Questions Asked on
February 17, 2014

  1. Grade 12 Math Please help!!

    Please can anyone answer this which I have posted previously? Anyone with knowledge of this area of maths? Thanks in anticipation. :) Formula given: The decibel (dB) scale for measuring loudness, d, is given by the formula d = 10 log base ten(I X 12 to the

    asked by Donna
  2. biology

    what is hypertonic and how does it happen

    asked by mohammed
  3. Algebra

    $730 at 5.5% compounded quarterly for 6 years

    asked by Tara
  4. Physics

    A 55 kg box is pulled with constant speed across the floor with a rope that is at an angle of 40 degrees above the horizontal. If the tension in the rope is 125n what is the coefficient of friction between the box and the floor?

    asked by Brenda
  5. Socials

    Temperature decreases approximately 1degree Celsius for each 150 metres increase in altitude. 1. The temp at sea level is 25 degree Celsius A.) what will the temp be 1200m up the mountain? B.) what will it be at the top? (2250m) 2. The temp at the top of

    asked by Roma
  6. Please Help with 2 Physics Problems???

    1) In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force FA of magnitude 207 N, and Charles pulls

    asked by Tyler
  7. Chemistry

    write a sentence for the following reaction PCl5(s)=PCl3(s)+Cl2(g)

    asked by Janile
  8. math

    How business mathematics can help you in making decision about investment in a business.

    asked by fatima
  9. English

    What is a scan

    asked by Germina
  10. engineering

    . A platform with boat weighs 10,000 N. Four cables are attached to the platform as shown; the edges of the platform are always a horizontal distance of 2 m from the pulleys. As the platform rises smoothly and evenly, the length L of the cables decreases

    asked by JJ
  11. Trig

    A straight road slopes upward 14 degrees from the horizontal. A vertical telephone pole beside the road casts a shadow of 60 feet down the road. if the angle of elevation of the sun is 55 degrees, what is the height of the telephone pole?

    asked by Keserie
  12. math

    The dining room at Monticello, Thomas Jefferson's home in Virginia is 216 inches by 222 inches. Of the following , which size rug would be similar in shape to the dining room?

    asked by Anonymous
  13. physics

    1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the

    asked by james
  14. help

    how to post a link with jksha knowing ?

    asked by Mary
  15. Math

    If an observer stands at a certain point in the same horizontal plane as the base of a radio tower. the angle of elevation of the top of the tower is 13deg 15'. If the observer moves 156.25 feet towards the tower, the angle of elevation is 18deg 10'. Find

    asked by McKenna Louise
  16. Math

    Points M and N are separated by an obstacle. In order to find the distance between them, a third point P is slected which is 120 yards from M and 150 yeards from N. The angle MPN is measured to be 80deg10'. Find the distance from M to N.

    asked by McKenna Louise
  17. geometry circles equation i dont know

    please he lp Find the equation of a circle circumscribes a triangle determined by the line y= 0 , y= x and 2x+3y= 10 this is my first timein this website please help me need it badly my teacher will be angry at me so much

    asked by Mary
  18. Math

    Lighthouse B is 7 miles west sof lighthouse A. A boat leaves A and sails 15 miles. At this time, it is sighted from B. If the bearing of the boat from B is N62degE, how far from B is the boat?

    asked by McKenna Louise
  19. speech

    I have to do an explanatory speech. i have to choose a discovery or innovation that people know the general idea about but don't know anything beyond that. does anyone have any ideas? Just as an example of the type of speech im looking for you could do :

    asked by sara
  20. Calculus

    integral(8&4) y dy/(y^2-2y-3)

    asked by Anonymous
  21. Math

    Elimination X+2y=5 -3x+6y=15

    asked by Taylor
  22. Grammar Answer Check

    Identify the underlinded conjunctions in the following excerpts from "The Interlp[ers" as "coordinating," "correlative," or "subordinating." 1. ...a man stood one winter night watching _and_ listening, _as though_ he waited for some beast of the woods to

    asked by Anonymous
  23. Editorial (Writeacher)

    Thank you, Writeacher, for responding to my post. I truly appreciate your it. However, do you think the editorial that I have written requires any other improvements?

    asked by Anonymous
  24. Geometry Circles Equation

    Find the equation of a circle circumscribes a triangle determined by the line y= 0 , y= x and 2x+3y= 10 I beg you

    asked by Mary
  25. Math

    When solving a system algebraically how can you tell if there is no solution

    asked by Taylor
  26. Math

    When solving a system algebrically how can you tell if solution is the equation of the line

    asked by Taylor
  27. Story problem

    The difference of two complementary angles is 18. What is the measure if the two angles

    asked by Taylor
  28. Story problem

    The perimeter of a rectangle garden is 104 ft. The length of the garden is 8 less than twice the width. What are the dimensions of the garden.

    asked by Taylor
  29. GEOMETRY CIRCLES EQUATION

    Find the equation of a circle circumscribes a triangle determined by the line y= 0 , y= x and 2x+3y= 10

    asked by Mary
  30. Someone please check my Statistic

    A basketball player makes 80% of her free throws. Recently during a very close game, she shot 5 free throws near the end of the game and missed 3 of them. The fans booed. What is the probability of her missing 3 (or more) free throws out of 5? Set up and

    asked by BOWERSHE
  31. stats

    A researcher conducted an experiment on the effects of a new “drug” on depression. The researcher had a control group that received nothing, a placebo group and an experimental group that received the “drug”. A depression inventory that provided a

    asked by brandi
  32. Story problem heellp

    The difference of two complementary angles is 18. What is the measure if the two angles Hint complementary angles sum to 90 degrees

    asked by Taylor
  33. Science

    Which of the following describes how matter moves between producers, consumers, and decomposers in an ecosystem A) One-way flow from producers to consumers to decomposers B) One-way flow from decomposers to consumers to producers C) Cyclic flow from

    asked by Nicole M
  34. English

    In which of the following sentences is the underlined word a past participle?

    asked by Carmen
  35. U.S History - Pls check my answer, tks :)

    Document A - President Jackson’s First Annual Message to Congress (December 7, 1829: Our conduct toward the Indians is deeply interesting to our national character. Surrounded by the whites with their arts of civilization the whites have destroyed the

    asked by Cassidy
  36. math

    Tim works part-time at a retail store. His salary varies directly by the number of hours worked. Last week he earned $99.45 for 13 hours of work. This week he earned $160.65.

    asked by Anonymous
  37. logic

    In a soccer tournament between four teams A,B,C,D wich was free for all the scores were A 4 points B 4 points C 3 points D 1 point In this tournament the winner gets 2 points, the draw 1 point the looser 0. It is known that each team has a goal so. 1 The

    asked by Jhon
  38. Math

    Perimeter of rectangle = 2*l+b. Area = l*b. If l = 1m, b = 55cm. Find area and perimeter

    asked by SAM
  39. logic

    100 days after a sunday will be a day a Sunday b Tuesday c thursday d monday

    asked by Jhon
  40. math

    if the selling price of 16 water bottels is equal to the cost price of 17 water bottels ,find the gain per cent earned by the dealer.

    asked by ekta
  41. math

    the cost price of 12 candles is equal to the selling price of 15 candles. find the loss per cent

    asked by ekta
  42. math

    by selling 125 cassettes, a man gains an amount equal to the selling price of 5 cassettes. find the gain per cent

    asked by ekta
  43. math

    oranges are bought at 6 for rs10 and sold at 4 for rs 9. find the gain or loss per cent.

    asked by ekta
  44. Physics

    A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. If the ball leaves her club with a velocity of 46.0 m/s at an angle 0f 35.0º above the ground, find the time that the ball is in the air

    asked by Jacob
  45. English

    someone who is disgruntled likely feels 1- optimistic 2- generous 3- depressed 4- irritated my answer is D

    asked by Steve
  46. Physical Science

    Which has characteristics similar to a scientific model? A. a toy train B. a deep-sea submersible C. a planetary rover D. the Brooklyn Bridge

    asked by dark1
  47. logic

    a survey of three marks of soda has -of 100 people 83 drinks at least 1 of 3 marks -54 just drink 1 -19 drinks 2 of 3 between the people the % that drink the 3 are a 15% b 12% c 10% d 24%

    asked by Jhon
  48. logic

    CLaudia has 4 task to do go to the market, study, clean , sport it is known - go to the market if study - study if she does not clean - if she does not clean then she goes to the market a 15% b 12% c 10% d 24%

    asked by Jhon
  49. logic

    a team of Andres Bruno carlos Daniel and Esteban participated in a tennis doubles tournament so two of one team play against other two It is known that Andres participated in a game Bruno in 2 carlos in 2 Daniel in 3 and Esteban in 4 then the amount of

    asked by Jhon
  50. Story problem help Damon

    Stan bought 3 boxes of fruit loops and 2 boxes of kix for $15.05. One box of fruit loops cost $0.60 more than one box of kix. How much does one box of each type of cereal cost

    asked by Taylor
  51. Physical Science

    No system is completely closed off from its surroundings. Which represents a system that is almost completely closed? A. a capped soda bottle B. a wood-burning fireplace C. a washing machine D. a pot of boiling water I believe it is A.

    asked by dark1
  52. Calculus, Surface Area

    An open rectangular box (no top) has a square base with side 10 cm and height 16 cm. The surface area is:

    asked by Anonymous
  53. Calculus, Surface Area Pt.2

    The base costs 0.9 cents/square cm, the front costs 0.8 cents/square cm and the sides and back cost 1.3 cents/square cm. The cost of the material to make the box is : Cost = ?

    asked by Anonymous
  54. Calculus, Surface Area Pt.2

    The base costs 0.9 cents/square cm, the front costs 0.8 cents/square cm and the sides and back cost 1.3 cents/square cm. The cost of the material to make the box is : Cost = ?

    asked by Anonymous
  55. Physics

    four similar cars having same mass are running at the same speed on the same speed and when breaks are applied at the same time the cars cover distance of 5m, 5.5m, 4.8 and 5.2 m. In which car the friction between the brake pads and disc is maximum

    asked by Sandhya Rajesh
  56. Math 5th grade

    Look for a pattern. Have a rectangle with number 10, 16 and 23 in the corners.the circle in side with 9, 12 and 24. Place the numbers from 8 to 26 either inside or outside the circle according to the pattern shown. Please help!!!

    asked by Tien
  57. Algebra

    The cost of producing cell phones is represented as C=mx+b, where m is the marginal cost, x is the number of phones produced, b is the fixed cost, and C is the final cost. a. If the fixed cost is $75 and the marginal cost is $8, write the cost equation. b.

    asked by KevinJ
  58. Story problem

    A group of 52 people attendance ball game. There are three times as many children as adults in the group. Write a system of equations that you can use to solve this problem where a is the number amd C is the number of children in the group. How many

    asked by Taylor
  59. Math

    If 1600 square centimeters of metal is available to make a box with a square base and an open top, find the largest possible volume of the box. Volume = ?

    asked by Anonymous
  60. Problem solving

    A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a

    asked by Taylor
  61. MATH

    A landowner wants to fence in a rectangular area of 75000 square metres and divide it into three parts with two parallel fences both parallel to one side of the rectangle. Each part will have a different grazing crop for the herds. What is the shortest

    asked by Rob
  62. Mathematics

    An rectangular area of 25 square meters, around an ancient historical site, is to be fenced to protect the artifacts. The sides with length x cost $ 34/ m and the other two sides cost $ 26 /m. a. Write an expression for the cost as a function of x. C(x) =

    asked by Sarah
  63. Problem solving

    A group of 52 people attendance ball game. There are three times as many children as adults in the group. Write a system of equations that you can use to solve this problem where a is the number amd C is the number of children in the group. How many

    asked by Taylor
  64. Problem solving

    A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a

    asked by Taylor
  65. Math

    Consider the function f(x) = -2 x^3 + 36 x^2 - 162 x + 2. There are two critical points, A and B where A < B: A = and B = f''(A)= f''(B)= Therefore f(x) has a relative at A (MAX or MIN) and a relative at B (MAX or MIN).

    asked by Andrew
  66. Math

    An open rectangular tank (no top) with volume 11 cubic meters has a square base. The base has side x m. Write an equation for the surface area of the tank as a function of the length x. Surface Area = ? b. The base costs 1.1 cents/square m and the sides

    asked by Andrew
  67. math

    In New York a taxi costs 72 cents for the first 1/10th of a mile and 15 cents for every additional 1/10 mile. How much does it cost to drive 6 miles? Set up and solve? Thanks

    asked by ava
  68. algebra

    The cost for an electrician is $135 for 3 hours. A 7 hour repair costs $315. Showing your calculations, determine the price of a 12 hour repair.

    asked by Anonymous
  69. Math problem

    The modern grocery has cashews that sell for $4.00 a pound and peanuts that sell for 2.50 a pound. How much of each must Albert the grocer mixed to get 60 pounds of mixture that he can sell for three dollars per pound? Express the problem as a system of

    asked by Taylor
  70. Math

    A rental car agency charges $15 per day plus $.11 per mile to rent a certain car. Another agency charges $18 per day plus 8 cents per mile to rent the same car. If they rent the car for one day how many miles will they have to be driven for the cost of a

    asked by Taylor
  71. Math : Probability

    When tossing 4 coins,what is the chance of getting exactly 2 heads? When tossing 4 coins, what is the chance of getting at least 2 heads?

    asked by Anonymous
  72. Helpppppp

    The modern grocery has cashews that sell for $4.00 a pound and peanuts that sell for 2.50 a pound. How much of each must Albert the grocer mixed to get 60 pounds of mixture that he can sell for three dollars per pound? Express the problem as a system of

    asked by Taylor
  73. math

    A manufacturer produces a 4-cup and 8-cup coffee maker. The 4-cup maker takes 6 hours to produce and the 8-cup takes 9 hours. The manufacturer has at most 500 hours of labor per week. a. Write an inequality to represent the number of each type of coffee

    asked by bob
  74. Last math problem help

    Mr. Jarvis invested a total of 10,437 in two savings accounts. One account earns 8% simple interest per year and the other earns 9% simple interest per year. Last year the two investments earned a total of $849.52 in interest. Write a syste of equations to

    asked by Taylor
  75. Computers

    What does the program 7-Zip do for the files on your computer? A. It provides security for your computer when you're not using it. B. It closes Windows when you're working in other programs. C. It helps you move quickly through a variety of Internet tasks.

    asked by Lilly
  76. Phsical Science

    Which one is the best explanation of energy? A. making transformations B. the ability to do work C. conservation of power D. measuring joules I think it is B.

    asked by dark1
  77. chemistry

    I am stuck on this one and was wondering if anyone can help me out! Why does sodium nitrate (166.5) have a bigger molar entropy than sodium bromide (86.8)? Thanks!

    asked by devon
  78. college chemistry

    The solubility of Ar in water at 321.9 torr is 0.02538 g/L. What is Henry's Law constant (M/atm) for Ar in water?

    asked by hershi
  79. Physical Science

    What form of energy provides power for a gas stove? That's Chemical Energy, right?

    asked by dark1
  80. Physics

    A container contains 15 liters af water at 96 celsius. A 1 kg of ice cube at -20 celsius is dropped into the water. No heat is lost to the surroundings. What will the final mixing temperature be?

    asked by Thermodynamics
  81. Polyhedren Question, pls help asap!!!!!

    ok, i really don't know this one and i cant post the pic of the triangle, so im gonna go to extremes here if u want to find the pic. I think it is a triangular prism though... 1. What is the shape of the bases for the following polyhedron? (triangle prism,

    asked by TTR+S&lt;3
  82. Math 5th grade

    Sorry for re-post. Damon answered but I do not see any relate between number.The question is: Look for a pattern. Have a rectangle with number 10, 16 and 23 in the corners.The circle inside rectangle with 9, 12 and 24 inside circle. Place the numbers from

    asked by Tien
  83. Ap chem-Bases

    Calculate the pH of a 0.2M solution of Triethylamine, (C2H5)3N, with a Kb of 4.0x10^-4

    asked by Jessica
  84. algebra

    If Jackson drops a ball from a building at the height of 80 meters. What is the height of the ball to the nearest tenth of a meter exactly 3 seconds after he drops the ball.

    asked by Kathy
  85. ART/101

    Hello I am having a bit of trouble with my DQ for this week and I was wondering if anybody could help me? The DQ for this week is: This week we are looking at symbolism and given the example of a Treaty signing. Tell me what you think about the entire

    asked by Kala
  86. English

    Can you check if there's grammar mistakes in this monologue, if there is, can you correct it for me. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I had

    asked by Tommy
  87. chemistry

    how many moles of vapor can be produced for 52 g of O2

    asked by mary
  88. Calculus II

    show that; given any three non-collinear points (x1,y1), (x2,y2), (x3,y3) there is a parabola p(x)=Ax^2+ Bx + c , containing the three points.

    asked by Chelsea
  89. Science

    Which statement best describes the composition of magma?

    asked by James
  90. Physics

    A ball is thrown upward in two dimensions with an initial speed of 17 Zlugs per mega handle(made up) near the surface of the planet earth. What will be the y component of the balls velocity at the peak of its trajectory?

    asked by Michelle
  91. Physics

    A cannon shoots a cannonball with an initial speed of 25 m/s at an angle 13. 1. What is the x component of the cannonballs initial velocity Vox? 2. What is the y component of the cannonballs initial velocity Voy? 3. What will be Vy, the y component of the

    asked by Michelle
  92. Physics

    A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y

    asked by Michelle
  93. Physics

    Some insects can walk below a thin rod (such as a twig) by hanging from it. Suppose that such an insect has mass m and hangs from a horizontal rod as shown in the figure, with angle θ = 37°. Its six legs are all under the same tension, and the leg

    asked by Robin
  94. Marketing

    How would various company objectives affect the development of a marketing mix for a new type of internet browser software? If this company were just being formed by a former programmer with limited financial resources, list the objectives the programmer

    asked by Janet
  95. Marketing

    Explain how a firm's objectives may affect its search for opportunities.

    asked by Janet
  96. world history

    Which technologies have been pivotal in the development of the Information Age? To what extent did the industrial revolution create the foundation for modern technologies?

    asked by Amber
  97. Finance

    Templeton Extended Care Facilities Inc, is considering the acauision of a chain of cemeteries for $450 million. Since the primary asset of the business is real estate, Templeton management has determined that they will be able to borrow the majority of the

    asked by Daphne
  98. Life.science

    In the moss, the sporophyte is sometimes referred to as a 'semi-parasite'. Explain why this is so.

    asked by Lesego
  99. Physics

    You are going to toss a rock straight up into the air by placing it on the palm of your hand(you are not gripping it) then pushing your hand up very rapidly. Draw a free body a diagram for the rock for each situation, and write the sum of equation based on

    asked by George
  100. Math

    What is 3.0801^9? I have done it on a calculator and I got 24950.7354056, but I have seen other things about it, and those things say 24948.5693. Which is the correct answer. I really do not know, but considering the answer that I got on the calculator, I

    asked by Brady
  101. physics

    a rope breaks when the tension exceeds 30.0n. what is the minimum acceleration downard that a 60.0n load can have without breaking the rope

    asked by Anonymous
  102. Ethics

    1. If you were to argue that although a person with an IQ of 60 cannot be a world-renowned physicist, she or he still has the freedom to choose within limits of what is physically, psychologically, and socially possible, you would be presenting which of

    asked by Any
  103. Math

    A rectangular garden is surrounded by a roll of chicken wire fencing to keep out the rabbits. The dimensions of the garden are 2.6 m by 5.1 m. The area enclosed by the fence is ______ square metres. The length of the fence is ____ m. The following year the

    asked by Imran
  104. science

    How can atoms of two elements that have a different number of protons have the same charge? A.by also having a different number of neutrons B.by also having a different number of electrons C.by having the same mass number D.by being the same size atoms

    asked by victoria
  105. chemistry

    Except for rubidium and caesium,___

    asked by izekor
  106. Ethics

    1. Modern-day determinism tends to be based in: A. religious teachings. B. science. C. the idea of predestination. D. intentionalism. is it B 2. Which of the following is theorized to play an important role in imitative behavior and our capacity to relate

    asked by Any
  107. science

    Which statement best describes the inertia of an object? A.Inertia is the tendency of an object to resist a change in its motion. B.Inertia is the weight of an object. C.Inertia is what determines how fast an object will fall. D.Inertia measures how hard

    asked by victoria
  108. science

    For which surfaces will fricion be greatest when a block of wood slides across it

    asked by MARRY
  109. science

    Which experiment would most directly reveal the inertia of an object? A.weighing a bottle on a digital scale B.moving a soda can back and forth to determine whether it is empty C.dropping a ball of paper and measuring how fast it falls D.throwing a ball to

    asked by victoria
  110. Math

    2x√3x*2√x i was wondering how to simplify this

    asked by Q
  111. Geometry

    If a cylinder’s radius and height are each shrunk down to a third of the original size, what would be the formula to find the modified surface area?

    asked by anon
  112. science

    WHICH OBJECT WILL REQUIRE THE MOST FORCE TO TOSS IT 2 METERS

    asked by MARRY
  113. Title

    Hi I need help thinking of a title for my graphic novel. It is about India and its exploitation of children. Could someone help me think of a cool title and an idea to make the title look unusual. Like maybe a bleed or something. Thanks!!

    asked by Serena
  114. Math

    2x(√3x^2)*2√x how would you simplify this?

    asked by Q
  115. english

    Can someone please help me make an imitation sentence for the following 2 sentences? 1.) The little shack, the rattling, rotting barn was gray-bitten with sea salt, beaten by the damp wind until they had taken on the color of the granite hills. 2.)The

    asked by Taylor
  116. Physics

    A 2473 kg elephant is walking at 3 m/s on a flat surface. How much kinetic energy does he have? Answer in Joules or J

    asked by Help
  117. Ethics

    1. If we eliminate free will completely, we would also be eliminating: A. the possibility of genetic bases for human behavior. B. the value of modern science. C. moral responsibility. D. excuses for criminal conduct. is it C 2.

    asked by Any
  118. science

    WHICH BLOCK WILL HAVE THE GREATEST CHANGE IN MOTION

    asked by MARRY
  119. first aid

    Two teams of nine members each engage in a tug of war. The first team's members have average masses of 69 kg and exert average forces of 1350 N horizontally. The second team's members have average masses of 74 kg and exert average forces of 1356 N

    asked by Anonymous
  120. science

    WHICH BLOCK WILL HAVE THE GREATEST CHANGE IN MOTION. A RED B BLUE C GREEN D YELLOW

    asked by MARRY
  121. science

    How do two isotopes of the same element compare with each other? A.They have the same number of protons but a different number of electrons. B.They have the same mass number but a different number of protons. C.They have the same mass number but a

    asked by victoria
  122. Physical Science

    In what direction does heat flow? Why do particles of matter transfer thermal energy in this direction?

    asked by Alex
  123. science

    A person who weighs 600 newtons on Earth would weigh only 100 newtons on the Moon. Which statement best explains why? A.The circumference of Earth is larger than that of the Moon. B.The density of Earth is greater than that of the Moon. C.The mass of Earth

    asked by victoria
  124. Math

    I need 2 quartic+ functions that have a complez zero.

    asked by Lett
  125. Math

    What is 62.8759 divided by 1.4? Please help! I will appreciate it if you will help. Thank you if any of you help.

    asked by Brady
  126. science

    TOSS EACH OBJECT A DISTANCE OF 2 METERS.A)METAL WASHER 1.5 B)PLASTIC DISK 34 C)ROCKS 16 D)WOODEN BLOCK 22. WHICH ONE IS CORRECT

    asked by MARRY
  127. Calculus II - Simpson's Rule

    Find the Error resulted from approximation by Simpson's Rule: integral (from 0 to 1) sqrt( 1+x^3) dx ... compute the result for n=8

    asked by Chelsea
  128. Calculus

    I need help finding the derivative of √3x/(x^2-4) at x=3

    asked by Annie
  129. Physics

    A 2473 kg elephant is walking at 3 m/s on a flat surface. How much kinetic energy does he have? Answer in Joules

    asked by Help
  130. Calculus II - Trapezoidal Rule

    Find the error resulting from approximation by Trapezoidal Rule: integral (from 0 to 1) sqrt(1+ x^3) dx .... compute the results for n=8

    asked by Chelsea
  131. High school

    ÄHvap of acetone and cyclopropanol

    asked by Carlos
  132. phsics

    A 75 kg man weighs 735 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 15% of his body weight?

    asked by Anonymous
  133. physics

    The Achilles tendon is attached to the rear of the foot as shown in (Figure 1) . A person elevates himself just barely off the floor on the "ball of one foot." Assume the person has a mass of 80kg and D is twice as long as d.Find the tension FT in the

    asked by may
  134. Geometry

    The volume of a square pyramid is equal to _____ times the volume of a cube where the bases are the same, but the square pyramid is half the height of the cube.

    asked by anon
  135. Physics

    A pot containing 2 liters of 5 celsius water is putt on a stove that is 1500 watts. Now the stove is on. How long time will it take for all of the water to boil from the pot? (turn into vapour). No heat is lost to the surroundings.

    asked by Thermodynamics
  136. U.S. History

    Which invention was the basis for the major developments in American transportation? a.steam engine ** b.wagon axle c.canal lock d. gold spike

    asked by Anonymous
  137. history

    With the growth of Spanish colonies in the New World, _______ and _______ merchants became important players in the Atlantic slave trade. i was thinking chinese and british, but also portugese. i am very confused... please help

    asked by Victoria
  138. history

    i still need help with this question! In England, _______ housed totally destitute people at public expense and resembled the conditions of the first _______.

    asked by Victoria
  139. Math - Check My Answers

    Please help me with the following(there is 9 problems so be prepared): 1.2^(1/3)∙4^(1/3) I think it is 4 for the answer. 2. 11^(1/2)∙11^(1/2) I think it is 11 for the answer. 3. 2^(1/2)∙2^(1/2) I think it is 2 for the answer. 4. 3^(1/3)∙9^(1/3) I

    asked by Brady
  140. Physics

    If the fundamental frequency of an 70 cm long guitar string is 470 Hz, what is the speed of the traveling waves?

    asked by Catherine
  141. world civilizations

    What contributions did the Egyptian made to literature

    asked by Joe
  142. math fractions and decimals

    the decimal has a digit greater than 4 but less than 8 in the hundreds place, what could the decimal be?

    asked by destiny
  143. Language arts

    What is an indefinite pronoun?

    asked by Tina
  144. Science

    Acetylene gas c2h2 reaction cac2+2h2o. C2h2+Ca(oh)2 how many moles of cac2 needed to prepare 10.0 g c2h2 please show work and answer soon final question on big test review

    asked by Victor
  145. Math help

    Someone please help me out on this polynomial!!! 2x(squared) y4(4th power)(2x(squared)y+2xy-3x(5thpower)y(3rd power)

    asked by Anonymous
  146. Math

    Farmer wants to enclose a rectangular area that is 600 sq. ft. He is using his barn for one of the sides. The barn is 30 feet long and he does not want the pen to extend longer than the barn. How much fencing will need to be purchased?

    asked by Cindy
  147. Social Studies

    Where is Fishers located in Indiana? Central, North, or South side?

    asked by Anonymous
  148. physics

    • If you use a cart with half the mass, you reach _______final speed. • If you use half the force, you reach ______ final speed. • If you push twice as long, you cover _______ distance during pushing. • If you use a cart with half the mass, you

    asked by Ted
  149. Lang. Arts//Reading

    What is the theme of the book "Kingdom Keepers", Disney After Dark? It is the first book and it is written by Ridley Pearson.

    asked by Halle
  150. physics

    You exert a larger force on the cart than the cart exerts on you. T/F When you stop pushing, the cart will continue moving at the same speed. T/F While the cart is pushed, it has a constant acceleration. T/F

    asked by Ted
  151. Algebra

    How do I solve for u? (u/1-u) + 1 = 1.5

    asked by PPC
  152. Chemistry Help Please!!!

    1) Boric acid, H3 BO3, is a triprotic acid that dissociates in three reactions. The first dissociation step is: H3BO3 ⇌ H^+ + H2BO3^-, K(a1) = 7.3 x 10^-10; the second dissociation step is: H2BO3^- ⇌ H^+ + HBO3^-2, K(a2) = 1.8 x 10^-13; and the third

    asked by Mello
  153. Chemistry

    in a chemical reaction, 5.2 grams of magnesium reacts with hydrogen nitrate. Calculate the amount of magnesium nitrate that is produced and the amount of hydrogen nitrate needed to react with the magnesium.

    asked by Anonymous
  154. Physics

    For a given initial projectile speed Vo, calculate what launch angle A gives the longest range R. Show your work, don't just quote a number.

    asked by Tim
  155. Physics

    For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees. For what other launch angle will the projectile have the same range (assuming the same initial projectile speed)? Without the use

    asked by Tim
  156. Chem Help :(

    What is the pH of a solution in which [H3O^+] = 6.8 x 10^-5 M? What is the pH of a solution in which [OH^-] = 2.5 x 10^-9 M?

    asked by Tom
  157. math

    show the work for these problems 4 2/3-1 1/6 = and 10 1/2-6 2/5=

    asked by sherm
  158. Physics

    Assume that you take data on the projectile range for a variety of different launch angles A at a fixed initial velocity Vo. You would like to plot your data to see if the range formula discussed in the introduction is supported by the data. The easiest

    asked by Tim
  159. math pre algebra

    i need help with linear functions with ways to remeber them easier

    asked by mackenzie
  160. math

    3x+2x+y+2y

    asked by betty
  161. English- Poetry

    Please help... In this unit, you read William Wordsworth's poems "Lines Composed a few miles above tintern abbey," "The World is Too MUch with Us," and "I Wandered Lonely as a Cloud." How are these poems representative of the Romantic Period?

    asked by Kierra
  162. Biology help

    Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?

    asked by Anonymous
  163. MATH

    THE PRODUCT OF SIX AND A NUMBER IS MULTIPLIED BY NINE?

    asked by Anonymous
  164. BIOLOGY

    GIVE AN EXPLANATION OF "SIMILARITIES IN EMBRYOLOGY" give an exclamation for geography as known as distribution of organisms

    asked by Anonymous
  165. physics

    Assume that the pitch of a honking car horn is the F above middle C (f F= 349 Hz) and the speed of sound in air is 770 mph. How fast would a honking car need to be approaching you for you to hear a G (fG = 392) instead of an F?

    asked by Anonymous
  166. Math

    Parallrlogram that is 3 cm measuring 110 degrees and 70 degrees. Please show drawing.

    asked by Trinity
  167. Geometry

    How does the volume of a square pyramid change if the base area is quadrupled and the height is reduced to 1/9 of its original size? A. V= 1/27Bh B. V= 4/27Bh C. V= 2/9Bh D. V= 4/9Bh

    asked by anon
  168. math

    Bert wants to make a larger version of a drawing he saw in a magazine. The drawing fits into a square with each side measuring 7 cm. If Bert makes his copy twice the size of the square measured in the original drawing, how much space will it cover on the

    asked by Karla
  169. MATH

    Drew has a rectangular postcard that is 6 inches long and 4 inches wide. He uses a photocopier to enlarge it, so that the length and width are 1.5 times as long as those of the original postcard. Explain how the perimeter and area change.

    asked by Anon
  170. MATH

    David wants to reduce a rectangular image on his computer so that the new image has 25% of the area of the original image. How should David modify the image? Justify your answer.

    asked by Anon
  171. chem

    Why is it expected that 2/10 of the ejected electrons will cone from the n=1 shell, and 8/10 ofthe electron from the n=2 shell?

    asked by riana
  172. English

    Question wors *Ask questions. 1/ She likes the blue shirt. 2/ I invited all my classmates. 3/ Mom bought this bag . 4/ He said"hello".

    asked by Nawaf
  173. scince

    as you drive down the highway you may see crows feeding on dead animals. as a result of this nutritional pattern,crows may be classified as

    asked by veronica
  174. Algebra

    A gift box has a value of 450 in.³. The width of the box is 4 inches less than the length. The height is twice the witdth. what is the width and inches of the gift box?

    asked by Agata
  175. ethics

    need help on this my answer Epictetus believes that the most important aspect of piety towards the Gods is:D not sure if im correct Answer a. To obey them. b. To have true beliefs about them. c. To accept all that occurs at their hands. d. All of the

    asked by Annmarie
  176. science

    a consumer-producer relationship is best illustrated

    asked by veronica
  177. geometry

    The angle of depression from a hot air ballon in the air to a person on the ground is 36 degrees. If the person steps back 10ft the new angle of depression is 25 degrees. If the person is 6ft tall, how far off the ground is the hot air ballon?

    asked by taylor
  178. stat

    EXERCISE: THE MULTIPLICATION RULE (4 points possible) Are the following statements true or false? (Assume that all conditioning events have positive probability.) P(A∩B∩Cc)=P(A∩B)P(Cc∣A∩B)

    asked by vlad
  179. Biology

    Why do the physical characteristics of the overall population change? Why do some animals die and some thrive? In natural selections why do the animals die?

    asked by Anonymous
  180. Essay Evaluation (Writeacher)

    What do you think about what I have written as an introduction? Dpes it require improvisation or revision? What do you suggest? What I have been assigned to write: "In Amy's Tan's "Rules of the Game," we read about generational tug of war. Write an essay

    asked by Anonymous
  181. ethics

    need help on this one more time For Epictetus and the Stoics, it is _____ that leads us to the best life. my answer is D a. Self-control. b. Pleasure. c. Wealth. d. Controlling our circumstances.

    asked by Annmarie
  182. statistics

    Suppose that each unit of a system is up with probability 2/3 and down with probability 1/3. Different units are independent. For each one of the systems shown below, calculate the probability that the whole system is up (that is, that there exists a path

    asked by sam
  183. science

    Which statement best describes Newton’s Law of Universal Gravitation? A.Large objects, like Earth and the Sun, attract other objects everywhere in the universe. B.Gravity is a kind of magnetic force between objects and Earth. C.Gravity is the result of

    asked by victoria
  184. Geometry

    How does the volume of a rectangular prism change if the width is reduced to 1/10 of its original size, the height is reduced to 1/4 of its original size, and the length is reduced to 2/3 of its original size? A. V=1/120lwh B. V=1/60lwh C. V= 2/3lwh D.

    asked by anon
  185. sociology

    1. Justice Potter Stewart would most agree with which claim about obscenity? (B) It is easy to concretely determine what obscenity is. People can intuitively understand what obscenity is. Obscenity ought to be allowed so long as no one is harmed. Obscenity

    asked by Mariah
  186. 2 question

    What is an AUP? the abbreviation for the school administrator in an online education environment a document outlining what is acceptable behavior when using the Internet for schoolwork a policy outlining the proper formatting to use in Microsoft® Office

    asked by Anonymous
  187. science

    Astronomers study an asteroid that is moving quickly toward Jupiter. Which statement describes how the gravitational attraction between the asteroid and Jupiter will most likely change? A. The gravitational force will increase as the distance between the

    asked by victoria
  188. physics

    You would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. On your first try, you fire the arrow at 36.0 m/s at an angle of 30.0° above the horizontal from a height of 1.40 m while standing 41.0

    asked by julie
  189. Math

    How much coffee that is $10 per pound should be added to 30 pounds of coffee at $3 per pound to get a coffee $5 per pound?

    asked by North
  190. Math

    The directions that came with the kite pattern that Andre ordered on the internet said to cut out 2 supplementary angles so that the measure of one is twice the measure of the other. How many degrees are in each angle? Justify your answer.

    asked by Jenny
  191. Astronomy

    How far will Venus be from Earth on February 19, 2014?

    asked by Carol
  192. The American Revolution

    Please help with the following: Who was Marquis De Lafayette, and what did he do during the war? Who was Casimir Pulaski, and what did he do during the war? I would appreciate it if any of you can help me. I do not know who they are except the very little

    asked by Brady
  193. Calculus

    The half-life of radioactive strontium-90 is approximately 31 years. In 1960, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 11

    asked by Brandon
  194. Math

    industrial capital increase each year in half and spends USD 11,000 a year. to take stock at the end of the third year found that its capital had doubled what was your initial capital?

    asked by Rapha
  195. Algebra 1

    Julie subscribes to a sports magazine and a fashion magazine. She received 24 issues this year. The number of fashion issues is 6 less than twice the number of sports issues. Define the variables, and write a system of equations to find the number of

    asked by Gabbi
  196. java programming

    I have to make two classes, one is to import a file and display the integers in the file. The other class has to take the integers from the first class and use them to calculate things like the average, the highest, the total, and I am completely

    asked by Nathan
  197. Criminal Justice

    Factors that may elevate a nonstop to a stop include: A. whether the suspect attempted to leave. B. the number of officers present. C. display of weaponry. D. All of the above

    asked by Erica Chaviano
  198. Physics

    A 2.0 micro farad capacitor in a circuit in series with a resistor of .0 MOhms is charged witha 6.0V battery. How long would it take to charge to 3/4 of its maximum voltage?

    asked by Julie Calder
  199. Ethics

    Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind? my answer is A a. Life has no meaning, and we must embrace that fact. b. Life's meaning is to provide comfort for oneself and one's family. c.

    asked by Annmarie
  200. Drama

    Can you read this and give me some idea about how I should block the scene because I have to perform it. Hi, I'm William Shakespeare. I had disappeared from the records for seven years. Many rumors flew around, including that I liked to poach. They say I

    asked by Tommy
  201. Physics

    A cart rolls down a hill, if the cart weighs 8.7kg and the cart starts at a height of 3.0m, what is the final velocity of the cart?

    asked by Anonymous
  202. Physics

    1. Two points in a plane have polar coordinates (2.5 m, 30 degrees) and (3.8 m, 120 deg). Determine (a) the cartesian coordinates of both points and (b) the distance between the points. 2. Vector A has magnitude 29 units and points along +y. When vector B

    asked by Rachel
  203. Calculus

    A holding pen for fish is to be made in the form of a rectangular solid with a square base and open top. The base will be slate that costs $4 per square foot and the sides will be glass that costs $5 per square foot. If the volume of the tank must be 50

    asked by Ann
  204. Physics

    The figure shows portions of two large, parallel, non-conducting sheets, each with a fixed uniform charge on one side. The magnitudes of the surface charge densities are σ(+) = 4 μC/m2 for the positively charged sheet and σ(-) = 10 μC/m2 for the

    asked by Lyra
  205. pre-calc

    find the inverse of the function f(x) = x^2 − 6x, x ≥ 3

    asked by Anonymous
  206. Math

    1a) Prove that there exist irrational numbers a and b so that a^b is rational. look at the numbers √2^√2 and (√2^√2)^√2 1b) use similar idea to prove that there exists a rational number a and an irrational number b so that a^b is irrational 1c)

    asked by excel
  207. English

    But his reference to Shakespeare is especially deliberate, being in the form of a solemn and last appeal to his friends among the scholarly dramatists to relinquish their connection with the presumptuous and ungrateful stage.

    asked by Tommy
  208. Ethics

    Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind? my answer is A a. Life has no meaning, and we must embrace that fact. b. Life's meaning is to provide comfort for oneself and one's family. c.

    asked by Annmarie
  209. CHEMISTRY

    0.15g of hydrogen chloride (HCl) is dissolved in water to make 6.5L of solution. What is the pH of the resulting hydrochloric acid solution?

    asked by Anonymous
  210. math

    1-tan^2 theta/1+tan^2 theta + 2sin^2 theta need to simply to sin and cos

    asked by john
  211. Thesis Statement

    “The subject of this paper is my experience with teaching elementary school children” Is this a weak or strong thesis statement

    asked by Anonymous
  212. math

    The cruising speed of a Boeing 767 in still air is 530 mph. Suppose that a 767 is cruising directly east when it encounters an 80 mph wind blowing 40 degrees south of west. Sketch the vectors for the velocities of the airplane and the wind. Express both

    asked by Connie
  213. Physics

    1200kg car moving at 9.72m/s runs into and sticks to a parked 1000kg car. The collision takes 0.15s and after the crash the cars wheels lock and they skid to a stop on the u=0.40 road. what is the distance travelled before skidding to a stop?

    asked by Ann
  214. Science

    1. Consider a neutral atom that has 17 electrons A.) how many protons does it have b.) what is it's atomic number c.)which element is it 2. List the following for an atom with 33 protons and 42 neutrons a.) the name of the element b.) the atomic number

    asked by Tessa