DD

Newest questions and responses by DD
1. social studies

what is the preamble to the constitution?

2. math

Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in the following box plots: two box plots shown. The top one is labeled Males. Minimum at 1, Q1 at 3, median at 10.5, Q3 at 14,

3. maths

two poles 6m and 15m tall are 20 m apart a wire is attached to the top of each pole and is also staked to the ground some where b/n two poles where should be the wire be staked so that the minimum amount of wire be used?

4. MATH

Out of 1200 pupils in a school, 900 are boys and the rest are girls. If 20% of the boys and 30% of the girls wear spectacles,find: a.how many pupils in wear spectacles b.what percent of the total number of pupils wear spectacles.

5. math

If you cut off 5pieces of glass from a 14 feet long, how long should each pieces

6. History

which answer best describes andrew johnson's relationship with the radical republicans? A:he founded the radical Republican movement B: he worked with the radical Republicans to pass important legislation C: you frequently voted legislation presented by

7. math

A flag pole sits on the front lawn of a school, 6.6 m from the front door. The angle of elevation from the base of the school to the top of the pole is 38°. Determine the height of the flagpole, to the nearest tenth of a metre.

8. Social studies

5. William Tecumseh Sherman's "march to the sea" headed toward; A) Charleston, SC ****** B) Richmond Virginia C) Savannah Georgia D) Baltimore, Maryland 7. What battle began when the Union cavalry surprised the Rebel infantry raiding the town for shoes? (1

9. english

2. Which of the following is the best reason to use visuals in a research presentation? A)) to illustrate your main point in an engaging manner B)) to illustrate any topic with data in percentages C)) to show different ways of looking at the same

10. english

which sentence contains a participial phrase? a) she wanted to spend time writing. b) her job is giving the attic dwellers their food. c) quickly snatching up the coat, she ran to her room. d) to get along well requires cooperation. which sentence contains

11. english

In the following sentences, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. (1 point) a) everyone b) annex c) heard d) her pl E A S E HE L P

12. chemistry

What is the molality of 67.1g of Nano3 in 2.5l of water i get the molar mass of nano3 and divide it by the 67.1g and multipy it by 2.5l

13. chemistry

calculate the energy required to raise the temp of 72g of water from 50c tp 150

14. chemistry

is finding the molality and molarity the same concept

15. chemistry

how much heat is required to raise a 54g sample of water from -20 celsius to 90 celsius explain

16. chemistry

How do u tell of a solute is polor or non polar based on what

17. chemistry

how many moles of solute are contained in 18.5ml 2.5m CaCL2

18. chemistry

What is the ppm of 4.50mg of ddt in 10kg of seal fat?

19. chemistry

Increasing pressure does what to solubility. Increasing surface area? increasing temp?

20. algebra2

Tim has a pool slide that makes an angle of 25 with the water the top of the slide stands 4.5feet above the surface of the water A:how far out into the pool will the slide reach B:The slide makes a straight line into the water. How long is the slide

21. algebra2

At a hot air balloon festival jim watches a hot air balloon rise form a distance of 200 yards. A:From jims position the ballon seen to hover at angle of elevation of 50 What is the height of the ballon B:After a while the ballon seems to hover at an angle

22. algebra2

A kite string is 102 feet long. the angle between the kite string and the ground is 54.9. how high is the kite

23. algebra2

MS TAn bought a bmw for 62,000. The price of a bmw depreciates at the rate of 12% per year. How much will the saving account have after 30 years

24. algebra2

a saving account with an initial balance of \$15000 grows at 1.33percent per year compounded continuously. How much will the saving account have after 30 years?

25. calc

Each of the regions A, B, and C bounded by f(x) and the x-axis has area 5. Find the value of ∫2 [f(x)+3x^2+2]dx. −4 I know to solve I can find the antiderivative of the equation but im not sure how to do this because of the f(x) in the parentheses.

26. physics

Two blocks with masses m1 = 13.4 kg and m2 = 74.2 kg, shown in the figure, are free to move. The coefficient of static friction between the blocks is 0.55 but the surface beneath m2 is frictionless. What is the minimum force F required to hold m1 against

27. math

Your store’s average basket (transaction) size for the month of March was \$11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of \$9.00 for the month of March

28. Math

If 1/3 of. My salary is in one bank, 1/5 in another and 1/6 in another how much I have left

29. Statistics

Suppose 5 cards are drawn, without replacement, from a standard bridge deck of 52 cards. Find the probability of drawing 4 clubs and 1 non- club.

30. Chemistry

The density of methanol is .7918 g/ml/ How many grams of methanol do I have to add to 35.0ml of water to make a solution containing 25% methanol?

31. statistics

Researchers conducted a survey of parents of 66 kindergarten children. The parents were asked whether they played games with their children. The parents were divided into two groups: working class and middle class. The researchers wanted to know if there

32. Math

Which statement(s) is/are true?Select one of the options below as your answer:A. A 25° angle is congruent to a 25° angle.B. Two intersecting lines form two pairs of congruent angles.C. It is possible for congruent angles to add up to 90°.D. All of the

33. math

x-y+z=3 2x-y+z=4 x+2y-z=-1 solve in Gaus-Jordan method

34. physics

A coil consists of N=105 turns of wire wrapped uniformly around a plastic torus. The inside radius of the torus is r0=0.12 m and the outer radius is r1=0.14 m. Thus, each winding has a diameter d=0.02 m. What is the self-inductance (in H) of this coil?

35. physics

Consider a circuit with an RL series with L=0.09 H and R=0.05 Ohm. At t=0 the circuit is connected to a battery which provides V0=12 V. (a)How long does it take to the current to equal a fraction 0.95 of the steady state current? (b) What is the energy

36. physics

Consider the process of charging a parallel plate capacitor with circular plates of radius R=5 cm separated by a distance d=0.2 cm. At some time t1, the capacitor is being charged with a current I=0.075 A. Consider a point P on the plane which is equally

37. physics

Compare the total magnetic energy in two solenoids, each with N turns, area A, and current I, but length x and 2x. Denote Ux the total magnetic energy in the solenoid with length x, and U2x the one in the solenoid with length 2x. What is U2x/Ux?

38. chemistry

2. Baking soda is sodium bicarbonate (NaHCO3). When you heat baking soda, it breaks down into sodium carbonate powder (Na2CO3), water vapor, and carbon dioxide. The enthalpy of this reaction is 129 kJ. Write a correct thermochemical equation for this

39. physics

if a steel flagpole get 5.1 mm taller when temperature increase by 5.0 degree celsius approximately how tall is the flagpole?

40. Chemistry

How do I figure out how to balance 1 mole of carbonic acid with 1 mole potassium hydroxide? And balance a chemical reaction of sodium bicarbionate with hydrochloride acid?

41. physics

a cyclist must travel 1500 km . how many days will the trip take if the cyclist travels 8 h/day at an average speed of 25 of 25 km/h ?

42. economics

For example the productive needs of the firm would be to set (Marginal Revenue = Marginal Costs (MR = MC) and create excess profits for the firm. However, as far as what is in the best interests of society it might be Price or (Average Revenue) = MC. Give

43. economics

How do minimum wages affect equilibrium price?

44. maths methods

Find the angle of depression from top of a 500 m long chairlift with a vertical height of100 m

45. physics

1. The best leaper in the animal kingdom is the puma, which can jump to a height of 12 ft when leaving the ground at an angle of 45°. With what speed, in SI units, must the animal leave the ground to reach that height?

46. math

is the realtion a function? explain (1,1), (2,1), (3,1), (4,1)

47. Math

An open box with a square base is to bemade to organize items in the trunk of a car. It is planned to use an area of 16m square of flexible plastic forthis box. What are the dimensions of the box for max volume?

48. college Chemistry

what is the amount of heat lost in KJ for 50 ml of water going from 70.0 degrees C to 1.0 degrees?

49. physics

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.5 m/s2. The magnitude of the car's velocity at the

50. algebra

How do you find any x-intercepts and y-intercepts. If no x-intercepts exist, state this. g(x)=2x^2+3x-1

51. french

what does this mean in english ecris la partie correcte d,aller apres chaque nom ou pronom

52. math

solve the system of equation by graphing then classify the system as consistent or inconsistent and as dependent or independent 8x-4y=-20 4y-8x=-20

53. math

Solve -0.6x < -24 x=-40 the solution is {x|

54. math

solve using the multiplication principle. -1/2x=-3/4

55. math

0.6x+2 ¡Ü 1.4x-1

56. algebra

translate to an algebraic expression the product of 37% and some number

57. Algebra

evaluate z+y/9 for z=62 and y=10 z+y/9=

58. math

Determine whether (-2,-1) is solution of 7x+6y=-3

59. science

how many tornados dose ohio average

60. science

what site would i go to to summerize the climate changes that have accured from the past to the present and predict what you think the Earth will look like into the 21st. century????

61. human services

I am to identify the needs and expectations of P.E.A.C.E domestic violence agency in human service plan, can anyone suggest a web site that I might read and learn these identities and name the different types of stakeholders.I want to check out other sites

62. human services

I need help with identifying the elements of an effective program plan through out an evaluation

63. MATH

I REALLY NEED HELP CAN YOU HELP ME PLEASE

64. government

Why is the president more successful in foreign policy? This difference narrowed from 1965 to 1975 (55% foreign policy to 46% domestic policy). What explains the president’s poorer recent performance in foreign policy?

One of the problems of liberty is that one person’s liberty sometimes conflicts with another’s liberty and one must take precedence. How would you resolve the following conflicts between rights of the individuals and why? [h] Fountain Valley High

66. Criminology

Help, I don't know where to begin. Your supervisor would like you to do some research in preparation for an article regarding the application of modern theories of criminal thinking and criminal behavior of famous criminals in American history to be

67. English

Can somesome read this for me and give me any feedback that's necessary. The first paper that I wrote was a narration paper this paper deals with joining a series of events within the first paper that I wrote I walk you through how you really cant trust in

68. English

Can someone please read this paper and give me any feedback to help improve this paper. I'm not good at writing papers. Thanks In 2005 the Dial Corporation announced that it would be laying fifty people off for the needs of the business. the fifty people

69. English

Can somebody proofread this and tell me if its okay. The day was October 30, 2005 I went work at the Dial corporation like any other day. Little did I know that this would be unlike any other day that I had ever worked in all the four years that I had been

70. English

Choose three items from the list below. Define your three chosen errors. Write two sample sentences for each choice: one that demonstrates the error and one that corrects the error. In a paragraph, describe how you plan to improve these areas in your

71. CHEM

A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid. Determine how much sulfuric acid (in metric tons) is produced by the combustion of 1.1 metric ton of

72. chem

A particular coal contains 2.55% sulfur by mass. When the coal is burned, it produces SO2 emissions which combine with rainwater to produce sulfuric acid. Determine how much sulfuric acid (in metric tons) is produced by the combustion of 1.1 metric ton of

1. algebra

posted on October 17, 2018
2. Statstistics

dd

posted on October 4, 2018
3. math

dfd

posted on September 13, 2018
4. Maths

-sin 23

posted on June 11, 2018
5. Math

✔ vi Gg

posted on May 4, 2018

Thank you

posted on April 24, 2018
7. Chemistry

No clue

posted on April 8, 2018
8. Math

posted on January 26, 2018
9. Math

posted on January 26, 2018
10. AP BIO

ss

posted on January 17, 2018
11. Algebra 1 help

dd

posted on January 12, 2018
12. Math

12

posted on November 29, 2017
13. Math

2.48>2.4 1>2.463

posted on October 27, 2017
14. history

i mean this test

posted on October 4, 2017
15. history

what lesson is it

posted on October 4, 2017
16. math

how is the sentence "15 more than x is 5" written as an equation? A. x+5=15 B. x=15+5 C. x-15=5 D. x+15=5 is the answer B.

posted on August 31, 2017
17. science

this is an object

posted on August 3, 2017
18. math

1248

posted on June 8, 2017
19. physics

edfv

posted on February 7, 2017
20. math

Yesssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss!

posted on January 30, 2017
21. Math 6th

hyffdf

posted on January 17, 2017
22. social studies

jygfgvhbj

posted on December 12, 2016
23. Math

You guys suck

posted on November 3, 2016
24. Corporate Finance

da

posted on October 22, 2016
25. math

Folow the equation a squared + b squared = d squared

posted on May 11, 2016
26. math

dfdf

posted on April 19, 2016
27. Managerial Econ

2.5

posted on February 20, 2016
28. Health

Thanxs salted caramel

posted on January 8, 2016