# Questions Asked onJune 1, 2013

1. ## STATISTIC

IT IS IMPOSSIBLE TO GET 7 KINGS WHEN SELECTIONG CARDS FROM A SHUFFLED DECK. EXPRESS THE INDICATED DEGREE OF LIKELIHOOD AS A PROBABILITY VALUE BETWEEN 0 AND 1 INCLUSIVE.

2. ## chemistry

1)What is the correct structure of AsH3???? 2)Name the type of hybrid orbitals of central form. 3) Name the molecular geometry of compound. 4)State weather it is polar or non polar. 5) Estimate H-As-h bond angle in degree. 6) what is the dominant form of

3. ## english

the Trout" and "The Wager," Below is a chart which shows the continuum from Pessimistic to Optimistic and on which you can "gauge" where a character fits at each point in the story. For each of the stories, "The Trout" and "The Wager," decide where you

4. ## pre calculus

Choose the point on the terminal side of 135°

5. ## earth science

If a sample contains 50g of carbon14 and 50g nitrogen14 how many half lives has it undergone?

6. ## arithmetic

Assume you roll a fair dice twice. Two rolls are independent and identically distributed, with probability of rolling a particular number being 1/6. So, for instance, the probability of rolling 5 and then 2 is P(5,2) = P(5) ⋅ P(2) = 1/6 ⋅ 1/6 = 1/36

7. ## statistics

A realty company has 100 homes listed for sale. Some of these homes have fireplaces, some have garages, and some have neither. A breakdown is provided in the two-way classification table below. Fireplace No Fireplace Garage 50 30 No Garage 10 10 what is

8. ## Math

What is the percent markup based on cost for the shirts in the previous question? (Round percent to the nearest tenth.) I got .72% What is the percent markup based on selling price for the Western Wear shirts? (Round percent to the nearest tenth.)

9. ## Statistics

women's heights are normally distributed with a mean 63.1 in and standard deviation of 2.5. A social organization for tall people has a requirement that women must be at least 69in tall. What percentage of woman meet that requirement? The percentage of

10. ## Algebra

Suppose that an insurance agent offers you a policy that will provide you with a yearly income of \$40,000 in 30 years. What is the comparable salary today, assuming an inflation rate of 6% compounded annually? (Round your answer to the nearest cent.)

11. ## Statistics

Darned old Foofy! Foofy computes the x̅ (MEAN) from data that her professor says is a random sample from population Q. she correctly computes that this mean has a z-score of +41 on the sampling distribution for population Q. Foofy claims she has proven

Patients who have artificial hip-replacement surgery experience pain the first day after surgery. Typically, the pain is measured on a subjective scale using values of 1 to 5. Let x represent the random variable, the pain score as determined by the

14. ## chemistry

The skeletal structures of the two amino acids, glycine and lysine, are given below along with the values of the relevant acid dissociation constants (pKa). (a) For an aqueous solution of glycine alone, calculate the value of pH at which the ratio of the

15. ## Physics 1 College Level

A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2? Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one

16. ## World History

1)War over this country involved the United States during the 1960s and 1970s. in 1975 it fell under Communist control. I said South Vietnam 2)In the 1980's this nation was a world industrial leader as well as major competitor with U.S. I said China (

17. ## Physics 1 College Level

If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!

18. ## math

Epicure Market prepares fresh gourmet entrees each day. On Wednesday, 80 baked chicken dinners were made at a cost of \$3.50 each. A 10% spoilage rate is anticipated. At what price should the dinners be sold to achieve a 60% markup based on selling price?

19. ## Probability

An oil-drilling company knows that it costs \$25,000 to sink a test well. If oil is hit, the income for the drilling company will be \$375,000. If only natural gas is hit, the income will be \$130,000. If nothing is hit, there will be no income. If the

20. ## programming

You have the final sales figures for the four quarters in 2010 for Bennets Used Auto Sales, and you are to design a program that asks for the sales figures, computes the total sales for the year, and calculates and displays the average quarterly sales for

21. ## Physics

A crate of eggs is located in the middle of the flat bed of a pickup truck as the truck negotiates a curve in the flat road. The curve may be regarded as an arc of a circle of radius 37.9 m. If the coefficient of static friction between crate and truck is

22. ## math-probaility

Sal has a bag of hard candies: 3 are lemon and 2 are grape. He ate 2 of the candies while waiting for the bus, selecting them at random one after the another. What is the probability of at least one candy was lemon?

23. ## physics

Q.a cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below.what is the density of the wood(justify the answer) i.what mass of lead mass has to be placed on the top of the block of wood,so that it wi;;

24. ## physics

Q.A cube of wood 20cm on each side,floats in water so that 30% is above the surface of the water,and 70% is below. i.what is the density of the wood(justify the answer) ii.what mass of lead mass has to be placed on the top of the block of wood,so that it

25. ## stats

Test scores on a university admissions test are normally distributed, with a mean of 500 and a standard deviation of 100. 4 marks a. What is the probability that a randomly selected applicant scores between 425 and 575? 4 marks b. What is the probability

26. ## math

Verify that the function f(x)=x^3-6x^2+8x+4 satisfies the three hypotheses of Rolle's Theorem on the given interval [0,4]. Then find all numbers c that satisfy the conclusion of Rolle's Theorem

27. ## Tax Accounting

Mike purchases a heavy-duty truck (5-year class recovery property) for his delivery service on April 30, 2010. The truck is not considered a passenger automobile for purposes of the listed property and luxury automobile limitations. The truck has a

28. ## Maths

What is the least amount of fencing you would need in order to enclose an area of 72 square feet?

29. ## physics

A car covers a distance of x,while moving at 54km/1 in 15sec.Find the value of x

30. ## Math

Proma earned \$82 last week. She earned \$6 each hour and received a bonus of \$10 for exceptional work. Which equation can be used to find h, the number of hours Proma worked last week? A. 6h+10=82 B. 6h-10=82 C. 10h+6=82 D. 10h-6=82 A? I used to think it

31. ## Science

A sample of gas under a pressure of 622 kPa has a volume of 233 mL. The pressure is increased to 988 kPa, while the temperature remains constant. What volume will the gas occupy at this pressure?

32. ## Math

Can someone answer a question similar to a and b so I can use as an example. Consider the following binomial random variables. (a) The number of tails seen in 47 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii)

33. ## arithmetic

Assume you roll a fair dice twice. Two rolls are independent and identically distributed, with probability of rolling a particular number being 1/6. So, for instance, the probability of rolling 5 and then 2 is P(5,2) = P(5) ⋅ P(2) = 1/6 ⋅ 1/6 = 1/36

34. ## Statistics

Step 2 - Transform the sample mean into a z-score (p. 133) x̅ = 26, N = 30, σ_X=6 Z = (X- µ)/(σ_X/√N) = (24- 26)/(6/5.4772) = (-2)/(1.0955) = 1.8257 Z = - 1.83 The z-score table notes that the area between the mean of 26 and the z-score of 1.83 =

35. ## check math

If boys ad girls are equally likely to be born, what is the probability that in a randomly selected family of eight children, there will be at least one a boy. Answer 0.984

36. ## chemistry

The N-N bond energy is difficult to measure. Given the values of 190 kJ/mol for the N-Cl bond energy and 240 kJ/mol for the Cl-Cl bond energy, determine the maximum de Broglie wavelength of an electron capable of breaking the N-N bond. Express your answer

37. ## chemistry

The N-N bond energy is difficult to measure. Given the values of 190 kJ/mol for the N-Cl bond energy and 240 kJ/mol for the Cl-Cl bond energy, determine the maximum de Broglie wavelength of an electron capable of breaking the N-N bond. Express your answer

38. ## english

Fill in each of the boxes below with information about your short story using from three to five sentences for each box. Click here to download a copy of this chart in rich text format. Describe the appearance of your protagonist Describe the appearance of

39. ## to:writeacher

In response to a typo which I immediately corrected: Writeacher writes: "@allthehomework needs to stop answering questions since he/she often has to apologize or is not 100% sure of what he/she has written. =(" That was not very classy Writeacher. I see

40. ## chemisrty

a. At low temperatures, 1,1,2, trichloro ethane is not free to rotate about the carbon-carbon bond. It will be stuck in its lowest energy position. Is 1,1,2, trichloro ethane a chiral molecule when trapped in this position? 1,1,2, trichloro ethane is

41. ## heeeeeeeeeeeeelp math

Miles has 4 Lego people in his Lego town. A Lego person consists of exactly 1 set of legs, a torso, and a head. All of these body parts are distinct. Miles' son comes in and takes apart the Lego people. How many different sets of 4 Lego people can be

42. ## physics

Q.an aluminium can of mass 200gm contains 500gms of water at 50c.an ice cube of mass 50gms,initially at a temperature of -20c is thrown into the can of water. i.what is the final temperature onces the ice metls and comes into equilibrium? ii.now a 200gm

43. ## physics

When serving, a tennis ball is almost motionless when it is slammed by the racquet. A force sensor in an experimental tennis racquet measures a force of 80 N during the impact with a 0.058 kg tennis ball. The impact lasts for 0.04 seconds. If the ball was

44. ## chemistry

A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2

45. ## Binomial and Poisson distribution

A machine produces ribbon in which flaws occur randomly at an average rate of one flaw in 100m. Find the probability that there are 3 or more flaws in a randomly chosen 200m of ribbon. Find the length of ribbon such that the probability that it contains no

46. ## physics

The resultant of two forces,one is double in magnitude than the other,is perpendicular to smaller force.What is the angle between the two forces?

47. ## Algebra

A goldsmith has two gold alloys. The first alloy is 20% gold; the second alloy is 60% gold. How many grams of each should be mixed to produce 40 grams of an alloy that is 30% gold? amount of 20% gold_____g Amount of 60% gold_____g

48. ## chemistry calculation

I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 gr

49. ## heeelp tooough physics

A tunable capacitor (with variable capacitance) is charged by a U 0=12 V battery and then is connected in parallel to a R=3 Ω resistor. The capacitance C(t) of the capacitor is controlled so that the current in the circuit remains constant at all times.

50. ## SAT math

1. x>15-2x / -3 Solve the linear inequality. Write the solution in set builder notation. So, -3x>15-2x, x

x is a binomial random variable. (Give your answers correct to three decimal places.) (a) Calculate the probability of x for: n = 1, x = 0, p = 0.15 P(x) = Changed: Your submitted answer was incorrect. 0.15 x 0 = 0 . (b) Calculate the probability of x for:

52. ## chemistry

A pressure vessel contains a large volume of CO2 gas at 10 atm pressure. A membrane composed of a poly(ether ketone) polymer with thickness 100 microns and net effective area of 100 cm2 covers a small perforated port in the container. The solubility of CO2

53. ## Math

Joe weighs 30 lbs less than twice ken's weight. If ken gains 10 pounds then together they would weigh 250 pounds. How much does each of them weigh? let x be ken's weight. thanks

54. ## English

1. He is looking at the baby happily. 2. Happily, he is looking at the baby. 2-2. He is happily looking at the baby. 3. He looks around happily. 4. They are talking with each other happily. (Are they all grammatical? What is the difference between #1 and

You are shopping for an executive desk chair at The Furniture Gallery. You see two you like on sale. Chair A was originally \$119.99 now on sale for \$79.99 and Chair B was originally \$149.99 now on sale for \$89.99. Calculate the markdown percent of each

56. ## chemistry

When 5.00 g of barium hydroxide are added to 250.0 mL of 0.250 hydrochloric acid in a calorimeter, the temperature off the solution increases from 25.0 C to 28.0 C. Calculate the enthalpy ( in kJ per mole of water) given the density of the hydrochloric

57. ## chemistry

Consider the compound NOCl. In the lewis dot structure, which element should be the central atom? Choose from following. N,O,Cl,both N or O could be in middle, both N or Cl could be in the middle,both O or Cl could be in middle,or all the elements could be

58. ## life oreintation

Provide five ways in which you critically discuss how lifestyle disease/behaviour of hiv&aids impact on the teenagers

59. ## Math

Solve the following: 56 is ______% of 125 What number is 45% of 680? Solve the following: 315 is 126% of If a number increases from 47 to 70.5, what is the rate of increase?

60. ## programming

b. Write a well-commented C++ program that reads data from the input file employee.txt. Each input line consists of last name, first name, base salary, total sales, and number of years of service. Store the output in the file employees_payCheck.txt. Format

61. ## algebra

what is x squared z to the fifth power divided x x to the sixth power z to the fourth power

62. ## statistics

Measurement Scales Practice 1. Indicate the first letter (N, O, I, R) of the highest possible scale for each of the following measures, where N is lowest and R is highest: Measure Highest Scale a. Feet of snow Interval b. Brands of carbonated soft drinks

63. ## chemistry

The structure of graphite is shown below. What kind of hybridization exists for each carbon in the lattice? sp sp2 sp3 sp3d1 sp3d2 What kinds of bonds are present in this structure? hydrogen bonds hydrophobic interactions sigma sp sigma sp2 sigma sp3 sigma

64. ## Chemistry

At very low temperatures the carrier concentration in one of these materials appears to diminish very rapidly. Why is this? Please choose the option that BEST describes this phenomenon.

65. ## Math check my answer

What music plan is a better deal? site A: \$29 per month plus .80 cents per download site B: \$17 per month plus \$1.19 per download write an equation and show how many downloads make site A a better deal. My answer:: .80x + 29 > 1.19x + 17 after all my other

66. ## Physics

An airplane of a certain density and shape flies at a constant speed. To do so, it must fly with a certain velocity v0. If the size of the airplane is scaled up in length, width, and height by a factor of two, it can only fly above a new velocity v1. What

67. ## heeeeeeeeeelp math

Miles has 4 Lego people in his Lego town. A Lego person consists of exactly 1 set of legs, a torso, and a head. All of these body parts are distinct. Miles' son comes in and takes apart the Lego people. How many different sets of 4 Lego people can be

68. ## chemistry

What is the approximate ratio in conductivity of silicon doped with 37 ppm to silicon doped with 5 ppm

69. ## chemistry

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between

70. ## LIFE OREINTATION

Describe the lifestyle disease/behaviour of hiv/aids

71. ## chemistry

A comparison of density values obtained by X-ray diffraction reveals that the percentages of vacant sites in aluminum (Al) are 0.0700% at 923 K and 0.0090% at 757 K. Given this data, determine the number of vacant sites per cm3 at 550 K. Express your

72. ## Cultural Anthropology

Environmental determinism means: (Points : 1)

73. ## Music

23. If the fourth chord of a note is a seventh above the root, the chord is: a. a 7th chord b. a triad c. non-tertian d. a 4th chord Not sure 33. The inversion of triads can be written with roman numerals and a. letters b. small numbers c. percentage signs

74. ## physics

Vector C has a magnitude 25.8 m and is in the direction of the negative y axis. Vectors A and B are at angles α = 41.9° and β = 27.2° up from the x axis respectively. If the vector sum A B C = 0, what are the magnitudes of A and B?

75. ## physics

Vector C has a magnitude 25.8 m and is in the direction of the negative y axis. Vectors A and B are at angles α = 41.9° and β = 27.2° up from the x axis respectively. If the vector sum A B C = 0, what are the magnitudes of A and B?

76. ## physics

The specific heat capacity is 1800 J/Kg/K .Calculate the amount of energy liberated when 7kg of the liquid cools from 70 Degrees Celcius to 35 degrees celcius

77. ## SAT Math

Can I please get some help on these questions: 1. If , find the value of 2 square root of 17-x = 2x-10, find the value of x/4. 2. If absolute value of 3x+6 < 9, then which of the following is a possible value of x ? My answer choices are -7, 1, -5, -1, 10.

78. ## Math

write an expression equivalent to -1/4(8y-10)

79. ## Calculus help!

Does the limit of xy/(x^2 + y^2) exist as (x,y)--->(0,0)? Why or why not??

80. ## Math

4x4+4x4+4-4x4=?

81. ## health

Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?

82. ## Statistics normal distribution

54% of the children in a large city are boys. Using a suitable approximation, calculate the probability that a random sample of 1000 children contains more boys than girls ?

83. ## chemistry

a mixture of 100 grams of water is mixed with 100 grams of sodium nitrate at 30 degrees celcius if filtered how much salt would be left behind

84. ## Statistics

The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.71 inch?

85. ## arithmetic

Assume you have an unfair coin - the one that lands heads with probability P (not known beforehand). You have rolled such a coin 20 times and got 16 heads and 4 tails. What is the best estimator of P, Pˆ? (Hint: it is the one based on sample mean.)

86. ## chemisrty

Will 1,1,2, trichloro ethane rotate polarized light if it is cooled to low temperature and trapped in its lowest energy position? Yes, under all circumstances. Yes, but only if it is chiral. No, it will never rotate light. No, there is a racemic mixture

87. ## Chemistry

How can you determine the oxidizing agent in a reaction of iron with chlorine?

88. ## math

A Cat-Food Company makes a special kind of cat food. It consist of 40% meat powder and 60% grain. The meat powder costs \$1.20 per pound. The grain costs 80 cents per pound. What is the cost of the raw materials per pound of cat food?

89. ## Statistics

(a) With n=12 and p =0.4 find the binomial probability that p(9) by using a binomial probability table. (b) np ¡Ý5, nq¡Ü5, also estimate the indicated probability by using the normal distribution as an approximation to the binomial, is np < 5 or nq < 5

90. ## math

Macy's originally sold designer jackets for \$2.77.if they are put on sale at a markdown of 22%,what is the sale price

91. ## heeeeeeelp geometry

In a triangle ABC, BK is an angle bisector. A circle with radius 5/3 passes through the vertex B, intersects AB at a point L, and is tangent to AC at K. It is known that the length of AC is 3√3, and the ratio of the lengths |AK| to |BL| is 6:5. The area

92. ## chemistry calculation

I need to know what volume of liquid phosphoric acid at 85%, H3PO4 with density of 1.685 will replace 5 grams of powdered NaH2PO4. H2O. thanks

93. ## chemistry

Calculate the surface energy of the (100) plane of niobium. The heat of atomization is 745 kJ/mol. Express your answer in J/cm2.

94. ## Eng

In which of the following sentence do you find a verb phrase? A. I shall be all that I am and more. B. June was a collector of memorabilia. C. I believed every word he said. D. The crowed roared as the bull charged. Answer is "D"

95. ## Set and relations

Help me understand: {5} is a subset {0,2,5} The way I read it is the only element in {5} is 5 and it is a member of the set {0,2,5}. I s this true?

96. ## MathMath

-3/-8 < 8/23 ? Can this even be true since the first fraction has a negative denominator?

97. ## biology

wer can i get synthetic plant hormones

98. ## chemistry

How much milk at 10 degrees would need to be added to 250 ml of coffee at 95 degrees celsius to cool the coffee to 90 degrees celsius

99. ## C programming

Build a program that allows a user to select one of the following four menu options: enter new integer value, print pointer address, print integer address, and print integer value. For this program you will need to create two variables: one integer data

100. ## math

2/3 + 3/5= 5/6 - 3/4= 3/5 X 2/5= 1/2 DIVIDE 5/8=

101. ## Maths

Given 18 feet of fencing, what is the largest area that you can enclose with the fencing?

102. ## Math

Hi I'm really struggleing with this intergral, tried so many ways, just not getting it. Find the integral of Cot^2 X cos X dx

103. ## Healthcare Management

Do you believe the opportunities for continuing education and development are often more important to professionals than to other employees? why or why not?

104. ## Science

What is the major disadvantage of using fossil fuels?

105. ## Science

What are the names of three alternative sources of energy and one disadvantage of each?

106. ## statistics

The diameter of an electric cable is normally distributed, with a mean of 0.7 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.71 inch?

107. ## Science

Names of three alternative energy sources and one disadvantage of the three alternative energy sources.

108. ## Math

What music plan is a better deal? site A: \$29 per month plus .80 cents per download site B: \$17 per month plus \$1.19 per download write an equation and show how many downloads make site A a better deal.

109. ## English

1. They also sell big, soft pretzels. 2. They also sell big and soft pretzels. (Which one is grammatical?) 3. Try a taste of New York! 4. Try on a taste of New York! (Are both grammatical?) 5. Q3: What cart sells drinks, hotdogs and pretzels? Does a hotdog

110. ## chemisrty

The graph below shows two conductivity curves with respect to temperature of a germanium semiconductor. In one case, there is dopant added to the sample, and in the other there is none. Using some or all of the labels below, please drag and drop the labels

111. ## fisica

Combine φ=4r−2i with Snell's Law to express the angle φ as a function of i and n only. (a) Evaluate φ(i,n) for the following values (give your answers in degrees): i=3∘, n=1.35

112. ## chemistry

You will be presented with three crystallographic directions drawn in a unit cell. Please write the identity of the direction in the space provided below each picture. Use the correct form of brackets for describing a direction, and leave no spaces between

113. ## Math

I am doing an assignment on probability. It sais.. "By the start of the 21st century, only 1 in 6 babies in America was born with blue eyes. What is the probability that at least 1 out of 2 babies has blue eyes? And then it sais " What might be a good