1. stats

    The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at

    asked by sarah on October 31, 2013
  2. Language Arts

    When You Paraphrase A Line Of Poetry, What Do You Do a.You turn it into a question b.You put it in your own words c.You add humor to it d.You copy it down exactly Choose the best paraphrase of these lines from the limerick Said the fly, let us free let us

    asked by Sid.V on February 4, 2016
  3. Statistics

    According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women

    asked by Michael on November 9, 2013
  4. Calculus

    fter a foreign substance is introduced into the blood, the rate at which antibodies are made is modeled by f(t) = 27 t/8 t^2 + 3 where f(t) is in thousands of antibodies per minute, and t is measured in minutes with 0 ≤ t ≤ 60. Assuming that there are

    asked by Erika on November 13, 2010
  5. Please tell me if my answer is correct

    Total revenue is the total amount of money taken in by a business. An appliance firm determines that when it sells X washing machines, the total revenue, R, in dollars, is given by the polynomial R=232.94x-0.1x^2. What is the total revenue from the sale of

    asked by Student5 on February 28, 2014
  6. chemistry

    (a) Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a chamber filled with pure hydrogen and maintained at a constant pressure. At what depth from the surface will the concentration

    asked by kiril on December 7, 2012
  7. physics

    A car is rounding a circular curve of radius r on a banked turn. As the drawing indicates, there are two forces acting on the car, its weight mg and the normal force FN exerted on it by the road. Which force, or force component, provides the centripetal

    asked by sal64 on June 2, 2014
  8. 5th Grade Math

    I cannot get my brain around questions like this: 1/4 divided by 2/5 = 2/4 x ? I have 4 problems like this and even the example doesn't make sense - I may have copied it wrong off of the board. Can anyone help? Thank you! You invert the second fraction and

    asked by Kathleen on April 23, 2007
  9. Whitaker

    A professor records the time (in minutes) that it takes 16 students to complete an exam. Compute the SS, the variance, and the standard deviation assuming the 16 students constitute a population and assuming the 16 students constitute a sample. (Round your

    asked by Jay on February 25, 2018
  10. Math

    Postal regulations specify that a package sent by priority mail may have a combined length and girth of no more than 129 in. Find the dimensions of a cylindrical package with the greatest volume that may be sent by priority mail. Hint: The length plus the

    asked by Amber on April 4, 2011
  11. math

    1. Mrs. Macdonald wants to put a uniform border of tulips around the outside of her vegetable garden. Her vegetable garden is 20m by 28m. This border will look best if the area of the tulips border equal to the area of the garden. How wide should the tulip

    asked by malak on July 18, 2014
  12. science

    If the block has a mass 12.3 kg and slides a distance of 6.9 m down the inlcine, calculate the distance x the spring is compressed if the coefficient of kinetic friction between the block and the incline is 0.3 and the spring constant is 17.4 N/m. Input

    asked by xolani on March 14, 2013
  13. Math

    Please double check me Find each rate 240 pounds of fertilzer divide by 6 lawns Answer: 40 lbs/lawns Which is the better buy: 5lb of sugar for $4.75 or 20lb of sugar for $19.92 Answer 5lb Write the following proportions If Maria hit 8 home runs in 15

    asked by Sherri on February 29, 2008
  14. Math

    The top of a tree makes angles s and t with Points K and L on the ground, respectively, such that the angles are complementary. Point K is x meters and Point L is y meters from the base of the tree. A)In terms of x and y, find the height of the tree.

    asked by Kristin on September 10, 2015
  15. probability

    There are 100 people in line to board a plane with 100 seats. The first person has lost his boarding pass, so he takes a random seat. Everyone that follows takes their assigned seat if it's available, but otherwise takes a random unoccupied seat. What is

    asked by unowen on November 23, 2017
  16. math

    The points P (2, −1), Q (−4, −1) and R (−1, 3√3 − 1) are joined to form a triangle. Prove that triangle PQR is equilateral. I get that you use the distance formula to find the distance between these three points, which will prove that PQR is

    asked by anonymous on February 16, 2018
  17. Math

    I need help on this math problem. The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places. Can you check is my

    asked by HelpPlease on January 12, 2012
  18. statistics

    34 percent of the undergraduate students in a large university have full-time jobs. A random sample of 26 undergraduate students are selected. What is the variance of the number of students who have full-time jobs in such a sample? Calculate to two decimal

    asked by Scottie on March 8, 2012
  19. Maths

    An aeroplane is flying horizontally directly towards the city at an altitude of 400 metres. At a given time the pilot views the city lights of Melbourne at an angle of depression of 1.5 degrees. Two minutes later the angle of depression of the city lights

    asked by Rick on September 26, 2017
  20. Algebra HELP!

    If a sum of money is deposited in a savings account that is paying x percent annual interest (expressed as a decimal), then this sum of money increased by a factor of (1+x)^3 after 3 years. A. multiply this expression B. Evaluate the polynomial expression

    asked by Adriana on June 11, 2012
  21. Calculus

    An energy drink container in the shape of a right circular cylinder must have a volume of 12 fluid ounces (1 fluid ounce is approximately 1.80469 cubic inches). The cost per square inch of constructing the top and bottom is twice the cost of constructing

    asked by Katie on April 10, 2016
  22. Calculus

    A model for the food-price index (the price of a representative "basket" of foods) between 1984 and 1994 is given by the function I(t)=0.00009045t5+0.001438t4−0.06561t3+0.4598t2−.6270t+99.33 Where t is measured in years since midyear 1984, so

    asked by Danielle on March 25, 2015
  23. Calc

    A model for the food-price index (the price of a representative "basket" of foods) between 1984 and 1994 is given by the function I(t)=0.00009045t5+0.001438t4−0.06561t3+0.4598t2−.6270t+99.33 Where t is measured in years since midyear 1984, so

    asked by Anonymous on March 26, 2015
  24. PreCalc

    Approximate the solutions to the following equation on the interval [0,2π). Round your answer to four decimal places. sinθ=0.65 Apparently, there suppose to be two answers to this question with a comma separating​ both answers. I know because I've

    asked by chizoba on August 16, 2016
  25. math

    A student studying for a vocabulary test knows the meanings of 12 words from a list of 26 words. If the test contains 10 words from the study list, what is the probability that at least 8 of the words on the test are words that the student knows? (Round

    asked by titi on June 26, 2017
  26. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two hours a night sleep as she struggled to

    asked by Tobbo on June 6, 2011
  27. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two hours a night sleep as she struggled to

    asked by Nicci on July 25, 2011
  28. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two hours a night sleep as she struggled to

    asked by Angela on May 20, 2013
  29. Psychology

    Avis put off writing her term paper until three days before it was due. "It's not that big of a deal. I can whip it out in a couple of hours," she thought. As it turned out, this was not the case. She averaged two-hours-a-night sleep as she struggled to

    asked by Kasey on November 7, 2011
  30. ALGEBRA

    Find the range and the variance (correct to one decimal place). 77, 92, 93, 93, 98 (a) Find the range. (b) Find the variance.

    asked by Urgen please help on June 2, 2012
  31. Physics

    A plane traveling at 200.0 km/h attempts to land on a 250 m runway. The plane’s engines and brakes accelerate uniformly at –7.0 m/s2. Will the plane be able to land safely? Show all your work. Include any equations used, including the given and the

    asked by Vivian on March 5, 2015
  32. math

    Let f(t) = Q0at = Q0(1 + r)t. f(7) = 75.94 and f(9) = 91.89 (a) Find the base, a. (Round your answer to two decimal place.) a = (b) Find the percentage growth rate, r. (Round your answer to the nearest percent.) r = % I honestly have no idea how to

    asked by Stella on August 29, 2015
  33. Physic (gravity acceleration and angular velocity)

    Question Four A simple pendulum is used in a physics laboratory experiment to obtain an experimental value for the gravitational acceleration, g . A student measures the length of the pendulum to be 0.510 meters, displaces it 10 o from the equilibrium

    asked by Jay Peels on May 4, 2018
  34. Math

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

    asked by Alex on November 18, 2016
  35. Math

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

    asked by Alex on November 18, 2016
  36. Stats

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

    asked by Mark on November 18, 2016
  37. Physics

    Black Holes are suspected when a visible star is being noticeably pulled by an invisible partner that is more than 3 times as massive as the Sun. A red giant star is accelerated in a linear direction by gravity at 0.075 m/s2 towards an object that is 9.4

    asked by Alex on January 11, 2013
  38. 7th grade MATH

    ? reads,"7th place driver had a time that was 18.5 min slower thatn the driver ahead of him(2hr 43min 7sec), what was his time in hrs, min & sec.? What was the diff. btwn 1st and 7th? Calculate the winner's time in hrs. only(answer correct to 3 decimal

    asked by M. on January 8, 2010
  39. Analytical chemistry

    A solution is created using 2.1700 grams of Calcium Hydroxide (MW is 74.093) in a 1L volumetric flask. A 50 mL aliquot is then taken and aded to a 350 mL volumteric flask and filled to the line. Finally, a 10 aliquot of the that solution is taken and added

    asked by Sam on October 2, 2016
  40. economics

    Nair Inc. bought a "growing perpetuity" bond. The bond will pay 631.85 dollars at the end of year 1 and the payment will increase by 2.5 percent each year forever thereafter. Assuming the interest rate is 11.26% (forever), what is the maximum amount that

    asked by Rachel on February 5, 2011
  41. Math115

    The distance that light travels in 1 year (a light year) is 5.88 times 10 Superscript 12 miles. If a star is 4.6 times 10 Superscript 7 light years from Earth, what is this distance in miles? Enter your answer in scientific notation. Round the coefficient

    asked by Brita on October 3, 2016
  42. math

    building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. what is the length of the side of the lot opposite the 60° angle b. what is the length of the hypotenuse of the triangular lot. c. what

    asked by johnny on March 7, 2017
  43. pre calc

    A graph of y = cos(1/2 x) - sin( x) for -4ð x 4ð is shown in the figure. Assume z = 4. (the figure is just the graph) its asking me to find the x intercepts but i don't know how. it also asks me to find: The x-coordinates of the eight turning points on

    asked by g on August 3, 2011
  44. math

    Tina solved for the decimal value 0f (3/5*18) and got an answer of 5.4. Four of her classmates argued that her answer was not reasonable. Which of the following statements best explain why that value can not =5.4 A. the number 18 is a multiple of 3 , so

    asked by Ellie on March 30, 2013
  45. statistics

    Suppose that the heights of adult men in the United States are normally distributed with a mean of inches and a standard deviation of inches. What proportion of the adult men in United States are more than feet tall? (Hint: feet inches.) Round your answer

    asked by Demeisa on February 8, 2011
  46. Chemistry

    When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m. -2.16 x m/-1.86 = 1.16 1.16/ .010 kg of water= 116 1.150/116=

    asked by Marcus on February 10, 2013
  47. Algebra

    1. How long will it take for $900 to double if it is invested at 9% annual interest compounded 3 times a year? Enter in calculations or round to 3 decimal places. 1. It is take________ years to double. 2. How long will if the interest is compounded

    asked by Keonn`a:please help. on November 24, 2017
  48. statistics

    Suppose that the heights of adult men in the United States are normally distributed with a mean of inches and a standard deviation of inches. What proportion of the adult men in United States are more than feet tall? (Hint: feet inches.) Round your answer

    asked by Anonymous on October 1, 2010
  49. Math help

    Can someone give me simple formulas for the below problems. What I found is too confusing. A sample of 145 values is randomly selected from a population with mean, ì, equal to 45 and standard deviation, ó, equal to 23. (Give your answers correct to one

    asked by Gayle 79 on June 18, 2013
  50. Math

    Which statement is correct? A. All intergers are rational numbers. B. All irrational numbers are whole numbers. C. A real number must be a rational number. D. A repeating decimal is an irrational number I think it's either A or C.

    asked by Sammy on April 19, 2011
  51. physics

    hi every one i appreciate help as ineed answer as soon a jetplane discharges a jet at rate of 28kg/s with a velocity of 950 m/s relative to the plane if the forward speed of the plane is 875km/h what is the thrust developped on the plane and the power

    asked by georgie on December 15, 2012
  52. English composition

    This is my digital camera. I will explain this digiatal camera. Push the power button on the right on the top. Then you can use this one. When you push the power button, you can have the picture mode. Press the button on the far right on the top. Then you

    asked by John on November 3, 2008
  53. Pre-Cal (Help Plz)

    [Note: I've attempted these problems 4 times and I haven't been able to get any of them correct. I really need help with this, please.] Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not

    asked by Ashley on June 22, 2016
  54. Geometry

    Please check for me .Thanks A building cast a shadow 23 feet long when the angle of the sun is 52 degree. Find the height of the building to the nearest integer. Let X be the height of the building Tan 52 degree =x/23 23 tan 56 =294feet x = 23 tan 52 =

    asked by DANIELLE on June 21, 2007
  55. Math

    At 5:00 in the evening, a man who was 71 inches tall cast a shadow that was 163 inches tall. At the same time a flagpole cast a 756 inches shadow. How tall was the flagpole? Express your answer in two decimal places.

    asked by Jennifer on July 17, 2016
  56. mathematics

    from a point x a boat sails 6 km on a bearing of 038 degrees to a point y.it then sails 7 km from y on a bearing of 067 degrees to a point z.calculate the; a.distance XZ correct to two decimal places b.bearing of Z from X correct to the nearest degree

    asked by David simon michael on July 17, 2015
  57. Justice system

    1. Murder implies malice, whereas __________ does not. A. manslaughter B. willful homicide C. forcible rape D. aggravated assault is it A 2. __________ involves sexual intercourse with a corpse. A. Pederasty B. Bestiality C. Necrophilia D. Buggery is it C

    asked by Amy on May 6, 2013
  58. Physics

    As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover

    asked by Anon on September 23, 2014
  59. Maths

    A ship is sighted from the top of a lighthouse. The angle of depression from the lighthouse to the top of the ship is 45 degrees. The distance from the top of the lighthouse directly to the ship is 4 miles. Calculate the horizontal distance of the ship

    asked by Rose on January 7, 2016
  60. Economics

    What percentage of Americans GDP per capita is available to the average citizen of Mexico? Americas GDP $35060.00 Mexico GDP $8540.00 To find this answer, divide 8540 by 35060. Move the decimal point in your answer two places to the right to get the

    asked by LIsa on September 20, 2006
  61. Math (Trigonometry)

    Jasper walks 2 km due east. He then turns and walks 3 km northeast. a. How far is Jasper from his starting point? Round your answer to 2 decimal places. b. What is the direction of Jasper's destination in relation to his starting point? Round your answer

    asked by Marieke on April 13, 2009
  62. Algebra

    How long will it take for $1,200 to double if it is invested at 12% annual interest compounded 6 times a year? Enter in exact calculations or round to 3 decimal places. It will take years to double. How long will it take if the interest is compounded

    asked by Keonn'a Tarvin on November 28, 2017
  63. Statistics

    Hello, I have a few questions I'm working on for Statistics hw. Here's one of them - please help me, I'm stuck. It is known that 2% of the population has a general injection allergy. Suppose the Health Dept. randomly selected 250 individuals from the

    asked by Maggie on June 25, 2007
  64. Social studies

    why was the americans attack on manila harbor in the philippines important for a quick american victory in the spanish american war? The United States relied on war supplies from Asia and securing the Philippines protected those.••• The United States

    asked by Mackenzie on March 17, 2017
  65. English

    I'm posting you the ones I'm most doubtful of. 1) Where can I find a complete list of uncountable nouns in English? 2) What kind of television programmes do you like watching? I like watching current affairs programmes so I can keep up to date with what

    asked by Henry2 on November 3, 2011
  66. Statistics

    The probability that a student uses the Academic Resource Center on a regular basis is 0.26. In a group of 18 students, what is the probability that exactly 8 of them use the Academic Resource Center on a regular basis? Round your answer to 2 decimal

    asked by Sarah on June 3, 2013
  67. AP Statistics

    Suppose a Normal model describes the fuel efficiency of cars currently registered on your state. The mean is 24 mpg, with a standard deviation of 6 mpg. -Describe the fuel efficiency of the worst 20% of all cars. I know that you convert 20% into decimal

    asked by Courtney on November 10, 2007
  68. Chemistry

    You have found that 14.37mL of 0.162M sulfuric acid reacts with exactly 20.00mL of barium hydroxide solution of unknown concentration. What is the molarity of the barium hydroxide solution? Round your answer to 3 decimal places and include units. I know

    asked by Micah on May 31, 2017
  69. English

    1. Because Tom got ready for the game, he got up early. 2. Getting ready for the game, he got up early. (Does #1 grammatical? What about #2? Are both the same if they are grammatical?) 3. He ran away seeing me. 3-1. He ran away when he saw me. 4. You will

    asked by John on June 18, 2009
  70. Maths

    the angles of of evolution of the top of a hill from the City centres of two towns on either side of the hill are observed to be 30° and 60° respectively. if the distance of hill of the top from the city centre of first is 9 kilometre find in

    asked by Angel on March 22, 2017
  71. Math help

    Losing your bags during airline travel is not all that uncommon. Recently, an airline was cited for losing customers' baggage 8% of the time. A test is conducted by randomly selecting 20 customers for that airline and observing whether they had lost their

    asked by Mariah on December 9, 2010
  72. Physic (store energy)

    Question Four A simple pendulum is used in a physics laboratory experiment to obtain an experimental value for the gravitational acceleration, g . A student measures the length of the pendulum to be 0.510 meters, displaces it 10 o from the equilibrium

    asked by Jay Peels on May 3, 2018
  73. Finc 322

    Problem 7-17 Nonconstant Dividends [LO 1] Apocalyptica Corporation is expected to pay the following dividends over the next four years: $5.10, $16.10, $21.10, and $2.90. Afterwards, the company pledges to maintain a constant 5.25 percent growth rate in

    asked by Anonymous on October 13, 2014
  74. algebra

    Can someone correct them 9)Science:Jose rode his trail bike for 10miles. two-thirds of the distnace was over a mountain trail. How long is the mountain trail? My answer: 2/3-10=9 miles 10) perform the indicated operations 3 and 3/4 (divided by ) 1 and 3/8

    asked by Jasmine 20 on November 24, 2006
  75. Math

    Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))

    asked by Krista on May 30, 2013
  76. math/statistics

    In a manufacturing plant, three machines, A, B, and C, produce 37%, 36%, and 27%, respectively, of the total production. The company's quality-control department has determined that 1.5% of the items produced by Machine A, 2% of the items produced by

    asked by Rahat on June 26, 2017
  77. year 8 maths

    Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did

    asked by Maria Chiara on December 12, 2009
  78. Math PLEASE help

    Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))

    asked by Krista on May 31, 2013
  79. Math (please help steve)

    A crippled rook can move on a chessboard in the following way: from a square, it can move to an adjacent square sharing a common side, and every two consecutive moves must be at right angles (i.e., the rook makes a 90∘turn at every move). A cycle is a

    asked by Nick on August 7, 2013
  80. math (please help steve)

    A crippled rook can move on a chessboard in the following way: from a square, it can move to an adjacent square sharing a common side, and every two consecutive moves must be at right angles (i.e., the rook makes a 90∘turn at every move). A cycle is a

    asked by Nick on August 7, 2013
  81. Art

    Here is the last part of the same work. Thank you very much, Writeacher. 1) Rather that its utopian promise, Drexler’s book is remembered for the warning that as this technology developed it would be necessary to guard against the accidental release of

    asked by John on June 11, 2012
  82. English

    A poem by Linda pasta can be found here: "w w w. theatlantic . c o m / doc/200708 / linda-pastan-ash" (withoutspaces) I was wondering if my analysis of this poem is correct. This poem is about death. When you're cremated you are transformed from a body

    asked by Andrea on May 6, 2008
  83. Math

    A pair of newborn male and female rabbits is placed in an enclosure to breed. The rabbits start to bear young one month after their own birth. At the end of each month, they have another male-female pair, which in turn mature and start to bear young one

    asked by Tracy on November 18, 2013
  84. statistics

    Suppose that, for students who are enrolled in college algebra, 73 percent are freshmen, 48 percent are female, and 31 percent are female and are freshmen. Your answers below should be entered as decimals and rounded to three decimal places. Two students

    asked by Julie on March 19, 2012
  85. Chemistry

    Describe how a buffer behaves. Your description should include an explanation of why the addition of NaOH to the HAc solution formed a buffer. What happens to the pH when a small quantity of a strong acid or base is added to a buffer solution? What happens

    asked by Terrell on March 14, 2013
  86. Drivers ED

    When is the best time to use a three-point turnabout? A: When you are in heavy traffic B: When you are on a one way street C: when empty driveways are available D: When there is no other option**** Use perpendicular parking to park? A: diagonally to the

    asked by Marylyn on September 27, 2016
  87. Math (Trig)

    A ship leaves port at noon and has a bearing of S 25° W. The ship sails at 15 knots. How many nautical miles south and how many nautical miles west does the ship travel by 6:00 P.M.? (Round your answers to two decimal places.) Miles South? Miles West?

    asked by Rafael on October 21, 2015
  88. Math

    John takes 2 hours longer than Andrew to peel 400 pounds of apples. If together they can peel 400 pounds of apples in 7 hours, then how long would it take Andrew to peal the apples working alone? Please round your answer to three decimal places.

    asked by Josh on July 24, 2012
  89. college algebra

    It is 473,000,000 miles from Jupiter to the sun. Light travels 186,000 miles per second. How long does it take light to travel from the sun to Jupiter? (Express your answer in minutes. Round your answer to two decimal places.)

    asked by Anonymous on January 22, 2017
  90. Calculus

    Consider the function f(x)=3/x. a. Determine an expression, in terms of a and h, for the average rate of change between the points (a,f(a)) and ( a + h, f(a+h) ) for the function . Show all steps needed to find a simplified algebraic expression. b. Using

    asked by Anonymous on November 5, 2018
  91. Calculus

    Part of a circuit has two resistors connected in parallel as shown in the figure. R(1) is a constant resistor of 10 ohm, while R(2) is a variable resistor with resistance that varies at a rate of 2 ohms per minute. The total, or effective, resistance, R,

    asked by Cynthia on July 29, 2011
  92. calculus

    Part of a circuit has two resistors connected in parallel as shown in the figure. R(1) is a constant resistor of 10 ohm, while R(2) is a variable resistor with resistance that varies at a rate of 2 ohms per minute. The total, or effective, resistance, R,

    asked by NEED HELP NOW! on July 29, 2011
  93. Trig

    I need help setting these up. 1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. round to one decimal place. Theta= 35 degree, b=98 lbs, c=55lb 2.) Find the magnitude and direction angle for

    asked by Derrick on November 27, 2014
  94. 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 13, 2014
  95. math-moneyfractions

    i have some math questions that i really ,really,need help with asap if any body can explain some of these questions that will be great help.Ok here are 3 of the questions i am about to type now ok the first one says,whole 16 nickels a.circle 3/a of the

    asked by chemaya on February 19, 2009
  96. english

    Can someone help me find rhetorical devices used in this poem, "mother to son" by langston hughes. I know one is that the crystal stair is a metaphor but are there any others? well, son, I'll tell you: Life for me ain't been no crystal stair. It's had

    asked by Anonymous on September 14, 2008
  97. Physics

    At time t=0 a grinding wheel has an angular velocity of 26.0 rad/s. It has a constant angular acceleration of 25.0 rad/s^2 until a circuit breaker trips at time t = 2.50 s. From then on, the wheel turns through an angle of 440 rad as it coasts to a stop at

    asked by Samantha on November 8, 2008
  98. math

    How do the ideas of divisibility and multiples relate to the study of fractions? Show that 1,078 and 3,315 are relatively prime. What is the shortest length of television cable that could be cut into either a whole number of 18-ft pieces or a whole number

    asked by anonymous on February 18, 2011
  99. chemistry

    silver has density of 10.5 g/cm3 and gold has a density of 193.g/cm3 which liquid is denser silver and gold are liquids? That's news to me. You're given the ratios for density, which ratio is greater 10.5gm/cm^3 or 193gm/cm^3? It appears gold is over 18

    asked by delonte on September 10, 2006
  100. math

    There is a sudden growth of algae in a lake that kills other life in the water such that y tons of algae will be present after t weeks. The rate of growth of the algae is y′=ty+t and the initial amount of algae is 7 tons. How

    asked by Anna on February 6, 2018