# Questions Asked onMay 31, 2015

1. ## Math

Suppose you have a mean standardized score of 1500 points with a standard deviation of 150 points. This data is normally distributed. What is the z-score of 1600 points? 0.75 0.5 0.67 0.32

2. ## geometry

One endpoint of a line segment is (8, −1). The point (5, −2) is one-third of the way from that endpoint to the other endpoint. Find the other endpoint.

3. ## english ASAP

which excerpt from the play best supports the answer to the previous question? a)"more than eighteen hundred... a tremendous family to provide for!" b)"these children are his? on his meager earning! what foolishness!" c) Do you mean crochet, spirit? do u

4. ## Chemistry

NCl3, SiCl4, AsCl3, SCl2, PCl3 order them in terms of increasing bond polarity NCl3

5. ## geometry

Name a point that is between 50 and 60 units away from (7,-2) and state the distance between the two points.

6. ## algebra--1 question

The width, w, of a rectangular playground is x + 3. The area of the garden is x^3 - 7x + 6. What is an expression for the length of the playground? a.) x^2 - 3x + 2 b.) x^2 + 3x - 2 c.) x^2 + 3x + 2 d.) x^2 - 3x - 2 Is it b???

7. ## Econ

You are the manager of a firm that receives revenues of \$40,000 per year from product X and \$90,000 per year from product Y. The own price elasticity of demand for product X is -1.5, and the cross-price elasticity of demand between product Y and X is -1.8.

8. ## Chemistry

My Question is: Commercial vinegar usually has a concentration of 5%, per volume. Calculate the [H3O+], if the density of acetic acid is 1.051 g/mL. What I did was: mass = V * density mass = 0.05 * 1.051 = 0.05 g moles = grams/molar mass = 0.05/60.05 = 8.3

9. ## Algebra

A plane has a cruising speed of 100 miles per hour when there is no wind. At this speed, the plane flew 600 miles with the wind in the same amount of time it flew 400 miles against the wind. Find the speed of the wind.

10. ## English

Which sentence should be edited to eliminate its cliché? A. The texture of the burlap was a cross between woven straw and a three-day beard. B. The family was immensely relieved when Great-Aunt Martha's condition progressed from "critical" to "it looks

11. ## Math

Hello! Could someone please take a look at the problem below and let me know if I made mistakes in simplifying the given equation? I'm quite certain that I did make a mistake somewhere because the original equation and its simplified form give different

12. ## DISCRETE MATH

We have a relation R on Z+ defined as follows: mRn if and only if m|n. a. Explain why the relation R is not a function. b. Determine the set A = {m ∈ Z|mR52} and give its cardinality |A|. c. Determine the set B = {n ∈ Z|52Rn}. d. Indicate whether A ∩

13. ## Physics

The mass of a stone is 15.0g when completely immersed in water and 10.0 when completely immersed in a liquid of relative density 2.0 what is the mass of the stone in air.

14. ## Math (Statistics)

Without calculating values of z, tell which of these sample means will have the most extreme standardized score and which will have the least extreme standardized score. 40, 30, 25, 20.

15. ## History

1.What was one thing President Nixon did in an attempt to improve relations with the Soviet Union? A. established relations with China

16. ## math

What number is the sum of 8 numbers whose average is 13

17. ## Math

Christine's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Christine \$5.85 per pound, and type B coffee costs \$4.40 per pound. This month, Christine made 174 pounds of the blend, for a total cost of \$906.25. How

18. ## Math

The time required to finish a test in normally distributed with a mean of 40 minutes and a standard deviation of 8 minutes. What is the probability that a student chosen at random will finish the test between 24 and 48 minutes? 82% 2% 84% 16%

19. ## algebra

Jason recently purchased a new truck for \$34,750. The value of the truck decreases by 12% each year. how much could he sell the truck for in 7 years?(what would the value be?)

20. ## Physics

A 5 ohm resistor a 15 ohm resistor and a unknown resistor, r, are connected as shown with a 15 volt source. The ammeter reads a current of 0.5 ampere. I got .1V by using ohm's law but I'm not sure if it's right

21. ## math

find two irrational numbers lying between root of 2 and root of 3

22. ## chemistry

is the formation of an aqueous solution with water, a physical or chemical property? physical..... because the substance doesn't change.....

23. ## Algebra 1

A right triangle has 1 leg that is 2" longer than the other leg. the length of the hypotenuse is sqrt 130" Find lengths of legs 0=2x^+4x-126

24. ## Digital Circuits

which is the primary purpose of a resistor in series with a led being driven by a flip-flop a. Limit voltage b. Limit current c. Limit speed d. Limit power

25. ## chemistry

What mass of copper will be deposited by a current of 7.89?

26. ## English

In which sentence does the italicized word have a negative connotation? A. Jack, who is the most outspoken member of the group, led the opposition to the new rule. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Matthew was a

27. ## english

what is the prepositional phrase in this sentence the bird flew directly over our heads. a)flew b)over C)heads d)our is b right??? @ms.sue

28. ## Chemistry

Tap water that contains Cl− at a concentration of 50 ppm is used to prepare a 0.100 mol/L AgNO3 solution. Does a precipitate form? How much? I don't know how to find out how much precipitate will form but a precipitate will form based on my calculations

29. ## Logs

log (sqrt4(x^16 / y^4)) What is the value of the expression when logx=8 and logy=1? My work: x=10^8 y=10 I tried to plug these in but my calculator but it said "overflow." Is there an easier way to do this?

30. ## Math

you have 1/2 of a brownie. You eat 3/4 of what you have , what fraction of the brownie did you eat?

31. ## geometry

ABCD it's an isosceles trapazoid With A(10,-1),B(8,3), and C(-1,3).find the coordinates of D

32. ## physics

An inverted image is magnified by 2 when object is placed 22 cm in front of a concave mirror. Determine the image distance and focal length of the mirror.

33. ## Science

Which of the following is not a characteristic of natural selection? A. More offspring are born than will survive to reproduce. B. Mutations appear randomly. C. Breeding pairs are chosen by humans. D. Organisms that are better adapted are more likely to

34. ## Chemistry

20.00mL of a 1.100x 10^-4 mol/L Pb(NO3)2 is mixed with 80.00mL of 4.45010^-2 mol/L CaI2. Will a precipitate form? for the Ksp i got 2.7x10^-8 and im not sure if its right or not this is what i did [Pb2+] = (1.1x10^-4 mol/L x 0.02L)/(0.02L + 0.08L) =

35. ## chemistry

if 15.95 g dissolves in 100ml of water what will be the solubility in g/ml expressed to the proper number of significant figures?/ 15.95/100 =.0595

36. ## Maths

Colin paid \$4 for 4 buns and 4 cakes. 3 buns cost as many as 2 cakes.What was the total cost of 5 buns and 5 cakes? (My teacher gave this to my class as a brainteaser. I'm Australian and I'm nowhere near the smartest in my class. My homework is due in 6

37. ## Socials

How did Stalin suppress his people's individuality and control their personal and economic lives? I am having trouble researching his methods of control and how his people's lives were affected. I know he initiated a great massacre to terminate anyone who

39. ## physics

If the relative density of a metal is 19. What will be the mass of 20cm of the metal when immersed in water RD=19 Mass=20cm³

40. ## alegra2

the number of wolf in yosemite park has increased at an annual rate of 10% since 2005 and there were 1.35 thousand at that time. a. write a function to model the number of wolves after t years. b. approximately how many years are now living in the

41. ## Calculus

A(x) = x^2 + 128/x find A'(x) and A"(x)

42. ## Maths literacy,geograph,tourism,consumer studies

I choose that subject what a good job im i going to get

43. ## chemistry

what part of the meniscus must be read to accurately record the volume of a liquid in a graduated cylinder??? the lowest of the bubble?

44. ## math

find a and b for the following:- 1).(root of 2+root of 3 / 3 root of 2 - 2 root of 3) = a+b root of 6 2). {(root of 5 - 2/root of 5+2)-(root of 5+2/root of 5 - 2)} = a+b root of 5

45. ## Algebra II

Can someone please help me with PEMDAS? 4² + [15 ÷ 9 - 3(2)] if you do parentheses first then 15 ÷ 9 doesn't make sense. So I did, 16 + 15 ÷ 3 = 21 Thank you!!

46. ## Economics

What is the South African government providing and to whom?

47. ## Economics

What are costs and consequences of providing the subsidies and welfare?

48. ## chemistry

how many significant figures are in the measurement 0.002 ml? 2??

49. ## English

African slaughter rituals should be allowed in surburbs.why?

50. ## Life Orientation

Core functions of the media

52. ## chem

Enter the symbol of the element which would have 2 electrons and -1 charge.

53. ## mechanics of dynamic

A thief escapes and boarded on a truck and traveled at a constant speed of 55kph. Two hours later after the truck left , a policeman pursued the truck at a constant speed of 80kph. How long it did take the policeman to catch up the thief ?

54. ## nuclear chemistry

determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

55. ## nuclear chemistry

determine the nuclear binding energy for Ir-187. Atomic mass of Ir-187=187.958830 g/mol (per nucleon) dE=dmc(^2) mass of proton= 1.00728 amu mass of neutron=1.00866 amu

56. ## precal

convert from rectangular coordinates to polar coordinates x=y

57. ## nuclear chemistry

Determine the nuclear binding energy for Pd-101. atomic mass of Pd-101=100.908287 g/mol.

58. ## Design & Technology

What are the social and moral issues with puppets for children? (Pro's and Con's)

59. ## life orientation

what are five interview guestion must be used to evaluate the understanding of service delivery protests by the learners in schools

60. ## math

What is the solution to the following equation? 3x(x-4)+5=12

61. ## Algebra II

Can you please let me know if I solved the following equation correctly? 1 + 5(n-8) = 2 - (n +5) 1 + 5n - 40 = 2 - n - 5 -39 + 5n = -3 - n 6n = 36 n = 6 Thank you very much!

62. ## Civics ASAP PLZ =:)

What is one advantage the United States has over Canada for maintaining a diversified economy? The U.S. has a greater gold resource The U.S. has a greater labor resource The U.S. has a greater per capita of fresh water The U.S. has a greater land

63. ## Agricultural Science,Business Studies,History,Life Orientation.

I do the following subjects:Agricultural Science,Business Studies,History,Life Orientation and Two Languages.And Im wondering What kind of A Job can I get and which college/university can Go to? .. Please Help

64. ## Life Orientation

Define service delivery protests

65. ## pennfoster

Mary Palm's checking account had a starting balance of \$785.63. She wrote a check for \$57.00 for groceries and a check for \$125.00 for a car payment. Yesterday she deposited \$57.25 in her checking account. What is Mary's current balance

67. ## English

Which of the following is not a type of sentence? A. Compound-complex B. Simple C. Complex D. Simple-compound My answer is D

68. ## Physics

If the relative density of a metal is 19 what will be the mass of the metal when immersed in water.

69. ## Physics

If the relative density of a metal is 19 what will be the mass of 20cm^3 of the metal when immersed in water.

70. ## English

Which of the following sentences shows an example of parallel verbs? A. Once the game was over, Jim had to run home and then eat his dinner. B. Once the game was over, Jim had to run home and dinner was ready. C. Once the game was over, Jim had to be

71. ## English

Which of the following sentences contains a redundancy? A. Chris had trouble working up even mild enthusiasm for Mike's plan. B. Steve admired the partially completed stadium. C. Emily's sister gave birth to a pair of twins. D. At no time did Tony indicate

72. ## English

In which sentence does the italicized word have a negative connotation? A. Jack, who is the most outspoken member of the group, led the opposition to the new rule. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Matthew was a

73. ## English

Which of the following sentences contains a redundancy? A. Chris had trouble working up even mild enthusiasm for Mike's plan. B. Steve admired the partially completed stadium. C. Emily's sister gave birth to a pair of twins. D. At no time did Tony indicate

74. ## English

Which of the following is a simple sentence? A. Karen and David arrived at the airport at 3:35 P.M. and took a taxi to their hotel. B. When I realized I was too late, I called David's cell phone and made arrangements to meet them in town. C. I got to the

75. ## English

Which of the following sentences uses concrete language? A. Jerry saw that the glass was really dirty. B. I met Cathy at a store on a street near the bridge. C. Danny's Labrador retriever eagerly chases tennis balls. D. When I saw Susan, she was reading a

76. ## economic s

are there any welfare or subsidy payments that should be reviewed

77. ## Civics ASAP PLZ =:)

Fiscal conservatism is the belief that government should not have large debts, and that government programs should not be paid for on borrowed money. How could both Democrats and Republicans be considered fiscally conservative? Republicans - spending money

78. ## Math

What is the maximum volume of a cone that would fit in the box with h=3cm, l=6cm, and w=3cm? how do i do this step by step

79. ## english

what is the prepositional phrase in the sentence? the family drove to the store. A)the family drove b)drove to the store c)the family d) to the store

80. ## programming logic and design

need help on creating a logic for a program that accepts input values for the projected cost of a vacation and the number of months until vacation

81. ## Trigonometry

In a parking garage, there are 20 feet between each level. Each ramp to a level is 130 feet long. Find the measure of the angle of elevation.

82. ## Math

A hot air balloon with a height of 120m is directly over a bridge that is 313m from the balloon's landing point. The navigator finds the angle of depression to the landing point. Find the angle of depression.

83. ## English

what purpose for reading do the stage directions suggest to readers? to learn about a subject to be inspired to be entertained to gain understanding i think its the last one, or the first, pls check

85. ## english

Ebenezer Scrooge's character changes between act 1 and 2, describe the change in scrooge's character (not multiple choice)

86. ## DISCRETE MATH

Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. Thanks

87. ## DISCRETE MATH

Let Z 5 be the relation of congruence modulo5. If 1 ≤ m, n ≤ 5,we define the product of two classes as [m][n] = [mn]. Explain why [3][4] = [2]. I know 3 x 4 = 12. 5 mod 12 = 2. but i don't know how to explain it. Help with the explanation please.

88. ## Geography

Followed by the last question, How may the topic affect the lives of Canadians? I know one reason is that as people age, there will be less people receiving medical attention. What else can I add to make this sentence better?

89. ## Math

This is a question regarding quadratic equations. I think I have to use the quadratic formula but I'm not sure and because the question provides the base I think I'm wrong. Here is the question|: During a hurricane, parabolic waves on the ocean can exceed

90. ## Language arts

What is one conflict that represents a cause and effect relationship in the story dragon wings.

91. ## Sequences

Terms 1 through 5 of a sequence are shown below. 8/81 , 4/27 , 2/9 , 1/3 , 1/2 What is the 10th term in the sequence? I have no clue. I tried having common denominator of 81, but that just confused me more. I would try to show more work, but I really don't

92. ## LA

which of the following words best describes the overall mood at the novel? A)shocked but resolved b)angered and desperate c)traumatized but hopeful d)rejuvenated and restored** am i right?

93. ## Chemistry

What is the difference between a square pyramidal and a trigonal bipyramidal? I know that the square has a square base and that trigonal bipyramidals have 5 atoms bonded to it but when I have questions that have 5 atoms bonded they end up being squares