Most popular questions and responses by Tony
  1. Math

    A recipe calls for 2 2/4 cups of raisins but Julie only has 1/4 cup measuring many 1/4 cups does Julie need to measure out 2 2/4 cups of raisins?

    asked on February 2, 2017
  2. Physics

    Two manned satellites approaching one another at a relative speed of 0.200 m/s intend to dock. The first has a mass of 5.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. Assume that the positive direction is directed from the second satellite

    asked on October 8, 2017
  3. Math

    The grocery store sells kumquats for $4.25 a pound and Asian pears for $2.25 a pound. Write an equation in standard form for the weights of kumquats k and Asian pears p that a customer could buy with $18.

    asked on August 3, 2012
  4. chemistry

    1.00 g zinc and 0.80 g sulfur are allowed to react all the zinc is used up 1.50 g of zinc sulfide is formed and some unreacted sulfur remains what is the mass of unreacted sulfur

    asked on February 3, 2013
  5. physics

    if you shook the end of a rope up and down three times each second, what would be the period of the waves set up in the rope? what would be the frequency? plz help me i am so stressed out!

    asked on March 31, 2008
  6. Chemistry Honors

    Arthur is performing a lab which requires a 0.2 M solution of calcium hydroxide. However, the only calcium hydroxide solution available has a concentration of 0.5 M. How can Arthur dilute the 0.5 M solution to make 10 mL of a 0.2 M solution? A.He needs to

    asked on December 16, 2014

    Question 1 Write the first four terms of the sequence whose general term is given. an = 3n - 1 Answer 2, 3, 4, 5 2, 5, 8, 11 -2, -5, -8, -11 4, 7, 10, 13 3 points Question 2 Write the first four terms of the sequence whose general term is given. an = 2(2n

    asked on July 10, 2012
  8. Math

    How to convert y^2-8x-16=0 to polar form

    asked on March 6, 2018
  9. English-Poetry

    can someone help find "The Dying Eagle" by E.J. Pratt for me i need it for my poetry assignment and give me the site address. plz and ty

    asked on November 3, 2008
  10. electric field intensity

    Two 2.0 g spheres are suspended by 10.0 cm long light strings. A uniform electric field is applied in the x direction. If the spheres have charges of -5.0 10-8 C and +5.0 10-8 C, determine the electric field intensity that enables the spheres to be in

    asked on January 17, 2009
  11. math

    Question 5.5. Sandra throws an object into the air with an initial vertical velocity of 38 feet per second, from a platform that is 30 feet above the ground. How long will it take the object to hit the ground? (Points : 1) 1 second 2 seconds 3 seconds 4

    asked on June 11, 2015
  12. Chemistry Honors

    What volume of a 0.50 M MgSO4 solution will be needed to prepare 100.0 mL of a 0.20 M MgSO4 solution? A.250 mL B.100 mL C.0.250 mL D.40.0 mL

    asked on December 16, 2014
  13. phys

    A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 x 10^(–2)-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is: A) 0.15 N B) 6.0 x 10^(–3) N C) 2.5 x

    asked on March 8, 2014
  14. cal

    A conical tank (with vertex down) is 12 feet across the top and 18 feet deep. If water is flowing into the tank at a rate of 18 cubic feet per minute, find the rate of change of the depth of the water when the water is 10 feet deep. I got 81/200pi ft/min.

    asked on November 2, 2013
  15. Chemistry Honors

    What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) A. 105 g B. 100.42 g C. 0.105 g D. 103.35 g

    asked on December 16, 2014
  16. Statistic

    The number of customers who enter a supermarket each hour is normally distributed with a mean of 600 and a standard deviation of 200. The supermarket is open 16 hours per day. what is the probability that the total number of customers who enter the

    asked on December 8, 2010
  17. Maths

    The 7th term of an a.p is 11 and the nth term is 3. Find the first five term

    asked on January 19, 2016
  18. trig

    The point (-3, 4) is on the terminal side of angle θ in standard position. Find cot θ.

    asked on June 11, 2013
  19. Math HELP

    #1 find the value of x if RS = 4(x-3)+6 and RT = 5(2x-6). x= 12 x= 6 x= 4*** x= 3 #2 which of the following statements are always true? Choose all that apply. If the circumcenter of a triangle lies on the triangle, then the triangle is a right triangle.

    asked on October 16, 2018
  20. phys

    A 12-kg crate rests on a horizontal surface and a boy pulls on it with a force that is 30 degree below the horizontal. If the coefficient of static friction is 0.40, the minimum magnitude force he needs to start the crate moving is:

    asked on March 12, 2014
  21. History

    Which statement about the slave trade is true? 1. European traders often went to Africa’s interior on slave raids 2. Some African leaders, such as Afonso, tried to end the slave trade, while others encouraged it*** 3. The slave trade had minimal effect

    asked on October 17, 2018
  22. chemistry

    Suppose you tried to combine 42 grams of magnesium with 42 grams of oxygen. Which of the two substances would have some left after the reaction and how much magnesium oxide would be formed?

    asked on March 3, 2010

    Henry is taking a medicine for a common cold. The table below shows the amount of medicine f(t), in mg, that was present in Henry's body after time t: t (hours) 1 2 3 4 5 f(t) (mg) 282 265.08 249.18 234.22 220.17 Greg was administered 300 mg of the same

    asked on August 1, 2017
  24. Math

    Three numbers form a g.p.if the first and third numbers are 5 and 245 respectively, find two possible values for the middle number.

    asked on October 20, 2016
  25. cal

    The end plates (isosceles triangles) of the trough show below were designed to withstand a fluid force of 5800 lb. How many cubic feet can the tank hold without exceeding this limitation? Assuming the density is 62.4 lb/ft^3, the maximum volume is ____

    asked on December 26, 2013
  26. Chem

    How many grams of oxygen are there exactly in 100.0 g of carbon dioxide?

    asked on April 5, 2016
  27. physics

    suppose the diver vaults off the springboard, leaving it with an initial speed of 3.50 m/s upward. use energy conservation to find his spped when he strikes the water.

    asked on October 23, 2013
  28. physics

    A compact car, mass 875 kg, moving south at 16 m/s, is struck by a full-sized car, mass 1660 kg, moving east at 12 m/s. The two cars stick together, and momentum is conserved in the collision. The wreck skids along the ground and comes to a stop. The

    asked on February 4, 2013
  29. Algebra

    A wrestling match has eliminations each round. The table below shows the number of wrestlers in each of the first 4 rounds of the tournament: Round (x) 1 2 3 4 Wrestlers f(x) 64 32 18 9 Compute the average rate of change of f(x) from x = 1 to x = 4 and

    asked on June 6, 2017
  30. chem

    Determine the density of methane (CH4) in g/L at 21.9oC and 0.9 atm

    asked on June 29, 2011
  31. Math

    In 1983, the population of Functionville was 2560, and it tripled in 6 years. a. Write an exponential model for the population of Functionville t years after 1983. b. According to your model, it what year had the population grown to 7 times its size?

    asked on July 15, 2012

    The description below represents Function A and the table represents Function B: Function A The function is 2 more than 5 times x. Function B x y -1 2 0 5 1 8 Which statement is correct about the slope and intercept of the two functions? Their slopes are

    asked on August 1, 2017
  33. Chemistry

    Calcium carbonate reacts w/stomach acid according to the following chemical equation. CaCO3+2HCl(aq)-> CaCl2(aq)+H2O(l)+CO2(g) A. Balance the eqaution B. Tums is one commercially sold antacid that contains CACO3. If Tums is added to 20.0ml of 0.400 M HCl,

    asked on December 14, 2010
  34. english

    what is the part of speech of this sentence? 2. How long did it take Marianne to build the model? pronoun noun verb interjection I think it's interjection?

    asked on December 17, 2010
  35. drwls please read

    i know this might seem kind of long. but if you could please help me, i'd greatly appreciate it. a. suppose you have a tug of war with a friend who is the same size and weight as you are. You both pull as hard as you can, but neither of you seems to be

    asked on October 25, 2008
  36. math

    Write an explicit formula for the sequence -13 , -6 , 1 , 8

    asked on March 6, 2019
  37. Algebra

    A certain forest covers an area of 2,000 square kilometers. Suppose that each year this area decreases by 6%. What is the function that best represents the area of the forest each year and how much area remains after 12 years? Round your answer to the

    asked on June 7, 2017
  38. Physics

    For a winter fair, some students decide to build 30.0- kg wooden pull-carts on sled skids. If two 90.0- kg passengers get in, how much force will the puller have to exert to move the pull-cart? The coefficent of maximum static friction between the cart and

    asked on October 27, 2009
  39. Chemistry

    Please someone explain the best way of solving this. A 55 kg woman has 7.5 x 10 to the power of negative 3 moles of hemoglobin (Molar mass=64,456 g/mole) in her blood, how many hemoglobin molecules is that? What is the quantity in grams?

    asked on April 11, 2017
  40. physics

    The electrons in a TV tube are accelerated from rest through a potential difference of 18kV. Esimate the speed of the electrons after they have been accelerated by this potential difference.

    asked on February 3, 2011
  41. Precalculus

    The sphereflake shown (not shown for question) is a computergenerated fractal that was created by Eric Haines. The radius of the large sphere is 1. Attached to the large sphere are nine spheres of radius . Attached to each of the smaller spheres are nine

    asked on November 7, 2010
  42. math

    7 kids and 2 adults are going to the circus. Kid's tickets are on sale for only half the price of adult tickets. The total cost is $70. How much is one kids ticket? How much is one adult ticket?

    asked on February 10, 2016
  43. Mathematics

    Solve tan2x = 5sin2x Giving all solutions in the interval 0 ≤ x ≤ 180°

    asked on November 18, 2015
  44. chemistry

    What is the temperature in Celcius of 3.33 moles of neon that occupies 13.4 liters under the pressure of 3 atmospheres.

    asked on November 14, 2018
  45. business math

    Matty Kaminsky owns a new Volvo. His June monthly interest was $400. The rate is 8 ½ percent. Matty's principal balance at the beginning of June is: (Use 360 days)

    asked on November 20, 2011
  46. Eth 125

    Click on the box in front of your selected answer. There is only one correct response per question. Week 5 Quiz Name: Click on the box in front of your selected answer. There is only one correct response per question. When completed, save, and post and

    asked on July 21, 2010
  47. physics

    A 1.9 kg block slides down a frictionless ramp, as shown in figure 8-28. The top of the ramp is 1.5 m above the ground; the bottom of the ramp is .25 m above the ground. The block leaves the ramp moving horizontally, and lands a horizontal distance d away.

    asked on October 20, 2010
  48. math

    A radio transmission tower is 170 feet tall. How long should a guy wire be if it is to be attached 7 feet from the top and is to make an angle of 30° with the ground? Give your answer to the nearest tenth of a foot

    asked on July 28, 2012
  49. Math

    Among all pairs of numbers whose difference is 88, find a pair whose product is as small as possible.

    asked on July 5, 2012
  50. College Physics 2056

    An electromagnetic wave strikes a 3.00-cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is determined to be 6.00 10-4 T. How long does it take for the wave to deliver 1000 J of energy to the wall?

    asked on April 8, 2012
  51. Chemistry Honors

    If water, a polar molecule, is combined with another polar molecule, what can be said about the substance added to the water? A. The solubility can not be determined by only knowing the polarity. B.It is soluble in water only if the water is poured over

    asked on December 16, 2014
  52. MATH

    I NEED TO SOLVE FOR Y AND X im getting rele confused on this. ok here is the prob. x+y=5 x-2y=-4 equation 1 x+y=5 equation 2 x-2y=-4 Multiply equation 1 by -1. Add equation 1 to equation 2. The x term cancels. Solve for y. THEN, put the value of y into

    asked on December 17, 2006
  53. Physics

    The leader of a bicycle race is traveling with a constant velocity of +11.9 m/s and is 10.7 m ahead of the second-place cyclist. The second-place cyclist has a velocity of +9.10 m/s and an acceleration of +1.20 m/s2. How much time elapses before he catches

    asked on August 27, 2012
  54. AP Physics

    A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:

    asked on December 16, 2010
  55. cal

    Find the area of the region enclosed by the curve y=xsinx and the x-axis for 7π ≤x ≤8π .

    asked on December 23, 2013
  56. Statistics

    A researcher is interested in whether students who attend private high schools have higher average SAT scores than students in the general population. A random sample of 90 students at a private high school is tested and has a mean SAT score of 1050. The

    asked on November 19, 2011
  57. Math

    8 runners are entered in the 1000-meter run. How many different first, second, and third place finishes could possibly occur? Is the answer 24? No. 8x7x6 = 336 The first place can be any of eight. For each first place possibility, there are seven possible

    asked on December 14, 2006
  58. statistics

    Shown below are rental and leasing revenue figures for office machinery and equipment in the United States over a sever-year period according to the U.S. Census Bureau. Use these data to run a linear regression and then forecast the rental and leasing

    asked on July 8, 2013
  59. physics

    A copper Calorimeter of mass 150g,was half-filled with water of mass 300g and a temperature of 0°C.5g of ice of mass 0°C was added to the content, later some quantity of steam was passed into the mixture and the temperature rose by 20°C. Calculate the

    asked on December 13, 2017
  60. Algebra/Trig

    To ensure safety, the recommended angle that a ladder leaning against a building makes with the ground is 75 degrees. Will a 12 foot ladder reach a window 10 feet above the ground if it leans against the building with this angle? Use trigonometry to

    asked on May 8, 2017
  61. English

    According to An Inconvenient Truth, what is the role of infrared radiation in global warming?

    asked on September 22, 2015
  62. math

    A segment of a circle has a 120 arc and a chord of 8in. Find the area of the segment

    asked on October 20, 2010
  63. Introduction to business

    1. In which stage of the product life cycle are profits at their highest? A. Introductory stage B. Decline stage C. Maturity stage D. Growth stage

    asked on May 1, 2015
  64. solubility graph

    what temperature is required to dissolve 110 grams fo sodium nitrate in 100 cm3 of water?

    asked on November 10, 2008
  65. Math

    Use the compound interest formulas A = P(1 + r/n)nt and A = Pe^rt to solve. Find the accumulated value of an investment of $3000 at 9% compounded continuously for 3 years.

    asked on July 15, 2012
  66. Physics

    Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1100 kg and was approaching at 8.00 m/s due south. The second car has a mass of 850 kg and was approaching at 24.0 m/s due west. (a) Calculate the final

    asked on October 8, 2017
  67. Applications of definite integrals

    find the area of the region bounded by the parabola y^2= 16x and its latus rectum

    asked on November 15, 2014
  68. math - expected value and fair price

    one hundred raffle tickets are sold for $3 each. one prize of $200 is to be rewarded.Lisa purchases one ticket. a- what is her expected value b- what is the fair price for a ticket?

    asked on January 7, 2013
  69. Spanish

    I was hoping some one could check these reading response answers for grammar. It was the story la dama del alba. En español, escribe un resumen de un párrafo relatando lo que ha pasado en las primeras 10 páginas de ‘La dama del alba’. (5 points) Lo

    asked on February 6, 2017
  70. Geology

    Which of the following pieces of evidence supports the plate tectonic theory? A. Ocean-floor sediments are oldest at the ridge crest. B. The stripe patterns of high- and low-intensity magnetism are mirror images on both sides of an oceanic ridge. C.

    asked on October 16, 2016
  71. trig

    Write the complex number in trigonometric form, using degree measure for the argument. -12 - 16i

    asked on June 28, 2013
  72. statistics-?mean average with lowest number out?

    A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?

    asked on January 7, 2013
  73. HIS/135

    Explain the impact of McCarthyism on the U.S. Relate the ideology of the Cold War to the breakdown of wartime affiances after the end of WWII. Examine American Cold War policies and practices in international relations from the late 1940s to the mid-1950

    asked on September 5, 2010
  74. calculus

    Find the smallest possible area of an isosceles triangle that is circumscribed about a circle of radius r

    asked on December 4, 2008
  75. precalc

    A projectile is launched from a platform 10 feet high with an initial velocity of 72 feet per second, The height h of the projectile at t seconds after launch is given by h = –16t2 + 72t + 10 feet.

    asked on July 7, 2016
  76. physics

    A 82 kg runner with a speed of 5.6 m/s makes a sharp turn with a radius of 1.1 m to avoid a collision. What is the magnitude of the frictional force (in N) the ground exerts on the runner during the turn?

    asked on February 10, 2016
  77. Math ( Can You check my Work?) = 3n - 1 2. an = 2(2n - 3) = 4^n = (2/3)^n 5. an = (-1)^n(n + 5) 6. an = (-1)^n + 1(n + 6) 7. an= n+3/2n-1 8. a1 = -5 and an = an-1 - 3 for n ≥ 2 9. a1 = -6 and an = -2an-1 for n ≥ 2 10.a1 = 4 and an = 3an-1 + 2 for n ≥ 2 11. Find a8

    asked on August 1, 2012
  78. vocab

    whats the root or base word of rebellious,belligerent, doctrine, document, levity, levitate, initiative, itinerary, impulsive, compel

    asked on February 5, 2012
  79. Physics

    A boat is rowed due North at 7.0 km/h directly across a river that flows due East at 4.0 km/h. Find the boat's resultant speed.

    asked on April 15, 2010
  80. Algebra

    Which of the following statements is false? The sum of two rational numbers is always rational. The sum of a rational number and an irrational number is always rational. The product of a nonzero rational number and an irrational number is always

    asked on June 7, 2017
  81. maths

    the sum of a number and its square is one and a half times their difference. what is the number?

    asked on June 7, 2016
  82. physics

    A string of 15 identical Christmas tree lights are connected in series to a 127 V source. The string dissipates 58 W.What is the equivalent resistance of the light string? Answer in units of Ω

    asked on April 8, 2013
  83. statistics

    The average age of a vehicle registered in the United States is 8 years, or 96 months. Assume the standard deviation is 16 months. If a random sample of a group of 48 vehicles is selected find the probability that the mean of the group’s age is between

    asked on March 17, 2013
  84. Math

    In one U.S. city, the quadratic function models the median, or average, age, y, at which men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for

    asked on July 5, 2012
  85. Math

    A triangle is placed in a semicircle with a radius of 3cm, as shown below. Find the area of the shaded region. Use the value for 3.14, and do not round your answer. Be sure to include the correct unit in your answer.

    asked on June 14, 2011
  86. english

    1. Marianne exhibited her model spacecraft at the science fair. adjective adverb conjunction preposition I think it's adverb?

    asked on December 17, 2010
  87. physics

    A student is trying to decide what to wear. His bedroom is at 20.0°C. His skin temperature is 36.0°C. The area of his exposed skin is 1.46 m2. People all over the world have skin that is dark in the infrared, with emissivity about 0.915. Find the net

    asked on October 19, 2008
  88. ci

    A researcher is interested in whether students who attend private high schools have higher average SAT Scores than students in the general population. A random sample of 90 students at a private high school is tested and and a mean SAT score of 1030 is

    asked on November 19, 2011
  89. foundations of government project

    Purpose of Government principles of a Democratic Government Documents that influenced the Constitution Citizenship and Naturalization Dutien of Citizenship Tesponsibilities fo Citizenship Personal Traits of Good Citizens

    asked on October 4, 2009
  90. physics

    A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper

    asked on November 25, 2014
  91. statistics

    Investment analysts generally believe the interest rate on bonds is inversely related to the prime interest rate for loans; that is bonds perform well when lending rates are down and perform poorly when interest rates are up. Can the bond rate be predicted

    asked on July 8, 2013
  92. statistics

    A license plate is to have 3 digits followed by 2 uppercase letters. What is the number of different license plates possible if repetition of numbers and letters is not permitted?

    asked on January 7, 2013
  93. math

    A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?

    asked on January 7, 2013
  94. geography

    Central asia Complete the following: Describe what influence the former invaders of this region brought into the regions culture. a. Turkic b. Arabs c. Mongols under Genghis Khan D. Mongols under Timur e. Russians f. Soviet

    asked on November 8, 2012
  95. Math

    If 3000 dollars is invested in a bank account at an interest rate of 6 per cent per year, find the amount in the bank after 12 years if interest is compounded annually Find the amount in the bank after 12 years if interest is compounded quaterly Find the

    asked on July 13, 2011
  96. physics

    A glass window pane is exactly 23 cm by 38 cm at 10oC. By how much has its area increased when it temperature is 49oC, assuming that it can expand freely? Take the coefficient of thermal expansion for the glass to be exactly 9 x 10-6/Co

    asked on April 22, 2011
  97. physics

    a student throws a ball straight upwards to a height to height of 7.50m How much work did did the student do?

    asked on September 19, 2010
  98. Chemistry

    In an experiment to find the percentage of calcium carbonate in sand from a beach, 1.86 g of sand reacted with an excess of dilute hydrochloric acid to give 0.55 g of carbon dioxide. CaCO3 (s) + 2HCL (aq) – CaCl2(aq) + CO2(g) + H2O (l) 1.Calculate the

    asked on February 17, 2010
  99. physics urgent!

    A vaulter holds a 34.1 N pole in equilibrium by exerting an upward force U with her leading hand and a downward force D with her trailing hand. Point C is the center of gravity of the pole. Given d1 = 1.100 m, d2 = 1.65 m, and d3 = 2.75 m, what are the

    asked on November 24, 2008
  100. english

    IDENTIFY THE PARTS OF SPEECH IN THE FOLLOWING SENTENCE. I usually go swimming with my best friend and his rather unusual girlfriend. a) I - personal pronoun - countable (I is the subject in this sentence) b) usually - adverb (indicates frequency) c) go -

    asked on October 23, 2008


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