubic meters. Find the volume of the larger sphere in cubis meters.

    asked by Bryce
  179. chemistry

     Which 0.10M solution below has the lowest pH? a) NaCl          b) KCN          c) LiF          d)  RbClO     e)  all have the same pH​

    asked by Anonymous
  180. Science

    What are the four main gases in our atmosphere? Carbon dioxide oxygen nitrogen? I searched it up and it says argon is the other one but we haven't learned about that yet Would hydrogen be a main gas?

    asked by Jerald
  181. Calculus-PLZ HELP! =)

    does the sum 3/(2^(n)-1) converge or diverge? n=1--->infinity

    asked by Sara
  182. Algebra

    Let N=11 ^ 2 \times 13 ^ 4 \times 17 ^ 6 . How many positive factors of N^2 are less than N but not a factor of N?

    asked by Anonymous
  183. Physical Science

    Which part of an electric circuit resists the flow of charge when it changes electrical energy into other forms of energy? A. battery B. copper wires C. switch D. light bulb i've posted this before but it's getting buried. i don't think its A or B.

    asked by bubbie
  184. Use the rationals theorem

    Use the rationals theorem to find all the zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x)=2x^3-x^2+2x-1

    asked by Karlee
  185. Geometry

    When writing a math expression, any time there is an open bracket "(", it is eventually followed by a closed bracket ")". When we have a complicated expression, there may be several brackets nested amongst each other, such as in the expression (x+1)*((x-2)

    asked by jason
  186. Use the intermediate value

    Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=9x^4-3x^2+5x-1;[0,1]

    asked by Jenn
  187. MATH

    use the discriminant to determine whether the following equation have solutions that are : two different rational solutions : two different irrational solutions : exactly one rational solution : or two different imaginary solutions 7+5z^2=-8z

    asked by LIZY
  188. Physics. LAST PROBLEM!!

    A small metal ball with a mass of m = 82.5 g is attached to a string of length l = 1.72 m. It is held at an angle of θ = 58.5° with respect to the vertical. The ball is then released. When the rope is vertical, the ball collides head-on and perfectly

    asked by Elena
  189. Physics, so confused

    A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I am not sure how to find this answer without

    asked by Morgan
  190. College algebra

    Form a polynomial f(x) with the real coefficients having the given degree and zeros. Degree 5; Zeros: -3; -i; -6+i f(x)=a( )

    asked by Ashley
  191. math

    alicie plans to use a square iece of plywood forthe tabletop. She wants to put tiles on each outside edge of th taletop Each tile measures 2 inche by 2 inches of each outside edge of the tableop

    asked by roger
  192. Maths

    Simplify the following: (54^1/4)/ (6^3/4)(12^-1/2)

    asked by Jeconiah
  193. Social Studies

    Writeacher The period of time fir the social question is the Edo period. Sorry about thar!

    asked by Cherie
  194. Maths

    Find the vakue of x: (1)logx2 = 2 (2) log3x^2 = -1

    asked by Jeconiah
  195. 10 grade algebra

    Solve the equation 2(x =10)=80

    asked by mary
  196. maths

    how can i find a general solution of g(x)when they give me g(X) =cos (x+30)and g(X)= -2sinx

    asked by mazandie Magaduzela
  197. Chemistry

    If you have 20.0g of a Maalox tablet, and 40mL of .1 M HCI, how much extra help from NaOH would you need to bring the acid to neutral? Back titrate using .05 mL NaOH, drop by drop. Please put this into a formula for me to figure out. Thanks.

    asked by Pam
  198. NEEDS TO BE TURNED IN IN 5 MINUTES!! HELPPPP

    find y' if arctan(xy)=6+(x^4)y

    asked by Anonymous
  199. History

    which native american tribes called New Mexico their home?

    asked by PLEASE HELP
  200. math

    for the given functions f and g, find the specified value of the following functions and state the domain of each one. f(x)=2+3/x; g(x)=3/x a.(f-g)(2)= b.(f/g)(3)= how do I do this? I need help! it throws me off because of it being in fraction form.

    asked by marie
  201. English

    I have to annotate some notes and I'm not sure what a couple of these terms mean, your help would be much appreciated! Unifying Effect Analytical Writing Thesis Statement

    asked by Amber
  202. PHYSICS - formula?

    Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a

    asked by Anna
  203. science

    How would life be different without resources taken for under earth's surface?

    asked by Anonymous
  204. physical science

    what is the electric force of attraction (in newtons) between a proton and an electron? assume the distance between them is 5*10 negetive11 meter

    asked by joycelyn
  205. Medical Billing

    Np pt having foot pain centering around rt great toe and sometomes shooting up her leg. PF exam revealed severe overgrowth og nail into surrounding tissues. Pt has a n workup for gout by the doctor. Surgery scheduled for wedge resection of skin of nail

    asked by Anonymous
  206. math

    can you divide a fraction into another fraction?

    asked by Martin
  207. Microeconomics

    Zuppann, Inc. has just completed a study of its production process for gadgets. It uses labor and capital to produce gadgets. It has determined that 1 more unit of labor would increase output by 200 gadgets. However an additional unit of capital would

    asked by Hannah Wannans
  208. Statistics

    A Manufacturer of torque converters claim only 1% of them are defective. A. In a shipment of 12 torque converters calculate the probability exactly 2 converters are defective. B. In a shipment of 35 converters, calculate the probability at least 1

    asked by Bill
  209. Statistics

    Assume the wait time to see a cardiologist at a certain clinic are uniformly distributed between 7 minutes and 23 minutes. Calculate the probability a randomly selected patient waits at least 18 minutes to see the cardiologist. The random variable, Z, is

    asked by Bill
  210. algerba

    2k squared + 4k= 10 How would I solve

    asked by suzy
  211. algebra 1

    which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d

    asked by Anonymous
  212. math

    what would 1.25 be as a fraction?

    asked by Martin
  213. algebra

    solve for "x" in the following equation: 27x-3(x-6)= 6 F: -2 G: -1/2 H: 1/2 J: 2

    asked by Anonymous
  214. chemistry

    why spectrophotometric bioassay indirectly determine the concentration of glucose in solution

    asked by amin
  215. math

    can someone tell me what would 0.0625 be as a fraction?

    asked by Amanda
  216. MATH

    IF LOAN BALANCE IS 34,000.00 AND YOU PAY $597.21 MONTHLY AT 7.50 INTEREST HOW MUCH TIME WILL YOU CUT OFF TERM OF LOAN IF YOU ADD 100.00 TO MONTHLY PAYMENT

    asked by LILLY
  217. math

    and what would 0.1875 be as a fraction?

    asked by Amanda
  218. Find the complex zeros

    Find the complex zeros of the polynomial function. Write f in the factored form. f(x)=x^3-3x^2+7x-5 f(x)=

    asked by Ashley
  219. math

    marissa earns $3.75 per hour at a local fast food restaurant. write an expression for the amount she earns and determine how much she is going to earn in 7 hours. A: 3.75x;$26.25 B: 7x;$26.25 C: 3.75x + 7x;$10.75 D: 7x;$3.75

    asked by Anonymous
  220. math

    the function f is defined: f(x)= x+3 if -2

    asked by mercedes
  221. math

    4/x=radical11-1/3

    asked by amber
  222. physics

    A water tower is 100m tall and has a diameter of 0.77 cm^3, what is the velocity of the water?

    asked by alexis
  223. social studies

    Can't unscramble 3 middle eastern names...ihaaBm, Bpsouors, hrpuitReE esavr

    asked by jen
  224. Broadcasting/english

    FYI it's in ALL caps because our teacher requires it.. But can someone read through my story I got off mlive and see if some corrections need to be made. I'm not sure If i did it right FORMER DETROIT POLICE OFICER IS ACCUSED OF LYING IN COURT IN ORDER TO

    asked by Blaze
  225. Physics

    A brick is thrown off a building at a 25 degree angle at 10m/s, it lands 40 meters away, How high is the building?

    asked by Joshua
  226. math

    6 male students and 3 female students sit around a round table. The probability that no 2 female students sit beside each other can be expressed as a/b, where a and b are coprime positive integers. What is the value of a+b?

    asked by ritvik
  227. Life orientation

    Identify and describe 3 enviromental health hazarda that cause ill health, crises in your community and globaly

    asked by Mpho
  228. Algerbra

    Solve the equation 15(x+3)=75

    asked by Eric
  229. algebra

    Please Helpppp!!! Mother having a hard time with radicals. A playground is shaped like a rectangle with a width 5 times its length (l). What is a simplified expression for the distance between opposite corners of the playground? Please can you post

    asked by Kristine
  230. PHYSICS

    Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :) A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a

    asked by Sarah
  231. algebra 1

    on january 1,1997 you deposit $200.00 in a bank account paying 5% interest compunded annually on december 31 of each year. which of the following will be the account balance on january 1,2005

    asked by Anonymous
  232. math

    -(-2)^0*(-2)^3*(-2)^-4/(-2)^3

    asked by Rose
  233. multivariable calculus

    Consider the surface given by the equation: 2x2 - 3z2 - 4x -4y - 12z + 2 = 0 (a) Write in standard form ) (b) Determine and classify the traces with planes parallel to the xy-, xz- and yz- planes. (c) Hence classify the surface.

    asked by cheuk
  234. algebra 1

    on january 1,1997 you deposit $200.00 in a bank account paying 5% interest compunded annually on december 31 of each year. which of the following will be the account balance on january 1,2005

    asked by Anonymous
  235. Dynamic

    A block of mass m is released from a height of R. The block slides down along the path ABC. At point C the block collides a spring of sti ness k. (a) If the circular arc AB is frictionless and the coecient of kinetic friction between the block and surface

    asked by None
  236. business

    what is the purchase price of eight soft corporation bonds with an annual interest rat of 8 1/2% and a current market price of 83? The commission charge is $5 per bond. the date of the transaction is January 1, and the bond pays on Otober 1 and april 1.

    asked by angel
  237. Life orientation

    Discribe the life style of cancer and explain 5(more) factors that contribute to the cancer

    asked by Lucky
  238. physics

    How to calculate the series AC coupling capacitance? Is there an equation for this? Thank you for any help

    asked by Sarah
  239. maths

    An iron rod when cut into pieces each of 30 cm length, a piece of 7 cm is left out. However, if each piece is of 28 cm length, a piece of 5 cm is left out. What is the length of the shortest such rod?

    asked by chandana
  240. Algebra

    As x ranges over all real values, what is the minimum value of f(x)=|x-123|+|x-456| + |x-789|

    asked by Stranger
  241. English

    "The song of Wandering Aengus" is a (n) ________poem. A: epic B: allegorical C: dramatic D: prose Answer : C ?

    asked by Ciara
  242. Calculus

    What is the connection between improper integrals, Riemann sums, and the integral test?

    asked by Kendra
  243. English

    For the speaker in "Local Sensibilities,"pineapples represent: A: His favorite food. B: A Thanksgiveing ham. C: tourists D: work. Answer: B ?

    asked by Ciara
  244. math

    find the area of a table top with 7/8 of a foot length and 3/5 of a foot wide.

    asked by tara
  245. English

    The tone of "A smile" is ? A: Hopeful B: Cheerful. C: tense D: light Answer : D In "Boast Not , Proud English," the writer is protesting against: A: Prejudice B: Blasphemy C: Religion D: tolerance Answer: C ? In "Birches," Frost compares the broken ice

    asked by Ciara
  246. Physics

    A 5.50-kg ball, moving to the right at a velocity of +2.35 m/s on a frictionless table, collides head-on with a stationary 7.60-kg ball. Find the final velocities of the balls if the collision meet the following conditions. (a) elastic 5.5-kg ball =

    asked by Anonymous
  247. Science

    When hot magma rises toward the crust the process is called what

    asked by Jerald
  248. Algebra

    Consider all 2 digit numbers N such that the last 2 digits of N^2 are N itself. What is the sum of all these 2 digit numbers?

    asked by John
  249. math

    solve the polynomial inequality and graph the solution set on a real number line. set in interval notation. x^3+2x^2-4x-8>0 I have been staring at this problem for the last 15 minutes because I just don't understand it, somebody please help me?

    asked by adrienne
  250. algebra 1

    which equation models an exponential decay y=1/4x500^x 1/3y=6x100^x y=0.5x8^x y=23x(1/2)^x y=0.004x2^x i think it is d

    asked by Anonymous
  251. Geometry

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b

    asked by jason
  252. Pre-calculus

    Convert from DMS to Radians 1)61degree 24' 2) 75degree 30' Convert from Radians to Degrees 1) 2 2) 1.3 Please Help me, just tell me how to solve them and do it in the calculator.

    asked by Isis
  253. Geometry

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b

    asked by jason
  254. Math

    6 quarters, 4 dimes, 3 nickels, 10 pennies. what is the probability you will get at least one of each coin in change of 1 dollar

    asked by Grace
  255. Geometry

    ABC is an isosceles triangle where AB = AC and BC = 60. D is a point on BC such that the perpendicular distance from D to AB and AC is 16 and 32, respectively. What is the length of AB?

    asked by Dan
  256. calculus 1

    differentiate x(x-3)^2 do I product and chain rule?

    asked by visoth
  257. science

    should'nt i use the equation mgh+half mv^2before=mgh+half mv^2aftr?

    asked by Thalente
  258. science

    should'nt i use the equation mgh+half mv^2before=mgh+half mv^2aftr?.

    asked by Thalente
  259. Algebra

    Given f(x) = (x-1)(x-2) + (x-2)(x-5) + (x - 3)(x-8), what are the sum of the roots of f(x)?

    asked by Sarah
  260. Calculus

    The volume of the 3-dimensional structure formed by rotating the circle x^2 + (y-5)^2 = 1 around the x-axis can be expressed as V = a\pi^2. What is the value of a?

    asked by Steven
  261. Maths

    Slove for x: ln (x^2 -6x -16) = 5

    asked by Jeconiah