# Lily

Popular questions and responses by Lily
1. ## Math

The population of a southern city follows the exponential law. If the population doubled in size over 13 months and the current population is 30,000 what will the population be in 5 years from now?

2. ## Math

if two fair dice are rolled what is the probability that the total showing is more than four? Will you please explain how to do this problem? Thank you

3. ## History

What masterpieces were painted by Leonardo da Vinci? Select all that apply. Birth of Venus Mona Lisa Last Supper Starry Night i think it 2 and 3.

4. ## History

Which identifies the political party that believed in strong German nationalism and whose aim was the remilitarization of Germany? National Republican Front National German Front** National Socialist Party National Patriotic Party B?

the ferris wheel at an amusement park measures 16m in diameter. the wheel does 3 rotations every minute. the bottom of the wheel is 1m above the ground... a) determine the simplest equation that models Megan's height above that ground(h) over time (t).

6. ## PHYSICS

Two planes fly from toronto to philadelphia. Plane a flies via pittsburgh whereas passenger on plane B have a direct flight. Pittsburgh is 350km due south of Toronto and 390km due west of Philadelphia. The airspeed of both planes is 400km/h and a steady

7. ## World History

How did alliances between nations serve to escalate World War I? Nations that were on good terms with a nation at war were automatically considered enemies. Nations that shared a common culture were expected to fight on behalf of their neighbors. Nations

8. ## History

Read the sentence.A charter is a(n) ­­­­­_[blank]_. Which most accurately completes the sentence? book of accounting exploration company written grant business journal***

9. ## Math Check

I need someone to please check this for me. Thanks! :) Question: Tonto Pagalies (brother to vaporized racer Teento), an observer at Bindy Bend, is 14285’ from Desert Plain. He knows that there is a right angle between the lines of sight from Bindy Bend

10. ## Probability Math

A committee of four students will be selected from a list that contains six Grade 9 students and eight Grade 10 students. What is the expected number of Grade 10 students on the committee?

11. ## Chemistry

calculate the wavelength of the second line in the Brackett series (nf=4) of the hydrogen emission spectrum. Rh= 2.180e-18 any help please? i know its energy levels 4 to 6... but that is all.

12. ## History

What was World War I’s effect on art in Western societies? Traditional styles were challenged by new abstract and dark themes.** Artistic expression declined because more people saw it as impractical. Artists envisioned a brighter future in which human

13. ## math

In △DEF, DF=16 and m∠F=45. Find the length of a leg. Leave your answer in simplest form.?

14. ## math

What is 29672 rounded to the nearest 500

15. ## Chemistry

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?

16. ## Physics

A football quarterback shows off his skill by throwing a pass 45.90 m downfield and into a bucket. The quarterback consistently launches the ball at 40.00 ∘ above horizontal, and the bucket is placed at the same level from which the ball is thrown. What

17. ## The Watson go to Birmingham 1963?

1. Which of the following passages from the novel best describes the setting? A. It was one of those super duper cold Saturday. B. One of those days that when you breathed kind of hung frozen in the air like a hunk of smoke and you could walk along and

18. ## kempston

i spent 1/4 of my money in one shop and 1/3 of my money in another shop. what fraction was left?

19. ## Physics

A stone is thrown at an angle of 30 degrees above the horizontal from the top of a cliff with an initial speed of 12 m/s. If it hits the ground 4.6 seconds later, what is the height of the cliff?

20. ## FINANCE

You deposit \$2,000 in an account that pays 8% interest compounded semiannually. After 4 years, the interest rate is increased to 8.28% compounded quarterly. What will be the value of the account after 4 more years? (Do not round until the final answer.

21. ## Elementary Math

What if we made a pattern by joining pentagons? If the length of each side of the pentagon is 1 unit, then what would be the perimeter of n pentagons joined together? Note: The perimeter is the distance around the outside of the figure.

22. ## Math

One-quarter of a bread recipe calls for 2/3 cup of bread flour. How many cups are needed per recipe?

23. ## chemistry

Why are half-reactions written to describe redox reactions?

24. ## Chemistry

describe how you would make a 2.5L of a .100M KCL solution from a 5.5M stock solution

25. ## Chemistry

Write skeleton equations for these reactions. a. hydrogen iodide(g) --> hydrogen(g) + iodine(g) b. aluminum(s)+iodine(s)--> aluminum iodide(s) c. iron(II) oxide(s) + oxygen(g) --> iron(III) oxide(s)

26. ## Chemistry

Approximately how many grams of NaNo3 will dissolve in 100g of water at 20 degrees Celsius?

27. ## elementary algebra

ron and kathy are ticket-sellers at their class play, ron handling student tickets that sell for \$3.00 each and kathy selling adult tickets for \$6.50 each. If their total income for 29 tickets was \$125.50, how many did ron sell?

28. ## Math

You roll two fair dice. Let E be the event that an even total shows on the dice. Let F be the event that a six shows on at least one of the dice. Find P(F) and P(F|E). Choices: P(F)=1/3; P(F|E)=1/13 P(F)=1/3; P(F|E)=5/18 P(F)=11/36; P(F|E)=7/18 P(F)=11/36;

29. ## physics

A proton moves parallel to an electric field between points A and B. The change in the proton's electric potential energy is EPEB – EPEA. If the proton is removed from point B and replaced with an electron, how does the change in electric potential

30. ## chem

compute theoretical yield (g) ~2Al+3Cl2->2AlCl3 ~2g Al, 2g Cl2 [ans:2.5g AlCl3] i need the calculation work bcus i got diff from the ans which is 7.12 g.

31. ## physics

Two forces whose resultant is 100newton are perpendicular to each other if one of them makes an angle of 60Â° with the resultant. calculate its magnitude

Which of the following is a true statement? A. -8 > -6 B. 10 < -12 C. -5 > -7 D. -9 >6 This is integers, and I'm stumped. Please help! Thanks.

33. ## Math

Jenny bought scrapbook supplies for \$70.75. She paid \$5.66 in sales tax. What was the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.

34. ## Physics

A negatively charged balloon has 4 μC of charge. How many excess electrons are on this bal- loon? The elemental charge is 1.6 × 10−19 C. Answer in units of electrons.

35. ## Math

Maddy’s loaf tin has three partitioned areas in which to bake three loaves. The outside of the tin along with the partitions is made of 80 inches of material. The area of the entire loaf tin is 192 in2. What are the possible outer dimensions of the loaf

36. ## CHEM redox equations help!

MnO4 ^- + C2O2 ^2- = MnO2 + CO3 ^2- how would you balance this in basic solution? I keep getting the wrong answer.

37. ## Pre calc

8sinxcosx=1 I don't know where to go after 2sinxcosx=1/4

38. ## math

The path of a cannonball is a parabola modeled by the equation y= 55 + x - 0.002x^2, where x and y are both measured in feet. In this model, the cannonball starts at the point (0,55) and travels to the right. The ground is represented by the x-axis.

39. ## Chemistry

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?

40. ## accounting

What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%.

41. ## Geometry

Name the property of inequality that justifies the following statement: If BC+DE

42. ## geometry

the lengths of the diagonal of a rhombus are 2 in and 5 in. find the measure of the angles of the rhombus to the nearest degree. if it helps, we are learning how to use tangent right now!

43. ## pyschology 1

How would you use classical conditioning, operant conditioning, and observational learning to improve your academic performance? Give one example for each type of learning.

44. ## Social Studies

what is the connection among sectionalism, slavery, and states rights as causes of the Civil War? How did the southern response to the 1860 election results demonstrate this connection? Could someone help me with this and explain it?

Choose by Carl Sandburg The single clenched fist lifted and ready,Or the open asking hand held out and waiting.Choose:For we meet by one or the other. What is literally happening in the poem? A.a person is deciding whether to to be open to other humans

46. ## Chemistry

Electron configuration for phosphorus is 1s2 2s2 2p6 3s2 3p3. So the number of electron must be 15 , right ? But , what if m = 1 ? Does it effect the number of electron ?

47. ## Geometry

1. If triangles EIO = UAN, EI = 3x-4, IO = 2x+5, UA = 2x+3 and UN = 3x+1, solve for the value of x, find the perimeter of triangle UAN and identify the smallest angle in triangle EIO. 2. If triangle FAT is equal to triangle GRC, FA = 24cm and the ratio of

48. ## computer and technology

It is important to verify internet source because. ----- choose that apply. A.the source should be written by real author. B.anyone can create a website and write false or inaccurate information on it c.you need to make sure it is owened by a government

49. ## equation and inequalities

Graph the solution of the equation b-15=-12

50. ## Trigonometry

A volleyball player spikes the ball from a height of 2.44 meters. Assume that the path of the ball is a straight line. To the nearest degree, what is the maximum angle, θ, at which the ball can be hit and land within the court?

51. ## Physics

The tightrope walker gets tired and decides to stop for a rest. During this rest period, she is in translational equilibrium. She stops at middle of the rope and finds that both sides of the rope make an angle of è = 10.00° with the horizontal. If the

52. ## Chem, HELP plz

Complete and balance the following reaction, given that elemental rubidium reacts with elemental sulfur to form Rb2S?

53. ## Geography

What are factors leading to growth in lagos: Geographical Economic Political

54. ## ap chem

calculate the enthalpy of formationof solid MgOH2, given the following data: 2Mg(s) + O2(g)-> 2MgO(s) heat:-1203.6 Mg OH2(s) -> MgO(s) +H2O(l) heat: 37.1 2H2(g)+ O2(g) -> 2H2O(l) heat: -571.7 what equation would they want the three equations to develop

55. ## math

Combine the like terms to create an equivalent expression. 6t+7-2+t

56. ## Social studies

which roles were brothers and sons expected play in Africa's matrilineal culture? A. Sons helped their mothers brothers as needed. B. Sisters is protected their brothers. C. Son’s health their mothers sisters as needed. D. Brother is protected their

57. ## science

2. Compare and contrast deductive reasoning and inductive reasoning. Based on the information given here, answer the following questions about the experiment: • What are the qualities of deductive reasoning? • What are the qualities of inductive

58. ## Chemistry

Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming", in which methane gas, CH4, from natural gas reacts with water vapor to

59. ## Chemistry

Write the formation equation for the ester that forms between propanoic acid and 1-pentanol. Include the names of the products and the structures for all substances involved.

60. ## algebra

A mother is 21 years old then her new born daughter. how old does her daughter when her age will be 1 by 4 of her mother

61. ## Math

Jenny bought scrapbook supplies for \$70.75. She paid \$5.66 in sales tax. What was the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.

62. ## psychology

Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when

63. ## language art

In all together now Jordan states that there were marches and protest against segregation and discrimination in the 1960s. What make this statement a fact? A.it was stated In persuasive essay b. It is an emotional statement. C.it can be proven in an

64. ## Precalc

Two lookout towers are situated on mountain tops A and B, 4 mi from each other. A helicopter firefighting team is located in a valley at point C, 3 mi from A and 2 mi from B. Using the line between A and B as a reference, a lookout spots a fire at an angle

65. ## geometry

Eddie is arguing with tana about the probability of flipping three coins. They decided to flip a penny, nickel, and a dime. Which would be better determining the sample space, a tree diagram or an area model? Justify your answer.

66. ## AP Giannini

Dexter makes a scale drawing of his room. In real life, the room is 10' wide and 12'6" long. In Dexter's drawing, the room is 4"wide, what measure should the length be? explain how you figure this out.

67. ## Accelerated Algebra

it takes 80 feet of fencing to enclose your garden. According to your calculations,you will need 350 square feet to plant everything you want. Is your garden big enough? Explain your answer. They gave a rectangle length=40-x and width= x I asked my mom and

68. ## Chemistry

The equilibrium constant Kc^i is 3.2x10^-34 at 25 degrees C for 2HCl(g) -> H2(g) + Cl2 (g). The equilibrium constant Kc^ii is .10 at 25 degrees C for 2ICl (g) -> Cl2 (g) + I2 (g). a) Calculate the equilibrium constant Kc for the reaction below at 25 C

69. ## physics

When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

70. ## chemistry- can you check my answers?

can you please check my answers?? 9. For the following reaction delta H=2816 kj. 6 CO2(g) + 6 H2O(l) -> C6H12O6(s) + 6O2(g) how is the equilibrium yeild of C6H12O6(s)affected by each of the following? a) increasing pressure of CO2 increase decrease no

71. ## algebra 1

Which statistical method best represents this set of data? 1,2,5,2,3,7,300,5,3,3 a.mean b.median c.mode d.standard deviation I'm pretty sure it's B or C, but they are both the same number.

72. ## MATH

1. A father is three times as old as his son. Five years ago the sum of their ages was 30. How old is the father now? Choices; 30, 35, 40, 45, 50 2. A mother is four times as old as her daughter. In two years, the sum of their ages will be 44. How old is

73. ## psychology

what are four subfields of psych?

74. ## Chemistry

Al(s) + H₂SO₄(aq) → Al₂(SO₄)₃(aq) + H₂ (g) Which of the following are the PRODUCTS in the NET ionic equation? Is the answer Al³⁺, H₂, H₃O⁺ ? or is it Al³⁺, H₂, H₂0

75. ## math

a circular tablecloth has a radius of 2.5 feet. kyle is sewing a piece of ribbon around the edge of the tablecloth. if kyle has exactly enough ribbon, which measurement is closest to the length of the piece of ribbon in feet? a. 19.63 ft b. 15.7 ft c. 7.85

76. ## Math - Trig

This is the question: Two spruce trees are 100m apart. From the point on the ground halfway between the trees the angles of elevation are 21 degrees and 39 degrees. Determine the distance, to the nearest metre, between the tops of the two trees. Show your

77. ## Science

Why do oceanic plates dive underneath continental plates when they collide?

78. ## Social Studies

Why did the House of Representatives impeach President Johnson? a- He had not been elected by the voters. b-He had fired the Secretary of War illegally. c-He had appointed temporary southern governors. d-He had required states to approve the Thirteenth

79. ## civics

why do legislative districts vary so muc in size?

80. ## Chemistry

The reaction of nitrogen dioxide with fluorine generates nitryl fluoride: 2NO2(g) + F2(g) --> 2NO2F(g) To determine the rate law for this reaction, a chemist performed several initial-rate experiments using different initial concentration, with the details

81. ## Social studies

which of the following were effects of pizarro and cortes defeat of native americans Settlement and colonization of Florida under Spanish rule Inspiration for other Europeans to being explanations and settlement •• Settlement and colonization in the

82. ## chemistry

Imagine that you have a 5.50 L gas tank and a 3.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm , to what

83. ## Math

Tiffany is constructing a fence around a rectangular tennis court. She must use 300 feet of fencing. The fence must enclose all four sides of the court. Regulation states that the length of the fence enclosure must be at least 80 feet and the width must be

84. ## Calculus

A balloon is rising at a constant speed of 5 ft/sec. A boy is cycling along a straight road at a constant speed of 15 ft/sec. When he passes under the balloon, it is 5 feet above him. Determine how fast the distance between the boy and the balloon is

85. ## exponents ,factor,fraction

The glee club has a set of 48 classical CD and a set of 42 show tune CD. Each set can be divided equally among the club member.what is the greatest possible number of club member. A.12. B.3. C.6. D.336

86. ## chemistry

A voltaic cell is constructed with all the reactants and products in their standard states. Will this condition hold as the cell operates? Explain.

87. ## English

What's the relative clause in this sentence His questions revealed an intelligence that was beyond his young years

88. ## Algebra 2

State the possible number of imaginary zeros of f(x)= 2x^3 - 4x^2 + 8x - 3. 0,1,3?

89. ## college math

A lawn mower handle makes an angle of 60° with the ground. A woman pushes on the handle with a force of 30 pounds. How much work is done in moving the lawn mower a distance of 75 feet on level ground?

A 37.5-kg child swings in a swing supported by two chains, each 3.05 m long. The tension in each chain at the lowest point is 433 N. the force of the seat on the child is 498.5 N. b)Find the force exerted by the seat on the child at the lowest point.

91. ## Alg. II

Simplify. Identify any x-values for which the expression is undefined. 1. (4x-8)/(x^2-2x) 2. (8x-4)/(2x^2+9x-5)

92. ## biology

The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of

93. ## chemistry

It's January in Nashville and your local weather station just informed you that the temperature outside is -8.9 degrees Celcius. You estimate the amount of ice on your driveway to be approximately 30kg. What is the minimum amount of sodium chloride in

94. ## Algebra 2

Factor completely 4ab + 2a + 6b + 3 (2a + 3) (2b + 1)?

95. ## Physics

How much copper would be plated by a current of 1.5 A in a time of 1.0 h?

96. ## math

To make a gallon of a paint color, Lou mixes 1/6 gallon of yellow paint with 2/3 gallon of blue paint. Lou fills the rest of the can with white paint to make one gallon of paint. Enter the amount of white paint will Lou need to add to make a full gallon of

97. ## History

Please help within the hour thanks. Which factors kept invaders out of Arabia? A.Hot temperatures and deserts B.Cold temperatures and mountains C.Lack of water and cold temperatures D.Lack of water and mountains

98. ## Organic Chem

A student prepares ethyl benzoate by the reaction of benzoic acid with ethanol using a sulfuric acid catalyst. The following compounds are found in the crude reaction mixture: ethyl benzoate (major component), benzoic acid, ethanol, and sulfuric acid.