Questions Asked on
June 7, 2016

  1. Math

    1. The length of the hypotenuse of a 30-60-90 triangle is 7. Find the perimeter. A) 7/2+21/2 sqrt 3 B) 21+7 sqrt 3 C) 7+21 sqrt 3 D) 21/2 + 7/2 sqrt 3 Could someone please help me, I don't know how to do this. Thank you!

    asked by Tim

    can you guys help me with this question 1. What effect does Mrs. Winterbottom’s decision have on Phoebe? A.Phoebe is humiliated by her mother’s decision to leave. 2.Phoebe’s behavior becomes increasingly tense and ornery.***** 3.Phoebe is withdrawn

    asked by Penny
  3. math

    A toy rocket is launched straight up into the air with an initial velocity of 60 ft/s from a table 3 ft above the ground. If acceleration due to gravity is –16 ft/s2, approximately how many seconds after the launch will the toy rocket reach the ground?

    asked by mitch
  4. LA walk two moons

    1. Which of the following passages from the text best illustrates sal's feelings about her new home in Ohio? I did not think we would ever leave, and yet i did not want to leave. Tiny, squirt trees. Little birdhouses in a row-and one of these birdhouses

    asked by help me
  5. Math Help Please

    What are the ratios for sin A and cos A? The diagram is not drawn to scale. Triangle Description- AB = 29 AC = 20 BC - 21 A. sin A = 20/29, cos A = 21/29 B. sin A = 21/29, cos A = 20/21 C. sin A = 21/29, cos A = 20/29****? D. sin A = 21/20, cos A = 20/21

    asked by Battia Anne
  6. Math

    1. What is the area of the circle in terms of pi? The diameter is 4.9. A) 9.8 pi m^2 B) 12.005 pi m^2 C) 6.0025 pi M^2 D) 24.01 pi m^2 I've redid this problem over and over again, and I keep getting an answer that isn't one of the choices. The closest my

    asked by Tim
  7. Math

    1. In ABC, A is a right angle, and m B=45*. Side CA also has a length of 17ft just to let everyone know. What is the length of BC? If the answer is not an integer, leave it in simplest radical form. The diagram is not shown to scale. A) 54 ft B) 17 sqrt 3

    asked by Tim
  8. math

    A grapefruit is 8% heavier than an orange, and an apple is 10% lighter than the orange. By what percent is the orange heavier than the apple?

    asked by Anonymous
  9. Math help plz??

    24. A radio signal travels at 3.00 x 10^8 meters per second. How many seconds will it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 3.54 x 10^7 meters? im guessing its 118 seconds but

    asked by othilia
  10. value

    Two Men, P And Q Set Off From A Base Camp R Prospectively For Oil.P Moves 20km On A Bearing Of 205 And Q Moves 15km On A Bearing Of 060.What Is The Distance Of P From Q

    asked by value
  11. Math

    1. The volume of a sphere is 1476 pi m^3 . What is the surface area of the sphere to the nearest tenth? A) 629.9 m^2 B) 672.4 m^2 C) 1,344.8 m^2 D) 1,973.5 m^2 Is the answer D?

    asked by Tim
  12. Math

    Let a, b, and c be unit vectors, such that a+b+c=0. Show that the angle between any two of these vectors is 120 degrees. I proved this geometrically, but now my teacher wants a proof using vectors, and I don't know what to do.

    asked by Katie
  13. Language arts 7 B

    Pleas help if you read the story dragon wings or if ur in connexus 10. Think about various conflicts in the novel in the fight and describe one event from the novel and were present a cause-and-effect relationship that creates conflict explain affect the

    asked by Luxi_pux
  14. Math

    1. O is the center of the given circle. the measure of angle O, is 134. The diagram is not drawn to scale. Assuming that the lines that appear to be tangent are tangent, what is the value of x? A) 67 B) 46 C) 314 D) 268 can someone please help? I saw an

    asked by Tim
  15. English

    Read the following poem and then respond to the question below: “I’m Nobody! Who are you?” By Emily Dickinson I’m Nobody! Who are you? Are you – Nobody – too? Then there’s a pair of us! Don’t tell! they’d advertise – you know! How

    asked by Annie
  16. chemistry

    The equilibrium constant for the reaction Cu3(PO4)2(s) 3 Cu2+(aq) + 2 PO43–(aq) is K = 1.40 x 10–37. Suppose that a beaker is filled to 1 L with a solution containing [Cu2+] = [PO43–] = 10.0 nM, and 300.0 g Cu3(PO4)2 . Which of the following

    asked by jess
  17. Science

    Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons? A. 20/15 D B. 15/20 D C. 35/15 D D. 15/35 D C?

    asked by Ms. Sue Please help me
  18. Maths

    ABCD is a rectangle with angle BDC =28°.Determine angle DBC

    asked by Ridhyma
  19. maths

    the sum of a number and its square is one and a half times their difference. what is the number?

    asked by tony
  20. MATH

    In a race, a triathlete runs 1/3 of total distance, cycles 2/5 of the total diatance and swims the ramaining distance. he swim 1.200 meters. What is the total distance of the race?

    asked by Martha
  21. Math(PleaseHelp, NewEquation SameDescription)

    Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree

    asked by Cameron
  22. Pre-Calculus

    The Fiedler family has up to $130,000 to invest. They decide that they want to have at least $40,000 invested in stable bonds yielding 5.5% and that no more than $60,000 should be invested in more volatile bonds yielding 11%. How much should they invest in

    asked by Alexa
  23. Of Mice and Men (CHECK!)(Reed)

    1. Who are 4 outsiders in the text? a. George, Candy, Crooks, Lennie b. Curley, Curley's Wife, the Boss, Slim c. Candy, Curley's Wife, Lennie, Crooks d. Crooks, Curley, Lennie, Whit A: c 2. When Lennie thinks about the ranch he says-- a. We gonna live in a

    asked by Victoria
  24. Accounting

    When M. Landis invests $20,000 in the corporation in return for shares of stock, is the Retained Earnings account affected? Explain your answer.

    asked by Stella
  25. social studies

    1. What does Eid-ul-Adha celebrate? a. the birth of the prophet Muhammad b. Abraham's sacrifice of a lamb to God *** c. Muhammad's first revelation 2. What is the message of "The Tale of the Crow and the Civet"? a. Everyone should mind their own business

    asked by lun
  26. Physics

    •A pendulum of mass of 600g is dropped from a height of 30cm. •Calculate the GPE it had (g = 9.81) •Tell me how much KE it will have at the bottom of its swing (assuming no air resistance) •Assuming all the GPE is transferred to KE, what is the

    asked by Dominic
  27. Math

    The sum of three consecutive numbers is 66.Form an equation to represent this information and find these numbers

    asked by Hazel
  28. Science

    What mass of iron metal can be obtained from the reaction of 45.6kg Iron (III) oxide Fe3O4 with carbon monoxide CO as given in the following equation? Fe3O4 + 4CO = 3Fe + 4CO2

    asked by Road
  29. Language Arts

    Which of the clues from the text best indicates that something bad is going to happen to Gram? a. the wind changed its tone and told Sal to slow down b. the smell of Gram's baby powder makes Sal feel sad c. Sal continually prays for Gramps not to get them

    asked by Please Help
  30. Math

    1. What is the equation of the circle with center (-4,-3) that passes through the point (6,2)? A) (x-4)^2+(y-3)^2=25 B) (x-4)^2+(y-3)^2=125 C) (x-(-4))^2+(y-(-3))^2=25 D) (x-(-4))^2+(y-(-3))^2=25 I'm really not sure how to do this at all, so any help would

    asked by Tim
  31. Math

    3. A quadrilateral ____________ has one pair of parallel sides. A) always B) sometimes C) never D) inconclusive Is the answer B? I kinda wanna say D, but I believe it's B.

    asked by Tim
  32. Math

    1. A square is __________ a rectangle. A) always B) sometimes C) never D) inconclusive One site about rectangles said, yes. But I'm not sure that's the answer.

    asked by Tim
  33. mat

    Three times a number plus 4 equals 15 times the reciprocal of the number. Determine the number.

    asked by jason
  34. math

    a piece of wood is divided into three pieces in the ratio 3 : 4: 2. the length of the longest piece is 72 cm. calculate the length of the pices of wood

    asked by anaon
  35. Physics

    An electric heater that produces 860 W (1 W = 1 J/s) of power is used to vaporize water. How much water at 100 0C can be changed to steam in 5 min by the heater? Use Lv = 2.25x106 J/kg for water at 100 0C and express your final answer in grams.

    asked by Anonymous
  36. Math (money)

    After spending $200 of her money on a dress. Lily spent 20% of her remaining money on a bag. She then spent $131 on a pair of shoes. In the end, she had 20% of the original amount Lily had at first. What is the original total amount she had at first? My

    asked by user1234
  37. Geometry

    ABGF is a square with half the perimeter of square ACDE. GD = 4in. Find the area of the shaded region. Please help me work this problem out I am stuck. It's a square and in the top right corner there in another square inside it that is 1/4 the size of the

    asked by Pleasehwlp
  38. Maths

    Work out integers,I need to understand them

    asked by Zama
  39. Physics

    A thermos bottle contains 250 g of coffee at 88 0C. You then decide to add 27 g of milk at 5 0C. What is the equilibrium temperature of the mixture? Assume no heat is loss to the thermos bottle and that the specific heat of water, coffee and milk is about

    asked by Anonymous
  40. English

    Posted by rfvv on Monday, June 6, 2016 at 7:05pm. 1. I try not to stress when things go wrong. 2. I try not to stress out when things go wrong. 3. I try not to stressed when things go wrong. 4. I try not to stressed out when things go wrong.

    asked by rfvv
  41. math

    amy has60 wooden beads she has 4 times as manyas glass beads how many glass beads does amy have?

    asked by Nuriffah farhana
  42. Math

    A pharmaceutical salesperson receives a monthly salary of $2500 plus a commission of 7 percent of sales. Write a linear equation for the salesperson monthly wage in terms of monthly sales.

    asked by Dave
  43. maths

    the longest and shortest distance from sun to earths surface are r1 and r2. what is the distance from the sun when it is perpendicular to it

    asked by lekshmysuresh
  44. Math (Circle Equations)

    Write an equation with a radius of 2 inches and center point (-5,2) Would it be: (x+5)^2+(y-2)^2=2^2 ?

    asked by Giovanni
  45. Science

    What is the equation of the street line that passes through the points 1 and -4 and 3 and 2

    asked by Anonymous
  46. Chemistry

    Which of the following statements is not consistent with the results obtained in Rutherford’s gold foil experiment? A. The nucleus of an atom is positively charged. B. The nucleus of an atom contains almost all the mass of the atom. C. Atoms are composed

    asked by quick help needed
  47. math

    Find the foci of the ellipse whose major axis has endpoints $(0,0)$ and $(13,0)$ and whose minor axis has length 12.

    asked by rui rui
  48. Chemistry

    Which symbol correctly represents an element (D) whose atoms contain 15 protons and 20 neutrons? A. 20/15 D B. 15/20 D C. 35/15 D D. 15/35 D C?

    asked by quick help needed
  49. History

    How are living conditions in the twenty-first century different than conditions in the nineteenth and early twentieth centuries? (You may compare any of the following areas: the role of women, leisure and entertainment, social classes, education, family,

    asked by Nikki
  50. math


    asked by pradeep
  51. algebra

    If someone weighs 120lbs how many mg of Lysine would they take For adults, the RDA of the amino acid lysine is 12 mg per kg of body weight. Please e-mail me the answer

    asked by Munroe
  52. chemistry

    a) Define the following terms: • Electronegativity • Bond polarity • Ionization energy b) What is the difference between ionic bonds, covalent bonds and polar covalent bonds? Give two examples of each c) Draw Lewis structures for each of the

    asked by chansa
  53. chemistry

    Acids and bases • What is an acid? • A 500cm3 solution containing 1.9g of a weak acid HA has a pH of 3.50. Calculate the molar mass of the acid, given that it has a Ka of 2.0 × 10-6moldm-3 • Calculate the pH of the following: • 0.002moldm-3 NaOH

    asked by chansa
  54. chemistry

    Consider the information given below ΔH⁰/ kJmol-1 Enthalpy of lattice formation for CaF2 -2611 Enthalpy of hydration for Ca2+ ions -1650 Enthalpy of hydration for F- ions -506 Using the information given above, calculate the enthalpy of solution for

    asked by chansa
  55. Physics I (Classical)

    A kayaker needs to paddle north across a 85-m-wide harbor. The tide is going out, creating a tidal current that flows to the east at 2.0 m/s. The kayaker can paddle with a speed of 3.0 m/s. Find the angle West of North he needs to travel and the time it

    asked by Victoria
  56. math

    Lolita saved $ 5000 in a saving account which pays 12% interest compounded monthly. Eight months later she saved another $ 5000. Find the amount in the account two years after her first saving.

    asked by omar
  57. Pre-Calculus

    Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. x + y + z = -5 x - y + 3z = -1 4x + y + z = -2 I really need help.. 1 1 1 -5 1 -1 3 -1 4 1 1 1 -2 I've done so many different methods to solve this and I get

    asked by Alexa
  58. Math

    35 1/2% to the nearest thousandth

    asked by Nana
  59. Precalc

    Let x and y be real numbers such that x^2 + y^2 = 1. Find the max value of 2x - 5y. A hint was given to use Cauchy-Schwarz but I'm not sure how to apply it to vectors?

    asked by Katie
  60. Math(DifferentQuestion,SameDescription)

    Orienteering is a sport that involves navigating your way to a series of checkpoints with the aid of a map and compass. The goal is to find each point on the map as quickly as possible. A typical compass used for orienteering is divided into 360 degree

    asked by Cameron
  61. Science

    Which of the following statements is not consistent with the results obtained in Rutherford’s gold foil experiment? A. The nucleus of an atom is positively charged. B. The nucleus of an atom contains almost all the mass of the atom. C. Atoms are composed

    asked by Ms. Sue Please help me
  62. math

    A park is in the form of a rectangle 100 m×80 mat. At the centre of the park there is a circular lawn. The area of the park excluding the lawn is 4150 m^2 find the radius of the circular lawn

    asked by Neha
  63. Trigonometry

    24. Let cscθ = 5 with θ ∈QII and find the following. *use double identity a) cosθ b) cotθ

    asked by Mark
  64. Trigonometry

    26. Solve for 0≤ x

    asked by Mark
  65. Trigonometry

    27. Solve for all radian solutions. sinx = −2cos x

    asked by Mark
  66. Trigonometry

    28. Find all solutions if 0° ≤θ

    asked by Mark
  67. Science

    what is the concentration of sulfuric acid if 0.25l of it is neutralized by 0.56l of 0.030m koh?

    asked by Mika
  68. Science

    A student wants to neutralize 1000 ml of .25m lioh with 0.75m hbr. How much hbr are they expected to use? Sho your work.

    asked by Mika
  69. Business Mathematics

    Taxi fare from an airport to a nearby town is $0.80 per mile driven, plus $2 for tolls. Let y represent the lare and r the miles driven on one trip. write the equation for y in terms of r. Find the fare when the distance driven is 17 miles.

    asked by Bithy
  70. technology

    If there are 12 inches per foot and I travel 5 feet , how many inches have I traveled

    asked by Angela
  71. Pre Calc

    Airplane going N 60 degrees W at a speed of 400 mph. What wind direction, at a speed of 75 mph will produce a resultant direction of N 50 degrees W

    asked by Beth
  72. Math

    What is the value of "x" if 25^2=x? 1.)125 2.)0 3.)625 4.)5

    asked by :)
  73. English

    1. He tells me that she is happy. => He told me that she was happy. 2. He has told me that she was happy. => He told me that she had been happy. 3. He will tell me that she will be happy. => He told me that she would be happy.

    asked by rfvv
  74. English

    1. It is getting hotter. 2. He grew taller. 3. The leaves turned brown. 4. He fell asleep. 5. The bird came alive. 6. The man has gone blind. 7. You should stay healthy. 8. She remained unmarried all her life. 9. He became rich. 10. She appeared rich. 11.

    asked by rfvv
  75. Pre Calc

    visually show on compass/vector graph n 60 degrees w at 400 mph, n 40 e at 75 mph

    asked by Beth
  76. Algebra

    f(2.4) = 4(2.4) - 2.4^2 = 3.84 If I were to continue this iteration what would be the next equation? I am just confused how to continue with a problem I'm doing.

    asked by Harold
  77. Math

    Prove that the following Trigonometric Identity is valid: 1/(sin⁡(y)-1)-1/(sin⁡(y)+1)=-2sec^2 (y) Please any help or clues on how to do this is needed. I have a sheet that tells me valid identities but nowhere on it has info on -2sec^2 (y) I am sooo

    asked by kat
  78. Physics

    A constant unbalanced force is applied to an object for a period of time. What would the graph look like as acceleration as a function of elapsed time?

    asked by Zoë
  79. Math (Polar to Cartesian Equation)

    Convert the given polar equation to a Cartesian equation. r^2=4sec(theta)csc(theta)

    asked by Ray
  80. Child Care

    1. You're attempting to teach Brian, a preschooler, how to arrange a group of five blocks from largest to smallest. First, you explain what you want him to do; then you do it yourself so he can see what he's supposed to do. As Brian attempts to arrange the

    asked by Queen B
  81. Physics

    I'm sorry this is kind of a long question. I've been staring at it for about an hour now and I have no clue where to even start. Thank you so much!!!! A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale

    asked by Maya
  82. Physics

    Hi!! For this question, I feel like the answer is C but I'm not sure. If the answer is C, could you explain to me why/ if it isn't then why not? A book leans against a crate on a table. Neither is moving. Which of the following statements concerning this

    asked by Kaylen
  83. pre-calculus

    A plane flies at a speed of 150mph at an angle of 10 degrees, after 6 seconds, the plane keeps the same speed but changes to an angle 18 degrees. How long in minutes would it take the plane to travel to a cruising altitude of 30,000 feet?

    asked by Marc
  84. math

    Constructing a parallelogram which size is 6cm and 9cm the angle between size being 60 degree menion the diagonal

    asked by adrian jackson
  85. Math (Trig)

    Suppose the point A is on a circle of radius 6 with an angle of 240 degrees. Find the value of the coordinates of this point. Round your results to 3 decimal places. So in this case, x=rcos(theta) y=rsin(theta) x=6cos(240) y=6sin(240) Rounding to 3 decimal

    asked by Giovanni
  86. math143

    2x3-4x2+23=y,-167) a solution? Show/explain,51) a point on the graph c.give the y-intercept

    asked by John
  87. math143

    Find the way intercepts for 4y-5x=18

    asked by John
  88. Science

    In order to analyze the wastewater containing cu2+ from a manufacturing process, 1.0L of water was evaporated to 10.0mL, then placed in a spectrophotometer tube. The absorbance was found to be 0.30. Using your calibration curve, calculate the number of

    asked by Tyler
  89. Meaning?

    What does it mean to take responsibility for taking care of someone? What does it mean to take responsibility for someone?

    asked by Victoria
  90. maths

    Cos3Q=√3/2,find tan6Q?

    asked by Ritu