Popular questions and responses by Ryan
  1. Easy Math??

    The stock that Mr. Ames bought cost him $80 a share. The par value of the stock is $100. If the stock pays $6 a year in dividends, what rate of interest is Mr. Ames getting on his money? A.16 2/3% B.7 1/2% C.3% D.6% E.None of the above Personally, what

    asked on July 29, 2015
  2. Statistics

    The weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of 0.5 ounces. -The probability that a bag of corn chips weighs more than 21 ounces is? -The probability that a bag of corn chips weighs between

    asked on October 27, 2013
  3. Statistics

    Does a football filled with helium travel farther than one filled with ordinary air? To test this, the Columbus Dispatch conducted a study. Two identical footballs, one filled with helium and one filled with ordinary air, were used. A casual observer was

    asked on May 21, 2012
  4. Trigonometry

    if cos x=2/3 and x is in quadrant 4 find tan(x/2),sin(x/2),and cos(x/2) i got sin(x/2)=squr 1/6 tan(x/2)=squr 2/6 cos(x/2)=squr 5/6

    asked on April 5, 2016
  5. Chemistry, Vapor Pressure

    Select the pair of substances in which the one with the higher vapor pressure at a given temperature is listed first. 1. C7H16, C5H12 2. CCl4, CBr4 3. H2O, H2S 4. CH3CH2OH, CH3-O-CH3 5. Xe, Kr

    asked on December 11, 2014
  6. CHemistry

    SO2(g) + H2O(l)= H2SO(l) What mass of sulfur dioxide is needed to prepare 36.86 g of H2SO3(l)

    asked on March 26, 2014
  7. physics

    A rubber band has a"spring constant" of 45 N/m. When the rubber band is pulled by a force of 9.8 N , how far will it stretch and what is potential energy?

    asked on March 10, 2013
  8. trig

    Given that tan B= 7/24 with B in quadrant III, find sin 2B, cos 2B, and tan 2B, using angle identities.

    asked on October 11, 2011
  9. Trigonometry

    1. sin^2 theta+cos theta=2 (Hint: Use the Pythagorean identity sin^2 theta+cos theta=1 to replace sin^2 theta in the given equation.) I got no solution

    asked on March 25, 2016
  10. Chemistry

    How many grams of zinc metal are required to produce 2.00 L of hydrogen gas at STP according to the chemical equation shown below? Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)

    asked on June 4, 2015
  11. Chemistry

    What volume does 3.01 x 10^21 molecules of N2 occupy at STP?

    asked on April 10, 2013
  12. Math

    Find how many quarts of 4% butterfat milk and 1% butterfat milk should be mixed to yield 90 quarts of 2 % butterfat milk.

    asked on January 6, 2013
  13. chemistry

    In a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches 4.0 x 106 atm. When the bomb casing is destroyed by the explosion, the gas is released into the atmosphere where it reaches a pressure of 1.00 atm. What is the

    asked on July 16, 2020
  14. algebra

    Monica earned $60 from a bonus plus $8.50 per hour (h) she worked this week. Which of the following expressions best represents Monica's income for the week?

    asked on October 28, 2015
  15. Precal 12

    What is the value of k in the function f(x) = (2-k)/(5x+k) if its graph passes through the point (3, -2/19) A. -19/2 B. 4 C. -10 D. No such k exists I think its D, but I am not sure. Please help quickly.

    asked on June 22, 2017
  16. Math

    Parallelogram ABCD is inscribed in a circle. Then, the measure of angle A must be 90?

    asked on January 8, 2017
  17. physics

    A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.5 m tall, you observe that it takes the ball 0.18 seconds to traverse the length of the window. Determine how high above the top

    asked on January 30, 2015
  18. math

    7136 divided by 8 I am working in a work book and the answer is 892, but I can't figure how? can someone break it down for me.

    asked on May 24, 2011
  19. Math

    One angle of an isosceles triangle is 28°. What are the other 2 angles? (Choose all that apply.) 76 degrees and 76 degrees 116 degrees and 116 degrees 28 degrees and 152 degrees 28 degrees and 124 degrees

    asked on January 18, 2012
  20. english

    Which of the following is important for an introduction in formal or academic writing? Entertaining the audience Establishing the key point the piece of writing will make Discussing your opinion on the topic for at least three sentences Providing all of

    asked on December 13, 2017
  21. chemistry

    write the steps of complete ionization of carbonic acid and hydro sulfuric acid.

    asked on May 12, 2012
  22. Geometry

    A trapezoid has an area of 166.5 in.², a height of 9 in., and one base measuring 15 in. What is the length of the other base?

    asked on December 20, 2011
  23. english

    Identify the subject, object, and verb in this sentence: Paralegals need strong ethics. need is verb paralegals is subject strong is object am i right

    asked on December 13, 2017
  24. Algebra 2

    To solve 49(3x) = 343(2x+1), write each side of the equation in terms of base what? . In the brackets are powers. I tried to solve this but I don't understand I believe it is the first base you go off from but I'm not sure what I'm doing and a reassurance

    asked on February 23, 2016
  25. Chemistry

    Using the given boiling points, predict which compound has the higher vapor pressure at a given temperature. A. ethanol (C2H6O, bp 78 degrees C) or 1-propanol (C3H8O, bp 97 degrees C) B. hexane (C6H14, bp 69 degrees C) or octane (C8H18, bp 125 degrees C)

    asked on April 12, 2013
  26. geometry

    use Euler's formula to find the missing number. Vertices: 10 Edges: 29 Faces? This just totally confuses me

    asked on January 3, 2012


    asked on November 29, 2011
  28. math

    A=1/2h (b1 + b2) Solve for b1 A=1/2h (b1 + b2) Solve for b1 I assume this is A = (1/2)(h)(b1 + b2); i.e., the h is in the numerator and not the denominator Multiply both sides by 2. 2A = (2*1/2)h(b1 + b2). 2*1/2 on the right side is 1. 2A = h(b1 + b2)

    asked on August 15, 2006
  29. Math

    Petra is practicing factoring by grouping. She wants to factor the polynomial 16xy−4x^2+28y−7x. Her work is shown below. 16xy−4x^2+28y−7x 4x(4y−x)+7(4y−x) (4x+7)(4y−x) Which statements regarding Petra’s work are true? There may be more than

    asked on March 13, 2020
  30. Chemistry

    If you have 320.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

    asked on October 18, 2011
  31. Trigonometry Help please

    1.If tan theta=3/4 and theta is an acute angle, find cos theta. 2.If sin theta=12/13 and theta is an acute angle, find cot theta.

    asked on February 12, 2016
  32. Chemistry

    Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot day, this life form begins to sweat, and it is determined that the heat of vaporization of its sweat is 155 cal/g. The scientist observing the

    asked on January 25, 2013
  33. calculous

    Find the area of the region bounded by the parabola y = 4x^2, the tangent line to this parabola at (4, 64), and the x-axis.

    asked on November 9, 2011
  34. math 100

    When you take the Scholastic Assessment Test (SAT), your score is recorded as a percentile score. If you scored in the 92nd percentile, it means that you scored better than approximately 92% of those who took the test. If Lisa's score was 85 and that score

    asked on November 4, 2018
  35. Chemistry

    Perpare 500ml of 1M HCl solution from a bottle of concentrated 37%(W/W) HCL stock with a density of 1.19g/ml. 37%= 37/100 x 100 therefore mass is 37g molarity = mol/vol 1= mol/0.5 mol=0.5 mass of Hcl needed = molxmr mass = 0.5 x 36.5 mass = 18.25g

    asked on April 30, 2017
  36. Algebra

    After a 5% raise your new salary is $ 63000. Before the raise your salary was?? Help. Please.

    asked on August 26, 2010
  37. english

    True or False: the following sentence demonstrates parallelism: Cameron is an actor, a writer, and former model. true

    asked on December 13, 2017
  38. Math

    I need help solving the problem not the answer. (Multiple Choice) The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4

    asked on March 30, 2017
  39. Math

    A number has three distinct digits. The sum of the digits equals the product of the digits. How many three-digit numbers satisfy this condition?

    asked on September 4, 2016
  40. english

    Which of the following is a subordinate clause?

    asked on April 15, 2016
  41. Geometry

    A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2. What is the equation of the image?

    asked on January 18, 2012
  42. geometry

    can someone help me please on this question: What is the diameter of a cone with height 8 m and volume 150 m3 ?

    asked on December 23, 2011
  43. Physics

    The collision between a hammer and a nail can be considered to be approximately elastic. Estimate the kinetic energy acquired by a 15 g nail when it is struck by a 550 g hammer moving with an initial speed of 5.1 m/s.

    asked on March 3, 2010
  44. accounting

    Kiddy Toy Corporation needs to acquire the use of a machine to be used in its manufacturing process. The machine needed is manufactured by Lollie Corp. The machine can be used for 10 years and then sold for $11,000 at the end of its useful life. Lollie has

    asked on October 25, 2008
  45. Math

    The function h(t) = -16^2 + 120t + 300 gives the height in feet of a projectile fired from the top of a building after t seconds. When will the object reach a height of 350ft?

    asked on May 21, 2019
  46. math 100

    Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 2 80 5 70 9 60 6 50 4 40 1 30 2 0 5

    asked on November 4, 2018
  47. math 100

    Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 1 80 4 70 7 60 6 50 3

    asked on November 4, 2018
  48. chemistry

    The vapor pressure of liquid chloroform, CHCl3, is 100. mm Hg at 283 K. A 0.198 g sample of liquid CHCl3 is placed in a closed, evacuated 400. mL container at a temperature of 283 K. Assuming that the temperature remains constant, will all of the liquid

    asked on November 11, 2014
  49. physics

    When you go out to your car one cold winter morning you discover a 0.54 cm thick layer of ice on the windshield, which has an area of 1.6 m2. If the temperature of the ice is -4.1°C, and its density is 917 kg/m3, find the heat required to melt all the

    asked on April 26, 2010
  50. college physics

    Two blocks with masses m and M are pushed along a horizontal frictionless furface by a horizontal applied force. The magnitude of the force either of these blocks has on the other is: M being a bigger mass than m of course. I think the answer is: mF/(M-m)

    asked on December 17, 2009
  51. math 100

    A package of Toys Galore Cereal is marked "Net Wt. 12 oz." The actual weight is normally distributed, with a mean of 12 oz and a variance of 0.16. (a) What percent of the packages will weigh less than 12 oz? 50 Correct: Your answer is correct. % (b) What

    asked on November 9, 2018
  52. geometry

    The vertices of a triangle are P(–8, 1), Q(–6, –8), and R(4, –3). Name the vertices of the image reflected across the x-axis.

    asked on January 12, 2012
  53. geometry

    ‹mÚR = 120‹ and mÚS = 100‹. Find mÚT. The diagram is not to scale.

    asked on November 25, 2011
  54. Math

    In parallelogram WXYZ, m

    asked on February 15, 2011
  55. Probability again

    A box contains 6 red balls, 4 blue balls, and 2 green balls. Three balls are randomly drawn (without replacement) from the box. What is the probability that the three balls selected are all the same color?

    asked on November 29, 2009
  56. Math

    What is an even number that has a 7 in the hundreds place,has an odd number in the thousands place and is a multiple of 10?

    asked on January 24, 2018
  57. Chemistry

    Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

    asked on November 24, 2016
  58. Chemistry

    Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

    asked on November 24, 2016
  59. Chemistry

    Carbohydrates (such as C6H12O6) undergo combustion with oxygen to produce carbon dioxide and water. Living things use this reaction (a process called respiration) to produce energy. Determine the mass of carbohydrates consumed for every 0.300 mol of oxygen

    asked on November 21, 2016
  60. Math

    A game is played using one dice. If the dice is rolled and shows 1, the player wins $1; if it shows 2, the player wins $2; if it shows a 3, the player wins $3. If the die shows 4,5,or 6 the player wins nothing. a.) If there is a charge of $1.25 to play the

    asked on November 18, 2016
  61. English

    Choose the word that best completes the sentences. One of the girls left _____ tennis shoes in the gym a. her b. hers c. their d. them I think its it A but it could also be c the best player to watch is ______ a. she b. her c. him d. me this one confuses

    asked on May 18, 2016
  62. Trigonometry

    Given the equation for simple harmonic method d=1/12 sin(60 pi t) answer the following questions: b)Find the frequency i got 60pi c)Calculate the value of d when t=3 d)Determine the least positive value of t for which d=0.

    asked on March 24, 2016
  63. Trig Help

    Given the equation for simple harmonic method d=1.3cos(3pi/4 t) answer the following questions: a)Find the maximum displacement. 1.i got 1.3 b)Find the frequency and length of the pendulum c)Calculate the value of d when t=3 i got .919 d)Determine the

    asked on March 24, 2016
  64. Chemistry

    When 50 grams of hydrocarbon X are burned with oxygen the products are carbon dioxide and water. If 65 grams of water and 100 grams of carbon dioxide are produced, how many grams of oxygen were needed for the reaction? This was a question on my chemistry

    asked on February 28, 2016
  65. Easy Math??

    Carol started from home on a trip averaging 30 miles per hour how fast must her mother drive to catch up to her in 3 hours if she leaves 30 minutes after Carol? Use an equation to solve your work. a.35 mph b.39 mph c.40 mph I heard that the answer is a,

    asked on July 30, 2015
  66. Stoichiometry chem

    How many moles of carbon are found in 250.0 g of CaCO3? I started off with finding the molar mass of CaCO3, which is 100.09g. From there I divided 250g by 100.09g, but I have no idea what to do from there.

    asked on June 27, 2015
  67. Trig identities

    Sin x/[1-cos(-x)] = csc x + cot x Please Verify the Identity. I have been going in circle with this one... Just a hint would be nice. Thank you.

    asked on May 12, 2015
  68. Statistics

    A history class is comprised of 5 female and 8 male students. If the instructor of the class randomly chooses 8 students from the class for an oral exam, what is the probability that 2 female students and 6 male students will be selected? Round your answer

    asked on March 10, 2015
  69. calc 2

    find the maclaurin series for: f(x) = (1-3x)^-5. What is the radius of convergence?

    asked on July 27, 2014
  70. Global history

    Compare and contrast European colonization of the Americas in the 16th and 17th centuries with European colonization of Africa and Asia in the 18th and 19th centuries. Be sure to address the motives for colonization and the impact that colonization had on

    asked on May 28, 2014
  71. Economics

    Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the

    asked on April 27, 2014
  72. Math

    Suppose Meagan needs to drive the truck 10 miles to her new home. a) What is the cost of using Truck A? b) What is the cost of using Truck B? c) Which company offers the better deal at this mileage? 2. Suppose Meagan needs to dive the truck 30 miles to her

    asked on January 26, 2014
  73. Chemistry

    How much energy in kilocalories is needed to vaporize 255g of water? The heat of vaporization of water is 540 cal/g.

    asked on April 10, 2013
  74. Calculus

    A trough is 3 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of x^2 from -1 to 1 . The trough is full of water. Find the amount of work required to empty the trough by pumping the water over

    asked on September 29, 2012
  75. geometry

    Earth’s radius is about 4,000 mi. To the nearest mile, what is the distance a person can see on a clear day from an airplane 5 mi above Earth? help please!

    asked on January 4, 2012
  76. triangles

    The measures of two of the sides of an equilateral triangle are 3x + 15 in. and 7x – 5 in. What is the measure of the third side in inches?

    asked on November 4, 2011
  77. Chem

    An aqueous KNO3 solution is made using 82.7 grams of KNO3, diluted to a total solution volume of 1.50 L. The density of this solution is 1.05 g/mL. What is the molality of this solution?

    asked on May 2, 2011
  78. Spelling

    I need to unscramble the letters below to make a word. any ideas? Thank you! SENNWICAHDAR

    asked on December 11, 2018
  79. math 100

    The equation for a general normal curve with mean μ and standard deviation σ is y = e−(x − μ)2/(2σ2) σ 2π . Calculate values for x = 20, 30, , 70, 80 where μ = 50 and σ = 10. Note that setting μ = 0 and σ = 1 in this equation gives the

    asked on November 9, 2018
  80. english

    Question 1 Of the choices below, which sentence demonstrates parallelism? a. Sydney slept late on Saturday. b. Clint made a cake for dessert and had milk with it. c. To Kill a Mockingbird is a classic American novel about a young girl's journey to

    asked on December 6, 2017
  81. english

    PART ONE: Read the paragraph and identify the spelling and grammar errors. "Whenever I’m getting reading to eat my cat is always at my feet at the stove I am always tripping over him and swearing at him nevertheless he is such a funny creature how many

    asked on December 6, 2017
  82. Physics 11

    The diagram shows a collision between a 4.0 kg toy car and a stationary 8.0 kg toy truck. After the collision, the car bounces back at 1.0 m/s while the truck goes forward at 2.0 m/s. Based on these values, are momentum and kinetic energy conserved? Image

    asked on June 14, 2017
  83. Biology

    What are 2 advantages for binary fission in bacteria?

    asked on November 15, 2016
  84. Math

    How many sets of 3 primes sum to 20?

    asked on September 5, 2016
  85. political science

    Which of the following is NOT a component of judicial review? The supremacy of local laws when they conflict with national laws or treaties. The power of the courts to declare national laws invalid if they violate the Constitution The supremacy of national

    asked on May 1, 2016
  86. MATH 4 GRADE

    Nigel cut a loaf a bread into 12 equal slices. His family ate some of the bread and now 5/12 is left. Nigel wants to put each of the leftover slices in its own bag. how many bags does Nigel need?

    asked on February 16, 2016
  87. math

    What is the slope of the budget line from trading with Friday (coconuts for fish)?

    asked on August 24, 2014
  88. geometry

    if a cone is 7.5 cm high and has a vertical angle of 70 degree calculate the diameter of its base.

    asked on May 16, 2014
  89. Chemistry

    Complete ionic equation and net ionic equation for 2 K3PO4 + 3 Fe(NO3)2 --> 6 KNO3 + Fe3(PO4)2

    asked on March 26, 2014
  90. physics

    Drag-race tires in contact with an asphalt surface have a very high coefficient of static fric.tion. Assuming a constant acceleration and no slipping of tires, estimate the coefficient of static friction needed for a drag racer to cover 2.1 km in 8 s,

    asked on February 21, 2014
  91. Physics

    An object moving along a horizontal track collides with and compresses a light spring (which obeys Hooke's Law) located at the end of the track. The spring constant is 38.6 N/m, the mass of the object 0.270 kg and the speed of the object is 1.20 m/s

    asked on February 11, 2014
  92. Physics

    In a vertical dive a peregrine falcon can accelerate at 0.6 times the free-fall acceleration (that is at 0.06g) in reaching the speed of about 100 m/c. If a falcon pulls out of a dive into a circular arc at this speed and can sustain a radial acceleration

    asked on September 25, 2012
  93. geometry

    Write the standard equation for the circle center (–6, 7), r = 9 please help i am confused on this one

    asked on January 5, 2012
  94. geometry

    if ÚAOC=49, mÚBOC=2x+10, and mÚAOB=4x-15 find the degree of measure of ÚBOC and AOB

    asked on November 27, 2011
  95. geometry

    Isosceles trapezoid ABCD has legs AB and CD and base BC If AB = 7y – 4, BC = 4y – 6, and CD = 8y – 18, find the value of y.

    asked on November 25, 2011
  96. geometry

    What is the sum of the angle measures of a 37-gon?

    asked on November 25, 2011
  97. Chem5

    A dioxin-contaminated water source contains 0.052% dioxin by mass. How much dioxin (in g) is present in 4.2 liters of this water? (Assume the solution density is 1.00 g/mL.)

    asked on May 2, 2011
  98. Geometry

    the area of a regular hexagon is 35" squared. Find the length of a side.

    asked on March 14, 2011
  99. physics

    Suppose an occlusion in an artery reduces its diameter by 22%, but the volume flow rate of blood in the artery remains the same. By what factor has the pressure drop across the length of this artery increased?

    asked on April 21, 2010
  100. Chemistry

    If a silver wire is placed in a beaker containing 1 M Cu(NO3)2, what will happen? I don't think anything will happen, but what is the right way to explain this is chemical terms?

    asked on March 24, 2010


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