Popular questions and responses by Henry
  1. Geometry

    Find AX in the diagram if CX bisects angle ACB. And then there's a diagram below with triangle ABC, where X is on line C, BC=45, AC=21, and BX=30.

    asked on April 20, 2017
  2. Calculus

    Use the graph of f(t) = 2t + 3 on the interval [-3, 6] to write the function F(x), where F(x)= ∫f(t) dt where a=3 b=x. F(x) = 2x^2 + 6x F(x) = 2x + 3 F(x) = x^2 + 3x + 54 F(x) = x^2 + 3x - 18 Honestly have no idea where to start. Do i take the derivative

    asked on February 23, 2016
  3. Calculus

    The graph of f ′(x) is continuous and decreasing with an x-intercept at x = 0. Which of the following statements is false? (4 points) The graph of f has an inflection point at x = 0. The graph of f has a relative maximum at x = 0. The graph of f is

    asked on February 20, 2016
  4. algebra

    An amusement park charges $8 admission and average of 2000 visitors per day. A survey shows that , for each $1 increase in the admission cost, 100 fewer people would visit the park. Write an equation to express the revenue, R(x) dollars, in terms of a

    asked on March 18, 2015
  5. English

    Could I get some check on my answers? Read these lines from Macbeth: The west yet glimmers with some streaks of day: Now spurs the lated traveller apace, To gain the timely inn; and near approaches The subject of our watch. Which of the following correctly

    asked on March 6, 2016
  6. Calculus

    Pumping stations deliver gasoline at the rate modeled by the function D, given by D(t)= 6t/(1+2t) with t measure in hours and and R(t) measured in gallons per hour. How much oil will the pumping stations deliver during the 3-hour period from t = 0 to t =

    asked on February 21, 2016
  7. Mathematics

    D is partly constant and partly varies with when V=40 D=15 and when v=54 D=192

    asked on August 6, 2020
  8. physics

    A typical arteriole has a diameter of 0.080 mm and carries blood at the rate of 9.6×10−5cm3/s. \ a. What is the speed of the blood in an arteriole? b. Suppose an arteriole branches into 8800 capillaries, each with a diameter of 6.0×10−6m.What is the

    asked on June 19, 2019
  9. Calculus

    A particle moves along the x-axis with velocity v(t) = sin(2t), with t measured in seconds and v(t) measured in feet per second. Find the total distance travelled by the particle from t = 0 to t = π seconds. Do I have to take the integral of the equation

    asked on February 21, 2016
  10. Calculus

    Which of the following functions grows the fastest as x goes to infinity? 3^x ln(x) e^4x x^10 I put e^4x but I thought that 3^x might have been it too. I know for sure that it is not ln(x) and x^10 because those grow much slower.

    asked on February 20, 2016
  11. History

    How was James I's rule of England similar to peter the great's rule of Russia? Both reduces the size of their empire. Both increased their own power without approval by other government entitles. Both relied heavily on the opinions of their subjects when

    asked on March 27, 2014
  12. Calculus

    Which of the following functions grows the slowest as x goes to infinity? x^e e^x ex they all grow the same rate. I think it is c because it does not have any exponents.

    asked on February 20, 2016
  13. Calculus

    f(x) and g(x) are a differentiable function for all reals and h(x) = g[f(2x)]. The table below gives selected values for f(x), g(x), f '(x), and g '(x). Find the value of h '(1). (4 points) x 1 2 3 4 5 6 f(x) 0 3 2 1 2 0 g(x) 1 3 2 6 5 0 f '(x) 3 2 1 4 0 2

    asked on February 21, 2016
  14. Calculus

    The rate at which water flows into a tank, in gallons per hour, is given by a differentiable function R of time t. The table below gives the rate as measured at various times in an 8-hour time period. t---------0-----2------3-------7----8 (hours)

    asked on February 23, 2016
  15. AP Physics - Equilibrium

    The Achilles tendon is attached to the rear of the foot as shown in the figure below. When a person elevates himself just barely off the floor on the ball of one foot, estimate the tension Ft in the Achilles tendon (pulling upward) and the (downward) force

    asked on November 13, 2009
  16. math

    Write an equation of a line perpendicular to line AB below in slope-intercept form that passes through the point (7, 6). A (0,1) B (-2,5)

    asked on March 26, 2014
  17. Calculus

    Compare the rates of growth of f(x) = x + sinx and g(x) = x as x approaches infinity. f(x) grows faster than g(x) as x goes to infinity. g(x) grows faster than f(x) as x goes to infinity. f(x) and g(x) grow at the same rate as x goes to infinity. The rate

    asked on February 20, 2016
  18. Calculus

    Use differentials to estimate the amount of paint needed to apply a coat of paint 0.02 cm thick to a sphere with diameter 40 meters. (Recall that the volume of a sphere of radius r is V=(4/3)πr^3. Notice that you are given that dr=0.02.)

    asked on October 28, 2015
  19. English

    I hear the mournful wail of millions, whose chains, heavy and grievous yesterday, are to-day rendered more intolerable by the jubilant shouts that reach them. Which definition of rendered is most likely suited for this line? Caused to be a certain nature

    asked on March 11, 2016
  20. chemistry

    what is the volume occupied by 2 moles of ammonia at s.t.p(1mole of gas at s.t.p=22.4)

    asked on May 4, 2015
  21. AP Physics - Fluids

    A 6.0-cm diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32 kPa and 24 kPa, respectively. What is the volume rate of flow? I know to use Bernoulli's

    asked on November 20, 2009
  22. English

    Which of the following is NOT a way in which the novel differs from the short story? A. The novel employs multiple subplots. B. The novel more fully develops characters. C. The novel has a larger number of characters. D. The novel employs a traditional

    asked on September 15, 2018
  23. chemistry

    What are the oxidation numbers for the elements in the compound C2H5COOH?

    asked on April 27, 2011
  24. Physics

    If the coefficient of kinetic friction between a 35 kg crate and the floor is 0.30, what horizontal force is required to move the crate at a steady speed across the floor? What horizontal force is required if μk is zero?

    asked on December 4, 2012
  25. language arts

    15 literary devices in chapter 17 of to kill a mockingbird

    asked on September 30, 2011
  26. AP Physics Halley's Comet

    Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach. Estimate the greatest distance of the comet from the sun. Is it still in the Solar System? What planet's orbit is nearest when

    asked on October 2, 2009
  27. math

    Find the area of a square with side A when a is equal to the following values. Are the area of a square and the length of its side directly proportional quantities? Why or why not? A=8 cm. The area of the square is _______ square cm. The area of the square

    asked on November 1, 2018
  28. math

    A farmer wishes to fence a rectangular area behind his barn. The barn forms one end of the rectangle and the length of the rectangle is three times the width. How many linear feet of fence must he buy if the perimeter of the rectangle is 320 feet? The

    asked on March 10, 2018
  29. English

    I think the answer is, because he is pretty much telling the people reform is needed. AFTER an unequivocal experience of the inefficiency of the subsisting federal government, you are called upon to deliberate on a new Constitution for the United States of

    asked on March 10, 2016
  30. English

    I thought it was C for this Victor Frankenstein recounts the influences that lead to his great experiment: I feel exquisite pleasure in dwelling on the recollections of childhood, before misfortune had tainted my mind and changed its bright visions of

    asked on March 6, 2016
  31. algebra

    A rectangular lot is bordered on one side by a stream and on the other three sides by 600m of fencing. Find the dimensions of the lot if area is a maximum.

    asked on March 18, 2015
  32. physics

    A train whistle is heard at 280Hz as the train approaches town. The train cuts its speed in half as it nears the station, and the sound of the whistle is then 270 Hz. What is the speed of the train before slowing down? What is the speed of the train after

    asked on January 21, 2015
  33. Economics help

    An elderly man receives free prescription drugs from a veterans' hospital. So what kind of a good is this, like is this a privately owned service or publicly own service?

    asked on December 4, 2014
  34. World History

    What role did the Jacobins play in the French Revolution? The Jacobins reached an agreement with moderate French leaders to end the revolution. The Jacobins opened French gov't to full participation by women. The Jacobins returned France to a monarchy by

    asked on March 27, 2014
  35. Managerial Finance

    A firm has an issue of preferred stock outstanding that has a par value of $100 and a 4% dividend. If the current market price of the preferred stock is $50, the yield on the preferred stock is

    asked on March 16, 2013
  36. chemistry

    What is pH of 0.1M solution of NH4Br, if the pKb of NH3 is 4.74?

    asked on November 9, 2012
  37. AP Biology

    1.Oparin and Haldane hypothesized that the Earth's early atmosphere was strongly (2 points) acidic. oxidizing. reducing. ~~ ionic. 2.The most significant outcome of the Miller and Urey experiments was that they (2 points) synthesized living cells from

    asked on September 12, 2012
  38. AP Physics - Equilibrium

    Describe several situations in which an object is not in equilibrium even though the net force on it is zero. I can't think of a single one. I can think of the opposite (equilibrium with net force not being zero) but I don't get it the other way around.

    asked on October 29, 2009
  39. Pre-Calculus

    A road sign at the top of a mountain indicates that for the next 4 miles the grade is 12%. Find the angle of the grade and the change in elevation for a car descending the mountain.

    asked on February 5, 2009
  40. Physics

    A man at the back of the crowd watches a parade by holding a plane mirror just above his head. The parade passes 6m behind his head and the mirror is 0.25 in front of the man. How far does the image in the mirror appear to be from the man

    asked on October 14, 2019
  41. chemistry

    A student writes the equation that summarizes respiration incorrectly C_6 H_12 O_6 + 6O_2 ----> 3CO + 3CO_2 + 6H_2O Which of the following statements correctly identifies the mistake in balancing the equation? a. Not enough oxygen atoms are created in the

    asked on September 12, 2018
  42. General Chemistry

    Ferric Hydroxide, Fe(OH)3, is an insoluble salt with a solubility of 10^-39. 1) What is the maximum concentration of ferric hydroxide that can dissolve? 2) Using Le Chatalier's Principle, explain why iron (III) solutions are more soluble in acidic

    asked on May 20, 2016
  43. Calculus

    Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate I know that they grow at the same rate because they are both raised to the same power, but i don't know how to show it.

    asked on March 4, 2016
  44. Calculus

    A water tank is made by rotating f(x)=2^x-1 between [0,2] about the y-axis. The water tank is initially full, when a hole is opened at the bottom tip so that the water drains at a rate of 4 unit^3/second. How fast is the height of the water decreasing when

    asked on January 8, 2016
  45. check geo

    the tropical climate of the amazon basin results from its location and: A)altitude B)rainfall C)the tides D)prevailing wind patterns my choose:b a quipu is a: a) tool that the aztec used for farming. b)type of house in which several generations of inca

    asked on August 21, 2009
  46. Arithmetic progression

    The 1st term of linear sequence is 3 and the 8th term is 31. Find the common difference

    asked on October 18, 2019
  47. Physics

    A skateboarder travels on a horizontal surface with an initial velocity of 4.4 m/s toward the south and a constant acceleration of 2.0 m/s2 toward the east. Let the x direction be eastward and the y direction be northward, and let the skateboarder be at

    asked on September 28, 2018
  48. english

    Nathalie’s response to Harvy’s question, “ . . . It depends upon—a good deal whether I ever forgive you,” represents which feature of plot structure? a. climax b. exposition c. rising action d. falling action e. inciting incident I believe it is

    asked on September 24, 2018
  49. History

    What was the intention of the framers for checks and balances at the state level? A. State governments would check the power of the national government by passing laws regarding state matters. B. State representatives in the House would check the power of

    asked on September 12, 2018
  50. Maths

    A person stands in front of a cylindrical water tank and has a viewing angle of 27 degrees to the sides of the tank. What percentage of the circumference of the tank can they see?

    asked on March 15, 2018
  51. Mathematics

    A single cell divides in two every 5 minutes and each new cell continues to divide every 5 minutes. How long does it take for the cell population to reach at least 1 million?

    asked on February 26, 2018
  52. Science(physics)

    A boy while driving to his school covers at the average speed of 15km/h.On his return trip along the same route, covers at the average speed of 25km/h due to less traffic.What is the average speed for the whole trip

    asked on January 8, 2017
  53. math

    The first and the last terms of an Arithmetic Progression are 6 and 171 in that order. If there are 14 terms, find the 16th term of the Arithmetic Progression.

    asked on May 8, 2016
  54. English

    To forget them, to pass lightly over their wrongs, and to chime in with the popular theme, would be treason most scandalous. . . Which word is most similar to how chime in is used here? Agree Create Harmonize Resound I have no idea because chime in- means

    asked on March 11, 2016
  55. math

    What are the critical values on the graph of y = x^3 - 6x^2 + 9x + 3?

    asked on February 3, 2015
  56. Science

    Effects of global warming due to methane gases from land fills and animals? Effects of global warming due to carbon dioxide from cars and factories?

    asked on April 22, 2012
  57. physics

    Two cars leave the same point at the same time, each travelling at the same constant speed and each having the same mass. The first car drives directly east, while the second car heads directly north. If the centre of mass of the two-car system is

    asked on November 8, 2011
  58. chemistry

    what are the hydronium-ion and the hydroxide ion concentration of a solution at 25 C that is 0.0050 M strontium hydroxide, Sr(OH)2? a solution of hydrochloric acid is 0.20 M HCl. What is the hydronium-ion at 25 C? What is the hydroxide ion concentration at

    asked on August 6, 2011
  59. check geo

    the united states is a leading exporter of : a)oil and natural b)rice products C)beef and grain d) cranberries and rasberries. i choose a

    asked on August 12, 2009
  60. check geo

    the united states is a leading exporter of : a)oil and natural b)rice products C)beef and grain d) cranberries and rasberries. i choose a

    asked on August 12, 2009
  61. english

    Which statement best describes the character of Nathalie? A. She is a flat character because her goal is to marry Brantain for his money. B. She is both flat and dynamic because she loves one man and marries another. C. She is a dynamic character because

    asked on September 24, 2018
  62. Biology

    Codominance is a form of inheritance in which two different alleles for a gene are both expressed, and neither allele is dominant over the other. The alleles for type A blood and type B blood are codominant. If a man who is homozygous for type A blood and

    asked on July 6, 2017
  63. Calculus

    Determine if the Mean Value Theorem for Integrals applies to the function f(x) = 5 - x^2 on the interval 0 to sqrt 5 . If so, find the x-coordinates of the point(s) guaranteed by the theorem.

    asked on March 2, 2016
  64. Math

    Eleanor and Max used two rectangular wooden boards to make a set for the school play. 1 board was 6 ft long, the other was 5 1/2 ft long. The 2 boards had equal widths. The total area of the set was 60 3/8 square ft. What was the width?

    asked on October 7, 2014
  65. history

    6. At the Yalta Conference of 1945, the military situation favored A. Churchill. B. Eisenhower. C. Stalin. D. Roosevelt. i think is c

    asked on November 28, 2012
  66. Physics

    A race car completes the final lap of a race on a 2-kilometer circular track. At the start of the lap, it crosses the line at 60 meters/second. It completes the lap 28.57 seconds later, crossing the line at 85 meters/second. Calculate the displacement and

    asked on June 29, 2012
  67. Chemistry

    PLEASE HELP!! On a clear day at sea level, with a temperature of 25 °C, the partial pressure of N2 in air is 79 kPa and the concentration of nitrogen in water is 5.3 x 10-4 M. When the partial pressure of N2 is ________ kPa, the concentration in water is

    asked on May 25, 2012
  68. Chemistry

    Pure ethanoic acid (25.0cm3, CH3COOH), pure ethanol (35.0 cm3, C2H5OH) and pure water (20.0cm3, H2O) were mixed in a sealed flask at room temperature. The flask was placed in a heated water bath and maintained at 323K until equilibrium was established.

    asked on May 1, 2012
  69. Science

    Effects of global warming due to methane gases from land fills and animals? Effects of global warming due to carbon dioxide from cars and factories?

    asked on April 22, 2012
  70. biology

    How does carbon dioxide emissions from factories, cars and trucks effect global warming? How does methane released from landfills and agriculture effect global warming?

    asked on April 22, 2012
  71. physics

    At 15 minutes past the hour, a 50 g mouse runs up a grandfather clock and sits himself down at the end of the minute-hand. If the minute-hand for the clock is 16 cm long, what is the magnitude of the torque exerted by the mouse on the minute-hand? Give

    asked on November 15, 2011
  72. Chemistry

    what is the pH of a 0.025 M aqueous solution of sodium propionate, NaC3H5O2? What is the concentration of propionic acid in the solution?

    asked on August 8, 2011
  73. chemistry

    if the rms speed of NH3 molecules is found to be 0.510 km/s what is the temperature (in Celcius)? can someone solve this using the formula c=((2.55*R*T)/M)^1/2 c is the speed r is 8.314 constant M is the molar mass of NH3 17.031

    asked on August 5, 2011
  74. physics

    7. A 2000.0 kg boulder sits on the top of a 50.0 m cliff. As the boulder rolls off, it loses 3.0% of its mechanical energy as heat. How much heat energy goes the boulder lose? How much mechanical energy does the boulder have right before hits the ground?

    asked on December 6, 2009
  75. AP Physics

    A rope is tied to a pail of water and the pail is swung in a vertical circle of radius 1.3m. What must be the minimum velocity of the pail at the highest point of the circle if no water is to spill?

    asked on September 24, 2009
  76. chemistry

    The element copper has naturally occuring isotopes with mass numbers of 63 and 65. The relative abundance atomic masses are 69.2% for mass=62.93 amu, and 30.8% for mass=64.93 amu. Calculate the average atomic mass of copper.

    asked on September 7, 2009
  77. check geo

    abstract painting and geometric design are examples of: A)realism B)impressionism C)romanticism D)modern art my choice d the maastricht treaty was an agreement among: A)all european nations B)western european nations C)eastern european nations D)europe and

    asked on August 30, 2009
  78. check geo

    many rural migrants in latin america are forced to live in ______ when they reACH the city. A)apartments b)shelters c)shanytowns D)minifundia my choose d

    asked on August 21, 2009
  79. check geo

    canada and the us are _______ largest trading partners. A)europe B)germany c)each other D) japan i go with japan. clear cutting causes flooding and A)smog B)acid rain C)thermal pollution that's my ans. or d) erosion

    asked on August 13, 2009
  80. geography check

    which of the following best describe the earths inner core? A) liquid and extremly hot B)solid and cool C)liquid and cool D)solid and extremly hot (i choose c.)

    asked on August 8, 2009
  81. Algebra 2

    simplify the radical expression by rationalizing the denominator. 4/*21 * means square root

    asked on August 16, 2008
  82. geometry

    Lines a and b are parallel. Line c is a transversal. Find the measures of all angles formed by a,b, and c, if: one of the angles is with 70° larger than the other one.

    asked on November 14, 2018
  83. english

    An essential feature of the short story that is exemplified by Chopin’s “The Kiss” is a. the emphasis on romance b. the focus on a single effect c. precise plot structure d. action taking place in a single day e. the internal conflict I beleive it is

    asked on September 24, 2018
  84. english

    Given the context which meaning best fits the use of the word meanest a. dullest b. stingiest c. unkindest d. most ashamed e. least important passage: Yet, love, mere love, is beautiful indeed And worthy of acceptation. Fire is bright, Let temple burn, or

    asked on September 24, 2018
  85. english

    “You are over-scrupulous, surely. I dare say Mr. Bingley will be very glad to see you; and I will send a few lines by you to assure him of my hearty consent to his marrying whichever he chooses of the girls; though I must throw in a good word for my

    asked on September 15, 2018
  86. physics

    Two insulating spheres with charges of -7.0 μC and -12 μC, are located 10.0 cm apart. What is the force between them? In what direction does it act?

    asked on May 31, 2018
  87. Chemistry

    a hydrocarbon is burnt completely in excess oxygen. it is found that 1.00g of the hydrocarbon gives 2.93g carbon dioxide and 1.80g water. find the empirical formula of the hydrocarbon (H=1,C=12,O=16)

    asked on May 10, 2018
  88. math

    One side of a rectangle is five times as long as the other side. If the perimeter is 72 meters, what is the length of the shorter side? ___ meters

    asked on March 10, 2018
  89. Math

    the 8th terms of a geometry progression is 640. if the first term is 5, find the common ratio and the 10th terms?

    asked on January 14, 2018
  90. Geometry

    A cone has diameter 12 and height 9. A cylinder is placed inside the cone so the base of the cylinder is concentric with the base of the cone and the upper base of the cylinder is contained in the surface of the cone. If the volume of the cone is nine

    asked on May 9, 2017
  91. Maths

    Hasim counted his money. he gave 1/3 to his brother. he spent £12 on his sister. What he had left was half what he had at the beginning. how much did he give his brother?

    asked on May 1, 2017
  92. Math

    An angle θ satisfies the relation csc θ cos θ = -1. A) Use the definition of the reciprocal trigonometric ratios to express the left side in terms of sin θ and cos θ. B) What is the relation between sin θ and cos θ for this angle? C) Determine two

    asked on November 22, 2016
  93. Math

    A craft project requires 5/6 yards of ribbon to make 4 refrigerator magnets.How many inches of ribbon are needed for each magnet?

    asked on August 30, 2016
  94. Calculus

    Which of the following integrals cannot be evaluated using a simple substitution? I think it is A because if you would substitute there would be nothing left in the equation? Is that right? Options ∫√(x-1) ∫1/√(1-x^2) ∫x/√(1-x^2) ∫√(x^2-1)

    asked on January 2, 2016
  95. math-unit rates

    Jeff hikes 1/4 mile every 2/5 hour. John hikes 1/2 mile every 1/7 hour. A) Who hikes farther in one hour. Show work. B) Who walks faster, Jeff or John. Explain your reasoning

    asked on November 28, 2015
  96. Calculus

    Find the Absolute Maximum and Absolute Minimum of f on (0,3]. f(x)=(x^3-4x^2+7x)/x Multiple choice question I know the minimum is (2,3) but the maximum is either nothing or (0,7) but I can't tell which one

    asked on November 7, 2015
  97. Calculus, HELP!!

    1) A rectangular page is to contain 24 square inches of print. The page has to have a 6-inch margin on top and at the bottom and a 1-inch margin on each side. Find the dimensions of the page that minimize the amount of paper used. 2) A cable runs along a

    asked on March 5, 2015
  98. Chemistry

    The solubility of insoluble substances changes depending on the nature of the solution. Below are two solutions in which Cu(OH)2 is dissolved; in each case, the solubility of Cu(OH)2 in those solutions is not the same as it is in pure water. (a) For each

    asked on February 19, 2015
  99. Math- Max and Minimum

    Consider the function f(x) = 3/4x^4 –x^3 -3x^2 + 6x , find the relative extrema for f(x), be sure to label each as a maximum or minimum. How do I find the x-values of what it is asking?

    asked on December 31, 2014
  100. finance

    Sales (100 units) $200 Variable costs ($.80 ea) 80 Fixed Costs 20 EBIT 100 Interest Expense 30 EBT 70 Income tax 24 Net Income 46 Breakeven point in units

    asked on October 12, 2014


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