1. trig

    find the exact value given that cosA=(1/3) in quad I, sin B=(-1/2) in quad 4, and sin C=(1/4) in quad 2 sin(A-B)?

    asked by stacey graham on March 26, 2010
  2. algebra

    Find the slope-intercept equation for the line with the indicated slope-intercept slope 5/8; y-intercept (0,-3)

    asked by sharon on July 11, 2014
  3. maths

    If alpha beta are the roots of a^2 +bx + c = 0. find the values of (beta/alpha^2)+ (alpha/beta^2)

    asked by chiew poh on August 11, 2013
  4. physics

    You are standing 7 feet from one speaker and 13 feet from another. Both speakers are producing the same sound. If the combined sound from both speakers is especially loud at your location, which of the following could be the wavelength of the sound? Choose

    asked by Jennie on December 8, 2011
  5. Physics

    A uniform rope with length L and mass m is held at one end and whirled in a horizontal circle with angular velocity w. You can ignore the force of gravity on the rope. (a) At a point on the rope a distance r from the end that is held, what is the tension

    asked by Saraf on February 20, 2014
  6. computers

    compute the unit price for products sold the program should input the name and price of an item and its weight in pounds and ounces. Then it should determine and display the unit price write a pseudo code program that will allow a user to find the unit

    asked by Anonymous on October 3, 2013
  7. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  8. math

    the world's largest cube puzzle in Knoxville measures 6 feet on each side. The scale factor between a standard cube puzzle and largest is 1/24. Find the surface area and volume of the standard cube puzzle. Answer is 0.375ft^2/0.015625ft^3 Not sure how they

    asked by mary on March 27, 2015
  9. chemistry

    in the laboratory, concentrated hydrogen chloride acid reacted with aluminium. hydrogen gas evolved was collected over water at 25 degree celcius and had a volume of 355 centimetre cube at a total pressure of 750mmHg.(the vapour pressure of water at 25

    asked by damilola on February 6, 2017
  10. Managerial Economics

    Suppose the two rival office supply companies Office Depot and Staples both adopt price matching policies. If consumers can find lower advertised prices on any items they sell, then Office Depot and Staples guarantee they will match the lower prices.

    asked by Dede on November 16, 2010
  11. Pre-Calc

    A piece of wire 100 cm long is cut into two pieces. One piece is bent to form a square and the other to form a circle. Let x equal the length of the wire used to form the square. A. write the function that represents the area of the two figures B.

    asked by Nadia on January 20, 2015
  12. Trigonometry

    A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 58°. A guy wire is to be attached to the top of the tower and to the ground, 50 m downhill from the base of the tower. The angle α in the

    asked by Liz on October 1, 2014
  13. Probability and math statistics

    We have two coins, C0 and C1, that looks identical but have different probabilities (0.5 and 0.7 respectively) of showing Heads. A coin is chosen at random and then is tossed X times until a Head comes up. Denote by H0 and H1 the hypotheses that the chosen

    asked by Anonymous on June 8, 2017
  14. Quantum Physics

    We will carry out some steps of the quantum factoring algorithm for N=91 (a) What is the period k of the periodic superposition set up by the quantum factoring algorithm if it chooses x=8? I.e. what is the period of f(j)=8j(mod91) (b) Using your answer to

    asked by ss01 on October 12, 2013
  15. Ethologists

    hi my names Rebecca and i need to write an assignment, i need a little help! i need too find the best Ethologists! as i need to compare them and write about who is the best one and why. does anyone know if they can help me and give me a few names of good

    asked by Rebecca on September 2, 2011
  16. physics

    A small disk of radius r is glued onto a large disk of radius R that is mounted on a fixed axle through its center. the combined moment of inertia of the disks is I. A string is wrapped around the edge of the small disk and a box of mass m is tied to the

    asked by Anonymous on November 3, 2016
  17. managerial economics

    Suppose the two rival office supply companies Office Depot and Staples both adapt price-matching policies. If consumers can find lower advertised prices on any items they sell, then Office Depot and Staples guarantee they will match the lower prices.

    asked by jean on March 18, 2008
  18. Electricity

    Very very urgent please help me... A small ball with mass =0,4g charged with electricity= 3x10^(-10) coulomb is united with the edge of a silk rope with length=8cm. The other edge of the rope is on a big insulating material with concentration of the

    asked by Ryan on November 2, 2008
  19. algebra

    the local high school is setting up square-shaped lunch tables in the cafeteria. each table has an area of 12x^3-4x^2 square feet. if sqrt 3x+1 tables are put end to ed to form a banquet table, how long will the banquet table be? assume x>1/3 part 1: use

    asked by melissa on April 10, 2013
  20. chemistry

    hi, i am trying to develop a lab where i find the solubility of Sodium acetate. I was wondering in i was in the right path. We are given these three compounds: Acetic acid aka vinegar baking soda (sodium hydrogen carbonate) 0.100mol/l Naoh(aq) 0.100/l

    asked by chemistrybuddy on June 2, 2008
  21. Math

    The pedals of a bicycle are mounted on a bracket whose centre is 29.0 cm above the ground. Each pedal is 16.5 the bracket The bicycle is pedalled at the rate of 12 cycles per minute. a) Write an equation for the height of one pedal at time t, in seconds,

    asked by Grace Stone on May 24, 2017
  22. statistics

    B} The average number of mosquitoes in a stagnant pond is 70 per square meter with a standard deviation of 8. If 36 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 70.9 mosquitoes

    asked by Loren on November 12, 2014
  23. math . . .

    To measure the height of an inaccessible cliff on the opposite side of a river, a surveyor makes the measurements shown in the figure ( one angle is 33.1 & the other i 69.4) . If distance d = 202 meters and Ð b = 50.0°, find the height of the cliff. the

    asked by Thank You For The Help on March 26, 2010
  24. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  25. physics

    a ball is projected horizontally from the edge of a table that is 0.433m high, and it strikes the floor at a point 1.84m from the base of the table. the acceleration of gravity is 9.8m/s^2.what is the initial speed of the ball? how high is the ball above

    asked by rista on May 20, 2011
  26. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  27. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  28. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  29. Chemistry

    This is for a lab about determining the equilibrium constant. Given: 5.00mL of .203M Fe(NO3)3 mixed with 100mL of .00205M KSCN in a .5M HNO3 solvent for both solutions. Resulting absorbance for solution is .315. How can i find the total Fe, [Fe*] and SCN,

    asked by Bob on April 3, 2011
  30. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  31. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  32. college physics

    In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force

    asked by suhani on September 18, 2013
  33. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  34. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  35. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  36. math

    1: What is the amount of sales tax owed on a $39 jacket if the tax rate is 5%? A)$1.85 B)$1.90 C)$1.95

    asked by HELP ASAP on May 7, 2019
  37. college physics

    In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force

    asked by vishal on September 21, 2013
  38. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  39. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  40. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  41. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  42. PHYSICS

    In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force

    asked by smita on September 13, 2013
  43. physics

    In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force

    asked by suhani on September 16, 2013
  44. algebra

    The equation h = -16t^2 + 112t gives the height of an arrow, shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. Find the time it takes for the arrow toreach a height of 180 ft. put in

    asked by jamie on July 18, 2007
  45. physics

    Assume the proton is at rest initially. The charge on the proton is 1.602×10−19 C and its mass is 1.67 × 10−27 kg. If the magnetic field is 2.85 T and the potential difference is 2.29 MV, find the magnitude of the force on the proton after the

    asked by Anonymous on March 13, 2013
  46. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  47. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  48. maths PLEASE HELP

    A mixture contains two chemicals, A and B, with masses mA and mB. The total mass of the mixture, m, remains constant. B is converted into A at a rate that is inversely proportional to the mass of A and directly proportional to the square of the mass of B

    asked by jessie on March 9, 2010
  49. math calculus

    . Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid.

    asked by Paige on December 3, 2012
  50. Managerial Economics

    Suppose the two rival office supply companies Office Depot and Staples both adopt price-matching policies. If consumers can find lower advertised prices on any items they sell, then Office Depot and Staples guarantee they will match the lower prices.

    asked by Dee on June 18, 2008
  51. PHYSICS

    In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force

    asked by suhani on September 17, 2013
  52. biology

    The ability to roll the tongue (R) is determined by a dominant gene while the recessive gene results in the ability to roll the tongue (r). A man and his wife can both roll their tongues and are surprised to find that their son cannot. Explain this by

    asked by liam on November 9, 2009
  53. physics

    A cup of coffee (with lid) is enclosed in an insulated cup 0.5 cm thick in the shape of a cube 9.7 cm on a side. The thermal conductivity of the cup is 0.0002 cal/s x cm x C. The temperature of the coffee is 71 degrees Celsius and the temperature of the

    asked by Isabell on November 20, 2010
  54. Chemistry

    Please help me with these questions: 1. Consider the equation:2Na+ 2H2O-->2NaOH +H2 -If 92.0g of sodium is reacted with 76.0g of water until the reaction goes to completion, which reactant will remain and in what quantity? A: I know that H20 is the

    asked by Sally on January 27, 2011
  55. Japanese (extramural: linguistics/culture/history)

    Hallo, my name is Joshua. I'm currently doing my matric in south africa, which is most unfortunate, because south africa doesn't have much to offer in terms of "foreign languages/culture." (Moving to england in a month. Perhaps it has more to offer^^) I am

    asked by Joshua on November 3, 2007
  56. design

    In an effort to promote a better understanding of what design is and how to discuss it, your firm is having a weekly series of meetings. Within your first week, please find a design to include in your presentation that is different than the material you

    asked by sue on November 15, 2008
  57. To SraJMcGin

    Hello, we have to do another essay and this one is on the playboy of seville in english. I need help trying to find the passages for this question: There are a few important passages in the play where characters desribe their feelings in terms of ice and

    asked by Alicia on October 28, 2008
  58. English

    Writeacher, Thank you for your help!! I am trying to rewrite a cover letter, trying to reword so I can put some of the requirements for the job into my cover letter. One of the paragraphs reads - You will find me a loyal, personable, and dedicated

    asked by Ann on August 8, 2008
  59. managemnet

    what elements should be present in a appraisal system? Can this be like pay for performance type thing or am i going in the wrong direction. Since this is not my area of expertise, I searched Google under the key words "business appraisal system" to get

    asked by lois on July 23, 2007
  60. Calulus/Optimization

    I don't understand how to solve optimization problems, (like here's the volume of a box, find the least amount of material it would take to make such a box). Is there a tutorial or some general step by step instruction on how to do these? Thanks in

    asked by Amy on April 1, 2007
  61. Math

    2. Find the product of 2 1/2 and 2/5. a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 3. Which of the following makes the statement true? 1/5^0 = ? a. 1 b. -1 c. -5 d. 0 4. The area of a certian state is 840,000 square miles. What is this area in scientific

    asked by Nyla on September 14, 2012
  62. Foreing languages

    Could you check if everything is correct, Writeacher? 1) My husband and I would like to spend the period from August ... to August .. in . We are looking for a four-star hotel on a sea front , which offers a a kids’ club as well as a playground where my

    asked by John on July 9, 2012
  63. Math

    I need help!! please One morning in Helena Montana the temperature was 12 degrees Fahrenheit Below zero. By noon the temperature had risen to 25°F Which expression can be used to find the temperature in degrees F at noon that day in Helena Montana? A.

    asked by Soup on October 13, 2017
  64. Calulus

    Consider the following function. f(t) = 3t2 − 3 (a) Find the average rate of change of the function below over the interval [3, 3.1]. (b) Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. (at t =

    asked by Sophie on October 15, 2010
  65. collegeMath

    The force in newtons needed to stretch a certain spring x centimeters from its resting position is given by the function f(x)=8x^2 where 8 is the spring constant. Find the force needed to stretch the spring 4 centimeters.

    asked by Donovan Henry on November 19, 2010
  66. math

    craig reads a book with 10 pages in the morning a book with 26 pages before dinner and a book with 10 pages after dinner find the mode of the number of pages in the books that craig read

    asked by lily on September 5, 2013
  67. Algebra II

    Two sides of a triangle are equal in length. The length of the third side is three meters less that the sum of the lengthsof the other two sides.Find the length of the longest side of the triangle if its perimeter is 29 meters. Please help. Thanks.

    asked by Lucy on October 23, 2007
  68. Math please help.

    Find the function that has the greater rate of change As x increases by 1, y increases by 3. The graph- x: -1 | 0 | 1 y: 0 | 2 | 4 A. the slopes are equal B. the graph has a greater slope C. the function rule has a greater slope**** D. none of the above

    asked by Anne on May 3, 2015
  69. Math

    A pencil, eraser and notebook cost a total of $1. If a pencil costs more than 2 erasers, 8 erasers cost more than 3 notebooks, and 5 notebooks cost more than 6 pencils, find the cost of a pencil. I don't know what to do. please help!!!!

    asked by Tianze on March 16, 2016
  70. Math

    A group of adults and kids went to see a movie. Tickets cost $7.00 each for adults and $4.50 each for kids, and the group paid $64.00 in total. There were 4 fewer adults than kids in the group. Find the number of adults and kids.

    asked by Jamie on June 20, 2015
  71. Word Problem

    The surface area of a balloon is given by S(r) = 4(pie)r^2, where r is the radius of the balloon. If the radius is increasing with time t, as the balloon is being blown up, according to the formula r(t)=4/5t^3,t>=0, find the surface area S as a function of

    asked by coried on August 26, 2009
  72. Stats

    The probability that Jack plays guitar on a raining day is 0.6 and on a sunny day is 0.5. The probability that is rains tomorrow is 0.8. Find the probability that Jack will not play guitar tomorrow.

    asked by Ashley on February 8, 2014
  73. sanket study centre

    In triangle ABC p,q,r such that they lie interior of triang ABC and AP=AR and all the three sides of triangle PQR are scalan if area of triangle PQR is 100 then find area of triangle ABC

    asked by sanjay on November 11, 2015
  74. Geometry

    The perimeter of a Triangle(MNO) is equal to the perimeter of square ABCD. If the sides of the triangle are represented by 4x+4, 5x-3, and 17, and one side of the square is represented by 3x, find the length of a side of the square.

    asked by LP on January 6, 2013
  75. Statistics

    The probability that Jack plays guitar on a raining day is 0.6 and on a sunny day is 0.5. The probability that is rains tomorrow is 0.8. Find the probability that Jack will not play guitar tomorrow? Is it 32%?

    asked by Ashley on February 18, 2014
  76. math-fractions

    Each band member had 12 tickets to sell, Jamie sold 9 of his tickets Matt sold 6 of his tickets. Using fractions find the total number of tickets sold by Jamie & Matt

    asked by sam on February 11, 2014
  77. algebra 2

    Three friends share the cost of a pizza. The base price of the pizza is p and the extra toppings cost $4.50. If each person’s share was $7.15, which equation could be used to find p, the base price of the pizza?

    asked by hannah on October 24, 2013
  78. math

    The probability that Jack plays guitar on a raining day is 0.6 and on a sunny day is 0.5. The probability that is rains tomorrow is 0.8. Find the probability that Jack will not play guitar tomorrow? Is it 32%?

    asked by Ashley on February 18, 2014
  79. Maths

    “A solid consists of a right circular cylinder surmounted by a cone of the same diameter. If the height of the cone is 'h' and the volume of the solid is 3 times the volume of the cone , then find the height of the cylinder.”

    asked by Megha on March 17, 2016
  80. algebra

    The perimeter of a triangle is 45 centimeters. Find the lengths of its sides, if the longest side is 7 centimeters longer than the shortest side, and the remaining side is 2 centimeters longer than the shortest side.

    asked by LaTasha on May 29, 2016
  81. Math

    The height of a Norway Spruce is 10 feet. 2 1/2 feet per year, how long will it take the tree to reach the height of 25 ft? Write an equation that could be used to find how long it will take for the tree to reach a height of 25 ft.

    asked by Amy on September 6, 2016
  82. maths

    a spherical ballon is being inflated at the rate of 10 cu in/sec.find the rate of change of area when ballon has a radius of 6 inch. (a)3.33 in2/sec (b)3.67 in2/sec (c)3.11 in2/sec (d)none of these

    asked by ankur on June 6, 2013
  83. Algebra

    The difference of two integers is 6. The sum of twice the smaller and the larger is 72. Find the integers. The sum of 3 times a larger integer and 2 my answer the lager integer is 192 and the smaller integer is 72

    asked by liliy on June 23, 2016
  84. math equation

    If the side of a square are extended to form a rectangle. One side of the square is extended by 5cm and the other side by 2cm. The area of the rectangle is 130cm^3. Find the length of the side of the square

    asked by Charlie Benj on June 30, 2016
  85. Math

    Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12

    asked by Maya on January 26, 2012
  86. Math

    Ned caught 1/3 pound of fish. Sarah caught 5/12 pound of fish. Jessica caught 1/6 pound of fish. Which diagram shows how to find how many pounds of fish they caught altogether. 2/6 2/6 1/6 3/12 5/12 6/12 1/3 5/12 1/6 1/12 5/12 1/12

    asked by Maya on January 26, 2012
  87. statistics

    A bag contains 8 white and 3 black counters. Two counters are drawn, one after the other. Find the probability of drawing one white and one black counter, in any order. i) If the first counter is replaced ii) if the first counter is not replaced.

    asked by navin on April 19, 2017
  88. Math

    The formula N = 10(4') gives N, the number of bacteria present in a culture after t hours. How many hours does it take for the number of bacteria to grow to 2,560? a. 2 hours b. 3 hours c. 4 hours d. 5 hours The answer is c., but is there another way to

    asked by Angie on June 14, 2009
  89. discrete probability distribution (help please!)

    a machine has 7 identical components which function independently. the probability that a component will fail is 0.2. the machine will stop working if more than three components fail. find the probability that the machine will be working.

    asked by anonymous on April 12, 2010
  90. 2nd Grade Math

    Craig reads a book with 10 pages in the morning, a book with 26 pages before dinner, and a book with 10 pages after dinner. Find the mode of the number of pages in the books that Craig read.

    asked by Leelee on September 8, 2010
  91. 8th grade math

    A model car is a 1/43 scale model of the original car. What is the scale factor needed to find the dimensions of the original car? model car=4.2" long, 1.3"tall, and 1.6" wide?

    asked by Kory on January 16, 2013
  92. Chemistry

    How many grams of iron at 200.0 c must be placed in 200.0 g of water at 18.0 c so that the temp of both will be 30.0 c ? Okay so the SH of iron = .106 This is what I have set up.. Not sure if I'm going at this the right way.. (.106) (m) (170.0) = (1.0)

    asked by John on October 4, 2015
  93. Math

    Plane A leaves the airport. One hour later, Plane B leaves the same airport on the same course. It catches up to Plane A in 2.5 hours. The average speed of Plane B is 300km/h faster than Plane A. Find the speed of each plane.

    asked by Jessica on March 17, 2015
  94. stat

    a machine has 7 identical components which function independently. the probability that a component will fail is 0.2. the machine will stop working if more than three components fail. find the probability that the machine will be working.

    asked by anonymous on April 12, 2010
  95. geometry

    In triangle ABC, if line BC is one inch longer than line AB, line AC is 10 inches shorter than the sum of line BC and line AB , and the perimeter of triangle ABC is 72 inches, find the length of line BC?

    asked by meghan on November 3, 2010
  96. Calculus

    An error in the measurement of the radius of a circle results in an error in the computation of its area. Find and interpret the sensitivity of area (a) of a circle to the measurement of radius, r, when the radius r=2 meters.

    asked by jan on October 22, 2016
  97. maths

    a man travelled a distance of 22km in one hour partly in a car at a speed of 30 km/hour and partly on a motorcycle at 18km/hour. find the distance travelled by him in the car

    asked by usha on September 25, 2017
  98. algebra 2

    the perimeter of a triangle is 49 centimeters. find the lenghts of its sides, if the longest side is 9 centimeters longer than the shorter side, and the remaining side is 4 centimeters longer than the shorter side.

    asked by takeidra on November 3, 2011
  99. trig

    Find the values of the other five trigonometric functions for angle S. a) cos S=1/3 and the terminal side of angle S is in Q1. b) tan S=-10/7 and the terminal side of S is in Q2. c) sin S=-5/14 and the terminal side of S is in Q3. d) sec S=13/11 and the

    asked by Chelci on October 25, 2011
  100. trig

    Find the values of the other five trigonometric functions for angle S. a) cos S=1/3 and the terminal side of angle S is in Q1. b) tan S=-10/7 and the terminal side of S is in Q2. c) sin S=-5/14 and the terminal side of S is in Q3. d) sec S=13/11 and the

    asked by Chelci on October 25, 2011

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