# Questions Asked onApril 30, 2014

1. ## physics

Airplane flies at velocity of 400 mph and the wind is blowing north at 200 mph

2. ## statistics

construct a 95% confidence interval for the difference betwen the proportions of high-school students an college students who read newspapers regularly.

3. ## mathematics

1.FIND the bank discount and proceeds on the following loans i) RM4000 FOR 3 MONTHS at 10 1/2 percent ii) RM4215 FROM 10 june to 5 august of the same year at 10 percent

4. ## Calculus

if the work required to stretch a spring 1 ft beyond its natural length is 12 ft-b, how much work is needed to stretch 9 inches beyond its natural length?

5. ## physics 1

The drawing shows an intravenous feeding. With the distance shown, nutrient solution (ρ = 1050 kg/m3) can just barely enter the blood in the vein. What is the gauge pressure of the venous blood? Express your answer in millimeters of mercury.

6. ## Chem

How do i balance Cu(NO3)2 + HNO3

7. ## Science

If a rock weighs 100 pounds on Jupiter, what will it weigh on earth?

asked by Jenny 2
8. ## Math

There are 92 boys. There are 14 fewers girls. How many are the girls are there?

9. ## chemistry

What volume of a 0.500 M solution should be diluted to make 250 mL of a 0.400 M solution?

10. ## math

A regular hexagon is drawn inside of a circle so that each of its vertices touches the circle. The diameter of the circle is 4 centimeters and the perimeter of the hexagon is 12 centimeters. How much longer is the circumference of the circle than the

Research studies indicate that the referral approach is effective because: A. customers seldom trust a salesperson, but do trust a third party. B. customers may be far more impressed with your good points if they are represented by a third party, rather

12. ## Chemistry

How would you write the net ionic equation for [Co (en) 2Cl2]Cl with AgNO3. Is it AgNO3 ----> Cl^- + 3Ag^+?

13. ## Math

The steepest section of a track has a rise of 2240 meters for a horizontal distance of 6100 meters. what is the grade section of this track?

14. ## Math

Find x so the pitch is 1/3. There is also a number below the x in the figure which is 24 feet. So how do I solve?

15. ## accounting II

i am completely stuck on this! 5. Manufacturing statements and cost behavior Tampa Foundry began operations during the current year, manufacturing various products for industrial use. One such product is light-gauge aluminum, which the company sells for

16. ## College Algebra and Trigonometry

A weight is attached to an elastic spring that is suspended from a ceiling. If the weight s pulled 1 inch below its rest position and released its displacement in inches after t seconds is given by x(t)=(5pt+p/3. Find the first two times for which the

17. ## Help with one limit

I'm asked to find the limit as n approaches infinity of : [(2^(n) +1]/ [2^(n+1)]. The review we were given has [1+ 2^(-n)] / 2 as the next step, but I'm not quite sure how to make that leap myself. The final answer is 1/2. How do you solve this limit?

18. ## Probability

Fred is giving away samples of dog food. He makes visits door to door, but he gives a sample away (one can of dog food) only on those visits for which the door is answered and a dog is in residence. On any visit, the probability of the door being answered

19. ## Finance

Jungle, Inc., has a target debt−equity ratio of 0.84. Its WACC is 11.5 percent, and the tax rate is 34 percent. Required: (a) If Jungle's cost of equity is 14.5 percent, its pretax cost of debt is percent. (b) If instead you know the aftertax cost of

20. ## Probability

Suppose that you have two laptops, both of which you begin using at time 0. Each laptop will eventually fail, and we model each one's lifetime as exponentially distributed with the same parameter λ. The lifetimes of the two laptops are independent. One of

21. ## Probability

In parts 1, 3, 4, and 5 below, your answers will be algebraic expressions. Enter 'lambda' for λ and 'mu' for μ. Follow standard notation. Shuttles bound for Boston depart from New York every hour on the hour (e.g., at exactly one o'clock, two o'clock,

22. ## Probability

All ships travel at the same speed through a wide canal. Each ship takes t days to traverse the length of the canal. Eastbound ships (i.e., ships traveling east) arrive as a Poisson process with an arrival rate of λE ships per day. Westbound ships (i.e.,

23. ## Economics

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

24. ## Help!

How are Boolean search strategies and other search filters useful? A.They organize results alphabetically. B.They narrow the search results. C.They increase the number of search results. D.They find creative sources. Please help me!

25. ## math

A sector of a circle subtending an angle 300 degrees at the centre is used to form a cone with base radius 6cm. Find the (a.)radius of the circle (b.)volume of the cone (c.)area of the minor sector of the circle

26. ## physics

A climber stands on a ledge on one side of a valley. He claps his hands and hears an echo from the opposite side of the valley 1.6 s later. How wide is the valley?

28. ## fizk

3 - A box of mass 2 Kg lies on a rough horizontal floor with the coefficient of friction between the floor and the box being 0.5 (Figure 3). A light string is attached to the box in order to pull the box across the floor. If the tension in the string is

29. ## math

Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The

30. ## Economis

Are there any current subsidy issues that are discussed?

31. ## math

what number is 66 2/3% of 81?

32. ## Maths

There are 12 balls in a bag, where n of them are white balls. If 2 balls are chosen at random from the bag without replacement, the probability of choosing at least 1 white balls is 19/33. Find n.

33. ## Physics

A cue ball collides with two other snooker balls and comes to a complete stop. The angles between the centres at the point of collision are shown below. If the velocity of the incoming cue ball is 5 m/s, determine the velocities of all moving balls after

asked by help pls
34. ## English

Outlines should always provide information in chronological order. A.) True B.) False******************** Your outline must be followed during drafting; you should never adjust your outline after it is completed. A.) True B.) False*********************

35. ## math

A swimming pool 35 ft. long and 20 ft. wide is filled to an average depth of 5ft. How many gallons of water does the pool contain if a cubic foot holds 7 gallons?

asked by Rhett cowley
36. ## Math

If a pool holds 22,000 gallons, how long will it take to fill the pool at a rate of 400 gallons per minute, rounded off to the nearest minute?

asked by Rhett cowley
37. ## Math

A steel reinforcing rod is 12 ft. long and 1" thick in diameter. If a cubic foot of steel weighs 490 lb., how much does the rod weigh (to the nearest pound)?

asked by Rhett cowley
38. ## Math

A plumber is laying pipe. His assistant digs a trench in roughly the shape of a rectangular solid measuring 150 ft. in length, 9 inches deep along both sides, and 12 inches wide at the top and bottom. How many cubic feet of earth did he remove (to the

asked by Rhett cowley

54. ## ALG

Solve. Write the solution set using interval notation. x2 + 16x + 64 > 0 Solve. Write the solution set using interval notation. x − 4/ (x + 1)(x − 1) ≤ 0

asked by HELP ASAP
55. ## language art pllz help

1. Which of the following would most likely connect with the speaker of "Growing Pains"? (1 point)a teen whose parents are going through a difficult divorce a teen who has let down one of her best friends a teen whose mother is often too busy to spend time

56. ## Math logarithms

The graph, y=lg x is rotated 90 degrees anticlockwise around the origin. What is the equation of the new graph? Please provide proof.

57. ## math

If 9 apples plus 4 pears cost $2.6 and if 4 pears pluse 9 apples cost$1.90 what does each apple and pear cost

58. ## Ict

Full form LCD

59. ## Science

a 5 kg skateboard moves at 7 m/s^2 . What is the force of the skateboard? 35 N

60. ## Chemistry

what is the specific heat of an unknown substance of 2000 j of energy required to raise the temperature of 4 grams of substances 5 degrees celsius

asked by Tyran Wilson
61. ## math

1.   Which graph might show the temperature during a 24-hour period?  (1 point) A B C D 2.   Which graph might show the amount of money in a bank account if money is never taken out?  (1 point) A B C D 3.   Which graph might show the amount of

62. ## physics

A solid uniform sphere is released from the top of an inclined plane .25 m tall. the sphere rolls down the plane without slipping and there is no energy lost from friction. What is the translational speed of the sphere at the bottom of the incline?

63. ## Physics

A cylinder with a movable piston has the square meter 24cm2. How far will the piston go down if 5.0 kg weight is laid on the piston and the temperature remains the same? P: 1.0 atm. Help please :)

asked by Physics: Gas Law?
64. ## Physic II

Heat can be transformed into work with 100% efficiency , but work cannot be transformed into heat with 100% efficiency. False right?

65. ## Statistics

Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t

66. ## history

Mark each statement if it describes a characteristic or use of a Gothic cathedral. A. had tall spires, lofty towers, and pointed arches B. was a place of safety as well as a house of worship C. had flying buttresses to support the walls D. architectural

asked by help plzz
67. ## Statistics

Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a

68. ## English

I'm writing a compare and contrast paper. My question is when I use transitional word showing contrast do I use a comma right after transitional word. Ex. Unlike, Keysha's job, my job is easier.

69. ## s.s

mrs sue can you cheak my work please

70. ## physics

what property does (-5)+5=0 illustrate

71. ## science

A homeowner determined that he used 114 gallons of oil every month to heart his home during the winter. this information would be considered part of his ___________________.

asked by help plzz
72. ## physics

A stone is thrown in vertical upward direction with velocity of 5 m/s. if the acceleration of the stone during it motion is 10 m/s2 in h downward direction, what will be the height attained by the stone and how much time will it take to reach there?

73. ## beecham

what is 5 over 9 + 5 over 12 in simplest form

74. ## ss

5.What did the South do with the cotton during the war

75. ## Chemistry

Please help!! I am so lost!! calculate the number of moles in 100g each: PbCl2 K2SO4 HNO3 CH3CH2OH V2O5 Thankyou!!

76. ## Physic II

a carnot heat engine operates between reservoirs at 550K and 300K, discarding 1500J of heat in each cycle. A) What is the engine's efficiency? B) How much heat is supplied to the engine by the hot reservoir in each cycle?

77. ## Grammar

If the quotation is punctuated correctly in the following sentences, write C. If it is punctuated incorrectly, write I. 1. When the speaker hears a tapping sound, he says to himself, "Someone must be knocking at the door". A: I 2. For suspense and horror,

78. ## science

the energy stored in atoms is released when electricity is made with ____________ power.

asked by help plzz
79. ## Chemistry

Please help me write these two balanced equations. Dissolution of rust, Fe2O3, by sulfuric acid. and Ammonium nitrite reacts with oxygen to form ammonium nitrate. Any help would be awesome, thankyou.

80. ## statistics

The mean income per person in the United States is 36,500

194. ## Math

Cathy makes a deposit of 4500 dollars into an account that pays 5.8 percent simple interest. How much is in the account 8 years later?

208. ## Physics- HELP PLEASE:)

4.) Three 20-Ù resistors are connected in series to a 9-V battery. What is the voltage difference across each resistor? 5.) Three resistors of 5 Ù, 10 Ù, and 2 Ù are connected in parallel with one another. What is the equivalent resistance of this

215. ## math

-2d + 18 - 4d = 60

216. ## Algebra

F = Av^2/400, for v (Force of wind on a sail)

217. ## accounting

Meranda Corporation purchases a machine for $125,000. It has an estimated salvage value of$10,000 an is expected to produce 50,000 units in its lifetime. During the first year of operation, it produced 14,500 units. To the nearest dollar, the depreciation

218. ## economics (7)

Assume that a $1,000 bond issued in 2012 pays$100 in interest each year. What is the current yield on the bond if it can be purchased for Instructions: Enter your responses as a percent rounded to one decimal place. (a) $1,200? Yield on$1,200 bond is =

219. ## Physic II

The decay constant of a radioactive nuclide is 9.5x10^-3 s^-1 . At given instant, the activity of a specimen of the nuclide is 80 mCi. The time interval required for the activity to decline to 40 mCi is closest to: ?

220. ## Math

HELP A Certain state's lottery LOTTO, is set up so that each player pays \$1 per ticket and chooses six different numbers from 1 to 49. if the six numbers chosen match the six numbers drawn each Saturday evening, the player wins the top cash prize. the

221. ## chemistry

1.50 mol sample of helium at a certain pressure and temperature has a volume of 31.4 L. a second sample of helium at the same temperature and pressure has a volume of 42.4 L. Therefore the second sample contains how many moles of helium?

222. ## Calculus

A fence 8 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

asked by JAY Z
223. ## math

A bag contains three red marbles, three green ones, one lavender one, five yellows, and two orange marbles. How many sets of five marbles include either the lavender one or exactly one yellow one but not both colors?

224. ## math

The rectangular coordinates of the point P are (-1,sqrt 3). If P is reflected witg respect to the x-axis, then the polar coordinates of its image are¡­??

225. ## College Algebra and Trigonometry

A weight is attached to an elastic spring that is suspended from a ceiling. If the weight s pulled 1 inch below its rest position and released its displacement in inches after t seconds is given by x(t)=(5pt+p/3. Find the first two times for which the

226. ## Grammar Practice - Help!

Can someone check these? Choose the item that is correctly capitalized for questions 1–6. 1. (1 point) our family doctor** our family Doctor 2. (1 point) Senator Barrientos** senator Barrientos 3. (1 point) aunt Ruthie Aunt Ruthie** 4. (1 point) the

asked by Sandy East Ward
227. ## math

Can you solve this problem for me? Nina has twice as many nickels as dimess. In all, she has 70¢. How many nickels and dimes does she have?