# need help

Popular questions and responses by need help
1. ## MATH

the empire state building in new york is 1250 feet tall it has 103 floors rounded to the nearest whole what is the height of each floor?

2. ## Geometry

The following two-column proof with missing statements and reasons proves that if a line parallel to one side of a triangle also intersects the other two sides, the line divides the sides proportionally: Statement Reason 1. Line segment DE is parallel to

3. ## ART

how does a landscape artists make an object in the foreground appear closer than an object in the background? a~by making the object in the foreground larger in comparison the background objects. b~by making the object in the foreground less detailed in

4. ## Algebra

name to which subset of the real numbers wo which each number belongs 2/3 = Rational -1 = Integer 17/4573 = rational square root of 113 = Irrational

5. ## Algebra

An isosceles triangle has at least two congruent sides.the perimeter of a certain isosceles triangle is at most 12in. The length of each of the two congruent sides is 5in . What are possible lengths of the remaining side? A.s greater than or equal to 5 but

6. ## Global 1

Sumerians worship their gods from the ziggurat the largest building in the city ancient Egyptians built temples to worship their gods and pyramids as homes for their God-kings how did the ancient Hebrews maintain their religion as they traveled from place

7. ## Geometry

Find the base and height of the parallelogram if the area is 1395 square units.

8. ## Chemistry 12

15. The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 10-14 M b. 5 x 10-14 M c. 5 x 10-7 M d. 2 x 10-1 M 16. Aqueous solutions of strong acids and strong bases: a. are good electricity conductors b. make litmus paper become

9. ## calc

A kite 80 feet above the ground moves horizontally at a speed of 8 ft/sec. At what rate is the angle between the string and the horizontal decreasing when 100 ft of string have been let out?

10. ## Math

You drop the rubber ball from height h it bounces back to 60% of its original height. Write an equation you can use to find the height h?

11. ## chemistry

Predict how many electrons will most likely be gained or lost by each of the following elements. (a) Se Will it gain or lose electrons? gain lose number of electrons (b) Cl Will it gain or lose electrons? gain lose number of electrons (c) Al Will it gain

12. ## language arts

which sentence gives the main idea of the selection? sentence 1. sentence 2. sentence 3. sentence 4. (language arts 7th grade. unit 3 lesson 1. introducing the big question

13. ## physics

Four point charges are located at the corners of a square with sides of length a. Two of the charges are +q, and two are -q. Find the magnitude and direction of the net electric force exerted on a charge +Q, located at the center of the square, for each of

14. ## English: Shakespeare-Othello

i need help please. idont understand this question. as he enter desdemona's bedchamber in order to kill her, othello mutters: it is the cause, it is the cause, my soul. what is he talking about? in what way might he be rationalizing Desdemona's murder?

15. ## chemistry

Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and relative abundance of 69.17%. Use the atomic weight of copper to determine the mass of the other copper isotope.

16. ## history

I need help Concerning the land bridge theory, which of the following statements are true? Select all that apply. A. It is a Native American theory. B. It is a scientific theory. C. It tells the story of Coyote, the trickster. D. It offers an explanation

17. ## Math

What number multiplied by the IQR (22, 34) equals the difference between the medians (12) of the two sets?

18. ## College Algebra

Hi there. My professor gave my class the practice problems for our final exam. I am a little stumped on a few of them and just need someone to help jog my memory. If you have the time, could you show the steps so I can see where I went wrong and practice

19. ## Language Arts

In a paragraph, compare and contrast any two of the following forms of poetry: Concrete Haiku Limerick Your essay should include a specific description of each of the two forms you choose. Explain how the two forms are alike and how they are different. I

20. ## Geometry

Greg made two similar glass display boxes shaped like triangular prisms. The length of the sides of the base of the first display box is 5 feet, and the length of the sides of the base of the second display box is 10 feet. If the volume of the first

21. ## chemistry

Silver has two naturally occurring isotopes (Ag-107 and Ag-109). (a) Use the periodic table to find the atomic mass of silver. (b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109? (c) If the mass of Ag-107 is 106.905,

22. ## chemistry

consider the reaction in which 410 grams of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement reaction. 1-how many grams of lithium are required? 2- how many grams of each product can be produced?

23. ## Algebra 1

soy bean meal is 12% protein; cornmeal is 6% protein. how many pounds of each should be mixed together in order to get 240 lb mixture that is 8%? how many pounds of the cornmeal should be in the mixture?____ how many pounds of the soybean meal should be in

24. ## Algebra 1

a student makes a \$10.25 purchase at the bookstore with \$20 bill. The store has no bills and gives the change in quarters and fifty -cent pieces. There are 30 coings in all. How many of each kind are there? how many quarters are there in the change? ___

25. ## chemistry 12

what is the chemical formula for the reaction between lead acetate and potassium iodide? please show both reactants and products. :)

26. ## Science

What is an example of a stable system how were you able to determine whether or not the system is stable? Would a sea saw be a stable system because the output is under control and it returns back

27. ## math

find the difference of an elevation of 30 feet below sea level and an elevation of 118 feet above sea level ans.. -30 - 118 = -148

28. ## SOCIAL STUDIES

WHICH OF THE FOLLLOWING PRIMARILY ACCOUNTS FOR THE SPIKE IN CUBAN IMMIGRATIONS IN THE EARLY 60 A-ONGOING CIVIL WAR IN CUBA B-CHANGES IN US IMMIGRATION LAWS C-COMMUNIST TAKEOVER OF THE CUBAN GOVERMENT D-RAPID GROWTH IN CUBAN WEALTH AND MOBILITY LAST

29. ## trig

If a ship leaves port at 9:00 a.m. and sails due south for 3 hours at 14 knots, then turns N 60° E for another 2 hours, how far from port is the ship?

30. ## science

why does the sun appear to move westward across the sky during the day? a) because earth rotates to the east b) because earth rotates to the west c) because the sun moves in a westerly direction d) because of the way you are looking into the sky

31. ## LA

Which of persuasive technique is used in the following pharse from the selection? Aren't actors supposed to act,and aren't directors supposed to direct? A appeal to authority B appeal to reason C reoetition D rhetorical question

32. ## math

of the 200 eighth-graders,70 are going on the class field trip.what percent of the eighth grade is going on the field trip A 35% B 40% C 65% d 70% i can't find the answer?

33. ## Physics

A boat is to be used to cross a river of width w that is flowing with a speed v. The boat travels with a constant speed 2v relative to water. At what angle should the boat be directed in order to arrive at a point directly across from its starting point?

34. ## VOCAB

Which two words have nearly the same meaning? seethe quench bewilder stifle answer: bewilder; stifle

35. ## vocab

select 2 word that are most nearly opposite in meaning 1. a. humdrum b. leisurely c. grueling d. miscellaneous ans b & c 2. a. hanker b. grovel c. hurtle d. patronize ans. b & c

36. ## VOCABULARY

1. Barren is to produce as a. inhumane is to abuse b. timid is to fear c poised is to enjoy d ignorant is to know Ans d 2. resume is to career as a. ruce is to war b. speaker is to oration c. synopsis is to plot d. paragraph is to sentence Ans b 3. scurry

37. ## vocabulary

The editor's comments about the novel's "____" narrative ____ the writer. a. gruesome.. marred b. notable... frustrated c. unscathed.. inflated d. stodgy... disheartened Ans D

38. ## vocabulary

The editor's comments about the novel's "____" narrative ____ the writer. a. gruesome.. marred b. notable... frustrated c. unscathed.. inflated d. stodgy... disheartened Ans B With her ___ complexion and ____ dress, the actress resembled the ghost of a

39. ## vocab

I was (hardy,indisposed) to accept the halfhearted invitation that reached me only a day before the party ANS - indisposed

40. ## lang arts

1. Nearly 150 years later, a talented ballet dancer appeared in the same city. ANS: Part= talented & ballet, same 3. Nevertheless, she joined into the famed Imperial School of Ballet in St. Petersburt ANS: Part= famed 4. Anna's teachers were famous

41. ## language arts

indicate the Predicate Adjective & Participle of ea sentence: 1. Nearly 150 years later, a talented ballet dancer appeared in the same city. ANS: Part= talented, PA =same 2. Anna Pavlova's family was poor. ANS: PA = poor 3. Nevertheless, she joined into

42. ## physics

1. A light ray strikes a mirror at an angle of 42° from the surface of the mirror. What angle does the reflected ray make with the normal Ans. 42° 2. A ray of light hits a mirror at 27° from the normal. What is the angle between the reflected ray and

43. ## math

A shipment of tv sets, some weighing 30kg each and the others weighing 50kg each, has a total weight of 880kg. If there are 20 tv sets all together how many weigh 50 kg?

44. ## SCIENCE NEED HELP

A plane travels from California to New York. The plane travels about 5000 km in 5 hours. What is the plane's velocity? (Give directions as North, South, East, or West.)

45. ## calculus

Find an expression for the function f(x) whose graph is given by the top half of the circle(x-3)^2 + y^2 = 121. f(x) = ????

46. ## Geometry

Find the radius and diameter of the base of a cylinder if the surface area is and the height is 17.

47. ## Geometry

Determine whether each statement is always, sometimes, or never true. Two cones are similar. A pyramid is similar to a square. Two spheres with the same radius are congruent. Non-similar solids have different volumes.

48. ## Geometry

How do you find the base and height of the parallelogram if the area is 180 square units?

49. ## statistics

Question 1 A school psychologist reports that the mean number of hours the students at this school sleep each night is 8 hours. The students believe the mean is not 8 hours. To find an estimate of the true mean, they select a random sample of 15 students

50. ## chemistry

Silicon has three naturally occurring isotopes: Si-28 with mass 27.9769 amu and a natural abundance of 92.21%, Si-29 with mass 28.9765 amu and a natural abundance of 4.69%, and Si-30 with mass 29.9737 amu and a natural abundance of 3.10%. Calculate the

51. ## Confidentiality of Health Information

When should the patient be notified of purging and archaic or inaccurate information? I think it would be Procedures for purging the computerized data base of archaic or inaccurate data should be established and the patient and physician should be notified

52. ## college Chemistry

Warm objects emit electromagnetic radiation in the infra-red region. Heat lamps employ this principle to generate infra-red radiation. Water absorbs infra-red radiation with wavelengths near 2.80um. Suppose this radiation is absorbed by the water and

53. ## Alegebra 1

How do I figure this out? The fax mailer brought a fax mcahine for \$600. The fax machine depreciates at a rate of \$20 a month. (a) find a function F that can be used to determine the value of the fax machine t months after purchase complete the model

54. ## Algebra 1

in 1920, the record for a certain race was 45.8 sec. In 1980, it was 44.6 sec. Let R(t)=the record in the race and t=the number of years since 1920. find the linear function that fits the data use the function (a) to predict the record in 2003 and in 2006

55. ## Algebra

Evaluate the expression x to the 4th power-2x to the 3rd power+5x squared+10x+12 for value of x=2 52

56. ## Science: Chemistry

Can the Law of Conservation of Mass be applied to a chemical reaction in which a gas is produced? Yes. THe gas has mass.

57. ## Math

Determine which ordered pair is a solution of y = x^2–2. (5, 21), (–5, 24), (–1, –1), (–2, 6) I don't see a correct answer

58. ## Algebra

what is the solution to -33+m=10 A. m = -43 B. M = -23 C. M= 43 D. M = 23

59. ## Math

Which of these statements are true about area? A. A=S+S+S+S. B. A=L+W. C. A= L+W×S. D. A=L×W

60. ## Math

True or false? Perimeter is the sjm of all sides, while area is the number of squares needed to cover a surface.

61. ## Social Studies

Explain why spices were valuable to Europeans. Why were spices so expensive in Europe? How did Marco Polo's journey serve as an inspiration for further European exploration? According to the author, how did the search for the Spice Islands change history?

62. ## freshman success

1. Highschool credit is a. when a teacher offers extra points for additional optional work b. a unit awarded for passing courses c. when you earn a grade by taking a test instead of going through the coarse. d. when you replace a poor grade on a quiz or

63. ## Physics

A rocket is fired vertically upward. At the instant it reaches an altitude of 2300 m and a speed of 279 m/s, it explodes into three equal fragments. One fragment continues to move upward with a speed of 224 m/s following the explosion. The second fragment

64. ## history help

How did the Asian Exclusion Act of 1924 foreshadow policies toward Japanese Americans during World War II? need help please

65. ## history

I need help How do traditional stories connect Washington’s Native Americans to the land? A. They offer evidence that the Native American tribes of Washington originated in the stars. B. They provide genetic evidence that the Native American tribes

66. ## history

I need help please 1.Why did Native American tribes want to bury the remains of Kennewick Man rather than allow them to be studied by scientists? A. Because they believe he is an ancestor, they want to give him a proper burial. B. Because they believe he

67. ## Science

The mass of ball A is 10 kilograms and the mass of ball B is 5 kilograms. If the initial velocity is set to 3 meters per second for each ball, what is the final velocity of ball B if the final velocity of ball A is 2 meters per second? Use the elastic

68. ## Language

I need to write an autobiographical essay about something that changed me in a significant way. I just need some ideas. I have no idea what to write about.

69. ## algebra

evaluate -5g - 6 for g = -2

70. ## Math

Use the data given below to answer the following questions 68, 63, 67, 66, 65, 87, 69, 61, 86, 82, 28 A. What is the outlier of the data? Explain WHY you consider this number the outlier. B. Calculate the mean of the given data set. You must show your work

71. ## Algebra

if n houses have k windows, write an expression to represent the number of windows for n + 1 houses nk + k or k(n+1) ie. (10 houses - 4 windows) (10 x 4 )+ 4 = 44 windows

72. ## algebra

write an equation for: the number of triangles is 1/3 the number of sides Y = 1/3X

73. ## Math

if n houses have k windows, write an expression to represent the number of windows for n + 1 houses n+ 1 = 4+4k

74. ## geometry

I really dont get why there are two NQ and 2 CA. can someone explain 1) Find the value of the variable and MN if N is between M and Q. Round to the nearest hundredth if necessary. MQ = 5m + 1, NQ = 4m, NQ = 12 Select one: a. m = 4, MN = 5 b. m = 3, MN = 4

75. ## science

In what ways might individuals of the same species compete with each other if they are (a) herbivores (b) carnivores (c) producers

76. ## Social Studies

Select a new deal program that helped improve the lives of South Carolinians. explain what the program improved and how it helped the people of South Carolina.

77. ## Science

An immense body of air characterized by similar properties at any given altitude is known as a(n) _____.

78. ## GEOMETRY PLZ HELP ASAP

A plane is located at C on the diagram. There are two towers located at A and B. The distance between the towers is 7,600 feet, and the angles of elevation are given. a. Find BC, the distance from Tower 2 to the plane, to the nearest foot. b. Find CD, the

80. ## math

will someone explain to me how to solve this expression. 3x – 4 + x = 32 pls help. I am not good at this

81. ## World History

1. Which social group is made up of warriors and rulers A vaisyas B sudras C kshatrias D Brahmins 2.The vaisyas are A common people B priests C unskilled laborers D untouchables

82. ## Science

What is the main difference between mechanical and electromagnet waves? a)Mechanical waves involve transfer of energy; electromagnet waves do not. b)Mechanical waves require a medium to travel in; electromagnet waves do not. c)Mechanical waves have

83. ## Social studies

Lesson 4: Jefferson’s Presidency social Studies 8 A unit 4: The Early Repubilc Missed a lot of school because I was sick and trying to catch up really would appreciate if I got some help

84. ## Honors Algebra

I have a test coming up on CONNECTIONS ACADEMY SOLVING INEQUALITIES...can anyone help me i'm so confused.

85. ## s.s

what difficulties did the U.S faced in preparing for war with Britain? select all that apply > France backed out after offering to help the U.S >Britain had a much larger navy then the U.S*** > Enslaved African Americans refused to help fight > The U.S had

86. ## english

1. Which of the following are elements of a memoir? (2 points) It is a fictional story. It is a story from the author's life. It tells all of the important events of the author's life. It recalls a specific memory of the author's life. Choose one answer

87. ## S.S

what concern about the Constitution is Patrick Henry expressing? its ether A or C A. that a president would need to be ambitious to be successful in office C. that a president has been given too much power

88. ## Geometry Probability

Favorite Summer Activity for 50 Children Reading Sports Swimming TOTAL Boys 2 20 8 30 Girls 4 7 9 20 TOTAL 6 27 17 50 P(Boy if favorite activity is swimming) 0.26 P(Girl if favorite activity is sports) 0.45 P(Girl if favorite activity is reading) 0.20

89. ## Maths

If x:y=9/2:16/3 AND y:z=25/4:17/2, find x:y:z Question of proportional parts please Answer

90. ## math

Abe creates a scatter plot showing students’ ages on the x-axis and their heights on the y axis. Which type of trend will the scatter plot show?

91. ## social studies

1-WHICH OF THE FOLLOWING WAS AN OUTCOME OF THE BERLIN AIRLIFT A-STALIN TOOK DOWN THE BERLIN WALL B-MORE FORMER COMMUNIST NATIONS JOINED NATO C-THE 3 WEST CONTROLLED ZONES MERGED INTO 1 D-THE WEST GAVE MONEY TO THE EAST TO FIGHT COMMUNISM I THINK ITS C.CAN

92. ## ss

which of the following statements best explains the scandals associated with the Harding administration? a Harding took bribes to place his friends in his cabinet b Harding's cabinet used their appointment as a way to get rich any way they could c Harding

93. ## language arts

Since dream is an irregular verb then the sentence: She was dreaming of a swimming pool is Present Participle not Past Participle - correct?

94. ## language arts

Indicate if past or present participle They have planned their trip carefully. - Past Mira's brother has formed a list of supplies. - Past She has decided on an isolated island. - Past Mira's mother has selected the destination. - Past She was dreaming of

95. ## History

Which one of the following would likely be the action of one who supports the 18th Amendment? A organizing and hosting a rally for the Women’s Temperance Union B setting up a system of distribution for bootlegged alcohol C appealing to Congress that

96. ## physics

The flywheel of a steam engine runs with a constant angular speed of 350 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 1.0 h. A) At the instant the flywheel is turning at 75 rev/min, what is the tangential component of

97. ## language arts

Linking verb or action verb Different types of teeth serve different purposes ans. "serve" = action verb Webbed feet make dogs good swimmers ans. "make" = action verb Small details look fuzzy to dogs ans. "look" = action verb

98. ## language arts

Action Verb or Linking Verb Many dogs use their tails for communication ans. "use" is the - Action Verb A dog's tail expresses playfulness of fear. ans. "expresses" - Linking Verb Other dogs have fluffy or curly tails ans - "have" - Linking verb Dogs seem

99. ## Civics

Which of the following is the best example of the idea of "separation of powers" in the American constitutional system? A.The president appoints judges, but legislators get elected.** B. The process for creating laws involves Congress and the president.**