# Questions Asked onJuly 14, 2014

1. ## Math

A standard deck of playing cards is shuffled and three people each choose a card. Find the probability that the first two cards chosen are clubs and the third card is black if the cards are chosen with replacement, and if the cards are chosen without

2. ## CHEMISTRY

If heat of combustion of acetylene C2H2 is -1301.1 kJ/mol then : a) Write balanced thermochemical equation of acetylene combustion b) If 0.25 mol C2H2 reacted according to the previous equation , and what is the emitted energy ? c) how many grams needed to

3. ## Algebra

A population of insects increases at a rate of 1.5% per day. About how long will it take the population to double? 2.5 days 5.0 days 46.6 days 66.7 days

4. ## CHEM

how many milliliters of a stock solution of 6.0 m hno3 would you have to use to prepare 110mL of 0.500 M HNO3?

5. ## Algebra

Two different radioactive isotopes decay to 10% of their respective original amounts. Isotope A does this is 33 days, while isotope B does this in 43 days. What is the approximate difference in the half-lives of the isotopes? 3 days 10 days 13 days 33 days

6. ## Algebra

Two different cars each depreciate to 60% of their respective original values. The first car depreciates at an annual rate of 10%. The second car depreciates at an annual rate of 15%. What is the approximate difference in the ages of the two cars? 1.7 ears

7. ## Maths lit,economics and business studies

Whichs career should I follow with my subjects economics,maths lit and business studies

8. ## math

The Jones family was one of the first to come to the U.S. They had 5 children. Assuming that the probability of a child being a girl is .5, find the probability that the Jones family had.

9. ## physics

There is a typo in this question. Ignore the ”cdot” in the units for G. A satellite is in a circular orbit just above the surface of the Moon. What is the satellite’s acceleration? The value of gravitational constant is 6.67259 × 10−11 Ncdotm2/kg2

10. ## algebra

at a restaurant brandy paid twice as much as Katie and Katie paid $3 more than Stephanie if the total combined amount they paid was$56 how much did Katie pay

11. ## math

One phone plan charges a $20 monthly fee and$0.08 per minute on every phone call made. Another phone plan charges a $12 monthly fee and$0.12 per minute on each call. After how many minutes is the charge the same for both plans? A.60 minutes B.90 minutes

12. ## CHEMISTRY

We have this reaction : HCO3- + OH- => CO3^-2 + H2O Specify the conjugate pairs and , which direction the reaction equilibrium shift ? and How ( as a rule ) ?

13. ## Science

A test is performed to see if applying fertilizer to rose bushes increases the number of flowers on bushes. Which of the following best relates to the hypothesis for this experiment? A. Watering all of the rose bushes the same amount throughout the

14. ## CHEMISTRY

NH3(g) + H2O(l) NH4+ (aq) + OH- (aq) a) According to delta H ( Enthalpy ) , which direction the equation will shift ? b) According to Entropy , which direction the equation will shift ? c) Assuming that delta G is positive , then delta S is greater than

15. ## English

What can you infer about the poet’s attitude about humanity from these lines in “Song of Myself”? These are really the thoughts of all men in all ages and lands, they are not original with me, / If they are not yours as much as mine they are nothing,

16. ## Science

A student is assigned the task of measuring the mass of one tennis ball using a scale for which the zero adjustment on the balance is not working. The student is given three balls and the can in which they were packaged. Which of the following strategies

17. ## math

Paul has 8 white socks, 4 blue socks,10 grey socks, and 12 black socks in his drawer. The socks are all jumbled up. What is the greatest number of socks that he would need to pull out to have a matching pair?

18. ## Chemistry

Benzene reacts with hot concentrated nitric acid dissolved in sulfuric acid to give chiefly nitrobenzene, C6H5NO2. A by-product is often obtained, which consists of 42.86% C, 2.40% H, and 16.67% N (by mass). The boiling point of a solution of 5.5 g of the

19. ## PHYSICS MAT

A 1.2 kg object moving at initial velocity 2.0m/s collides elastically with a stationary 0.5kg object horizontally. Calculate A) the velocity of each object after the collision. B) the impulsive force if the contact time is 0.3 s.

20. ## physics

A ski slope drops at an angle of 24 degrees with respect to the horizontal and is 500 m long. A 60 kg skier skis down from the top to the bottom of the slope. A.) Determine the change in gravitational potential energy of the skier+earth system. b.) If 20%

21. ## English

1. The train leaves at 7 this evening. 2. The train will leave at 7 this evening. 3. He meets the girl at 7 this evening. 4. He will meet the girl at 7 this evening. ----------------- #1 means #2, right? What about #3 and #4? Does #3 mean #4? Is #3

22. ## Biology

. Which of the following parts of the circulatory system carries oxygenated blood? A An artery moving blood from the heart to the lungs B. A vein moving blood to the heart from the body C. An artery moving blood from the heart to a muscle cell D. A venule

23. ## math

The altitude of an equilateral triangle is 6 square 3 units long. The length of one side of the triangle is ____ units.

24. ## Trigonometry

If the distance covered by an object in time t is given by s(t) = t^2 + 5t , where s(t) is in meters and t is in seconds, what is the distance covered in the interval between 1 second and 5 seconds?

25. ## Chemistry

A solution of acetic acid, CH3COOH, has a concentration of 0.218 M and a density of 1.00 g mL-1. What is the molality of this solution?

26. ## science

element 118 was reportedly synthesized in 1999, but the claim was later retracted. as a consequence of that experiment, element 116 was discovered. to what period and group would each of these two elements belong, and what known elements should each

27. ## Geometry

The volume of a prism which has an altitude of 10 units and has a right triangle base with a hypotenuse of 13 units and a leg of 12 units is what?

28. ## us history

A popular expression asserts that "9-11 changed everything." In your reasoned opinion, based on the text and our discussions, do you think this is an accurate reading of American History since 2001?

29. ## chemistry

How much 9% solution can you make by diluting 350ml of a 15% solution?

30. ## statistics

M&M’s The candy company claims that 10% of the M&M’s it produces are green. Suppose the candies are packed at random into small bags containing about 25 M&M’s per bag. A class of elementary students learning about percentages opens several bags,

31. ## Math

What power of 7 is 40 353 607?

32. ## Math

Find three consecutive integers that have a sum of -402. Describe your strategy.

33. ## algebra

Please help me solve this: If an object is projected upward with an initial velocity of 112 feet per second from a height h of 128 feet, then its height t seconds after it is projected is defined by the equation h=-16t^2 + 112t + 128. How many seconds

34. ## Chemistry

At 21.0 °C, a solution of 23.71 g of a nonvolatile, nonpolar compound in 30.64 g of ethylbromide, C2H5Br, had a vapor pressure of 319.7 torr. The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is

35. ## chemistry

How would polyethylene have the VSEPR shape of tetrahedral?

36. ## algebre

Victor needs to calculate the number of miles per gallon his car averages. His car's gas tank holds 15 gallons of gas. Write an equation that will help him determine the average number of miles his car gets per gallon of gas.

37. ## Chemistry

A saturated solution is made by dissolving 0.325 g of a polypeptide (a substance formed by joining together in a chainlike fashion some number of amino acids) in water to give 1.37 L of solution. The solution has an osmotic pressure of 4.13 torr at 28 °C.

38. ## Economics

Why is the money multiplier in the United States smaller than the inverse of the required reserve ratio?

39. ## math

Find the coordinates of the midpoint of the segment whose endpoints are given. W (-3, -7) and X (-8, -4)

40. ## physics

2.Boxcar A, with a mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg and is initially at rest. The boxcars collide inelastically and move together after they get stuck. What is their combined velocity?

41. ## Chemistry

Although I do very well in chemistry I never really understood converting units. Perform each of the following conversions. A. 8.43cm to millimeters B. 2.41x10^2cm to meters C. 294.5nm to cm D. 1.445x10^4m to kilometers E. 235.3m to millimeters F. 903.3nm

44. ## English

1. She has already bought the tickets. 2. She has bought the tickets already. 3. Already she has bought the tickets. 4. I am already ready to go out. 5. He already finished his homework. ---------------- Which ones are correct?

45. ## us history

Explain the evolution of Cold War liberalism between 1945 and 1968, that is from the presidency of Harry S. Truman through John F. Kennedy and to Lyndon Baines Johnson. Why did Jimmy Carter eschew the label during the 1976 election?

46. ## Calculus 2

find the arc length of the graph of the function over the indicated interval. x^5/10+1/(6x^3) on the interval (3,6)

47. ## Physics

how much does a 2 lietr bottle of soda pop weigh in pounds? assume that the pop has the density ofg water,namely 1 kg\lietr and that the weight of the bottle itself is negligible?

48. ## physics

You walk to the corner store after school to buy a carton of milk before going home. The store is 750 m south of the school, and your house is 625 m north of the school. What distance have you travelled since leaving the school?

49. ## English

1. He has lived in the town three years ago/last month/in 2003. 2. He has lived in the town before. 3. He has lived in the town in the past. 4. He has lived in the town recently. 5. He has lived in the town lately. ---------------- #1 is not correct, is

50. ## Math

Find the Exact Value of the Composition cos(arcsin(1/4))

51. ## programming

write a program that creates a list of employees objects of size n entered from user using list interface and a list class implementation and display all employees in list and print employee name with minimum salary and remove employee with minimum salary

52. ## Math

About 190 million drivers are registered in the United States. While on a trip with her family, a student counted the number of male drivers and female drivers on the road. There were 58 male drivers and 48 female drivers. Using the sample predict the

53. ## science

homogenized milk is composed of microscopic globules of fat suspended in a watery medium. is homogenized milk a true solution?

54. ## math

If A and B work together,they can finish a task in 2 hours. If they do the task separately, B can finish 3 hours earlier than A can. Find the time required for B to finish the task alone.

55. ## Public Organization Management

Can someone read over my case paperI cannot add a file so i just copied and pasted it...I did not add my references at the end either or the tables since they wont show up right here just need to see if this makes sense and flows and my in paper citations

74. ## c# programming

Trying to create a program using following algorithms. JumpSearch(list,lower,upper,jump,x) {Look for X in List[lower ... upper]. Report its position if found, else report 0. List is sorted in increasing order. upper>=lower>0; upper-lower+1>=jump>=1.} index

75. ## Chemistry

A 38.9 g piece of iron at 84.6oC is placed in a beaker containing 179.7 g of 20.7oC water. What is the final temperature (oC)of the water?

76. ## statistics

assuming that you wished to have the highest possible score on an exam relative to ht e other scores, would you rather have a score of 70 on a test with a mean of 60 and a standard deviations of 5.2 or a score of 81 on a test with a mean of 79 and a

77. ## POL 201 American Government

Got 10/10 Question 1.1. The trajectory of cases from Marbury v. Madison demonstrate that the Supreme Court (Points : 1) ✓ A- had to stay within the confines of public opinion. B- always had supreme authority. C- was afraid of the states. D- needed to

78. ## Resume Writing

Hello. I am creating a resume. Under one of my bullet points, I want to say that I write inspirational blogs. How would I say that in the resume way?

79. ## Algebra

Given the point-slope form of a line, find the point and slope we could use to graph. y-4=3/2(x+5)

80. ## science

Name the ionic compound form when a Magnesium reacts with chlorine?

find all real numbers that satisfy the equation: sinx= -\sqrt3/ 2

82. ## science

the potential energy of an electron in H-atom is -13.6eV.if the potential energy of an electron in He+ ion is -3.4eV ,what would be the excited state of He+?

83. ## CHEMISTRY

We have : Cl | 1) :B-Cl with two unshared electrons | Cl F | 2) :N-F | F then , if we assume that N and B bind covalently , which of them is acid ? And is that also bronshted- lowry acid ? explain thanks

84. ## Algebra

I really don't understand what I am doing. Needing help! With graphing, tell whether the graphs of each pair of equations of each pair of equations are perpendicular. 1.y=7x-9 2.-3y=21x+7 slope=7 y=-7x-(7/3) y-intercept=-9 slope=-7 y-intercept=-(7/3)

85. ## accounting

A partner withdrew Rs.2000 at the beginning of every month.the rate of interest on drawings is 10%per annum. What is the amt. of interest?

86. ## Math

Continue the pattern for three more terms. Describe how to find the successive terms. a)12,9,6,3 b)5,6,8,11 c)3,-1,-6,-12 Please help

87. ## Pharmacology

Amoxicillin suspension 125mg/5ml give ¾ tsp PO bid Disp: 10 day supply 5. How much suspension is required to fill this prescription? 6. What is the amount of mg per dose?

88. ## physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?

89. ## Algebra

given the point-slope form of a line, find the point and slope we could use to graph y-4=3/2(x+5) answers: P: (-5/4) S: (3/2) how do I get to the answer

90. ## math

In a shuffled deck of 52 cards, we remove 1 card (we don’t know which one) and use LINEAR SEARCH to find the two of clubs. a. What is the average cost to find the two of clubs, if it is guaranteed to be in the deck? b. What is the average cost if the two

91. ## math

In an ordered (A – K, ♠♢♣♡) 52 card deck, using JUMP SEARCH, looking for the queen of hearts, a. What is the optimum jump size k? b. How many probes (m) will it take with the optimum jump size? c. What is the worst case number of comparisons

92. ## math

help It is known that a particular bipartition bacterium reproduces every 20 minutes, that is displayed 2 every 20 minutes. How many bacteria will last 10 hours

93. ## us history

Despite Watergate, did not Richard Nixon's presidency start the Republican ascendency of the following period? Why and how did this happen?

94. ## History

Why was the policy of containment unsuccessful in Vietnam/Asia?

95. ## English

1. That coat appears to fit you well. 2. That coat seems to fit you well. 3. That coat becomes you well. 4. That coat looks like becoming you well. (Are they all grammatical and the same in meaning?) 5. Christmas is an important feast for Christians. 6.

96. ## Spanish

The instructions are to choose the best answer for the statements. I'd like to know if I answered correctly or if I should change my answer. 1. Perdone, señor. ¿Puede decirme dónde puedo cambiar cheques de viajero? Ud. Puede cambiarlos en _________. A.

97. ## Pre algebra

Will has a mean score of 62 on the first five test in science. if he gets a 50 on the next test what will his mean be then?

98. ## math

help please The measures of the sides of a right triangle form an arithmetic progression whose difference is 1. Find the measure of the hypotenuse

99. ## math

help A paper sheet of 0.1 mm thickness is taken. Is cut in two and placed one above the other; is a thickness of 0.2 mm. This roll is cut into two and put prte above the other; is a thickness of 0.4 mm. The next time the same process takes place, the stack

100. ## pharmacology

Bismuth Subsalicylate 525 mg take 2 tablets QID? What is the total number of tablets to dispense for Bismuth Subsalicylate

101. ## English

Posted by rfvv on Friday, July 11, 2014 at 3:01am. 1. Exchange points with another team. 2. Swap points with another team. (Are both the same?) 3. Take away 300 points from one team. 4. Bring 300 points from another team. 5. Take away 30 points from each

102. ## English

1. I searched for my glasses, but I couldn't find them. 2. I searched for my glasses, but I couldn't find it. (Which one is grammatical?) 3. The electric fan was moving from left to right. 4. The electric fan was moving from the left to the right. (Which

103. ## Education/College

I have to invent a fictional character and do charts on them from infancy to early childhood,middle and late childhood adolescence, and early adulthood. I have to give this character a name , race, gender and parents. I will have to find pictures to

104. ## science

what is the correct number of protons, neutrons and electrons in a neutral Cadmium-112 atom?

105. ## math

it is a sequence. what do you tjink is the next ? and how does it happens / 1,11,21,1211,11121 . . .

106. ## math

Solve and Check√x-6=√3-√x

107. ## Math

There are 6 white, 9 brown, and 1 pink towels. What is the probability of using a brown or pink towel first.

108. ## physics

A tank has a length of 0.18 m, a width of 0.78 m, and a height of 0.44 m. If it is filled with water, how many kilograms does it weigh?

109. ## General question

How can I search the questions which I uploaded chronological order?

110. ## politicws

When the President appoints a nominee to the Supreme Court, he mainly

111. ## us history

Between the end of the Korean War and the escalation of the Vietnam War in 1965, the concept of an American dream" seemed to have its strongest hold on the American population. How did the protest movements of the mid to late 1960s and early 1970s confirm

112. ## pharma

22 g of potassium iodide is diluted in 1.5 L of sterile water for injection. What is the final percent strength (w/v)?

113. ## us history

Why was Martin Luther KingÕs ÒI have a dreamÓ speech so pivotal in Americanhistory? Did it redefine the nature of America? Of the American dream,?

114. ## us history

Explore both the strengths and weaknesses of Ronald Reagan's presidency. What has made his vision so dominant ever since?

115. ## Science

There are two set pieces in a theater sitting on platforms with wheels. One is a tree with a mass of 50 kg. It is moving at 3 m/s. The other is a fence with a mass of 30 kg. If the two set pieces have equal momentum, how fast is the fence moving? A. 3 m/s

116. ## math

what is the sum from 1 to infinity of ( 3n^3 - 4n^2 + 5)/(6n^5-2n+7)