# Questions Asked onJuly 6, 2013

1. ## math

Show that the minute hand of a watch gains 5 degree and 30' on the hour hand in a minute

2. ## Chemistry

What would be the pH of a 0.1 M aqueous solution of the phenolate ion, C6H5O–? (Ka for phenol, C6H5OH, is 1.3 x 10–10) I got the answer 5.44 but I think it's wrong. Do I have to subtract it from 14?

3. ## physic

Consider a train that rounds a curve with a radius of 570m at a speed of 160 km/h (approximately 100 mi/h)Calculate the friction force needed on a train passenger of mass 75kg if the track is not banked and the train does not tilt.

4. ## algebra

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that

5. ## Medical Coding and Billing

This is a 35-year-old HIV-positive male with progressive lymphadenopathy and unexplained fevers, night sweats, and chills. CT scan of the chest, abdomen, pelvis, and neck showed extensive lymphadenopathy involving mediastinum and left hilum, paratracheal

6. ## probability

For a family with 2 children, the sample space indicating boy (B) or girl (G) is BB, BG, GB, and GG. If each of the outcomes is equally likely, find the probability that the family has 2 girls, given that the first child is a girl.

7. ## math

From a bag of peanuts, phillip took 1/3, then joy took 1/4 of the remaining, brent took 1/2 of the remaining, and preston took 10. There were 71 peanuts remaining....how many were there to start?

8. ## ChM

Calculate the pressure exerted by 1.2 mol of gas in a volume of 28.2 L and at a temperature of 61 C.

9. ## physic

A stone is dropped from the roof of a high building. A second stone is dropped 1.00s laterHow far apart are the stones when the second one has reached a speed of 12.0m/s ?

10. ## economy

consider a perfectly competitive market in which all firms have the same costs. choose the statement that is incorrect a)the market demand is elastic at the market price b)each firm takes the market price as given and produces its profit -maximizing output

11. ## algebra2

a company has estimated that the probabilities of success for 3 products introduced in the market are 1/5,2/3, and 1/2, respectively. Assuming independence, find the probability that exactly 1 product is successful.

12. ## statistics

According to the local real estate board, the average number of days that homes stay on the market before selling is 78.4 with a standard deviation equal to 11 days. A prospective seller selected a random sample of 36 homes from the multiple listing

13. ## word problem

a farmer has 800 yards of fencing to enclose a rectangular pasture. Since one side of the pasture boarders a river that side does not need to be fenced. if the side perpendicular to the river must be twice as long as the side parallel to the river, what

14. ## math

A traffic light follows the pattern green, yellow, red for 55, 5, and 20 seconds, respectively. What is the probability that the driver approaching this light will find it green or yellow?

Ignacio obtains a loan of \$9,500, at 8.75% interest, for months. Find the amount of simple interest. (Round to the nearest cent) \$598.78 \$658.07 \$701.36 \$825.55 The answer I got was \$658.07, is that right?

16. ## physic

An unmarked police car traveling a constant 95km/h is passed by a speeder. Precisely 2.00s after the speeder passes, the police officer steps on the acceleratorIf the police car accelerates uniformly at 3.00m/s2 and overtakes the speeder after accelerating

17. ## physical science

a string 0.5 m long is used to whirl a 1 kg stone in a horiziontal circle at a uniform velocity of 5m/s what is the tension on the string?

18. ## physic

If a curve with a radius of 80m is properly banked for a car traveling 63km/h , what must be the coefficient of static friction for a car not to skid when traveling at 97km/h ?

19. ## Government

People who believe voting is important have high political ----c-c-. What's the missing word? Thanks.

21. ## Help please criminal j.

1. In re Gault assured juveniles a. the right to a jury trial b. all the above c. due process in the legal system d. the right to be tried as an adult All the above 2. Obtaining a confession by__ is constitution a. misrepresentations b.

22. ## MATH

4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer.

23. ## Trigonometry

While camping by the Merced River in Yosemite Valley, a group of friends were admiring a particular tree on the opposite bank. Maria claimed that the height of the tree could be determined from the group’s side of the river by the following method: •

24. ## US Government

Any person currently in --i- cannot vote. What is the blank word? Thanks.

25. ## math

a number consists of two digit whose sum is 9 .if 9 is subtracted from the number the digits interchange their places.find the number

26. ## math

I'm confused on how to do this. algebra M(X,Y) is midpoint of CD with endpoints C(5,9) and D(17,29). Find the values of X and Y. Show the MC = MD.

27. ## trig

A turntable in a shop makes 36 revolutions per minute. How many revolutions does it make per second? My answer is 216 revolutions per second. Am I right? Thanks.

28. ## math

Mr.Foote placed a cement walk along the side of his house.The walk is 18 inches wide and 32 feet long. What was the cost of the walk at \$2.10 a square foot?

29. ## math

How do you do this? AB has endpoints A(-3,2) B(3, -2) Find the coordinates of the midpoint of AB. Find AB to the nearest tenth.

30. ## Chemistry

27. 0 mL of 1.00 M HClO4 are mixed with 27.0 mL of 1.00 M LiOH in a coffee cup calorimeter. The calorimeter constant is 28.1 J/Celsius. Both were initialized at 23.31 degrees Celsius. Calculate change Hrxn (in kJ/mol) for the reaction.

31. ## Math

AB has endpoints A(-3,2) and B (3,-2) Find the coordinates of the midpoint of AB Find AB to the nearest tenth.

32. ## Algebra

A piggy bank with only pennies and nickels has 28 nickels for every 52 pennies. What percent of the coins are nickels? solve this problem using a. bar diagram b. percent equation

33. ## algebra

The U.S. Weather Service reports that in a certain northern city it rains 35 days and snows 40 days in the winter. However, it rains and snows on only 10 of those days. Based on this information, what is the probability that it will rain or snow in that

34. ## math - help please

Assume that 2 cards are drawn in succession and without replacement from a standard deck of 52 cards. Find the probability that the following occurs: the second card is a 9, given that the first card was a 9.

35. ## Physics

a circular hoop of mass and radius spins like a wheel rotating about its centre with moment of inertia. its period it T (1) find the kinetic energy in terms of the given parameters 2. if such a hoop rolls with its centre moving at velocity v show that it

Solve the inequality. Round your answer to the nearest tenth. x2 + 5⋅x - 7 > 5

37. ## Government

The first American voters were only white, male ---------s. What is the blank word?

38. ## physics

A 4 g bullet leaves the muzzle of a riffle with a speed of 350 m s-1. What force is exerted on the bullet when it is travelling down the 0.85 m long barrel of the rifle?

39. ## math

A home was valued at &73,500. It was insured for 80% of its value at a premium of &0.40 per \$100. Find the yearly premium.

13. Bob and Joy Salkind want to save \$50,000 in 5 ½ years for home improvement projects. If the Bank of Aventura is paying 8% interest compounded quarterly, how much must the couple deposit now to have the money for the projects?

41. ## chemistry

same masses of different metal carbonates are fully decomposed. why is the volume of carbon dioxide different for each metal carbonate?

42. ## physics

a circular hoop of mass and radius spins like a wheel rotating about its centre with moment of inertia. its period it T (1) find the kinetic energy in terms of the given parameters 2. if such a hoop rolls with its centre moving at velocity v show that it

43. ## math

Bob and Joy Salkind want to save \$50,000 in 5 ½ years for home improvement projects. If the Bank of Aventura is paying 8% interest compounded quarterly, how much must the couple deposit now to have the money for the projects

44. ## math

What is the present value of \$73,000 in 11 years if the interest rate is 8% compounded semiannually?

45. ## physics

A pendulum bob swinging at a velocity of 10 m/sec would rise how high from its lowest point of its swing

46. ## Calculus

Find a general solution to each first ¨C degree ordinary differential equation. If an initial condition is given, find the corresponding particular solution. Write solution explicitly if possible. dx/dt=¡Ì(x+t+1)

47. ## CHM

A sample of gas has an initial volume of 2.4 L at a pressure of 855 mm Hg and a temperature of 298K. If the gas is heated to a temperature of 387 K and expanded to a volume of 4.1 L, what is its final pressure in mm of mercury?

48. ## French

Hi guys cud anyone help me?? I need a simple letter in french, describing the new apartment I have moved in, to my friend. Its pretty urgent guys....Thanks in advance

49. ## trigonometry

Through how many degrees does the minute hand of a clock moves in 5 minutes? In 1 1/2 hours?

50. ## Math

Two angles are complimentary. One of the angles is r. How do you express the other angle?

51. ## Math

A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?

52. ## phy

(Q1)A 40N force applied at an angle of 37c above the horizontal pulls a 5kg box on a horizontal floor. The acceleration of the box is 3m/s2,How large a frctional force must be retarding the motion of the box. (a)50 N(b)13N(c)17N(d)25N (Q2) A block of mass

53. ## physics

a circular hoop of mass and radius spins like a wheel rotating about its centre with moment of inertia. its period it T (1) find the kinetic energy in terms of the given parameters 2. if such a hoop rolls with its centre moving at velocity v show that it

54. ## CHM

A mixture of three gases exert a total pressure of 753 mm Hg.If Gas #1 has a partial pressure of 289 mm Hg and Gas #2 has a partial pressure of 122 mm Hg, what must the partial pressure be of gas #3?

55. ## Math

A box contains 4 tickets letter O, A, G, C. Two tickets will randomly be selected without replacement. What is the probability of selecting O then A in that order?

56. ## Physics

A block weighing 6.2 N requires a force of 2.2 N to push it along at constant velocity. What is the cooefficient of friction for the surface? Plsssss help asap..

57. ## math

Mr.Evans paid &10.60 each for a shipment of 72 shirts. He sold the shirts for \$14.20 each.What was his total profit on the shipment?

58. ## Algebra 2

A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15 visits to the gas station?

59. ## math

A box contains 4 tickets letter O, A, G, C. Two tickets will randomly be selected without replacement. What is the probability of selecting O then A in that order?

60. ## intermediate algebra

Hello, I am so stuck...I even watched two hours of videos, but it didn't really help me:( I am working on these kinds of problems... 3x-4|+5>32 And...as part of our homework, we have to enter it on the computer in interval notation. So I know that I solve

61. ## math

solve In(4x)=Ig 3 x Ig 5

62. ## Physics

A capacitor has stored energy U. If the voltage and plate separation are both doubled, the new stored energy is ____. Answer 2U a) 2U b) U/2 c) U d)4U

63. ## trig

Through how many degrees does the minute hand of a clock moves in 5 minutes? In 1 1/2 hours?

64. ## algebra

what will be the values for the following? 1. 4^1/2 (4 raised to 1/2) 2. 4^-1/2 (4 raised to -1/2) For number 1, my answer is 2. I hope I am right. For number 2, I don't have an answer yet.

65. ## algebra1please look over THANK YOU

The point (2, 15) is in the shaded region of which of the following inequalities? A) y-2x^2-4x ---(slash under the >) C) Y2x^2+3x+1 i got B. :)

Solve the inequality. Round your answer to the nearest tenth. x2 + 5⋅x - 7 > 5

67. ## Math

what is the area of the right triangle formed by halving a square with perimeter 36 along its diagonal? a) 9 b) 18 c) 18+ 9 square root 2 d) 40.5 e) 81

68. ## physics

two ropes are tied on a post and applied with forces of 8 and ion.If the amgle between them is 60degrees. Find the resultant vector

69. ## algebra1please look over THANK YOU

Write the number in the form a + bi: square root -9 + 16 i got 16 +3i is that right

70. ## algebra1please look over THANK YOU

Simplify the expression. (-4*i)(-4*i) I got 16 is that right

71. ## Algebra 1A

I am trying to simplify the factors -7/-6 in the problem -7k^7 m^7/ -6k^8 m^9. What is the correct answer? So far I have -7/-6km^2 my only problem tends to be simplifying -7/-6km^2

72. ## Algebra 2

Please help... The answer key says that the answer is 0.84...I want to understand how... Bobursley, the way you do it is incorrect... A gas station is giving away free glasses with 5 different designs. What is the probability of collecting all 5 in 15

73. ## Creative Writing

Is it really wrong to write dialogue like this: ["Hey," I said, patting her on the head.] I read somewhere that you're not technically supposed to add an action like that with a speech verb.

74. ## math

there are 6 white balls and 4 black balls.i takeout 2 balls at random,one at a time,without replacement.What is the probability that the second ball i take is black

75. ## plls help maaath

f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

76. ## physics

find the equilibrium of two is N forces acting upon a body,when the angle betweenthem is a)90degrees b)120degrees c)180degrees d)10degrees e)45degrees

77. ## heeeeeeelp math

f(x)=x ^2 +bx+c , b and c real .Find the minimum of (max|f(x)|)for x∈[−10,10]?

78. ## Healthcare Finance

accounting practices within health care organization

Simplify the expression: (2 + 6⋅i)(-1 + 6⋅i)

80. ## College Algebra

1 -1 -1 1 2 0 1 -3 -7 0 3 0 -2 2 10 6 2 4 5 9 -3Row1 + Row3 -6Row1 + Row4 How do I work this using a calculator I get so confused and I don't know where to go in order to input info.

81. ## science

how much work done if lina lift a package that weight 5.5 to a height of 0.5 m?

82. ## Math

Hi, I tried this problem different ways, but keep getting it wrong.I am rusty, and need a demonstration of how to do it, thanks! 2x+6.7x-6