# Questions Asked onJune 13, 2017

1. ## Math

Mr. Rodriguez is packing bags of snacks for his children’s lunchboxes. If he has 20 blueberries and 30 grapes, what is the maximum number of bags of snacks that he can pack so that each bag has the same number of blueberries and grapes?

2. ## Maths

Two boats A and B left a port C at the same time on different route .B travelled on a bearing of 150 degree and A travelled 8km and B had travelled 10km ,the distance between the Two boats was found to be 12km .calculate the bearing of A's route from C.

3. ## HVAC

Two HVAC/R technicians are discussing the tape used in HVAC/R repairs. Technician A says that cloth duct tape is preferred for use in attics. Technician B says that UL 181 tape is normally required for duct closing systems. Which one of the following

4. ## Physics

A rectangular track is 40m long 30m broad.A man starts walking from one corner to another . Find the distance travelled and displacement.

5. ## Maths

In an industrial area three factories give out sirens at an interval of 40 min, 1 hour anf 1 and a half hour. respectively. Find the time between the two simultaneously sounds of three sirens.

6. ## math

one hundred meters of fencing is available to enclose a rectangular area next to a river.Give a function A that can represent the are that can be enclosed, in terms of X.

7. ## math

Josh poured 38 gallons of water into 6 buckets. He poured the same amount into each bucket. How much water did Josh pour into each bucket?

8. ## Math

The number of boys in a class is 10 less than twice the number of girls. Find the total number of the students in the class, if the number of boys is 5 more than the number of girls.

9. ## Thermodynamics

400 g of water are emptied at 20 ° C in a vessel. The container is placed at Fire of a flame that gives it a certain amount of thermal energy of So that it takes 5 minutes for the water to reach a temperature of 90 ° C. If the vessel does not absorb

10. ## geometry

Jose is planning to spread fertilizer on his rectangular yard.His yard has a length of 40 ft and width of 25 ft.How much fertilizer does he need

11. ## english

What is the purpose of a response-to-literature essay

12. ## Physics

What is the polar notation for a vector that points from the origin to the point (0,5.00) ?

13. ## entrepreneurship

is increasing the entrepreneurial orientation of firm always a good thing? or are there circumstance or environment in which further pursuit and opportunities can diminish firm performance?

14. ## Chemistry

Each of the following mixtures is placed in a dialyzing bag and immersed in distilled water. Circle the substances that will be found outside the bag in the distilled water. a. KCl solution and glucose solution b. albumin solution (colloid) c. albumin

15. ## Lisa

A man leaves his front door, walks 330 m east and 320 m north, stopping at the edge of a cliff. He then takes a penny from his pocket and drops it from the cliff, which is 10 m high. What is the magnitude of the displacement (in meters) of the penny? I'm

16. ## Math

The number of boys in a class is 10 less than twice the number of girls. Find the total number of the students in the class, if the number of boys is 5 more than the number of girls.

17. ## physics

A galvanometer of resistance 50 ohm which gives a full deflection for 1mA is to be adapted to measure currents up to 5A. Calculate the resistance of the resistor required

18. ## Math

Estimate the value of 51 to the nearest whole number

19. ## Maths

If sina+7sinb=4 (sinc+2sind) and cosa+7cosb=4 (cosc+2cosd), how do I prove that 2cos(a-d) =7cos(b-c)?

20. ## Physics

What is the displacement from a starting position of (14.0,3.0)m to a final position of (-3.0,-4.0) m?

21. ## Math

A water cooler can hold 40 litres of water when full what fraction of water is left in the cooler if 16 litres is used?

22. ## Algebra

The height , h, in feet, of a bottle rocket is modeled by: H = -16t^2 +60t where t is the time in seconds. A. Factor the expression. B. What is the height of the rocket after 2 seconds? C. What is the height of the rocket after 3.75 seconds? Explain the

23. ## math

a falcon sitting in its nest sees a mouse on the ground in a nearby field. if the falcon flies directly to the mouse, at what angle with the ground will the falcon dive to catch the mouse if his nest is 200 feet in the air and the mouse is 400 feet from

24. ## Forensic science

The_____________spectrum is so complex it is considered to be unique: Visible Ultraviolet Infrared Microwave Fluorescence

25. ## algebra

When using the big hose and the small hose, Sam can fill her pool in 15 minutes. The small hose when used alone takes 60 minutes to fill the pool. How long would it take Sam to fill her pool using only the big hose? Don't understand how to set up equation.

26. ## Abnormal child psychology

Which of the following is true regarding late starters A. Deviant behavior is never due to inadequate parental monitoring? B. As a group, they have more deviance than any other group C. They develop aggression only as adults D. There's less research

27. ## Algebra 2

The value of a baseball card can be modeled by exponential decay. The value will decrease at a rate of 0.2% each yeah. The card was originally valued at \$250 in the year 2000. A- Use the exponential decay formula to write an equation to model the

28. ## English

1. He is master of the situation. 2. He is the master of the situation. ........ In dictionaries, I could see #1, not #2. Can't we use 'the' before 'master' here? 3. I met Father on the street. 4. I met father on the street. 5. I like Master very much. 6.

29. ## Math

3/4 of a group of tourists is twenty one people. 4/7 of the whole tourist group go to restaurant for lunch. How many people go to the restaurant?

30. ## Math

What is the largest seven digit number with the 8in the thousands place

31. ## Math

I am a 2-digit multiple of 50.What number am I?

32. ## chemistry

Write the anode reaction for the electrolysis of the concentrated zinc chloride solution using zinc electrodes

33. ## math

Ram deposited a certain amount in bank to earn a compound interest at a rate of 10%.The difference between interest on amounts in 3rd and 2nd year is 12100.what amount did ram deposit?

34. ## Math

Amira and Malika are counting their school books. Amira has four times 7 less than the number of Malik's books. If Amira has 29 books how many books does Malika have?

35. ## Math

A barber and his apprentice earn \$4900 in a week. The barber earns \$200 more per day than his apprentice. How much does the apprentice earn in one day?

36. ## math

If sina+7sinb=4 (sinc+2sind) and cosa+7cosb=4 (cosc+2cosd), how do I prove that 2cos(a-d) =7cos(b-c)?

37. ## phisical science

what is the role of mass in newtons second law?

38. ## Math

What is the greatest number that can be rounded off to 100?

39. ## Algebra

Is H=-4.9t²+vt+s the formula for a projectile motion, where h is height in meters t time in seconds and v velocity in meters per second and s start height in meters

40. ## Calculus

Hi, I have this question here that I'm not sure about. Any help is appreciated. Evaluate the integral from 1 to 3 of dx/(x-2). This seems like it should be really simple- is it 0?

41. ## Physics 1st paper

Two vectors of magnitude 8 unit each are acting at a point making an angle120 degree with each other.determine the magnitude

42. ## Maths

Express 14 upon root six ➖ root 5 ➖ root eleven with rational denominator

43. ## stat

wolf has an average weight of 44 lbs. with a standard deviation of 3 lbs. what percent of wolves weigh under 40 lbs.?

44. ## history

What were some of the strategies that the NAACP and others employed to influence President Roosevelt and the government?

45. ## Chemistry

The pressure changes from 760mmHg to 742 mmHG. When that occurs, the volume changes from 2.8L to 3.1L. The initial tempature is 20 celcious. What is the new tempature if miles remain the same? When I did this I subtracted 760 to 742 to get 18 and

46. ## science

Is there any effect in the mass of an atom if it becomes negatively charged? I know that atomic mass and mass number are two different things but the change in electrons (although may not affect the mass number) may affect the atomic mass, wouldn't it?

47. ## science

Any place inside a hachure line is a _____ elevation than the hachure line.

48. ## Chemistry

I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

49. ## physics

A mountaineer is doing a vertical rappel. She is using a big boulder/stone as her anchor. The Mountain guides association advises that in this type of situation, the boulder should be bigger than a refrigerator. The boulder should be sitting on a surface

50. ## physics

A ball is dropped downward after 1 sec its velocity is 20m/s another ball is dropped from the same point after 2 sec its velocity will be

51. ## Math

The ratio of the number of men to the number of women in a club is 3:7.There are 12 more women than men.How many members are there altogether?

52. ## Math

Joseph is 3/5 times as old as John.What is the ratio of John's age to Joseph's age?

53. ## Chemistry

I have this question from an old exam for review. I tried the question but can't get the right answers. An electron in an electronically excited hydrogen atom undergoes a transition from a 6d to a 2p orbital, resulting in the emission of a photon. The

54. ## Trigonometry

How do you simplify: (1/(sin^2x-cos^2x))-(2/cosx-sinx)? I tried factoring and creating a LCD of (sinx+cosx)(sinx cosx) (cosx-sinx), but cannot come up with the right answer. The answer is (1+2sinx+2cosx)/sin^2x+cos^2x,but I don't know how the book arrived

55. ## Math

t:3/4=7/8:15/16=

56. ## Algebra

The height , h, in feet, of a bottle rocket is modeled by: where t is the time in seconds. A. Factor the expression. B. What is the height of the rocket after 2 seconds? C. What is the height of the rocket after 3.75 seconds? Explain the solution.

57. ## Math

Suppose it costs c \$260 to purchase us \$243.23 .What is exchange rate ?

58. ## Math

Find the perimeter and area. a. (1,4), (4,5), (5,2) b. (0,–2), (0,2), (4,0) c. (0, 0), (2, 0), (4,–3)

59. ## Math

The tire on Frank Bike moves 75 inches in one rotation. how many rotations will the tire have made after Frank rides 50 feet

60. ## physics

the floor of a lorry is 3m high, a plank 5m longis used as an inclined plan to raise some leading the maximum effort required to raise 200N load up the plane

61. ## physics

the floor of a lorry is 3m high, a plank 5m long is used as an inclined plan to raise some leading the maximum effort required to raise 200N load up the plane

62. ## Calculus

two sides of a triangle have lengths 15 m and 20 m. the angle between them is increasing at a rate of pi/90 rad/s. At what rate is the area changing when the angle between the two given sides is pi/3 Can't seem to figure it out!

63. ## Geometry

Write the General form equations for the following circles: 1. A circle with center (1, -6) and radius 4 2. A circle with center (6, 8) and radius 10 3. A circle with center (0, 3) and radius 2√3 4. A circle with center (-0.5, 5.5 ) and radius 8.4 5. A

64. ## Physics

What effect do the following forces have on point? 100N, 30 degrees E of N

65. ## Geometry

An equilateral triangle, ABC, has two of its vertices, A and B, below the x-axis; has the third vertex C above the x-axis, and contains the points (0,0) on segment AC, and (0,1) on segment BC. How long is the path traced out by all possible points C to two

66. ## math

In a particular tour group, 30% of the tourists are men, and there are 20 more women than men. How many tourists altogether are there in the group? Explain your reasoning.

67. ## English

To letter write news editor such children sad plight and up lift

68. ## chemistry

when 1.00kg of copper reacts, 3.12kg of silver is recovered. what is the percentage yield?

69. ## chemistry

The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5

70. ## Math

Since the opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since the opening night. On

71. ## Calculus

(1,1)(2,1)(2,3) mirror around y-axis & revolve solve with Shell and washer please and thank you

72. ## chemistry

The reaction of hydrochloric acid and sodium hydroxide is exothermic HCl +NaOH --> NaCl + H2O In one experiment, a student placed 50.0 mL of 1.00 M HCl at 25.5 oC in a coffee cup calorimeter. To this was added 50.0 mL of 1.00 M NaOH solution, also at 25.5

73. ## Calculus

(1,1)(2,1)(2,3) mirror Revolve around y-axis. solve with Shell and washer please and thank you! Made a correction for washer would R(x)=2x-1 ? what about r(x)

74. ## Physics 11

A 4.00 kg block is accelerated along a level surface at 3.00 m/s^2. The applied force is 20.0 N. What is the coefficient of friction between the block and the surface?

75. ## Physics 11

A 15 kg block i

76. ## chemistry

why the melting point of iron is greater the that of sodium?

77. ## Physics 11

A 15 kg block is sitting on a level surface. The coefficient of friction between the block and the surface is 0.32. A horizontal force of 25 N is then applied to the block. What is the acceleration of the block while the horizontal force is being applied?

78. ## Algebra

A student scored 81 and 95 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 85 and 90.

79. ## Mats

Three persons steps off from a pint. Their steps measure 40 cms, 42 cms and 45 cms respectively. At what distance will they be together again if their speeds are same?

80. ## English

What does the child think about his drawing in the poem

81. ## physics

An object with a height of 12cm is placed 4cm in front of a concave mirror whose radius of curvature is 16cm.

82. ## math

find the next number in the following sequence; 3,5,7,11,_ #anyone to help me plz #

83. ## geometry

An equilateral triangle ⌂ABC has two of its vertices below the x-axis, has the third vertex C above the x-axis, and contains the points A=(0,0)and B=(1,0) on its sides. How long is the path traced out by all possible points C, to two decimal places?

84. ## Math

Amira and Malika are counting their school books. Amira has four times 7 less than the number of Malik's books. If Amira has 29 books how many books does Malika have?

85. ## Math

A barber and his apprentice earn \$4900 in a week. The barber earns \$200 more per day than his apprentice. How much does the apprentice earn in one day?

86. ## Math

A group of 45 people decide to rent a bus for a trip. They divide the cost equally. When five of the people decide not to go on the trip the rest of the people pay \$10 more each. How much does the bus cost?

87. ## Math

John walks three times as far as Smith, and Wilson walks twice as far as John.Find the distance that John walks, if the three friends walk 4500m in total.

88. ## physics

Two instances during which the heating effect of current is not required

89. ## Math

I am an even number less than 100.One of my factory is 13.I am made two consecutive digit.What number am I?

90. ## Calculus

S=integral sign S3x(4-x^2)^1/2 use trig substitution I am confused I got x sin(sin^-1(x/2))+cos(sin^-1(x/2))

91. ## Geography, life science, maths lit,history

Research for careers of the above subjects, it happened that i want to be a Doctor, but m not sure about this subjects

92. ## English

1. He is a good deal stronger than Sam. 2. He is lots stronger than Sam. 3. He is far and away stronger than Sam. ............................... Are they all grammatical?

93. ## English

1. He is far the best boy in his class. 2. He is by far the best boy in his class. 3. He is far and away the best boy in his class. ............ Are they all grammatical?

94. ## Math

Nadia and Manar together have 140 walnuts. If Nadia gives fifteen walnuts to Manar then they will each have an equal number of walnuts. How many walnuts does Manar have at the beginning?

95. ## Math

On a salmon farm, pool A contains 310 salmon and a second pool B contains 90 salmon. The number of salmon in pool A is decreasing by 15 salmon per month. The number of salmon in pool B is increasing by 15 salmon per month. After how many months will there

96. ## Math

Smith has \$360. He spend 1/9 of his money first, then spends another 2/9 of the original amount. How much money does Smith have left?

97. ## Math

3/5 of the animals on a form are goats and the rest are sheep. Find the number of goats if there are 32 sheep on the farm.