# Allison

Popular questions and responses by Allison
1. ## Trigonometry

If the shadow of a building increases by 10 meters when the angle of elevation of the sun rays decreases from 70o to 60o, what is the height of the building?

2. ## Math

Four girls bought a boat for \$60.00. the first girl paid-one half the sum of the amounts paid by the other 3. The second girl paid one-third the sum of the amounts paid by the other 3. The third girl paid one-fourth the sum of the amounts paid by the other

3. ## Government

1. The U.S. Constitution's Article I, Section 1 created the office for the U.S. president. A) True B) False 2. The term of office for a House member is two years. A) True B) False 3. Two requirements for members of the House are that they must be 25 years

4. ## government

1. The Framers of the US Constitution supported political parties. A) True B) False 2. The US is predominantly a multiparty system. A) True B) False 3. The main focus of major parties is to nominate candidates and get them elected. A) True B) False 4. The

5. ## Physics Honors

How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees above the horizontal to reach the ground 150 meters below?

6. ## math

Name the sets of numbers to which the given number belongs 60/47

7. ## Calculus

Squares with sides of length x are cut out of each corner of a rectangular piece of cardboard measuring 3 ft by 4 ft. The resulting piece of cardboard is then folded into a box without a lid. Find the volume of the largest box that can be formed in this

8. ## Math

The diameter of a car's tire is 52 cm. While the car is being driven, the tire picks up a nail. How high above the ground will the nail be after the car has travelled 0.1 km? It also asked me to graph this information. So I created a periodic graph that

9. ## math

joe drank 4 liters of water on monday and 4 deciliters of water on tuesday.how much more water did he drank on monday than on tuesday

10. ## physics

a car is traveling 20.0 m/s when the driver sees a child standing in the road. he takes 0.80 seconds to react, then steps on the brakes and slows at -7.0 m/s squared. how far does the car go before it stops?

11. ## Trigonometry

Karla is riding vertically in a hot air balloon, directly over a point P on the ground. Karla spots a parked car on the ground at an angle of depression of 30o. The balloon rises 50 meters. Now the angle of depression to the car is 35°. How far is the car

12. ## Physics

a transport truck pulls on a trailer with a force of 600 N {E}. the trailer pulls on the transport truck with a force: a) zero b) of less than 600 N[W] if the truck is slowing down. c) equal to 600 N [W] only if the truck is moving at constant velocity d)

13. ## Grade 11 math - HELP!

The diameter of a car's tire is 52 cm. While the car is being driven, the tire picks up a nail. How high above the ground will the nail be after the car has travelled 0.1 km? can someone please explain how to solve this question?

14. ## chemistry

Enthalpy and Entropy in Reactions and Solutions Introduction In the course of most physical processes and chemical reactions there is a change in energy. In chemistry what is normally measured is H (enthalpy change), the change in heat at constant pressure

15. ## AP Chemistry

A solution is made by mixing exactly 500 mL of 0.167 M NaOH with exactly 500 mL of 0.100 M CH3COOH. Calculate the equilibrium concentrations of H+, CH3COOH, CH3COO-, OH-, and Na+.

16. ## Physics!

The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36 km/s. The second star, Beta, has an orbital speed of 12 km/s. The orbital period is 137 d. a) What is the mass of the star alpha? b)

17. ## Calculus

a) Find a Cartesian equation relating and corresponding to the parametric equations: x=2sin(3t), y=9cos(3t). Write your answer in the form P(x,y)=0, where P(x,y) is a polynomial in x and y, such that the coefficient of y^2 is 4. b)Find the equation of the

18. ## chemistry

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure. Its formula can be written as Na2CO3·x H2O, where x is the number of moles of

19. ## Biochem

Consider the malate dehydrogenase reaction from the citric acid cycle. Given the following concentrations, calculate the free energy change for this reaction at 37.0 °C (310 K). ΔG°\' for the reaction is 29.7 kJ/mol. Assume that the reaction occurs at

20. ## U.S. Government

1. Amendment -- gave all men the right to vote regardless of race. - 15? 2. People who believe voting is important have high political ----c-c-. - efficacy? 3. It is an essential part of democracy in action, for the people to ---e. - vote? 4. The age

21. ## Government

1. States must honor each other's laws and court decisions according to... (C) A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of

22. ## Chemistry

Write the IUPAC name for straight-chain hydrocarbon with this formula: CH3CH2CH2CH2CH2CH2CH3 Write the IUPAC name for any branched-chain hydrocarbon with this formula:C9h20

23. ## Physics Honors

An egg is thrown horizontally off the roof of SI, which is 60 meters high, with an initial velocity of 6.5 m/s. How long does it take to hit the ground? How far does it go in the x direction?

24. ## Physics HELP!

You are at the controls of a particle accelerator, sending a beam of 3.90×10^7 m/s protons (mass m ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the

25. ## Chemistrty Help

Calculate the wavelength of each of the following frequencies of electromagnetic radiation. 1040 kHz} (typical frequency for AM radio broadcasting) (assume four significant figures) in METERS? Can someone help me?

26. ## differential equations

the directions are to determine whether or not the equation is exact if so then solve it. the question is (x-y^3+ysinx)dx = (3xy^2+2ycosx)dy i solve and i got that it is exact because My is -3y^2+2ysinx and Nx is -3y^2+2ysinx since m and n are equal then

27. ## Chemistry

The latent heat of vaporization of ethanol is 200 calories/gram. This means that _____.

28. ## Chemistry - Van't Hoff Factor

How do I determine the van't hoff factor for a strong unknown electrolyte? I have the freezing point depression, (0.46 C) and there 18 ml of the unknown solution. I know the formula is T=iKfm, but I don't know how to apply it when I don't know m.

29. ## statistics

If I know that a set of test scores has a mean of 75 and a standard deviation of 8 what can I conclude?

30. ## Government

1. States must honor each other's laws and court decisions according to... A) 1st Amendment B) Privileges and Immunities Clause C) Full Faith and Credit Clause D) Revenue Sharing 2. The National Government can enter a State to restore order in cases of

31. ## Spelling

The homework question that I just posted at 7:03pm is for a kindengarden.

32. ## Physics Honors

A bullet is fired from a rifle, emerging at 340 m/s. It strikes a sandbag some distance away, having lost 10% of its velocity due to air resistance. if it penetrates the sandbag to a depth of 12 meters, how long did it take for the bullet to come to rest

33. ## chemistry

A laboratory has a 2.0-mol sample of pure selenium and a 2.0-mol sample of pure chromium. How many more grams of selenium than chromium does this represent?

34. ## Grade 11 math - HELP!

Skyscrapers sway in high-wind conditions. in one case, at t=2s, the top floor swayed 30cm to the left (-30cm), and at t=12, the top floor swayed 30 cm to the right (+30cm) of its starting position. a) what is the equation of a sinusoidal function that

35. ## phsyics

The 3.0cm-diameter water line in the figure splits into two 1.0cm -diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 m/s and the gauge pressure is 50 kPa. What is the gauge pressure at point B. I keep

36. ## French

What word is NORCETMAIN unscrambled in French?

37. ## the language of healthcare

Describe the following approaches used to organize information about the body. Also provide an example for how each approach is used. Body planes and directions Body Cavities Quadrant and regions Anatomy and physiology Microscopic-to-macroscopic Body

38. ## Math

the ratio of father's age to his son age is 8:3. in 5 year's time the sum of their ages will be 54. how old are they

39. ## college math

a basketball team played 68 games they won 22 more than they lost. how many games did they win? how many games did they lose?

40. ## Chemistry

What mass of octane must be burned in order to liberate 5410 kJ of heat?

41. ## Physics

An electric dipole is formed from two charges, ±q, spaced 1.00cm apart. The dipole is at the origin, oriented along the y-axis. The electric field strength at the point (x,y)=(0cm,10cm) is 320N/C . What is the charge q? Give your answer in nC. What is the

42. ## algebra 2

Teaneck High had an enrollment of 11050 in 1990 and an enrollment of 13390 in year 1998. What is the predicted enrollment of Teaneck High in 2018 if we assume a linear model?

1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the

44. ## Math

Find the radius of a right circular cone if its volume is 1.5 times its lateral area and its radius is half its slant height.

45. ## Chemistry Help!

If 100 grams of KClO3 are heated to form KCl and O2 according to the equation KClO3 ¨ KCl + O2 (Hint: You need to balance the equation) a. How many moles of KClO3 reacted? b. How many moles of KCl are formed? c. How many grams of KCl are formed? d. how

46. ## math

the distance between new york city and boston is 189.9 miles as the bird flies.how far is it in kilometers?

47. ## Crime scene chemistry

What would happen to the denisty of a plastic sample if an excessive number of air bubbles were allowed to accumulate on the plastic surface when placed into the solution?

48. ## math

Multiply ã7(ã10-ã6)

50. ## Physics Honors

A ball is kicked horizontally at 8.0 m/s from a cliff 80 meters high. How far from the base of the cliff will the stone strike the ground?

51. ## Physics Honors

A football is kicked with an initial velocity of 25 m/s at an angle of 45 degrees with the horizontal . Determine the time of flight, the horizontal distance, and the peak height of the long jumper.

52. ## Physics Honors

A bullet is fired from a rifle, emerging at 340 m/s. It strikes a sandbag some distance away, having lost 10% of its velocity due to air resistance. if it penetrates the sandbag to a depth of 12 meters, how long did it take for the bullet to come to rest

53. ## language

how has workng together changed history?

54. ## Physics - Newton's first law

A pair of fuzzy dice hang from the rear view mirror of a car. For each of the motions indicate which way the dice would move and why: a) constant velocity forward b) speeding up backward c) slowing down forward I understand that when the car's state of

55. ## Physics

An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 43 steps at an angle 45north of east, then 80 steps at an angle 60 north of west, then 51 steps due south. Assume his steps all have equal length. Save him from becoming

56. ## Trigonometry

Sketch a height versus time graph of the sinusoidal function that models each situation. draw at lease three cycles. assume that the first point plotted on each graph is at the lowest point: a girl lying on a an air mattress in a wave pool that is 3 m

57. ## AMERICAN GOVERNMENT

Why does the Constitution and the Declaration of Independence are called Living documents? I need an answer why to write my government report. The Constitution is a living document because we can amend and change it. Also, the Supreme Court continuously

58. ## Chemistry

Consider these reactions, where M represents a generic metal. 2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)Δ𝐻1=−740.0 kJ HCl(g)⟶HCl(aq) Δ𝐻2=−74.8 kJ H2(g)+Cl2(g)⟶2HCl(g) Δ𝐻3=−1845.0 kJ MCl3(s)⟶MCl3(aq) Δ𝐻4=−254.0 kJ Use the given

59. ## pre-calc

An auditorium has 24 rows of seats. There are n = 23 seats in the first row, 24 seats in the second row, 25 seats in the third row, and so on. How many seats are there in all 24 rows?

60. ## Chemistry

how many mL of .122 M MnO4- are required to react with an excess of C2O42- in order to produce 75.25mL of carbon dioxide gas measured at 30 degree C and 715 torr?

61. ## Computer Science

Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2.

62. ## health

Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds I think its B

63. ## Geometry

Given: B is the midpoint of line AC. D is the midpoint of line CE. Ab=De Prove AE=4AB

64. ## chemisty

find the oxidation state of a carbon in methane, carbon monoxide, carbon dioxide, CH2O, acetic acid, carbonic acid, methanol, and benzene (C6H6)

65. ## chemistry

find mass of sulfuric acid obtained in reaction of 20.0g if sulfur trioxide with excess of water

66. ## Physics

Station Math Two station astronauts will each perform two 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish

67. ## maths

by how much does the 3 in 34685 exceed the 3 in 23487

68. ## Chemistry

What is the theoretical yield of ethyl chloride in the reaction of 19.2g g of ethylene with 48g g of hydrogen chloride?

69. ## Math

Sandy works at a clothing store. She makes \$9 per hour plus earns 10% commission on her sales. She worked 78 hours over the last two weeks and had a total of \$2,340 in sales before taxes. Which of the following is closest to how much she will earn in

70. ## Physical Science

Compute the wavelength in air of ultrasound with a frequency of 50 kHz if the speed of sound is 344 m/s.

71. ## calculus

Two cars start from the same point at the same time. One travels north at 25 mph, and the other travels east at 60 mph. How fast is the distance between them increasing at the end of 1 hr? Find D after 1 Hr, solve D^2=25^2+ 60^2

What is porosity and permeability? Thanks

73. ## social studies

whatevent led the United States protest German actions in 1915

you are saving for your child's college.. there are 15 years before they will be in college. you have saved 0 so far. Your goal is \$98,000. assume annual in rate is 8%. how much must you save at the end of each year in equal amounts to reach your goal? I

75. ## Physics -.-

A projectile is shot horizontally at 220 m/s from the top of a 620 m high cliff. A) How long till the projectile hits the ground? B) How far from the base of the cliff does the projectile land? I am gonna be honest. I have no idea how to do any of my

If m

77. ## Math

Can you show us how to find the discriminant of the quadratic x^2 + 2x -2 =0

78. ## math

write an equivalent expression using radical notation 625 3/4 Help

79. ## Math

Simplify by factoring Assume that all expressions under radicals represents non negative numbers 3square root symbol 162x8 I end up with 3x 3squareroot symbol 2x^5 I don't think this is correct help

80. ## Physics Honors

A pool ball leaves a 0.60 meter high table with an initial velocity of 2.4 m/s. Predict the time required for the pool ball to fall to the ground and the horizontal distance between the table's edge and the ball's landing location.

81. ## Calculus

Let f(x)=21−x^2 The slope of the tangent line to the graph of f(x) at the point (−4,5) is ______ . The equation of the tangent line to the graph of f(x) at (−4,5) is y=mx+b for m=______ and b=_______.

82. ## Science

You have two cups, one containing 100 g of ice at 0oC, the other containing 100 g of water at 80oC. You pour the hot water into the cup containing the ice. What do you wind up with? A) 100 g of 0oC water and 100 g of 80oC water. B) 50 g of 0oC ice and 50g

83. ## physical science

A boy with a mass of 30 kg stands motionless at the end of a diving board 3 m above the floor. The boy has: Answer no energy. kinetic energy only. potential energy only. both kinetic and potential energy.

84. ## physics

If a speeding car slams into a brick wall and comes to rest, how will the impulse that acts on it compare with gradually slowing down and coming to rest?

A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest. a) what was the paseenger's kinetic energy before the crash b) What average force

86. ## Oral presentation

My teacher gave us a sonnet and he said that we have to do an oral presentation that faithfully interprets the meaning of the poem. Do you have any ideas on how to make an oral presentation describing a poem. Should I explain line by line or just put the

87. ## Math

Miles said that he measured an angle of a regular polygon to be 130 degress. Explain why this result is impossible.

88. ## english LAC 1

11. What kind of complement is the underlined word? Mom, give us a break, just once. (Points : 5) direct object indirect object predicate nominative predicate adjective 12. What kind of complement is the underlined word? Isn't this movie The Black

89. ## math-finance

Colin borrowed some money at 7.16%?a compounded quarterly. three years later. he paid \$5000 toward the principal and the interest. after another two years, he paid another \$5000. after another five years, he paid the remainder of the principal and the

90. ## Math

Find the second derivative of x(x+1)^3

6+x=2x-14. I'm not to sure how to solve this type of equation.

92. ## Math

maria's bicycle has a diameter of 64 cm. as she rides at the speed of 21.6 km/h, she picks up a stone in her tire. draw a graph that shows the stone's height above the ground as she continues to ride at this speed for 2 s more. can someone please help me

93. ## tourism

which aTourism gencies in Jamaica govern

94. ## history- political science

Hi everyone =D thanks in advance to those who helped me. I am in need of a format or outline of some kind to help me write my 5-6 page term paper that is based on three books comparing and contrasting the themes within all three of their historic concerns

95. ## PHYSICS

A satellite is placed in orbit 6.30*10^5 m above the surface of the planet Jupiter. Jupiter has a mass of 1.90 1027 kg and a radius of 7.14*10.7 m. Find the orbital speed of the satellite.

96. ## chemistry

calculate the heat required to raise the temperature of 1.00 L of water from 17.0 degrees celcius to the boiling point

97. ## algebra 2 / trig

what is the square root of negative 150?

a little spider monkey (let's call her flo) has stolen a bunch of bananas from her older brother charley and is now running away from him with the bananas in hand. she sees salvation in a long vine and grabs the bottom, hoping to swing away. a) is flo, who

99. ## physics for bobpursley

a little spider monkey (let's call her flo) has stolen a bunch of bananas from her older brother charley and is now running away from him with the bananas in hand. she sees salvation in a long vine and grabs the bottom, hoping to swing away. a) is flo, who