# Questions Asked onMay 22, 2016

1. ## Algebra

A box contains 5 yellow balls, 3 blue, and 1 red ball. Two balls are drawn at random. Find the probability that the two balls are yellow

2. ## math

* A cat and a dog have a race. The cat’s strides are 30% shorter than the dog’s but it makes 30% more strides than the dog. Which of them will win the race?"

3. ## math

The measure of angle A is 124 degrees. What is the correct classification for angle A? a. acute b. right c. obtuse d. straight I'm pretty sure it's c. Right?

4. ## Algebra

A chemist wishes to mix a solution that is 4​% acid. She has on hand 66 liters of a 2​% acid solution and wishes to add some 8​% acid solution to obtain the desired 4​% acid solution. How much 8​% acid solution should she​ add? There is a chart

5. ## Math

Check my answers please? There are only 10 The figure below shows a triangle with vertices A and B on a circle and vertex C outside it. Side AC is tangent to the circle. Side BC is a secant intersecting the circle at point X: The figure shows a circle with

6. ## Geography

Why did the original farms on the Prairies turn out to be too small? What happened as a result of this? -------------------------------------- I think it has to do with the joining of the farms, to make one big lot, leaving more space, as a result the

7. ## Algebra

The height of Tower A is 940 feet more than Tower B. The two towers have a combined height of 1,540 feet. What are the heights of each​ tower?

8. ## physics

An insulated beaker contains 300g of water initially at 30 degree celsius. water at 100 degree celsius is added until the temperature of mixture reaches 50 degree celsius . the specific heat capacity of water is 4.2J/(kg degree celsius). how much water is

9. ## Easy Math

Draw a line with 3 distinct points on it. Label each with a different letter. How many different rays can you name using only three given points? a. 8 b. 6 c. 4 d. 2 Not quite sure. Could the answer possibly be four (c.)?

10. ## physics

A skier slides down a ski slope with an acceleration 2.2 m/s^2 directed down the slope. The coefficient of kinetic friction between the skis and the slope is 0.24. What is the angle of the slope with the ground?

11. ## Pharm

A 750 ml bag is being infused over 90 min. What is the rate of infusion in ml per hour?

12. ## Math

This year Grandma's age and Mother's age are the same but with the digits reversed. One year ago, Grandma was twice as old as Mother. How old are Grandma and Mother today?

13. ## Math

Form the perfect square trinomial in the process of completing the square. What is the value of c? x^2 + 3x + c = 7/4 + c c =

14. ## Physics

A DIVERGING lens has a focal length of 35 cm. (a) Find the image distance when an object is placed 48 cm from the lens. (b) Is the image real or virtual magnified or reduced?

15. ## Math

By what percent will the product of two numbers decrease if one of them is decreased by 25% and the other is decreased by 50%?

16. ## algebra

A mother is 21 years old then her new born daughter. how old does her daughter when her age will be 1 by 4 of her mother

17. ## Science (Biology)

Use your knowledge of photosynthesis to explain what is happening in the following graphs. 67(dot)media(dot)tumblr(dot)com /d99a0dd856c87dfc21b9314f89019994/tumblr_o7ltp1unLS1tt1il6o1_1280.jpg

18. ## science

Calculate the equilibrium constant of NH4HS H2S + NH3

19. ## Physics

A DIVERGING lens has a focal length of 35 cm. (a) Find the image distance when an object is placed 48 cm from the lens. (b) Is the image real or virtual magnified or reduced? I am very lost and don't even know where to start

20. ## Pre-Calc

Five cards are dealt from a standard deck of 52 cards. What is the probability that three or four of the cards are aces?

21. ## Physics

A barrel will rupture when the gauge pressure inside reaches 345 kPa. A vertical pipe is attached to the lower end of the barrel. The barrel and pipe are filled with oil, density of 1200 kg/m3. How long can the pipe be if the barrel is not to rupture?

22. ## Pre-Calc

Three cards are chosen at random from a standard 52-card deck. Find the probability that all three cards are hearts given that there are 13 hearts in the deck. Round to the nearest thousandth. Is this 0.013?

23. ## English

Hello. Thank you for help. Will you please answer a few more questions? 1) Which preposition is correct in the context: "your help at the most difficult moments in / of my life"? 2) Is it grammatically correct to say "God-blessed person" or "God's chosen

24. ## Chemistry

Given 100 mL of pure water at 40C, what volume of a solution of hydrochloric acid, with a density of 1.175 g/mL and containing 34.4% HCI by weight, could be prepared?

25. ## Physics

What is the pressure at a depth of 80 m in the ocean? The density of seawater is 1. 03 × 10 3kg/m3. Please express your answer in units of atm.

26. ## Geometry/Math

What Formula would I use to calculate how much my cardboard box with a surface area of 1578cm and a volume of 3078 cm would cost if cardboard was \$0.05 per square inch.

27. ## Math

Value has a bag that contains,9 blue marbles and , 13 yellow marbles she selects a marble at random,and then without replacing the first one selects another marble at random what is the probability that value selects a blue marble and then a yellow marble

28. ## physics

what is the importance/significance of calculating the magnetic flux density of a solenoid?

29. ## Mathematics

A motor car travels 175 km distance from a place A to B,at a uniform speed 70km/hr passes though all ten green traffic signals.Due to heavy traffic it stops for 1 minute at first signal,3 minute at second signal,5 minute at third signal and so on stops for

A six sided number cube is rolled and a coin is flipped. What is e probability that the number on the cube is less than 4 and the coin lands on heads? I think the answer might be 1/3. Heads and tails is 1 and less than 4 is 3. I am not sure.

31. ## Math

A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the

32. ## physics

as the permeability of a material is the ratio of the magnetic field strength and the magnetic flux, could the permeability of the material be multiplied by the magnetic field strength in order to calculate the flux?

33. ## maths

2 clocks set at 6am 1loses 2mns every hour 1 gains 1mn every hour at what time will they be 10mns apart

34. ## math

rozana,a fisherwomen throws her net in a lake.the net falls in the lake when it is 2 meters above the ground at 5 meters per second at angle of 60 degrees.(assume that the acceleration due to gravity is -9.8m/s^2).find the vector function of the net at the

35. ## MATHS

WHAT WILL BE THE GREATEST 5 DIGIT NUMBER WITH 7 ON ITS TENS PLACE AND WHEN ROUNDED OFF TO NEAREST HUNDREDS GIVES 76500?

36. ## Maths

John spent 3/4 of his saving money for a birthday present and 1/7 of his saving money for clothes.He had only \$27 left.a)What fraction of his total money he had spent?What Fraction of his money has left?b)what is the total of his money did he save from the

37. ## Geometry,Math

Is my data correct? For package design I will use a cylinder. The Equation for the surface area of a cylinder is A = 2 π r h + 2 π r² . The equation for the volume of a cylinder is V = π r² h. I have chosen a cylinder for my cereal box because I

38. ## Algebra

Brandon flips two fair coins multiple times and records the frequency of the results in the following table. 50 trials|125trials|150trials HH 10 33 37 TH 9 31 38 HT 13 28 38 TT 18 33 37 DETERMINE THE EXPERIMENTAL PROBABILITY AND THEORETICAL PROBABILITY FOR

39. ## Math

In a standard deck of 52 cards whats the probability of getting a 2 or a 7 of diamonds.

40. ## teaching methodology

analyze points cutting across teacher centered and active teaching methods that should be used with care by the teacher.

41. ## maths

a curve is defined in the x-y plane by y=(x-1)(ax^2+bx+x) where a, b and c are constants. the curve touches the x-axis at x=1 and the line y=3x+6. a) find the values of a, b and c.

42. ## science

14. A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal force on the car is 6,000 newtons. What is the radius of the curve?

43. ## Chemistry

Put the following in order, from the one with the greatest impact on reaction rate to the one with the least impact on reaction rate: temperature, amounts of reactant, and presence of catalyst.

44. ## introduction to law

We have heard that south Africa has two kind of sources of law.what are those two sources of south African law?

45. ## integral calculus

A cylindrical tank of radius 3 ft length 8 ft is laid out horizontally .The tank is half full of oil that weighs 60 pounds per cubic foot. a.)determine the work done in pumping out oil to the top of the tank. b.)determine the work required to pump out the

46. ## cfgcfhbcncf

Water is flowing at the rate of 5km/hr through a cylindrical pipe of radius 7cm into a rectangular tank which is 50m long and 44m wide. In how many hours will the water level in7 cm of tank to filled

47. ## math

The equation y = 55x + 85 describes the amount of money a plumber charges, where y is the total amount he charges and x is the number of hours he works.

48. ## Chemistry

What is the concentration of 127 mL of solution made with .450 g of nickel (II) nitrate hexahydrate?

49. ## Chemistry

What mass of solid magnesium hydroxide is needed to neutralize .385 L of 2.5 M nitric acid?

50. ## Maths

chords PQ And RS Intersect At X Inside The Circle Centre T.If Angle PTR=64 Degree And The Minor Arc PR Is Twice The Minor Arc QS.Calculate QXS

51. ## maths

Sketch the graphs of f(x)and g(x) for -360

52. ## Chemistry

How to convert 4.6-10.5 micrograms/dL to nmol/L? The answer is 59-135 nmol/L, but I have no idea how to set it up to get that answer.

53. ## Spanish

Read the situation and fill in the blanks with the correct TENER expression. 1.You studied for a test, but your friend didn't and got a better grade than you. Tu_______________________.

54. ## Spanish

Read the situation below, then fill in the blanks with the correct TENER expressions. 1. I was so busy I never had time for lunch. Yo___________________. 2. We won the lottery. Nosotros_________________.3.The air conditioning is broken and it 100F.

55. ## Physics

What is the pressure at a depth of 80 m in the ocean? The density of seawater is 1. 03 × 10 3kg/m3. Please express your answer in units of atm.

56. ## Physics

How high (in meters) would the water rise in the pipes of a building if the water pressure gauge shows the pressure to be 252 kPa at ground level?

57. ## Physics

A barrel will rupture when the gauge pressure inside reaches 345 kPa. A vertical pipe is attached to the lower end of the barrel. The barrel and pipe are filled with oil, density of 1200 kg/m3. How long can the pipe be if the barrel is not to rupture?

58. ## economics

A description of the market form in which milk producers operate

59. ## Algebra

the length of a rectangle is 4 less than 3 times the width if the perimeter is 48 inches find the length and the width

60. ## math

There are 34 hats at a shop. There are 2 times as many scarves as hats at the shop. How many scarves are at the shop?

61. ## Chemistry

The air in a cylinder of a diesel engine occupies 1.00 L at 30 degrees celsius and 1.00 atm. What is the pressure in the cylinder when the air is compressed to 0.0714 L (14:1 compression ratio) and heats to 480 degrees celsius? When the fuel explodes in

62. ## math

Nicole swims 6 times as many laps as Evan. What multiplication equation compares the laps Nicole and Evan swim?

63. ## Chemistry

I posted this before and I know now to use P1T2=P2T1 but I was wondering what I would plug in as pressure and temp? just an example of one would be so great. In each of the four problem in this section, all gases are measured at the same temperature and

64. ## Math

Janet uses 3 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many pillows will she be able to decorate with one roll of ribbon? Will there be anything ribbon left over?

65. ## English

Hello. I will be very grateful for your advice. Which is correct: a) He had a new job which he was very proud of. b) He had a new job that he was very proud of. c) He had a new job he was very proud of. (I, for some reason, prefer a) Thank you very much

66. ## Math

suppose that when your friend was born your friends parents deposited \$4000 in an account paying 4.1% interest compounded quarterly. what will the account balance be after 15 years?

67. ## Chemistry

Ammonia gas is passed into water, yielding a solution of density of 0.93 g/mL and containing 18.6% NH3 by weight. What is the mass of NH3 per mL of solution.

69. ## Math

Six apples cost as much as four pears. Each pear costs \$4 more than each Apple. What is the cost of one pear?

70. ## Math (pre-celc 12)

Factor 2x^4-62x^2+60x I get: 2x(x^3-31x+30) 2x(x-30)(x^2-1) 2x(x-30)(x-1)(x+1) But that's wrong. It should be (I think): 2x(x-1)(x-5)(x+6) Please show me where I went wrong.

71. ## Latin

Translation Help: Where do Ablatives and Genitives fit into a Latin sentence? How do you tell if a prepositional phrase is with an Ablative or Accusative?

72. ## Math

Janet uses 3 feet of ribbon to decorate each pillow. The ribbon comes in 225-foot rolls. How many pillows will she be able to decorate with one roll of ribbon? Will there be anything ribbon left over?

73. ## Geometry

What is the height of a pole standing 20 feet from the base of pole and measure the angle of the elevation to the top of the pole to be 54 degrees what's the height of the pole

74. ## finance

Dharma Supply has earnings before interest and taxes (EBIT) of \$591,000, interest expenses of \$255,000 and faces a corporate tax rate of 36 percent. a. What is Dharma Supply's Net Income? b. what would dharmas net income be if it didn't have any debt? c.

75. ## Math

the walls and ceiling of a hotel room need to painted. The floor is 20-foot square and the ceiling is 8 feet high. What is the surface area of the walls and ceiling to be painted? Ignore any doors or windows

76. ## pre-algebra

The width of a rectangle is 30 centimeters. Find all possible values for the length of the rectangle if the perimeter is at least 768 centimeters.

77. ## Economics

Suppose the market demand and supply are given by Qs = -50 + 3P and Qd = 300 - 4P. What is the equilibrium price? ? is the answer 50

78. ## Math

If you picked one card from a standard deck of 52 playing cards, what would be the probability of picking the ace of spades?

79. ## Math

A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the

80. ## math or algebra

F2088nd the next three terms of the sequence. -2, -12, -72, 432. Possibilities are: 1. -1728 -6912 -27,648 2. -1728 -10,368 -62,208 3. -2592 -10,368 -41,472 4. -2,592 -15,552 -93,312 I have tried multiplying positive numbers times the negative but can't

A 40m deep well with radius 3.5m is dug & the earth taken out is evenly spead to from a platform of dimension 28m by 22m.find the heght of the platfoem?

82. ## math

Two mechanical shafts are joined together at their ends. Together their total is 18 and 2/9 ft. if one shaft is 13 and 4/7 ft long , how long must the other shaft be?

83. ## Math

Aaron's father is nine times as old as he is. One year ago, he was two years more than eleven as old as Aaron. Find Aaron's present age.

84. ## Science

What develops from the Allantois? (*note the umbilical cord is not an option for this question)

85. ## Science

name all structures that supply blood to the liver

86. ## Math

A farmer has dogs and chickens running around in his backyard. There are a total of 36 animals, and the farmer counts a total of 56 legs. The farmer can use a system of equations to determine how many of each animal there are. He claims that one of the

87. ## Mathematics

If the digit in unit's place of number is 7 then the digit in the unit's place of its cube is

88. ## science

Assume that some sugar was put into some rice by mistake. Design an experiment to separate the mixture. I'm not sure what I should do, can someone help me out?