Questions Asked on
June 9, 2014

  1. math

    What is the period, in seconds, of a simple pendulum of length 3 meters? Use the gravitational constant g = 9.8 m/s2 and round your answer to two decimal places Please help! A step by step would with the answer would be helpful!

    asked by Katie
  2. MATH

    You have five $1 bills, four $5 bills six $10 bills and three $20 bills. You select a bills at random. Without replacing the bill, You choose a second bill. What is P($1, then $10)?

    asked by Delsharr
  3. math (check answer plz)

    2. A jar contains blue, red, yellow, and green marbles. P(blue)=1/4. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment.

    asked by Me
  4. Algebra

    Suppose a cost-benefit model is given by y=2771x/100-x, where y is the cost for removing x percent of a given pollutant. What percent of pollutant can be removed for $36,000? Round your answer to the nearest tenth of a percent?

    asked by Michelle
  5. Probability!

    A bag contains 5 green marbles , 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marbles, replace it, and choose again. what is p(red then blue) 20/43 40/43 20/1849 96/1849

    asked by InDireNeedOfHelp
  6. CHEMISTRY

    How many liters of softened water, containing a sodium concentration of 0.050% sodium by mass, have to be consumed to exceed the FDA recommendation? (Assume a density of 1.0 g/mL for water.)

    asked by TITO
  7. physics

    A 370kg piano slides 2.9m down a 24∘ incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Ignore friction.

    asked by jim
  8. MATH

    A spinner is divided into 10 equal sections numbered from 0 to 10. You spin the spinner once. What is P(divisible by 3)? 1/3 1/2 2/5 3/10 The probability of a certain baseball player hitting a foul ball is 1/4. How many foul balls would you expect her to

    asked by InDireNeedOfHelp
  9. Probability

    Justin writes the letters I-L-L-I-N-O-I-S on cards and then places the cards in a hat. What is the probability of picking an L? 1/8 1/4 1/6 2/7 What is the probability of picking a vowel? 1/3 1/2 1/4 4/7

    asked by InDireNeedOfHelp
  10. Which function rule represents the data in this...

    Which function rule represents the data in this table? X: -3 -2 -1 0 1 Y: -17 -14 -11 -8 -5

    asked by InDireNeedOfHelp
  11. Math

    Two 6-sided dice are rolled at the same time. How many outcomes correspond to the event that the sum of the numbers is 5?

    asked by Sami
  12. CHEMISTRY

    How much 0.200 M KOH is required to completely neutralize 25.0 mL of 0.150 M HClO4?

    asked by TITO
  13. Chemistry

    How would you prepare pure dry crystals of pottasium trioxonitrate (v) ?.

    asked by Precious
  14. Biology

    What would happen if a nucleotide was deleted in the exon region of a gene? the intron?

    asked by I.
  15. Algebra

    Find the coordinates of the midpoint of the hypotenuse of the right triangle whose vertices are A (1,1) B (5,2) C (4,6) and show that it is equidistant of each of the vertices..... And can you please tell me how to prove it in drawing....

    asked by Tsunayoshi
  16. civics

    how can government actions can affect how banks operate?

    asked by Help!!! Mrs sue
  17. science

    A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to è(t)= (1.20rad/s)t +

    asked by Mona
  18. Physics

    Calculate the maximum acceleration of a car that is heading up a 9.5° slope, assume that only half the weight of the car is supported by the two drive wheels and that the static coefficient of friction is 1.

    asked by Emma
  19. physics

    The mass of an atom can be determined by ionizing it and accelerating it through a known electric field followed by a known magnetic field. The ion’s circular path is then measured. Calculate the mass of a chlorine anion of charge 3.20 × 10−19 C if it

    asked by grey
  20. MATH

    You have five $1 bills, four $5 bills six $10 bills and three $20 bills. You select a bills at random. Without replacing the bill, You choose a second bill. What is P($1, then $10)?

    asked by InDireNeedOfHelp
  21. math

    A tap flows at a rate of 15 litres per minute. How long will it take to fill a 300 litre container?

    asked by Roshini
  22. Chemistry

    Consider the following equilibrium. 2 SO2 (g) + O2 (g) 2 SO3 (g) The equilibrium cannot be established when __________ is/are placed in a 1.0-L container.

    asked by Veronica
  23. biology

    A bacterial strain divides once every 30 minutes. After 90 minutes, a single bacterium can form a total of ___ bacteria

    asked by Anonymous
  24. physics

    Water is flowing through a horizontal pipe of varying cross section. At section 1,the diameter is 12cm at a pressure of 80000 Pa. At section 2, the pipe has a diameter of 6cm and the pressure is 60000 Pa. Find the speed of water through sections 1 and 2.

    asked by Haiano
  25. math foundations 20

    How do I solve normal distribution word problems? Ex A manufacturer offers a warranty on it's coffee makers. The coffee makers have mean lifespan of 4.5 years, with standard deviation of 0.7 yeaes. For how long should the coffee makers be covered by the

    asked by Ayane
  26. Chemistry

    I need help on these three questions. For all three of them you're supposed to write a balanced equation for each neutralization. Then, to find the concentrations of the unknown solutions if the following reactions are found to reach equivalence by

    asked by Molly
  27. Math

    Alex's distance form home is represented by the equation D= -0.5t +300 D represents his distance from home and t represents time in minutes How long will it take Alex to reach a distance of 182 km from home

    asked by Sally
  28. chemistry 2

    What is the value for ∆Soreaction for the following reaction, given the standard entropy values? 2 Al (s) + 3Cl2(g) 2AlCl3(s) a.-503 J/K b.+503 J/K c.-140 J/K d.+140 J/K

    asked by gi
  29. Algebra

    Suppose you want to determine the number of miles you can drive in your car. Your car gets 20 miles per gallon. The number of miles traveled varies directly with the number of gallons of gas the tank holds. Write a direct variation equation that represents

    asked by Maddison
  30. trig

    A weight attached to a long spring is bouncing up and down. As it bounces, its distance from the floor varies periodically with time. You start a stopwatch. When the stopwatch reads 0.3 seconds, the weight reaches its first high point 65 cm above the

    asked by Sarah
  31. Physics

    Help please A wire carries a current of 5.2 A from east to west through a 6.0 m section of wire in the earth's magnetic field of 1 × 10^-5 T at a location where the magnetic field points south. What is the magnitude of the magnetic force acting on the

    asked by Me and I
  32. Cvics-I need these answers checked now or ill fail

    which of the following would be part of the democratic party platform? 1: cutting taxes for the wealthiest citizens 2: providing for public health care 3: decreasing the size of government 4: cutting funding for educational programs

    asked by Skye
  33. us hist

    A tactic that the United States used that was very successful against the Japanese in the Pacific Theater of War was called "Island Hopping." True/False Is true?

    asked by joe
  34. Accounting

    What is the closing entry to allocate a net income of $48,000 to Sara, Ellen, and Mary? Respective capital balances are $30,000, $40,000, and $30,000. No agreement was made for division of income. A. Debit Income Summary $48,000; credit Sara’s Capital

    asked by Bryan
  35. check answer

    From a hot air balloon, Sean looks through an angle of depression of 35 degrees to see LeAnn on the on the ground. If Sean and LeAnn are 500 ft. apart by the line of sight distance, to the nearest foot, how far is Sean off the ground? I used 500(cos55)

    asked by Anonymous
  36. Goemetry

    segment PQ with endpoints P(4,2) and Q(2,17) is dilated by a scale factor of 4. Find the length of segment P',Q'

    asked by Emma
  37. Math

    If Kate is flying a kite on the field and she lets out 20 meters of string and at the same time her friend Abigail is watching in the distance The angle of elevation of the kite from her position is 65 degrees And the angle of elevation of the kite from

    asked by Matt
  38. geometery

    4. Quadrilateral MATH has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of quadrilateral MATH.

    asked by kim
  39. Calculus

    What is the total change of f(x), if f'(x) = 2x - 3x^2, over the interval [0, 3]?

    asked by Jamie
  40. trigonometry

    An airplane rises vertically 1000 feet over a horizontal distance of 1 mile. To the nearest degree what is the angle of elevation of the airplane’s path?

    asked by Anonymous
  41. physics

    Two straight and parallel wires of length 1.0 m carry a current — the first carries a current of 9.0 A while the other wire carries a current of 4.0 A. What distance must separate the two straight and parallel copper wires if the force between them is to

    asked by grey
  42. Math

    Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth

    asked by Han
  43. algebra

    one to one functions g and h are defined as g={(-4,5), (2,-5),(3,2, (4,0)} h(x)= 2x+9 find the following g^-1 (2) h^-1 x) (h*h^1)(-7)

    asked by tbell
  44. history

    I need some help on explaining what japans shogun is and if it was a policy of isolation or engagement?

    asked by mary ann
  45. math

    The polynomial x 3 + 5x 2 -57x -189 expresses the volume, in cubic inches, of a shipping box, and the width is (x+3) in. If the width of the box is 15 in., what are the other two dimensions? ( Hint: The height is greater than the depth.)

    asked by brittany
  46. physics

    Two straight conductors are 15 cm apart. If one conductor has a current of 12 A and the other has a current of 18 A, calculate the magnetic field at a point midway between the two conductors. The current in both conductors is flowing in the same direction.

    asked by grey
  47. physics

    A child drops a ball from a height of 10 m. Assume its acceleration increases uniformly at the rate of 10m/s2. find the velocity with which the ball strikes the ground. Find the time taken to the ball reach the ground.

    asked by Anonymous
  48. math.

    Solve the double inequality 0

    asked by Anonymous
  49. Math

    a standard checkerboard with 8 blocks to a side contains 204 squares of various sizes. in how many such squares are there an equal number of red blocks and black blocks?

    asked by dddd47906
  50. physics

    An object of mass 1.6 kg is dropped from a height of 2.9 metres. It lands with a speed of 2.8 m/s. How much energy was lost due to air resistance? (Give your answer to 2 s.f., expressed as a magnitude)

    asked by allen
  51. physics

    You shoot a 57 gram dart vertically upwards from a catapult with a spring constant of 379 N/m. The catapult is initially stretched from the equilibrium point by 30 cm. What is the height above the starting point reached by the dart? Ignore air resistance

    asked by jake
  52. statistics

    What is the null hypothesis for the following questions: Is there a relationship between heart rate and the number of cups of coffee drunk within the last 4 hours?

    asked by lachon
  53. math

    12 different flavors of ice cream and 2 different toppings. How many different kinds of sundaes could be made if each sundae contained 2 scoops of ice cream and one topping?

    asked by lisa
  54. Algebra 1--Please, help me!

    A city map is laid out on a coordinate plane. Elm Street is described by the line x + 2y = -6. Oak street intersects Elm Street at an right angle. Which of the following could be the equation for Oak Street? a. 2x + y = 5 b. -2x + y = 3 c. x + 2y = 4 d. -x

    asked by Victoria
  55. Algebra 1--Please, help me!

    1. What are the x- and y-intercepts of the line described by 6x - 2y = 4? a. x-intercept: 2/3; y-intercept: 2 b. x-intercept: -2/3; y-intercept: 2 c. x-intercept: 2/3; y-intercept: -2 d. x-intercept: -2; y-intercept: 2/3 My answer: ? 2. Which expression is

    asked by Victoria
  56. algebra/how can I solve this/Thank You

    Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18

    asked by Mary Ann
  57. Algebra

    Suppose you want to determine the number of miles you can drive in your car. Your car gets 20 miles per gallon. The number of miles traveled varies directly with the number of gallons of gas the tank holds. Write a direct variation equation that represents

    asked by Maddison
  58. Computer Science!!!! Help!!!

    The book is not doing anything for me. Anyone know where I can find step by step tutorial of this? Specifically for Visual Basic 2012? And not just a simplified version, I mean EXACTLY how to do this. I have been looking through YouTube, my textbook (An

    asked by Damien
  59. English

    Q: What is the English name for the restaurant which carries food made with flour, a kind of flour based food restaurant?

    asked by rfvv
  60. physics

    a wire of resistance 5omega is bent in the form of a closed circle . what is the effective resistance between the two points at ends of any diameter of the circle?

    asked by jatin
  61. physics

    2.00 m long straight copper wire has a current of 8.0 A in it as it passes through a magnetic field. The magnitude of the force on the conductor is 2.00 N. The angle between the current and the magnetic field is 45°. What is the magnitude of the uniform

    asked by grey
  62. POL 201 week 1 Quiz

    Question 1.1. In John Locke’s social contract, we (Points : 1) submit to the absolute authority of the sovereign. donate all our property to the aristocracy. can rebel against the sovereign whenever we want. exchange our absolute liberty for political

    asked by Sara
  63. history African American

    Describe 3 examples of being “Color Brave”

    asked by Kelly
  64. Precalculus

    Records from the buzz sawmill show that workers have 0.03 probability of losing a leg and a 0.04 probability of losing an arm in any one year. Armand leg casualty insurance company plans to offer insurance policies for the workers. The company will pay

    asked by Anonymous
  65. english essay

    how to start introduction on speech???? please help me...

    asked by aina
  66. Physics

    with this one i'm confused i'm not sure if it's b or d The current in a solenoid is changed from 1.1 A to 4.4 A. By what factor does the magnitude of the magnetic field inside the solenoid increase? 2 4 0.5 0.25 1.1/4.4= 0.25 0r 4.4/1.1= 4

    asked by Me and I
  67. Business

    ***i have to answer interviewing questions for my homework. Im stuck on how to answer them. Its just practice and can be general. What is the most difficult part of the job? What types of challenges would I face in this position/department?

    asked by Anonymous
  68. The twentieth century,part1

    Was recognized as a musical pioneer who challenged convention and went against the grain

    asked by Jeraldeen
  69. physics

    An astronaut, mass 128.2 kg including spacesuit, pushes off from the International Space Station (mass 110 tons) with a speed of 1.2 m/s. What is the speed of the Space station in the opposite direction? Use 2 s f. for your answer

    asked by allen
  70. math *check*

    1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C.

    asked by Me
  71. physics

    Calculate the magnitude of the force if a ball of mass 249.9 grams, and initial velocity +16.5 m/s is struck back on the same path with a final velocity of -22.0 m/s. Assume the contact time is 3.1 milliseconds. Use 2 s.f.

    asked by allen
  72. physics

    The elastic potential energy of an object may be negative Select one: True False

    asked by jake
  73. Maths

    Find the maximum or minimum value of function and the value of x when it occurs: -2x^2+5x+5.

    asked by Han
  74. Algebra 1--Please, check my answer!

    At how many points does the graph of y = (x-6)^2 intersect the x-axis? A: Two.

    asked by Victoria
  75. PennFoster

    when a european coffee maker becomes less expensive to buy in the united states, you could probably say that we're experiencing a

    asked by George
  76. Algebracan you answer my question

    Solve the system by graphing. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.) {x-y=4 {2x+3y=13 How can I tell if it is Inconsistent or Dependent Thank you

    asked by Mary Ann
  77. Algebra

    Define the functions f(x)=2x+5 g(x)=x^2-3 h(x)=7-x/3 compute (f-h)(4)

    asked by tbell
  78. Algebra

    The Parker’s are installing a wooden fence in their backyard. They have 330 feet of wood. The length can be no more than 90 feet. Write and solve an inequality to find the maximum width of the fence.

    asked by Gator
  79. equation

    10 triples every two months

    asked by Anonymous
  80. English

    If ramen a kind of street food?

    asked by rfvv
  81. algebra/can you show me how to solve problem

    if f(x)=x^2+2, find the following, f(-3), f(3/2), f(b) Thank you

    asked by Mary Ann
  82. physics

    A child drops a ball from a height of 10 m. Assume its acceleration increases uniformly at the rate of 10m/s2. find the velocity with which the ball strikes the ground. Find the time taken to the ball reach the ground.

    asked by Anonymous
  83. physics

    In a model yacht race on a river five identical yachts A,B,C,D,E are released at the same time from different points along the starting line. a)why should C win? b) as they approach the finishing line they all slow down. Why?

    asked by Haiano
  84. physics

    In a spray can,the flow of air makes paint flow up the tube. As the air flows, it is blown away in droplets. A)as the air flows what happens to its speed and pressure? Why? B)why does the paint flow up the tube?

    asked by Haiano
  85. Algebra 1--Please, check my answer!

    1. A city map is laid out on a coordinate plane. Elm Street is described by the line x + 2y = -6. Oak street intersects Elm Street at an right angle. Which of the following could be the equation for Oak Street? a. 2x + y = 5 b. -2x + y = 3 c. x + 2y = 4 d.

    asked by Victoria
  86. medical billing and coding

    coding that is inappropriately altered to obtain a higher payment rate is called

    asked by toya
  87. PHYSICS

    relation between time "t" and distance "x' is t=ax^2+bx where a and b are constant then acceleration is A / -2abv^2 b/ 2bv^3 C // -2av^3 D // 2av^2

    asked by AYESHA
  88. Algebra

    T={(-7,5),(9,-4),(9,3),(0,-7)} give the domain and range of T

    asked by tbell
  89. geometry

    solve the proportion: 5/2=22/24w the answer is 11/30 but I don't understand how you get that.

    asked by Emma
  90. Algebra

    evaluate the two compositions (f*g)(x) (h*g)(x) using the functions F(x)=2x+5 g(x)= x^2-3 h(x)= 7-x/3

    asked by tbell
  91. math helpppp !

    Solve the equation and check soultion 2(13t-15)+3(t-19)=0

    asked by Anonymous
  92. Physics

    In a model yacht race on a river five identical yachts A,B,C,D,E are released at the same time from different points along the starting line. a)why should C win? b) as they approach the finishing line they all slow down. Why?

    asked by Bee
  93. history

    Explain Japanese internment and what (if any) role that period plays in the racial politics and interaction of modern Americans.

    asked by Anonymous
  94. math

    m=(monday tuesday wednesday ...sunday)

    asked by jennylen
  95. Geometry

    The radius of circle a (which is 6) is multiplied by 1/2. Describe the effect of the change of the area.

    asked by Emma
  96. science

    what is the importance of solid solutions and liquid solutions found at home

    asked by Tsunayoshi
  97. social studies help

    List 4 instances where the United States have paid reparations and note what positive impacts (if any)  these payments have made regarding American racial politics.

    asked by Anonymous
  98. Math

    At a carnival, Linda bought packs of tickets each. She has used of the tickets so far. How many tickets does she have left?

    asked by Brian
  99. History

    A. Killing Alexander Hamilton in a duel. B. Serving as Chief Justice of the Supreme Court for 34 years. C. Negotiating treaties that gained new lands for the U.S. D. Serving many terms in the House of Representatives. I think its B. But I am not sure, am I

    asked by Tina
  100. Engineering science

    a 50kg mass is suspended from a spring, causing it to extend by 30mm. calceolate the spring stiffness? The mass is then pulled down a distance of 90mm and released. calculate the frequency of the resulting motion, assuming that this is simple harmonic,

    asked by James
  101. writing

    in the topic sentence exercising three days a week will provide good physical health,what is the topic statement and what is the controlling sentence?

    asked by Jeff
  102. Physics

    . A weightlifter lifts a 76.0 kg barbell 2.60 m 20 times in 1.50 minutes. What is his power output (a) in watts and (b) in hp?

    asked by Anonymous
  103. Chemistry

    5.2 grams of magnesium metal are place in 400.0 mL of 1.0 M hydrochloric acid. The balanced equation for the reaction is: Mg + 2HCl = MgCl2 + H2. How many moles of H2 gas were produced?

    asked by Heidi
  104. Algebra

    quadratic equation who roots are -3 and -4 whose leading coefficient is 2 use the letter x to represent the variable

    asked by tbell
  105. programming

    1. Assume there are n-tyres that could be used by car, tricycle and bicycle. Write an algorithm to accept n-tyres and generate all the combinations of cars, tricycle and bicycle that would exhaust the n-tyres. 2. Assume S is a string of lower case

    asked by Anthony
  106. Algebra

    Quadratic equation whose roots are 5 and -5 with coefficient 3 using the letter x to represent the variable

    asked by tbell
  107. English

    In the following sentence the word alternate is used as a verb or adjective? There must be an alternate solution to this problem. Thank You

    asked by Josh
  108. algebra

    Quadratic equation whose roots are 5 and -5 with coefficient 3 using the letter x to represent the variable please show steps

    asked by tbell
  109. Math

    Alex needs 2&1/4 cups of flour ,he has 2&3/10 cups Draw a number line that shows both fractions.

    asked by Jessica
  110. Math

    Find the maximum or minimum value of function and the value of x when it occurs: -2x^2+5x+5.

    asked by Han
  111. Chemistry

    A butane lighter had a mass of 24.643 grams before lighting and a mass of 24.592 grams after. How many mL of CO2 were produced? Assume STP.

    asked by Heidi
  112. Calculus

    Assume v(t) = 6t - 18 on the interval [0, 6]. Find the total distance that the object traveled on [0, 6].

    asked by Jamie
  113. Criminology5019

    Discuss social learning theory and how the criminal justice responses may be formed based on the assumptions of social learning theory?

    asked by cassaundra
  114. statistics

    For a normal distribution, explain why we calculate the probability of a range of numbers instead of the probability of a single number on the lines below?

    asked by rehena
  115. math

    120 / 2p = 30

    asked by belle
  116. Algebra II

    The measure of the largest angle of a triangle is 90 more than the measure of the smallest angle, and the measure of the remaining angle is 30 more than the measure of the smallest angle. Find the measure of each angle. Show your work in obtaining your

    asked by Monique
  117. math

    I need help explaing percentage s to my daughter such as a bike cost $250 but it is on sale for%25 off

    asked by Mikayla