Questions Asked on
September 4, 2015

  1. English

    1. What fact best explains why it is significant that Angelou's narrative is set in 1940? A. In 1940 the united states was not yet involved in world war 2 B. In 1940 segregation of blacks and whites was still the norm *** C. In 1940 most high school

  2. Math Really Hard

    Let S be a subset of {1, 2, 3,...100}, containing 50 elements. How many such sets have the property that every pair of numbers in S has a common divisor that is greater than 1?

  3. Physics

    A batted baseball leaves the bat at an angle of 30 degrees above the horizontal and is caught by an out fielder 400ft from the plate. (a) what was the initial velocity of the ball? (b) How high did it rise? (c) How long was it in the air

  4. Math

    Lockers are numbered with consecutive positive integers beginning with 1, and the digit 2 is used exactly 106 times (including on the last locker). What is the number of the last locker?

  5. physics

    A watch manufacturer claims that its watches gain or lose no more than 8 s in a year. How accurate is this watch, expressed as a percentage? Express your answer using one significant figure.

  6. geometry

    When constructing parallel and perpendicular lines, how are the steps similar? Intersecting arcs are created and connected.* A protractor and ruler are used to take accurate measurements. Four right angles are created. There are no similarities When

  7. Algebra

    To which subset of real numbers does the following number belong? square root of 7 A)rational numbers B)irrational numbers****** C)whole numbers, integers, rational numbers D)whole numbers, natural numbers, integers

  8. math

    Joe decides to take his six year old son to the planetarium. The price for the child's ticket is 5.75 dollars less than the price for the adult's ticket. If you represent the price for the child's ticket using the variable "x," how would you write the

  9. math

    An equation and the steps to solve it are shown below: 3x − one over two (8x − 2) = 4 Step 1: 3x − 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 − 1 = 4 − 1 Step 4: x = 3 Which step was the error made and why? Step 1, because incorrect signs have

  10. Counting Numbers

    A prime number less than 100 is selected randomly. What is the probability that its square has units digit 7?

  11. Physics

    Tom is sladding down a hill. His sled starts from rest, and undergoes a uniform acceleration of 2.0 m/s2 down the slope. What is his speed after 1 second?, after 2 seconds? after 3 seconds?

  12. Math

    Which of the following is an asymptote of f(x)=(x^2+3x+2)/(x+2)*tan(pi*x)? A) x=-2 B) x=-1 C) x=1/2 D) x=1 E) x=2 Answer is C but I got A because substituting x for -2 makes the graph undefined.

  13. politics

    The __________ supported strong state governments because they believed that states would be close to the popular will. A. Federalists B. Anti-Federalists C. people D. opposing parties A?

  14. chemistry

    Hydrogen sulfide burns in oxygen to form sulfur dioxide and water. If sulfur dioxide is being formed at a rate of 0.19 mol L-1 s-1, what are the rates of disappearance of hydrogen sulfide and oxygen? rate of disappearance of O2? rate of disappearance of

  15. calculus

    a particle starts from rest and moves along a straight line with an acceleration equal to 24-15√t where distance and time are measured in terms of feet and seconds respectively. with what acceleration will the particle return to the starting point?

  16. math

    Nancy wants to make a graph to show the relationship between the temperature of water, in degrees Celsius, and the time, in minutes, for which water is heated. She plots the following points: (0, 50), (1, 60), (2, 70), (3, 80), (4, 90) She uses the

  17. Physics

    Standing on the roof of a 62 m tall building, you throw a ball straight up with an initial speed of 14.5 m/s. If the ball misses the building on the way down, how long will it take from you threw the ball until it lands on the ground below? Give your

  18. Math

    Solve the equation (5y+1)^2 + 5(5y+1) + 6 = 0. Do not expand first. I solved the equation up to 25y^2 + 35y + 12 = 0 and not sure how to proceed from here on.

  19. science

    A block of mass 20gm moves along a smooth surface at a speed of 5m/s and collides with a spring constant 20N/m.what will be the maximum compression of a spring?

  20. chemistry

    What is the mass of 225ml of a liquid that has a density of 0.880g/ml

  21. History

    Combining ideas to make something new is known as? A. Evaluation B. Synthesis C. Interpreting *** D. Analyzing

  22. Algebra

    Which property is illustrated by the following statement? 2(-3/9)=(-3/9)2 A)Associative Property of Addition B)Commutative Property of Multiplication C)Inverse Property of Multiplication ****** D)Commutative Property of Addition

  23. Ebhs,maths,siswati,english and business studies

    I am frank,i have 4 credits with me namely,maths,siswati,business studies and english,am asking what courses i can take

  24. education

    A weakness of experimental studies is that. A.they cannot be used to determine cause and effect b.they cannot be used in a laboratory setting. C. Results may be representative of real-life behavior. D. They are usually expensive. I am think b or c

  25. Math

    What is the probability that a randomly selected man between the ages of 55 and 64 does not have this disease

  26. Chemistry

    The density of copper decreases as temperature increases. Which statement accurately describes the changes in a sample of copper when it is warmed from room temperature to 95 degree Celcius. a. The sample will become lighter. b. The sample will become

  27. eced

    A correlatibas .82 was found betweenen number of hours studied and final exam scores. A.students who stuief less received a high exam scores. B.students who studied who studied received lower exam scores. C.studying caused studies to received higher exam

  28. Health

    Which of the following secondary sex characteristics do not develop during the teen years? (1 point) development of breasts in girls development of body hair in boys development of ovaries in girls and testes in boys development of acne in boys 2. What is

  29. math

    Betty had $40 in her pocket. She bought 12 identical bags of popcorn. Betty was left with $10 after buying the popcorn. What was the price, in dollars, of each bag of popcorn? 0.55 2.50 4.17 5.20 I think it c

  30. math

    If a line (-9,7) is marked by e which is a ratio of 1/4 then where is e on the line? My answer is -7

  31. Public speaking

    focus on how people use messages to influence each other in various contexts and cultures, using a variety of media. A. Public speakers B. Radio personalities C. Motivational speakers D. Communication researchers

  32. math

    How many 2 1/4 feet long strips of ribbon can be cut from a ribbon that is 7 1/2 feet long

  33. PHYSICS

    A basket is being dragged across a horizontal floor by two horizontal rope A and B which are inclined at 36 degree and 27 degree respectively with the direction in which the basket is moving.Rope A has a tension of 20Newton.Find the tension in rope B and

  34. english

    What are the two main reasons for “a wave of discontent directed at those who have represented [the people] over the decades” as discussed in the article

  35. finite math

    Solve the problem N#27,i#0.053,pmt#175,pv#?

  36. english

    India elections: domination of Nehru-Gandhi dynasty under threat.

  37. chemistry

    while dilution the aqueous solution of salt, a student by mistake added ethanol.which technique can be used to recover it

  38. Science

    the brakes applied to a car produces uniform retardation. the car covers 16m before stopping how long where the brakes applied

  39. math

    225 over 4 times 1 over 100

  40. English

    1. I'll give you $3 more a week. 2. I'll give you three dollars more a week. 3. I'll give you three more dollars a week. =========== Does #1 mean #2 or #3? Are they all the same in meaning?

  41. math

    Sean bought 8 slurpees at $1.50 each and 6 Popsicles. He gave the cashier $25.00 and received $4.00 change. How much did each Popsicle cost? my answer: each slurpees for $1.50 the total will be = 8x $1.50= $12 for all slurpees. so, $25-12= 13 13-4 (the

  42. Enlgish

    Oh, my goodness! =============== Why do we have to use 'goodness' here? What meaning does 'goodness' have here?

  43. Presbyterian Boys' Senior High

    Q, P and R are three villages on a level ground. Q is 4km on a bearing of 040° from P, while R is 3km on a bearing of 130° from Q. Calculate the distance and bearing of P from R.

  44. Algebra

    A Car is moving at an average speed of 60 km/h. Find the algebraic expression for the kilometer it would travel in y minutes. Comment on this question: Hello, for me, algebra is one of the hardest subjects at school. Most of the time I read a question over

  45. Math

    What is the probability that a randomly selected man between the ages of 55 and 64 does not have this disease

  46. Physics

    Two people pushing a stalled car from rest generate a net force of +840N for 5.0s. What is the cars final velocity?

  47. PRE CALCULUS

    1.) The cash flow per share for the Timerland Co. was $0.18 in 1995 and $4.04 in 2003. Write a liner equation that gives the cash flow per share in terms of the year. Let t=5 represent 1995. Then predict the cash flows for the years 2008 and 2010. 5.) The

  48. Kwaphayikeni high school

    Life orientation : the impact of risky behaviour and situations: Emotional and social

  49. math

    Solve the equation 4x^3 + 32x^2 + 79x + 60 =0 given that the root is equal to the sum of the other two roots. (Hint: set roots as alpha, beta, gamma)

  50. Integrity

    What is Physics

  51. English

    "When you touch another person's life, the gift keeps on multiplying." Please help me interpret this quote because I don't understand it very much.

  52. ENN

    the story of India Election of Nehru-Gandi dynasty under threat. Main reasons for wave of disconten directed at those whho presented the people over the decades?

  53. English

    Similarly on the other hand and however are the signals that the author of a source is using which of the following structures. A. Sequencing B. Comparison and contrast *** C. Cause and effect D. Problem and solution

  54. History

    Which set of words indicates that the author is demonstrating the cause and effect of events? A. So; because; therefore; as a result B. Above; behind; next to; below *** C. Help; problem; obstruction; difficulty D. Principal; central; fundamental;

  55. science (physics)

    An applied force of 50 Newtons is used to move a 6 kilogram mass.The opposing friction force to overcome is 2 Newtons.

  56. physics

    An ice cube of mass 0.200 kg melts at 0.0°C, and then the melt water is heated to How much heat was added to the ice cube? For water and Lv = 2257 kJ/kg. The specific heat capacity of water is 4.19 kJ/kg ∙ °C.

  57. Phsyics

    A car moving at 105 km/h is 100 km behind a truck travelling at 80 km/h in the same direction. How many km does the car travel before it overtakes the truck?

  58. Physics

    Two particles having charges of 0.580 nC and 20.9 nC are separated by a distance of 1.10 m . Where would the net electric field be zero if one of the charges were negative? Enter your answer as a distance from the charge initially equal 0.580 nC . keq1/r^2

  59. Physics

    An object is thrown vertically upward and has a speed of 12 m/s when it reaches one fifth of its maximum height above the launch point. Determine its maximum height. g=9.81 m/s^2. Please help

  60. History

    what was the importance of additional land acquired through westward expansion? It Provided protection from war. It provided more land for Native Americans. It provided space for the growing number of immigrants. It did not provide anything of importance

  61. Algebra

    Simplify the following expression. 1/3(21m + 27) 7m + 27 7m + 9 ******* 63m + 9 7m + 81

  62. Chem

    Express the concentration of a 0.0700 M aqueous solution of fluoride, F-, in mass percentage and in part per million. Assume the density of the solution is 1.00 g/mL.

  63. biolgy

    The desert tortoise digs a burrow and hides in it during the day to stay cool, because of the extreme heat aboveground. Which characteristic of life does this behavior best illustrate? A.response B.metabolism C.cellular organization D.growth and

  64. Algebra

    Which property is illustrated by the following statement? 6 + (2x + 2z) = (6 + 2x) + 2z Associative Property of Multiplication Commutative Property of Multiplication Inverse Property of Multiplication Associative Property of addition******

  65. Physics

    A 297-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3560 N, and air resistance produces a force of 270 N that opposes the motion. Find the magnitude of

  66. Algebra

    What is the value of x / yz if x= –2, y= –3, and z = –4? 6 –6 1/6 -1/6*******

  67. computers

    What is the primary way to access applications in Windows 8?

  68. Spanish

    What is the most likely purpose of the gaucho games (1 point) a. to honor the lost civilization of the guachos b. to train people to become professional guachos c. to showcase the skills of the guachos d. to celebrate the guacho harvest period i think a or

  69. Aakash model sr sec school

    project on Maggie for class 11th of six months

  70. Aakash model sr sec school

    project on changing prices of vegetables in India of six months

  71. math

    let a = 2, b = -5, c = 7, and d = -4 Question ~ Evaluate b – a(cd + b) This was my answer ~~ Evaluate b – a(cd + b) (cd+b)=-33 (7)(-4)+(-5) (7)(-4)=-28 (-28)+(-5)=-33 (-5)-(2)((-33)) (2)((-33))=-6 (-5)-(-6)=1 Can someone help/show me how to answer this

  72. science

    Which of the following statements describes the aim of the person who threw the darts shown in the picture? (1 point) A*) The person’s aim was both precise and accurate. B*)The person’s aim was precise, but it was not accurate. C*)The person’s aim

  73. math

    Determine the enthalpy of 5.0 kg of water at 850 kPa. thankyou very much!

  74. Chemistry

    So the answer is c,correct? The density of copper decreases as temperature increases. Which statement accurately describes the changes in a sample of copper when it is warmed from room temperature to 95 degree Celcius. a. The sample will become lighter. b.

  75. politics

    despite the principle of separation of powers,wich of the followings is an example of the president's (the executive) legislative powers? a.the power to recommend measures to congress b.the power to remove cabinet secretaries c. executive review of supreme

  76. Chemistry

    Suppose you have two 100-mL graduated cylinders. In each cylinder, there is 40.0 mL of water. You also have two cubes: one is lead, and the other is aluminum. Each cube measures 1.8 cm on each side. After you carefully lower each cube into the water of its

  77. MATH

    Reiny (Previous problem) better form would be to place the equal sign in front of each new line You also have errors -3(x + 3)- 2(x + 4) = -3x - 9 - 2x - 8 = -3x - 2x - 9 - 8 = -5x - 17 So -3 x 3 made -9. how did the 2 become negative, I thought it was a

  78. politics

    James Bryce believed that the Constitution was a fine example of: A. mass democracy at work. B. development of an oligarchical system of government. C. an incrementally improved system not far removed from the Magna Carta. D. a governing system that

  79. Physics

    A model rocket is launched straight upward with an initial speed of 46.4 m/s. It accelerates with a constant upward acceleration of 2.18 m/s2 until its engines stop at an altitude of 138 m. What is the maximum height reached by the rocket? How long after

  80. politics

    The Magna Carta and writings of __________ illustrate the English legal heritage that limited government authority. A. John Locke B. Thomas Jefferson C. Patrick Henry D. James Madison I am pretty sure its A

  81. politics

    The “Great Compromise” meant that the __________ of the states was assured in the Senate, while large and small state differences were maintained in the House. A. separateness B. disparity C. incongruity D. equality D?

  82. Physics

    Starting from the constant-acceleration kinematic equations, write a formula that gives vf in terms of t, xi, xf, and a. Starting from the constant-acceleration kinematic equations, write a formula that gives t in terms of xi, xf, vi, and vf.

  83. ALgebra

    what is the maximum speed a car could be traveling in order to stop within 40ft? d=0.05V^2+1.20V

  84. politics

    President Bush and Governor Blanco struggled to agree about how to respond to Hurricane Katrina due to: A. political differences and perceptions of incompetence by both. B. President Bush never having been in a hurricane before. C. Governor Blanco being a

  85. BioChem

    1.Suppose you had a buffer containing 0.5 moles of sodium monobasic phosphate and 0.5 moles of sodium dibasic phosphate. How many moles of hydrochloric acid would this phosphate buffer be able to accept before the pH of the solution began to change

  86. Math

    At 8:00pm,the temps tire was16f by midnight ,the tempature had fallen by 19 f what was the tempature at midnight

  87. English Language & Composition

    The following BODY paragraph appeared in a student essay submission. Read it carefully, identifying srengths and weaknesses in the margins and fixing any errors with regard to content, style, grammar, and mechanics. I this already & I could only find that

  88. Math

    The temperature was negative for Celsius at midnight by the next morning the temperature rose by 12 Celsius what would be the temperature for the morning

  89. Geometry

    In a Hexagon net for a 3 dimensional solid how many regions would there be? My answer is 8 the 6 sides and the top and bottom

  90. politics

    The Twenty-seventh Amendment: A. lowered the voting age to 18. B. reinforced the due-process clause. C. specifies parameters for congressional pay raises. D. liberalizes illegal searches and seizures. C ?

  91. Physical science

    A 70-kg man and a 50-kg woman are in a 60-kg boat when its motor fails. The man dives into the water with a horizontal speed of 3m/s in order to swim ashore. If he changes his mind, can he swim back to the boat if his swimming speed is 1m/s? If not, can

  92. calculus

    If the driver of a car wishes to increase his speed from 20 mph to 50 mph while traveling a distance of 528 ft., what constant acceleration should he maintain?

  93. math

    An equation and the steps to solve it are shown below: 3x − one over two (8x − 2) = 4 Step 1: 3x − 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 − 1 = 4 − 1 Step 4: x = 3 Which step was the error made and why? Step 1, because incorrect signs have

  94. politics

    Backers of a balanced-budget amendment to the Constitution might consider the following strategy: A. seeking support for such an amendment through approval by at least 34 state conventions, as almost occurred in the 1980s. B. mounting a federal court case

  95. chemistry

    why is 2-methylpropan-2-ol is an excellent solvent for oxidation reactions while propan-1-olis a poor solvent

  96. math

    A planes flight path called for it to fly from J to W. W is 200km due North and 500km West of J. What bearing will the pilot fly and what distance will be traveled in air kilometers. I know to draw and image but that is it.

  97. math

    You are installing a new pre-constructed fence. Each fence section measures 4 1/2 feet wide and each end will also have a decorative piece that measures 1 3/4 feet wide. The space for the fence is 30 feet wide. What is the most number of 4 1/2 foot fence

  98. Ivuna High School Life orientation

    three ways on how this issues can impact negatively to the health of the people in your community or school

  99. Chemistry

    Which of the following is a legitimate set of n, l, m(l), and m(s) quantum numbers? a. 4, -2, -1, 1/2 b. 4, 2, 3, 1/2 c. 4, 3, 0, 1 d. 4, 0, 0, -1/2 I don't think it's c because m(s) can only have +1/2 or -1/2 but I'm not sure how to figure out the others.

  100. chemistry

    A square piece of paper measuring 4.8 inches on a side is weighed and found to have a mass of 1.5 grams. How many pounds would exactly 500. sheets of this paper weigh, given that each page measures 21.50 cm by 27.73 cm?

  101. Algebra

    (x+5)^2 -(x-5)^2= Simplify. Help please :)

  102. Math- Algebra

    1/2(w-h)=hn+5p Please help me with this if possible :)

  103. Math

    The tree is 12 feet tall the tree shadow is 6 yards long write this as a rate of tree height to shadow length.