Henry

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.

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

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

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

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

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 =

7. Mathematics

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

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

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

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.

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

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.

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

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)

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

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)

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

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.)

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

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)

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

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

23. chemistry

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

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?

25. language arts

15 literary devices in chapter 17 of to kill a mockingbird

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

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

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

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

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

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.

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

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?

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

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

36. chemistry

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

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

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.

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.

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

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

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

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.

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

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

46. Arithmetic progression

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

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

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

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

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?

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?

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

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.

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

55. math

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

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?

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

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

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

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

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

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

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.

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?

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

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

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

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.

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?

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?

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

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?

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

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?

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?

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.

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

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

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

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.)

81. Algebra 2

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

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.

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

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

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

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?

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)

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

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?

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

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?

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

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?

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)

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

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

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

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