Most popular questions and responses by Madi
  1. Math

    1. Classify the triangle according to side length and angle measurement 2. Classify the triangle according to side length and angle 3. Classify the triangle with side lengths 4,4, and 4 4. Classify the triangle with the measuring 69,42, and 68, 5.

    asked on February 5, 2018
  2. Social Studies

    1. What dynasty ruled the Korean peninsula from AD 668 to AD 935? Meiji Qin Sill!@#$%^&* Tokugawa 2. What type of government ruled North korea after World War II communist**** democratic dictatorship oligarchy 3.Both Japan and the Koreas been influenced by

    asked on March 3, 2015
  3. Physics

    A block of mass 4 kg, which has an initial speed of 2 m/s at time t = 0, slides on a horizontal surface. Find the magnitude of the work that must be done on the block to bring it to rest. Answer in units of J. If a constant friction force of magnitude 5

    asked on November 18, 2015
  4. Spanish

    Fill in the blanks with the subjunctive form of the verbs. 1. Me alegro de que el ecoturismo (ser) un buen negocio (business). 2. Es una lástima que tú no (reciclar) el vidrio. 3. No crees que ellos (querer) usar energía solar. 4.Ojalá todos nosotros

    asked on July 3, 2012
  5. Chemistry

    An empty aerosol-spray can at room temperature (20 ◦C) is thrown into an incinerator where the temperature reaches 458◦C. If the gas inside the empty container was initially at a pressure of 1 atm, what pressure did it reach inside the incinerator?

    asked on March 19, 2017
  6. Spanish

    Fill in the blanks with words from the box. estés molesta plástico recicle sea Es posible que reciclar (1) una de las mejores formas de proteger el medio ambiente. Quizás no te das cuenta (you're not aware), pero reciclar vidrio, aluminio y (2) ahorra

    asked on July 3, 2012
  7. Biology

    Which of the following statements correctly compares the functions of a plant's roots and stem? The stem contains a high percentage of cells that provide structural support, unlike the roots. The stem is the first part of the plant to emerge from a seed,

    asked on September 28, 2012
  8. physics

    Two students on roller skates stand face-toface, then push each other away. One student has a mass of 95 kg and the second student 60 kg. Find the ratio of the magnitude of the first student’s velocity to the magnitude of the second student’s velocity.

    asked on February 16, 2016
  9. Math

    There are 144 people in an audience. The ratio of adults to children is 5 to 3. How many are adults? PLEASE HELP!

    asked on January 24, 2017
  10. Geometry

    So, I'm doing Surface Area of a Cone, L= 7in R= 8in I calculated B (pi * 8^2) so B (also known as Area of Circle) = 200.96 Now I'm working on SA and a little confused, SA=B+LA =pi*8^2 + pi*8*7=11,429.6 but the next step in my equation says I should have 2

    asked on May 17, 2019
  11. Physics

    A box of mass m2 = 3.1 kg rests on a frictionless horizontal shelf and is attached by strings to boxes of masses m1 = 1.6 kg and m3 = 2.6 kg as shown below. Both pulleys are frictionless and massless. The system is released from rest. After it is released,

    asked on October 3, 2012
  12. Physics

    A 4.17 g bullet moving at 506.1 m/s penetrates a tree trunk to a depth of 4.64 cm. a) Use work and energy considerations to find the magnitude of the force that stops the bullet. Answer in units of N. b) Assuming that the frictional force is constant,

    asked on November 18, 2015
  13. Physics

    The efficiency of a pulley system is 47 percent. The pulleys are used to raise a mass of 47 kg to a height of 7.0 m. The acceleration of gravity is 9.81 m/s 2 . What force is exerted on the rope of the pulley system if the rope is pulled for 28 m in order

    asked on November 18, 2015
  14. Algebra

    I'm re-doing a test for finals and I was working on this question, my teacher said to use radius since I originally did the diameter power of 2. Shape: Cylinder | Height: 27 m | Diameter: 34 m So the original equation; 3.14(pi) * 34^2 * 27 = 98055 My NEW

    asked on May 17, 2019
  15. algebra

    I have the question posted here ~ ht tps:// brainly .com/question/12664261 An image is attached, I really can't understand the perimeter of the triangle. triangle #1 = a= 18 b= 3 c= 42 triangle #2 = a= 9 b= 21 c=9 I tried calculators but they don't work.

    asked on May 15, 2019
  16. Physics

    A plane is flying 250 m/s west with a crosswind of 25 m/s north affecting the flight. What is the magnitude and direction of the plane?

    asked on February 23, 2015
  17. Math

    Pablo averaged 17.3 points for the first 6 basketball games. In his 7th game, he scored 24 points. Which of these is a reasonable conclusion about Pablo’s scoring average? A. His scoring average after 7 games was closer to 24 than to 17.3. B. His scoring

    asked on May 10, 2019
  18. Algebra

    Find the degree of -5w^3 -4w^2 +7w + 16. I don't understand.

    asked on May 6, 2019
  19. History

    {This isn't a test or quiz, it's personal curiosity, thank you!} What career or degrees are similar to archeology & paleography?

    asked on March 14, 2019
  20. statistics

    A credit card company estimates that the average credit card balance of Americans is $3,210. A statistics student wants to know whether this is true for citizens of her home town. Which hypothesis test would be most appropriate for addressing this

    asked on March 14, 2015
  21. Chemistry

    An experiment requires 0.3 M NH3(aq). The stockroom manager estimates that 15 L of the base is needed. What volume of 15 M NH3(aq) will be used to prepare this amount of 0.3 M base? Answer in units of mL

    asked on April 22, 2017
  22. math

    How many people were at a party if There were 105 handshakes at a party and if each person at the party shook hands with exactly once with every other person. The answer is 15. How do I write the problem?

    asked on October 25, 2010
  23. Physics

    A 59-kg housepainter stands on a 16-kg aluminum platform. The platform is attached to a rope that passes through an overhead pulley, which allows the painter to raise herself and the platform. (Ignore the mass of the pulley and any friction in the pulley.)

    asked on October 4, 2012
  24. Biology! pleaseee helppp

    About 70% of the human population can taste the bitter chemical phenylthiocarbamide (PTC), which is found in foods like broccoli. The allele, T, for tasting PTC is dominant over the allele, t, for not tasting it. Calculate the allele frequencies using the

    asked on November 10, 2012
  25. Math

    Mr. Williams just finished grading his science exams. The class average score on his exam was 79%. However, he forgot to grade John's paper. John scored an 86% on the exam. What is going to happen to the class average, once he includes John's score? A. The

    asked on May 10, 2019
  26. Math

    A prize machine randomly dispenses small toys. There are 1515 prizes left: 55 bouncy balls, 33 toy cars, 22 stickers, and 55 dinosaurs. Kai gets 22 prizes. What is the probability that they are both toy cars?

    asked on April 10, 2017
  27. Science - Waves & Electromagnetic Radiation

    What is happening in the diagram ; *my attempt to describe.* There is a modern sail boat on the surface of the water, point A is a set of waves (they look like the curved lines on per say your volume icon; ))) ) that go down to a boat wreck(point B) on the

    asked on May 17, 2019

    Write an equation that includes division that relates the number of minutes a sperm whale can stay under water.🤔

    asked on March 10, 2016
  29. Mathematics

    ( x + 8.92) - (0.75 - y ) + z = 11.89 X Options = -5.67 OR 5.67 Y Options = 1.25 OR -1.25 Z Options = -3.2 OR 3.2

    asked on May 8, 2019
  30. Algebra

    Please Help! Which quadratic rule represents the data in the table? x -1, 0, 1, 2, 3 y 6, 5, 6, 9, 14 a. y= -2x^2 + 5 b. y= -x^2 + 5** c. y= x^2 - 5 d. y= x^2 + 5

    asked on May 3, 2019
  31. Math - Help!

    Mrs. Higgins' Home Economics class collected data on the number of chocolate chips in cookies for two different brands, as shown in the dot plots below. The mean absolute deviation for each brand is 0.8. The difference between the mean number of chocolate

    asked on May 16, 2019
  32. Physics

    an astronaut drops a feather from 1.2 m above the surface of the moon. if the acceleration of the gravity on the moon is 1.62 m/s down , how long does it take the feather tho hit the surface

    asked on September 9, 2010
  33. Math

    Property taxes are placed on the tax roll based on a property's assessed value. If a tax district has a tax rate of 0.4%, then what is the tax owed on a house with an assessed value of $235,000? A. $940 B. $94,000 C. $9,400 D. $94

    asked on May 8, 2019
  34. 9th grade

    What is an example of natural selection in everyday life?

    asked on September 17, 2010
  35. physics

    a plane travels 5.0 x 10^2 while being accelerated uniformly from rest at the rate of 5.0 m/s. what final velocity does it attain?

    asked on September 9, 2010
  36. Math

    A ferris wheel has a diameter of 10 m and takes 24 sec to make one revolution. The lowest point on the wheel is 1 m above the ground. (4 marks) a. Sketch a graph to show how a rider's height above the ground varies with time as the ferris wheel makes a

    asked on July 23, 2014
  37. Physics

    A 7159 N piano is to be pushed up a(n) 2.26 m frictionless plank that makes an angle of 25.6 ◦ with the horizontal. Calculate the work done in sliding the piano up the plank at a slow constant rate. Answer in units of J.

    asked on November 18, 2015
  38. chemistry

    calculate the mass in grams of .354 moles of NH3

    asked on January 25, 2011
  39. Math palette of problems

    If 2/9 gallon of water fills a bucket 3/5 full, how many gallons of water are needed to fill the bucket?

    asked on January 30, 2014
  40. Biology

    The Kingdom Monera has been separated into two domains, the Archaea and the Bacteria. Which of the following was most important in prompting scientists to change the way these organisms were classified? a.)Major differences were discovered in the structure

    asked on May 27, 2012
  41. Statistics

    A student group claims that first year students at a university study 2.5 hours (150 minutes) per night during the school week. A skeptic suspects that they study less than that on average. He takes a random sample of 30 first year students and finds that

    asked on May 23, 2018
  42. math

    Find the periodic payment R required to amortize a loan of P dollars over t years with interest charged at the rate of r%/year compounded m times a year. (Round your answer to the nearest cent.) P = 30,000, r = 5, t = 20, m = 4

    asked on April 27, 2015
  43. physics

    A(n) 0.251 kg soccer ball approaches a player horizontally with a speed of 15.8 m/s. The player illegally strikes the ball with her hand and causes it to move in the opposite direction with a speed of 27.3 m/s. What is the magnitude of the impulse

    asked on February 16, 2016
  44. Chemistry

    What would have happened if Rutherford shot negative particles instead of positive particles in his gold-foil experiment? What would have happened if the nucleus in the gold-foil was actually negative, rather than positive, in his experiment?

    asked on June 1, 2015
  45. Geometry

    I need help with vertices! The vertices of triangle FGH are F(1,1), G(3,-5),H(6,0). Find the coordinates of the vertices after a refelection over the y-axis. I'm not sure how to do this. Is there a certain formula I need to know? The reflection across the

    asked on September 13, 2006
  46. CHEMISTRY: HESS'S LAW need help!

    I'm just overly confused on how to begin this especially with the fractions... please show step by step if you could. Quiz very Soon! Example A: H2(g)+1/2 O2 (g) ----> H2O(l) ... ΔH= -285.8 kJ N2O5(g) + H2O(l) -----> 2HNO3(l) ΔH= -76.56 kJ 1/2 N2(g) +

    asked on February 28, 2017
  47. Algebra

    If 4 notebooks weigh 2.8 pounds how do 6 notebooks weigh

    asked on September 2, 2014
  48. chemistry

    for this reaction: 2NO + heat N2 +O2 which way would the equillibrium shift if catalyst is added?

    asked on December 6, 2007
  49. Calculus

    1. use the definition mtan=(f(x)-f(x))/(x-a) to find the SLOPE of the line tangent to the graph of f at P. 2. Determine an equation of the tangent line at P. 3. Given 1 & 2, how would I plot the graph of f and the tangent line at P if : f(x)=x^2 +4,

    asked on June 2, 2018
  50. Physics

    A vector has a magnitude of 3.50m and points in a direction that is 145 degree counter wise from the x-axis. find the x and y components

    asked on July 18, 2017
  51. Someone please help!!! Math

    Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100°-Many b)A right triangle with three congruent sides-one c)A scalene triangle with side lengths of 7 cm, 3

    asked on May 23, 2017
  52. Math and Music

    I have to do a presentation on how math and music relate. I have found some things and facts but everything is so complicated. If someone could help explain to me how I can narrow my topic down and make a presentation that is simple but effective. It can

    asked on March 21, 2014
  53. Physics

    A block is sliding along a frictionless surface at a speed of 3.6 m/s. It hits a spring of spring stiffness constant k = 150 N/m. How far has the spring compressed when the block comes to a stop?

    asked on September 13, 2013
  54. physics

    A mass was dropped from a height of 20m. (a) find its speed at impact. (b) what can you say about the initial GPE of the mass and the KE of the mass just as it hits the ground?

    asked on March 15, 2011
  55. physical science

    The density of copper is 8.92 g/cm (cubed). If you plotted the mass of copper in grams versus the volume in cubic centimeters, what would the slope of the line be?

    asked on September 1, 2010
  56. Math

    36 is .9% of what number?

    asked on February 21, 2017
  57. Maths

    From looking at a periodic function, we had to decide on the equation for it. I got: y = 1.05 sin x2pi/11.72 + 1.55 1.05 is the 'a' value of the equation 2pi/11.72 is the 'b' value for the equation 1.55 is the 'd' value of the equation we were told not to

    asked on May 29, 2015
  58. Physics

    Paige and Julia are playing volleyball. Paige is in spiking position when Julia gives her the perfect set. The 0.226-kg volleyball is 2.29 m above the ground and has a speed of 1.06 m/s. Paige spikes the ball, doing 9.89 J of work on it. Determine a) the

    asked on September 13, 2013
  59. Government

    This case came about because President Marbury refused to honor the last-minute judicial appointments of Pres. Madison. A) True B) False 2. Marbury wanted the courts to issue of writ of mandamus, a court order forcing Jefferson to give him his commission.

    asked on July 21, 2012
  60. math

    Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100° b)A right triangle with three congruent sides c)A scalene triangle with side lengths of 7 cm, 3 cm, and 9

    asked on May 23, 2017
  61. physics

    A 20 g bullet is accelerated in a rifle barrel 45 cm long to a speed of 354 m/s. Use the work-energy theorem to find the average force exerted on the bullet while it is being accelerated. Answer in units of N.

    asked on November 18, 2015
  62. algebra 2

    what is the quadratic function that has the roots (4+3i) and (4-3i)

    asked on January 19, 2011
  63. Physics

    highway saftey engineers build soft barriers so that cars hittingthem will slow down at a safe rate. a person wearing a saftey belt can withstand an acceleration of 300 m/s how thick should barriers be to safely stop a car that hits a barrier at 110 km/h

    asked on September 9, 2010
  64. spelling

    there's a problem on my worksheet and it gose like this "to add the er suffix to words ending in a stressed sylable with one vowel and one consonant,___________________________." I've got that but then it asks for an example that's ware i'm stuck.

    asked on January 22, 2008
  65. Math

    If you roll a six-sided die times, how many possible outcomes are there?

    asked on April 10, 2017
  66. Chemistry

    Sarin is a nerve gas with a chemical formula of C4H10FO2P. What is the mass of one molecule of sarin?

    asked on January 22, 2017
  67. physics

    A(n) 23000 kg freight car is rolling along a track at 2.8 m/s. Calculate the time needed for a force of 1960 N to stop the car. Answer in units of s.

    asked on February 16, 2016
  68. Maths

    From looking at a periodic function, we had to decide on the equation for it. I got: y = 1.05 sin x2pi/11.72 + 1.55 1.05 is the 'a' value of the equation 2pi/11.72 is the 'b' value for the equation 1.55 is the 'd' value of the equation we were told not to

    asked on May 28, 2015
  69. government

    Which of the following is NO LONGER necessary for the right to vote?A) RegistrationB) CitizenshipC) Residency D) Land Ownership

    asked on July 5, 2012
  70. Art

    okay, ummm my teacher wants us to write down what a proportion and scale isand what an economy is in art. So what are those????!!! I'm so confused! :P plz help!

    asked on September 17, 2010
  71. chemistry home work

    2 examples on sediment plz reply fast...

    asked on November 21, 2008
  72. algebra

    in my workbook it says give the opposite of each expression and the problems are: -10t+21 -x+2z there are alot more but i thought if someone explained a couple of these to me maybe id understand the rest. idk just please help me!!!

    asked on August 26, 2008
  73. Texas State History

    What is absolute chronology A a chronology listing of specific dates B a detailed summary of a historic event C a listing of events that occurred during the same time period D a timeline that has been verified by professional historians.

    asked on October 2, 2018
  74. Math

    50 is what percent of 125? ___% I got 2.5 but I know for a fact that's not write cause I checked.

    asked on March 14, 2017
  75. physics

    why , regardless of the magnitude of the initial velocity, the maximum horizontal displacement for a projectile occurs when the angle is 45 degrees. Specifically, what happens when the angle is increased or decreased. How would you mention vector

    asked on February 2, 2016
  76. Math

    For the depth of water on Friday, 16 January 1998, the periodic function is: y = 1.05 sin 2pix/11.72 + 1.55 1.05 is the 'a' value 2pi/11.72 is the 'b' value 1.55 is the 'd' value we were told not to take into consideration the 'c' value in our equation 'y'

    asked on June 2, 2015
  77. Physics

    We have to work out the accepted value of a roller coaster cart (taking into account friction) when the mass is modified Here is the answer I got for 56.71 grams: 0=∆EGP+∆EK+Fd 0=mg(hf-hi )+1/2 m(v^2-u^2 )+Fd 0=0.05671 × 9.8 (0.075-0.786)+1/2×

    asked on June 2, 2015
  78. History

    Why was Ireland experiencing poverty in the late 1700's and early 1800's?

    asked on May 30, 2015
  79. History

    Why was Ireland experiencing poverty in the 1800's?

    asked on May 29, 2015
  80. Exponents

    Hi just curious when evalutating 5^-2 Would the answer be 25 Or would it be 0.4 = 2/5 I am lost

    asked on November 2, 2014
  81. math

    least to greatest 1/8,1/10,1/7

    asked on April 28, 2013
  82. communication

    I need to complete an outline and thesis statement on "Two female Chihuahuas living in the same household.I don't understand how and what information to write.

    asked on March 1, 2012
  83. Math

    How does ruling out possible answers help you find the correct answer

    asked on October 30, 2011
  84. Math

    Simplify the Ratio 4in : 1 yd

    asked on August 24, 2011
  85. Spanish

    Please unscramble these Spanish words mincara, carbaa, tauerdis, tagsur, suar, qarilaul, caars, sotrecnat, piormcatr, bajra, gelral.

    asked on June 1, 2011
  86. physics

    From a tree that is 15m tall, a fruit of mass 2kg falls to the ground. (a) find the initial GPE (b) find the speed at impact (c) find the KE at impact (d) how much energy was lost to heat and sound after the mass came to rest?

    asked on March 15, 2011
  87. physics

    A mass of 2kg was thrown straight up with a speed of 15m/s. (a) find the initial KE (b) how high does the mass rise? (c) what is the GPE of the mass at the highest point?

    asked on March 15, 2011
  88. science

    DNA is copied during a process called.?

    asked on May 12, 2011
  89. science

    The enzyme that opens up the DNA double helix during replication.?

    asked on May 12, 2011
  90. science

    5 reasons that the eagle helps the ecosystem?

    asked on October 29, 2007
  91. World History

    What was the Bill of Rights influenced by? This is an interesting article that will help you answer your question.

    asked on May 24, 2007
  1. Geometry

    I may not be understanding it, these are my sources for the formulas I'm using; ht tps:// calculate-base-cone-8178426.html (space in url) ht tps:// watch?v=pkWED4nyCHA&list=PL_Z-HL5bvIMtchPQhzT731CS9U3010h2E&index=2&t=0s

    posted on May 17, 2019
  2. Algebra

    Oops, yes, it was for volume, and there really were no rules for simplification so should I just leave it as it is?

    posted on May 17, 2019
  3. Math

    What just happened?

    posted on May 15, 2019
  4. algebra

    Sorry, there are spaces in the link, and really? I used the perimeter calculator to add all the sides together but it was saying the numbers weren't acceptable.

    posted on May 15, 2019
  5. algebra

    Jeez louis, ya'll just dump on Ms. Sue & then no one gets an answer to their question. People can have opinions but PLEASE keep them to yourself, for the better of everyone, what if I came up & called y'all 'stupid'. Please be respectful & kind to others,

    posted on May 15, 2019
  6. Math

    I got 18.257, so which answer would that be ?

    posted on May 10, 2019
  7. Mathematics

    Did my own work, the answer is the following; (5.67 + 8.92) - (0.75 - 1.25) + -3.2 = 11.89 Thank you for your help though @Reiny! :)

    posted on May 8, 2019
  8. Algebra

    oops, there are options, -5 16 14 3

    posted on May 6, 2019
  9. math

    Wow. That was. Wow.

    posted on March 18, 2019