Questions Asked on
January 8, 2012

  1. math

    Pizzaz pg.103 Did you hear about...

    asked by John
  2. Geometry PARALLELOGRAM question?

    If ON=8x-8, LM=7x+4, NM=x-5, and OL=3y-6, find the values of x and y for which LMNO must be a parallelogram. {O is on the left, N is on top right, L is on bottom left and M is on bottom right} Thank You :)

    asked by Alexandria
  3. Geom

    If m

    asked by Lexi
  4. Physics

    a 2.0 x 10^3 -kilogram car collides with a tree and is brought to rest in 0.50 seconds by an average force of 6.0 x 10^4 newtons. What is the magnitude on the impulse of the car durning this 0.50 -second interval?

    asked by Taylor Faith
  5. AP Chem

    At a particular temperature, Kp = 0.25 for the following reaction. N2O4(g) 2 NO2(g) (a) A flask containing only N2O4 at an initial pressure of 5.3 atm is allowed to reach equilibrium. Calculate the equilibrium partial pressures of the gases. (b) A flask

    asked by Bill
  6. AP Chem

    At a particular temperature, K = 1.00 102 for the following reaction. H2(g) + I2(g) 2 HI(g) In an experiment, 1.23 mol H2, 1.23 mol I2, and 1.23 mol HI are introduced into a 1.00 L container. Calculate the concentrations of all species when equilibrium is

    asked by Bill
  7. ukm

    The equilibrium constant (Kc) for the gas phase reaction 2 NH3 --> N2 + 3 H2 is 3 x 10-3 at some temperature. The reaction is started by placing a sample of ammonia in an empty one liter flask. When equilibrium is established there is 0.010 mole of N2

    asked by Anonymous
  8. GEOMETRY PARALLELOGRAM QUESTION PLEASE HELP!

    If ON=8x-8, LM=7x+4, NM=x-5, and OL=3y-6, find the values of x and y for which LMNO must be a parallelogram. {O is on the left, N is on top right, L is on bottom left and M is on bottom right} Thank You :)

    asked by Alexandria
  9. Parallelogram Question Writing a Proof

    given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right]

    asked by aLEXANDRIA
  10. AP Chem

    At a certain temperature, 4.0 mol NH3 is introduced into a 2.0 L container, and the NH3 partially dissociates by the reaction. 2 NH3(g) N2(g) + 3 H2(g) At equilibrium, 2.0 mol NH3 remains. What is the value of K for this reaction?

    asked by Bill
  11. geometry

    Two sides of a triangle have lengths 8 and 17. Which inequalities represent the possible lengths for the third side, x? a) 9 < x < 25 b) 9 < x < 17 c) 9 < x < 8 d) 8 < x < 17

    asked by Lexi
  12. pre-calc

    Two nonvertical lines have slopes m1 and m2, respectively. The lines are parallel if ___ and the ___ are unequal; the lines are perpendicular if ___.

    asked by nelly
  13. Calc

    Consider the cubic polynomial y=Ax^3 +6x^2 -Bx, where A and B are unknown constants. If possible determine the values of A and B so that the graph of y has a maximum value at x=-1 and an inflection point at 1.

    asked by Anonymous
  14. trigonometry

    A river is 2000 ft wide and flowing at 6 mph from north to south. A woman in a canoe starts on the eastern shore and heads west at her normal paddling speed of 2 mph. In what direction (measured clockwise from north) must she aim her canoe? How long will

    asked by brittney
  15. math-calculus

    a plane flew from red deer to winnipeg, flying distance of 1260 km. on the return journey, due to a strong head wind, the plane travelled 1200 km in the same time it took to complete the outward journey. on the outward journey, the plane be able to

    asked by Shreya
  16. History

    What was the basis for Joseph McCarthy’s accusations and investigations?

    asked by lalilian
  17. AP Chem

    The following reaction has Kp = 109 at 25°C. 2 NO(g) + Br2(g) 2 NOBr(g) If the equilibrium partial pressure of Br2 is 0.0159 atm and the equilibrium partial pressure of NOBr is 0.0768 atm, calculate the partial pressure of NO at equilibrium.

    asked by Bill
  18. math-calculus

    two numbers differ by three and their quotient is 3/4. the larger number is? i not get how to do this.

    asked by Shreya
  19. physics

    1.4 mol of gas at a temperature of -170 degreed celcius fills a 2.9 L container. what is the gas pressure?

    asked by please help
  20. math

    Bob sets two alarm clocks (battery-powered) to be sure he arises for his Monday 8:00 A.M. accounting exam. There is a 75 percent chance that either clock will wake Bob. (a) What is the probability that Bob will oversleep? (b) If Bob had three clocks, would

    asked by James
  21. Physics

    Two point charges Q1 and Q2 are 4C. They are 10cm apart. At what distance betwen the charges the net electric field will be zero?

    asked by Nuwaya
  22. Trigonometry

    Steve and Peggy want to rent a 40 ft x 20 ft tent for their backyard to host a barbecue. The base of the tent is supported 7 ft above the ground by poles and the roped stakes are used for support. The ropes make a 60 degree angle with the ground. What are

    asked by Liz
  23. trig

    how do you work find sin (a-B)beta sign. sin a = 12/13,a lies in quadrant II,and cos B = 15/17, B lies in quadrant I.

    asked by Kenneth
  24. Physics

    A 70.50 kg man rides a Ferris wheel with a radius of 10.3 m at a velocity of 5.00 m/s. What is the centripetal force that she experiences expressed with the correct number of significant figures?

    asked by Pat
  25. PARALLELOGRAM WRITING A PROOF

    given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right]

    asked by aLEXANDRIA
  26. Chemistry

    The following reaction has Kp = 109 at 25°C. 2 NO(g) + Br2(g) 2 NOBr(g) If the equilibrium partial pressure of Br2 is 0.0159 atm and the equilibrium partial pressure of NOBr is 0.0768 atm, calculate the partial pressure of NO at equilibrium.

    asked by Ferdinand
  27. chemistry

    At a certain temperature, 4.0 mol NH3 is introduced into a 2.0 L container, and the NH3 partially dissociates by the reaction. 2 NH3(g) N2(g) + 3 H2(g) At equilibrium, 2.0 mol NH3 remains. What is the value of K for this reaction?

    asked by Franz
  28. auditing

    Catherine goes to her local movie theater only to see romantic comedies. Since Catherine did not go to the movies yesterday, there is not a romantic comedy playing at her local theater. The reasoning above is flawed because the evidence (Points : 1)

    asked by Sandy
  29. chemistry

    What is the difference in mass between a nickel that weighs 4.8 and a nickel that weighs 4.868 ?

    asked by Liz
  30. math

    Today only a table is sold at a 28% discount. the sale price is now 666. what was the price yesterday?

    asked by bill
  31. physics

    a hydraulic lift is designed for a gain of 100, so that a 10 N force applied at theinput piston will produce a force of 1,000 N at the output piston. If the radius of the input piston is 2 cm, the radius of the output is a) 200 cm, b) .02 cm c) 400 d) 20

    asked by anna
  32. chemistry

    Calculate the enthalpy of change, Delta H of rxn, for each of the reactions. record the values in the data table part 2 I calculated the heat of rxn of the HCl +NaOH------NaCl + H2O. How do i go from here to enthalpy of change

    asked by AP Chemistry Question
  33. math

    classify the triangle with angles measuring 37 degrees, fifty three degrees and 90 degrees

    asked by Ronnie Rodriguez
  34. math

    In division, what does it mean to decide to drop, include or use the remainder? Ex: You decide to hang shelves. Each shelf needs 4 brackets. You have 23 brackets. How many shelves can you hang/ What do you do with the remainder, drop, include or use and

    asked by Cole
  35. apply skills and rules improving your writing

    Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial

    asked by Sis
  36. Algebra 2

    For 1985 through 1996, the number, C (in thousands), of videos rented each year in Moose Jaw can be modeled by C= 0.069(t^3+4t^2+37t+600) where t=0 represents 1990. During which year are 60.4 thousand movies projected to be rented? Could someone please

    asked by Alice
  37. Chemistry

    For the reaction below, an analysis of an equilibrium mixture is performed at a certain temperature. N2(g) + 3 Cl2(g) 2 NCl3(g) It is found that [NCl3(g)] = 1.9 10-1 M, [N2(g)] = 1.4 10-3 M, and [Cl2(g)] = 4.3 10-4 M. Calculate K for the reaction at this

    asked by Larry
  38. statistics

    A random sample of 12 joggers was asked to keep track and report the number of miles they ran last week. The responses are: 5.5 7.2 1.6 22.0 8.7 2.8 5.3 3.4 12.5 18.6 8.3 6.6 Compute the three statistics that measure central location

    asked by Anonymous
  39. Chemistry

    The LD (subscript 50) for a drug dose that would be fatal for 50% of the population. The LD (subscript 50)for aspirin in rats is 1.75 grams/kilogram of body weight. Calculate how many aspirin tablets a human weighing 155 pounds would have to take to reach

    asked by Sharon
  40. physics

    A typical photovoltaic cell delivers 3.8×10−3 {\rm W} of electric energy when illuminated with 0.14 {\rm W} of light energy. what is the energy efficiency of the cell?

    asked by please help
  41. case management

    what are some similarities and differnces of case management in the community setting and in the managed care environment. As i see it, Case management has become a critical element in a community focused mental health system. Case management in the

    asked by liz
  42. math

    can u please help me with this math problem. i don't get how to do this question. Mrs. Mabie has a rectangle swimming pool that measures 25 feet by 14 feet. She wants to have a cement walkway installed around the perimeter of the pool. The combined area of

    asked by Jaz
  43. Precalc

    1) expand (1+3x)^4 using the Binomial Theorem. 2) Use Pascal's Triangle to expand(x+2)^5 3)What is the third term of (a+b)^11?

    asked by 95
  44. math gre question

    in an infinite series of circles the radius of the second circle is one half the radius of the first circle and the radius of the third circle is one half the radius of the second circle. if the first circle has a radius of one inch which of the following

    asked by luckybee
  45. chemisstry

    1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

    asked by lisa
  46. MATH

    natasha is painting her bedroom, which measures 15 feet by 12 feet and has an 8-foot ceiling. not accounting fo windows and doors, how many square feet will she be painting?

    asked by DEON
  47. Maths

    The radii of three concentric circles are 2cm, 3cm and 4cm Find the ratio of the shaded areas A (the second circle from the inside) and B(the outer circle) (Hint: don't substitute for pi)

    asked by Math's Noob
  48. pre-calc

    True or false: Perpendicular lines have slopes that are reciprocals of one another.

    asked by nelly
  49. Statistics

    Daily output of Marathon’s Garyville, Lousiana, refinery is normally distributed with a mean of 232,000 barrels of crude oil per day with a standard deviation of 7,000 barrels. (a) What is the probability of producing at least 232,000 barrels? (b)

    asked by Mary Ann
  50. chemistry

    1. Show the e- dot structure for CuCl2, I2 and H2O. State the bond type and name. Show charges where necessary.

    asked by lisa
  51. Geometry

    A streetlight is mounted on top of a 15 ft. pole. A 6-ft tal man walks away from the pole along straight path. How long is his shadow when he is 40 ft from the pole?

    asked by M.C.
  52. algebra 101

    If The sum of the measures of two complementary angles is 90° and If one angle measures 15° more than twice the measure of its complement, find the measure of each angle. What is The measure of one angle is 1 times the measure of the other. Find the

    asked by misty
  53. physics

    The image behind a convex mirror (radius of curvature = 71 cm) is located 24 cm from the mirror. (a) Where is the object located?

    asked by Anonymous
  54. English

    • Facts and figures that define the problem (the cause)? • Facts and figures that define the problem (the cause)? Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director,

    asked by Sis
  55. calculus ab

    The velocity of a particle tralling along the x-axis is given by v(t)=(e^-t)(sin(t)). Find the following a. Compute the net change in distance from time t=1 to time t=3 (this is equivalent to s(3)-s(1) b. compute the total distance traveeled from time t=0

    asked by Jake
  56. Trig

    The question is: Set up a 2 column proof to show that each of the equations is an identity. Transform the left side to become the right side. a. (tan + cot)^2 = sec^2 + csc^2 I'm having trouble with this. b. (cos + sin)/cos + (cos - sin)/sin = csc sec I'm

    asked by Don
  57. algebra

    does any body hav the fith grade math note book if so can u give me a web site at the backof the book to go to if i need to go online and getthe pge and print it of something

    asked by zyla
  58. physics

    a cube of side L is made of a substance that is 1/4 as dense as water. WHen placed in a calm water bath the cube will a) float with 1/2 L abovethe surface b)sink to the bottom, c) float with 1/4 L above the surface d) float with 1/4 L below the surface e)

    asked by anna
  59. Cubic Equations

    I have three that I need help with if possible. 1. Solve 2x^3 - 3x^2 = 6x - 9 2. Find all real and imaginary roots of the polynomial equation 3x^4 - x^3 + 4x^2 - 2x - 4=0 3. Find a cubic equation with integral coefficients and roots 3i and -5.

    asked by Belinda
  60. algebra

    suppose a market research company finds that a price of p=$22, they would sell x=42 tiles each month. If they lower the price to p=$12, then they would purchase the tile and they can expect to sell x=52 tiles in a month. Find the equation of the line for

    asked by debby
  61. Algebra

    I am preparing for a quiz and received a small guide (mini guide) over the weekend. So I have all the answers to the questions but I want to learn how to solve this specific problem: 2^(5/2)- 2^(3/2) and the answer is 2^(3/2). To clarify the numbers in the

    asked by Paul
  62. history

    a.Dollar Diplomacy b.Moral Diplomacy c.Big Stick Diplomacy 1. This policy protected U.S. business interests in the Carribean and Central America by deploying military force to keep order and defend markets. 2. This policy encouraged U.S. businesses to

    asked by anonymous
  63. 4th grade Math Help

    hello, can someone please help with the below math question Mr. brooks brought a box of 66 acorns to class. Can he give 3 acorns to each of the 23 students in his class? Why or Why not? Thanks!

    asked by Ryan
  64. CHEM

    At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?

    asked by Anderson
  65. CHEM

    At 1100 K, Kp = 0.25 for the following reaction. 2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?

    asked by Anderson
  66. math-calculus

    the formula 1/R = 1/R1 + 1/R2, concerning resistance in an electrical circuit is used in physics. if R = 3 ohms and R1 is 8 ohms more than R2, the value of R1 be? this also not make any sense to me

    asked by Shreya
  67. English

    Thank you very much for your corrections. Here are some more sentences I'd like you to check. 1) An example of a desolate place is Frankenstein’s laboratory, where the scientist is confined in order to create the monster. 2) Frankenstein is not set in a

    asked by Henry2
  68. Calculus

    Integrate tan^6(x)

    asked by Shayna
  69. History

    Describe and evaluate President Eisenhower’s policy regarding Joseph McCarthy.

    asked by jin
  70. math

    Paula has been told that the product of the length and width of her house is 900 square feet. Her house is in the shape of a rectangle. Name three possible dimensions of her house.

    asked by A
  71. math

    2. the volume of a rectangular solid is 5376 cubic meters, and the base is 24 meters by 16 meters. find the height of the solid.

    asked by Randy
  72. math gre ques

    A sudent is analyzing data from an experiment using a linear model. when the student entered the data into his calculator and ran a least squares linear regression the calculator gave a correlation coefficient of 0.01. what can the student infer from this

    asked by luckybee
  73. Math

    Given P(A) = .70, P(B) = .30, and P(A ∩ B) = .00, find (a) P(A ∪ B) and (b) P(A | B). (c) Sketch a Venn diagram and describe it in words

    asked by James
  74. trig

    solve for x in the following equations: 1) sin(arcsin x) = 1 2) 2arcsin x = 1 3) cos(arccos x) = 1/3

    asked by Abbey
  75. writing sentences and paragraphs

    Revised Paragraph 2 Let me know if this is better: Anna, I am so happy you’ve moved back to Burlington from Bay view, Ohio! Especially since there are many more job oppurtunities here for you to discover. In fact just yesterday I was talking with my boss

    asked by Shawna
  76. Chemistry

    PLEASE HELP! What is the mass of 1.50x10^-2 mol of (NHv4)v2SOv4? v=subscript

    asked by Diana
  77. math-calculus

    x^2+9xy+20y^2/x^2+5xy (x+4y)(x+5y)/(x))x+5y) i cancel off x+5y's (x+4y)/(x) that be the anser?

    asked by Shreya
  78. Algebra

    Solve for x and y y=1/3x - 1 x-y=-1

    asked by Please help
  79. physics

    the force acts on a 50g ball varies with time.if the initial velocity of the particles is 20m/s.what is the average acceleration of ball during this time?

    asked by jumana
  80. Math

    Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast

    asked by Kim
  81. Math

    Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast

    asked by Kim
  82. AP Chem

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.580 M, calculate the equilibrium concentrations of the gases.

    asked by Bill
  83. writing

    whats a memoir

    asked by zavier
  84. math

    Incidence rate: Women 125 per 100,000 Men 1.2 per 100,000 This statistic says that for every 100,000 women in the U.S., 125 developed breast cancer. For every 100,000 men, fewer than two developed breast cancer. From these numbers, we can see that breast

    asked by Kim
  85. science

    WHEN A PERSON TRAVELLING ON MOON HIS/HER WEIGHT IS 30KG SO HOW WILL HE OR SHE WILL FEEL ND WHY?

    asked by JOSHIKA
  86. Trig

    Proving Identities: 2 columns (tan + cot)^2 = sec^2 + csc^2 I'm having trouble breaking down the left side to = the right side.. Any help please

    asked by Don
  87. math gre study ques

    a student starts with a positive number, x^6, and take the square root three times and the cube root once. this is equivalent to which of the following? a. x^1/4 b. x^4/3 c. x^3/4 d. x^4

    asked by luckybee
  88. Trig

    (sin/cos)/ ( 1/cos - 1) = I'm stumped

    asked by Don
  89. Trig

    the horizontal speed of an airplane is 183mph. the magnitude of the plane's velocity is 200mph. write an expression describing the angle the angle the plane is climbing my solution: cos-1 183/200 is this right

    asked by luckybee
  90. geometry

    In the figure below, the length of CB is 64 units and the length of BG is 137 units. What is the length of EA?

    asked by Lizzie
  91. tommy

    At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.870 M, calculate the equilibrium concentrations of the gases.

    asked by CHEMISTRY
  92. Writing Sentences and Paragraphs

    Here is my Paragraph 1 , It is my good copy just wanna a final check before I submit it. PARAGRAPH 1 According to the job listing in The Daily News, I understand you are seeking a Medical Administrative Assistant to work in Fletcher Allen Hospital in

    asked by Shawna
  93. Algebra

    If Rick’s Automotive charges $50 plus $15 for each (15-min) unit of time when making a road call. Twin City Repair charges $70 plus $10 for each unit of time. Under what circumstances would it be more economical for a motorist to call Rick’s? show all

    asked by misty
  94. math

    there are about 20 potatoes ina 5 pound bag a restaurant uses about 2 potatoes per order of french fries they charg 95 cents for an order of fries how much money does the restaurant take in on a day that thay use 400 poundes of potatoes

    asked by shammy
  95. math-calculus

    15+2y-y^2/3y^2-16y+5 (5-y)(3+y)/(3y-1)(y-5) i factor out a negative one from (5-y) to make it same like (y-5) (-1)(-5+y)(3+y)/(3y-1)(y-5) i cancel off y-5's. and i get (-1)(3+y)/(3y-1) but the real answer have to be 3+y/1-3y what i doing wrong?

    asked by Shreya
  96. math-calculus

    x^2+9xy+20y^2 i never deal with something like this before i come up with (x+4)(x+5) but that wrong because y have to be there how i do this?

    asked by Shreya
  97. English

    I forgot to include the following sentences. Could you please check them, too? 1) It wasn’t frightened of humans. Stay home/at home. (both possible?) I didn’t dare speak/to speak (I think both are possible) 2) He offered to come with me the next day.

    asked by Henry2
  98. history

    what is the most deadly phase of a volcanic eruption like the one at vesuvius (show link to this)

    asked by paul
  99. world history

    Political instability between competing states during the period from 1000 to 500 B.C.E. led to A. advances in technology. B. a decrease in trade. C. a decline in new religious practices. D. fewer opportunities for new ideas about society.

    asked by Amanda
  100. calc

    What are the first and second derivatives of y= x^(2/3) * (2.5 - x)

    asked by Anonymous
  101. history

    In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

    asked by Jo
  102. Physics

    What magnitude of force, acting for 0.025 s, will change the velocity of a 100 g ball from 30 m/s eastward to 40 m/s westward?

    asked by Anon
  103. income tax

    How much approximately would I pay in income tax in canada on $500,000.00 on stock profit in one year. I will have no other expenses to declare

    asked by al
  104. Algebra

    Solve for x and y y=1/3x - 1 x-y=-1

    asked by Please help
  105. US Gov.

    I am stuck on two questions that I can't find in the textbook or online and I don't have any idea how to get the answer since the class doesn't start until Thursday and the quiz is also on that day, please help. 1. It is proposed to split the state of

    asked by Harley
  106. Physics

    If a projectial is fired at such an angle that the vertical componet of its velocity is 49m/s. The horizonal componet of its velocity is 61m/s, then how long will the projectia stay in the air? What distance will it travel? And what is the inital speed?

    asked by Rick
  107. physics

    a 20 kg crate is initially moving down a wall at a speed of 2.0 m/s. Determine the magnitude of the average force exerted by the person in order to stop the crate's downward motion in a distance of .50 m. The person pushes in a direction 53 degrees above

    asked by brit
  108. English

    I left out the following sentences.Thank you very much! 1) The description of the monster reinforces the doctor's disgust and repulsion against (??) him (I think "for"?), who is he result of a crime against nature and life and is represented as a demoniac

    asked by Henry2
  109. physic

    an ideal fluid flows through a pipe hat runs up an incline and gradually rises to a height H. The cross sectional area of the pipe is uniform. compared with the flow at the bottom of the incline, the flow at the top is a) moving slower at lower pressure b)

    asked by john
  110. math

    What is the diameter of an 18 foot circle?

    asked by ted
  111. Calc

    What are the first and second derivatives of y= x-3x^(1/3)

    asked by Anonymous
  112. Calc

    what are the first and second derivatives of y= sinx - 3^1/2 cos x for x in [0,2pi]

    asked by Anonymous
  113. calculus AB

    given ç 1to-1 f(x)dx=0 and ç 1to0 f(x)dx=5, compute the following a.ç 0to-1 f(x)dx b.ç 0to1 3f(x)dx=0 c.ç 1to-1 (f(x)+7)dx=0

    asked by Jake
  114. math

    4. the area of a rectangle is 450 m^2. both the length and width of the rectangle are increased by 10%. what is the area of the new rectangle?

    asked by Randy
  115. Math

    Jerome knows that the total distance around his house is 120 feet. His house is in the shape of a regular quadrilateral. What are the dimensions of his house?

    asked by A
  116. Physics

    On a sunny day, a 1.20 m long vertical stick in air casts a shadow 1.20 m long. If the same stick is held vertically and touching the flat bottom of a pool of salt water (n=1.71) half the height of the stick, how long is the shadow on the floor of the

    asked by SPENCER
  117. Fianancial Accounting

    I am trying to prepare an unadjusted trial balance for Aqua Elite, Inc. I have done it twice and it doesnt balance. I am not sure I am doing the right calculations. The information is as follows: Because Aqua Elite, Inc. is a new startup business, the

    asked by Diane
  118. English

    Could you please check these few sentences, please? Thank you very much! 1) Can't you say "cheat in the maths test"or is only on possible? She invites me for a walk (is it a mistake? She invited me to go for a walk) 2) She makes a living by teaching. She

    asked by Henry2
  119. Human and Social Biology

    A calorimeter was used to oxidise completely 2g of a food sample,causing a temperature rise of 5degrees C in 100cm3 of water(this figure includes the water equivalent of the apparatus). How much energy was present in the food sample(in joule per g)?

    asked by Nikita
  120. Hindi

    Characteristics,how he proved useful for nation? (in hindi)

    asked by Characterdheela
  121. math

    bernie began building a model airlane on day 7 of his summer vacation and finished building it on day 65. he worked on the plane each day. how many days did it take?

    asked by taylor
  122. BUSINESS MATHS

    Find the cost of credit in the following loan. Amount of loan: RM 4,450 Number of payments: 24 Monthly payment: 221.

    asked by ummu
  123. Physics waves

    in which sprind do transverse waves travel faster, small diameter spring or slinky? i think this be the transverse waves but i not know how to explain why. in which spring do longitudinal waves travel faster? i think that be the small spring because it

    asked by Shreya
  124. Chemistry

    Using redox methods, write the balanced equations for each of the reactions in the appropriate medium. A) Ca(s) + Cr2O7(Charge 2-) (aq) --> Ca2+ (aq) + 2Cr3+ in acid medium B) Fe(CN)6(charge 4-) (aq) + Ce(charge 4+) --> Ce(OH)3(s) + Fe(OH)3(s) + CO3(charge

    asked by Gabby
  125. physics

    If a container holds 0.865 L of ethyl alcohol at 12.0 degree{C}}, what is the volume of the alcohol when its temperature is raised to 35.0 degrees celcius? i was thinking it was VT=VT and sub in but keep coming out with wrong answer

    asked by please help
  126. History

    what were at least 2 problem of drawbacks associated with the way the romans had their office of consul arranged (show me link to this)

    asked by paul
  127. Statistics

    The fracture strength of a certain type of manufactured glass is normally distributed with a mean of 579 MPa with a standard deviation of 14 MPa. (a) What is the probability that a randomly chosen sample of glass will break at less than 579 MPa? (b) More

    asked by Mary Ann
  128. Math

    Solve for x and y X=1/6y Y=x-5

    asked by Elena
  129. physics

    A corner reflector made from a triangular prism with index of refraction n = 1.65 is shown in the diagram. What is the maximum angle of incidence, θ, such that total reflection occurs?

    asked by morgan l
  130. history

    what event set precedence that alleviated the the problem of having on law of succession in the empire please help

    asked by paul
  131. physics

    On a sunny day, a 1.20 m long vertical stick in air casts a shadow 1.20 m long. If the same stick is held vertically and touching the flat bottom of a pool of salt water (n=1.71) half the height of the stick, how long is the shadow on the floor of the

    asked by alex giroux
  132. history

    why did the romans reuild carthage after they destroyed it in the punic war(show the link )I have a test please help me

    asked by paul
  133. history

    what is the most deadly phase of a volcanic eruption like the one at vesuvius (I do not have a book show me the link )

    asked by paul
  134. calc

    what are the first and second derivatives for y= x* (4-x^2)^1/2

    asked by Anonymous
  135. Science

    You notice green scum floating on the surface of a pond. How can you tell whether these organsims are plants?

    asked by Lexi
  136. history

    what enent set precedence that alleviated the problem of having no law of succession in the empire

    asked by Barbara
  137. physics

    the force acts on a 50g ball varies with time.if the initial velocity of the particles is 20m/s.what is the average acceleration of ball during this time?

    asked by jumana
  138. physics

    the force acts on a 50g ball varies with time.if the initial velocity of the particles is 20m/s.what is the average acceleration of ball during this time?

    asked by jumana
  139. percentage problem

    Over the course of ten years the price of an item increased 300%. The new price is what percent of the old price?

    asked by Kathy
  140. algebra

    a+8-2(a-12)> 0

    asked by destiny
  141. ap calculus ab

    for f(x)=lnx we know that f(e)=1. Use the tangent line at(e,1) to compute the tangent line approximation of f(3). what does the difference between the actual value and the tangent line approximation have to do with the concavity (2nd derivative) of the

    asked by Jake
  142. adv. math

    How do you show work for this problem, in a percent equation form?~ $3680 at 6.75% for 2 1/4 years

    asked by jordan
  143. Physics

    If a projectial is fired at such an angle that the vertical componet of its velocity is 49m/s. The horizonal componet of its velocity is 61m/s, then how long will the projectia stay in the air?

    asked by Rick
  144. math

    i have 5 hundreds and 3 ones i am more than 590 what number iam

    asked by nana
  145. Physics

    bobpursley can you show the equasions you are using

    asked by Rick
  146. social studies

    i am doing a poster project and i am putting the virgina act for establishing religious freedom and i need help finding out what to put for it's caption

    asked by jordyn
  147. social studies

    i am doing a poster project and i am putting the declaration of independence and i need help finding out what to put for it's caption

    asked by jordyn
  148. Algebra I

    Exponential Function. Please show me how to solve: g(t) = -0.5 x 4w (that is 4 to the power of w) w=18

    asked by Jane
  149. Calc

    What are the first and second derivatives of y= x^(2/3) * (2.5 - x)

    asked by Anonymous
  150. Calc

    what are the first and second derivatives for y= x* (4-x^2)^1/2

    asked by Anonymous
  151. math

    if the ratio of p to q is 2 to 3, what is is the ratio of 2p to 2q

    asked by Tempie
  152. chem

    Enzymes are proteins that act as catalysts in biological systems. They act most efficiently at temperatures between 36 degrees celsius and 40 degrees celsius. Why is this so?

    asked by sailor
  153. math

    the inner circumference of a ring is 1.2pi cm. the outer circumference of the ring is 2pi cm. find the area of the region bounded by the outer and inner circumference.

    asked by Randy
  154. Physics

    A car travels 10.0 m/s. What is its velocity in km/h?

    asked by Pat
  155. math

    1. find the lateral area of a right prism whose altitude measures 20 cm and whose base is a square with a width 7 cm long.

    asked by Randy
  156. math

    a rectangle has a perimeter of 22cm and an area of 30 cubic meter. what are its dimensions?

    asked by Randy
  157. alg application

    two cars leave the station at 9:00 am. the first car head due south at an avg speed of 54mph. the second car heads due west at an avg speed of 72mph. how far apart will the cars be at 1:00pm? my solution: 360mi is this correct

    asked by luckybee
  158. math

    at the inauguration, the President was honored with a 21-gun salute. the report form each gunshot lasted 1 s. four seconds elasped between shots. how long did the salute last?

    asked by taylor
  159. stat counting principles

    telephone numbers for a certain city have exchanges of 584, 545, or 586. each of these exchanges is followed by four digits. how many different telephone numbers are possible for this city? a. 3 * 4 b. 3 * 4 * 10 c. 3 * 10^4 d. 3 * 4^10

    asked by luckybee
  160. algebra

    how to solve this two step equation s/12-7=8

    asked by raju 123456
  161. English

    Could you please check these sentences, too? Thank you very much. 1)The project was about searching a breeding site for the cheetahs. They followed and pounce (on) their prey without being heard (or seen) in semi-arid grasslands (or grassland?) 2)They live

    asked by Henry2
  162. biology

    what is the correct pathway required for oxygen

    asked by colette
  163. social studies

    Who was Michigan's firstgovernor?

    asked by Arielle
  164. Chemistry

    If you place a white tablet in 10 ml of water that is 21 degrees celsius, the tablet bubbles. When it is done the water is now 20 degrees celsius. What reaction occured?

    asked by Rick
  165. history

    name 2 of the previous names of the modern day city of istanbul (show me link to help me)

    asked by paul
  166. chemistry

    I need to convert a word problem that I was given into a balanced chemical equation and cannot figure out how i was type it. The problem is: Nitrogen and hydrogen gases react at extreme temperatures and pressures. Any help?

    asked by Zoe
  167. Pre-Cal

    Find the distance d(P1,P2) between the points P1 and P2. P1= (-2,1); P2= (0,0) P1= (-1,1); P2= (2,2) P1= (-1,0); P2= (2,4) P1= (2,-3); P2= (4,2)

    asked by nelly
  168. human services

    In the movie Lakota Woman- Siege at Wounded Knee; I need to understand what the alienation isues that Mary Crow Dog regarding her family. Do you have any ideas on where I can find this informaton?

    asked by Jo
  169. history

    who was the roman who made advancenements in medicine by dissecting animals

    asked by paul
  170. English

    I left out two sentences I really find it difficult to rephrase. 1) Frankenstein uses a thin ray of light of the lantern in order to enlighten the plae blue eye of the old man. 2) The last gothic characteristic is the fear caused by the action of the

    asked by Henry2
  171. history

    what event set precedence that alleviated the problem of having no law of succession in the empire I have no book Please help

    asked by paul