Questions Asked on
April 28, 2012

  1. chemistry

    How many grams of hydrogen are collected in a reaction where 1.80L of hydrogen gas is collected over water at a temperature of 40degrees C and a total pressure of 738torr?

    asked by Jessica
  2. physics

    If a projectile is launched vertically from the Earth with a speed equal to the escape speed, how far from the Earth's center is it when its speed is 1/9 of the escape speed?

    asked by Turk
  3. Physics

    A projectile is launched vertically from the surface of the Moon with an initial speed of 1500. At what altitude is the projectile's speed one-half its initial value?

    asked by Turk
  4. chemistry

    A scuba diver takes a 2.3L balloon from the surface, where the pressure is 1.0atm and the temperature is 37degrees C, to a depth of 35m, where the pressure is 4.5atm and the temperature is 18degrees C.what is the final volume at this depth?

    asked by Jessica
  5. Math---helpppp

    1)Expand and simplify. Express each equation in standard form. a) f(x) = -2(x-1)(x+4)(x+1)(x-3) b) f(x) = (x+2)(x+1)(x+4) c) f(x) = x(x-6) 2) For each function in question 1. state the degree of the polynomial and identify the type of function

    asked by sandra
  6. Geometry

    1. What is the base and the height of the rectangle if the area is 216 and the perimeter is 66? 2.The perimeter of an isosceles trapezoid is 40 ft. Thr bases of the trapezoid are 11ft and 19 ft. Find the area of the trapezoid.

    asked by Anonymous
  7. chemistry

    A gas sample with a volume of 5.3L has a pressure of 745mmHg at 33degrees C.What is the pressure of the sample if the volume remains at 5.3L but the temperature rises to 79degres C?

    asked by houston
  8. chemistry

    A cylinder contains 12.0L of air at a total pressure of 44.0psi and a temperature of 35degrees C.How many moles of gas does the cylinder contain?

    asked by houston
  9. chemistry

    How many moles of gas must be forced into a 3.1L ball to give it a gauge pressure of 9.8psi at 22degrees C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.5psi so that the total pressure in the ball is

    asked by Jess
  10. chemistry

    An experiment shows that a 111ml gas sample has a mass of 0.161g at a pressure of 725mmHG and a temperature of 36degrees C.What is the molar mass of the gas?

    asked by Jess
  11. Trig. application

    Dave is going for a ride on his unicycle. The radius of the wheel is 25.5cm. When he gets on, the valve of the wheel is at its maximum height. He pedals along a path at a speed of 30km/h. At what height will the valve be located after he has cycled for 4

    asked by Anonymous
  12. Chemistry

    When the equation for the following reaction in basic solution is balance, what is the sum of the coefficients? MnO2 + HO2^1-.....>MnO4^1- A=11 B=31 C=14 D=9

    asked by Wube
  13. chemistry

    A sample of gas has a mass of 0.555g . Its volume is 114L at a temperature of 80degrees C and a pressure of 744mmHg .Find the molar mass of the gas

    asked by Jess
  14. chemistry

    An air sample contains 0.032%CO2 .If the total pressure is 756mmHg , what is the partial pressure ofCO2 ?

    asked by Jess
  15. calc

    1)Convert 1/20 of a circle to both degrees and radians. All I have is 9/180 is what I come up with. 2) what fraction of a circle does 3pi/4 represent? Is 1/4 correct? 3) a ferries wheel has cars which move at 1.5mph. If the diameter of the wheel is 600 ft,

    asked by ALISON
  16. calc

    The wheels are connected BT a belt. One wheel has a radius of 10inches and is rotating 40rpm. If the other wheel has a radius of 6inches, what is its angular velocity? Is 200rev/3min correct?

    asked by ALISON
  17. physics

    The densities of two substances are in the ratio 5:6 and the specific heats are in the ratio 3:5 respectively. The ratio of their thermal capacities per unit volume is

    asked by kala
  18. physics

    The thermal capacity of 10g of a substance is 8 calories. the specific heat is in J/kg-K options : 1.3360 2.3630

    asked by kala
  19. physics

    A piece of metal of mass 112g is heated 100 degree C.,and dropped into a copper calorimeter of mass 40g containing 200g of water at 16 derreC. Neglecting the heat loss, the specific het of the meatal is nearly,if the equilibrium temperature reached is

    asked by kala
  20. physics

    A particle has a kinetic energy equal to its rest energy. (a) What is the speed of this particle? (b) If the kinetic energy of this particle is doubled, does its speed increase by more than, less than, or exactly a factor of 2? (c) Explain (d) Calculate

    asked by martini
  21. Physics

    A hydrogen atom is in its third excited state (n=4). Using Bohr theory of the atom calculate (a) the radius of the orbit, (b) the linear momentum of the electron, (c) the angular momentum of the electron (d) the kinetic energy (e) the potential energy, and

    asked by Chi
  22. Physics

    Radio waves (419m) from a station travel along two paths from the transmitter to a house. The first path is direct, 27km, and the second path is by reflection from a mountain directly behind the house. No phase change occurs upon reflection from the

    asked by Nu
  23. Physics

    Calculate the de Broglie wavelength of a proton moving at 5.50x10^5 m/s.

    asked by mono
  24. Physics

    Electrons are accelerated though a potential of 60V and then from a beam that hits two slits separated by 2.5x10^-8m. (a) What is the wavelength of these electrons (hint: first find the momentum)? (b) How far is the second order bright spot from the center

    asked by genius
  25. math grade 11

    in a reflection the image of the line y-2x=3 is the line 2y-x=9.find the axis of reflection.

    asked by amir
  26. psychology (Ms.Sue)

    Thank you Ms.Sue for answering my last question. I have one another question that I has hard time understanding.... "the circumstances that may contributto the development of this condition." I have no idea what she is asking. This is the question,

    asked by Delhi
  27. physics

    A 1.4-m-long massless rod is pivoted at one end and swings around in a circle on a frictionless table. A block with a hole through the center can slide in and out along the rod. Initially, a small piece of wax holds the block 20 from the pivot. The block

    asked by Anonymous
  28. math - trig

    1.Which angle measure is consistent with all of the following criteria? (i) The reference angle is 40°. (ii) The angle is more than one revolution. (iii) The angle's terminal side is in Quadrant II. (iv) The angle isn't positive. A. –580° B. –500°

    asked by Anonymous
  29. Microeconomics

    3. An industry currently has 100 firms, all of which have fixed costs of $16 and average variable cost as follows: Quantity Average Variable Cost 1 $1 2 2 3 3 4 4 5 5 6 6 1) The price is currently $10. What is the total quantity supplied in this market? 10

    asked by andy
  30. L.O

    identify ane describe one environmental problem that causes ill health,crises,accedents,and desasters within communities of south africa or globally

    asked by Previlege
  31. Science

    How can the parent rock or bedrock effect the environment?

    asked by jeremy
  32. Differential Calculus

    y = 1 + (x-1)^(1/2) Considering the interval (2,4), calculate delta(y) and dy. would delta(y) be: delta(y) = f(4) - f(2) = (1 + squr(3) ) - 2 = squr(3) - 1 and dy is 1/(2 squr(x-1)) dx Thank you

    asked by Jer
  33. Maths

    A perfectly cylindrical container standing upright with a top and bottom(an oil drum or coke can for example) of area A has an empty mass of M and a height of H. It is filled with a liquid of uniform density(p)up to the height of h. When the container is

    asked by Stephen
  34. social studies

    most likely satisfy a person who strongly values

    asked by Anonymous
  35. life orientation

    name two institutions/community organizations that are involved in supporting or giving redress to these disasters.explain how organizations are involved in providing a safe and healthy environment.

    asked by mpho
  36. Geometry

    If the length of the sides of two similar triangles are in the ratio 3:4, what is the ratio of the lengths of a pair of corresponding altitudes? What is the ratio of their perimeter?

    asked by CJ
  37. math

    find the length of a side of a square whose diagonal is 16 in.

    asked by lisa
  38. Intermediate Algebra

    y varies directly as the cube of x and inversely as the square of z. If y is 30 when x is 2 and z is 4: b) Find the equation that models this data. c) Find the value of y when x is 3 and z is 2.

    asked by Angie
  39. Agriculture

    What are the different soil formation in nigeria?

    asked by Hayatuddeen Adamu sani
  40. Life orientation

    Identify and describe one environmental problem that causes ill health

    asked by Lucia
  41. algebra

    -a^3+10a^2-31a+30=0

    asked by loca
  42. Life orientation

    Identify one environmental or human factor that causes ill health,accidents,crises,and disasters within your community or any other community within South Africa.

    asked by Dikeledi
  43. spanish/check please

    Completa la oracion usando las palabras este,ese,aquella oaquellos.) (Hint:Complete the sentence using este, ese,aquella,o aquellos) 1. Mira el caballo que esta delante de mi.Mira( ....) caballo. answer:( ese) 2 ¿Ves la llama que está lejos de nosotros?

    asked by JOSEPH
  44. Pre-Calculus

    Express the repeating decimal as a ratio of two integers. 2.6231313131....

    asked by Sangita
  45. History

    When did the Pilgrims arrive at Plymouth Rock?

    asked by Rezu
  46. History

    What was the name of the original colony established in Virginia in 1607? Colony of Virginia?

    asked by Rezu
  47. math

    find the length of a side of a square whose diagonal is 36 in.

    asked by lisa
  48. Algebra 1

    4^2+6^2=c^2

    asked by Taylor Bishop
  49. math

    one side of an equilateral triangle is 42cm.find the length of an altitude of the triangle.

    asked by lisa
  50. Chemistry

    assume equal masses of the following substances, all of them at 20.0 degrees C and exposed to the same source of heat simultaneously. Which substance will reach a temp of 35.0 degress faster? aluminium sp 0.900 lead sp 0.128 titanium sp 0.523 tin sp 0.222

    asked by RoseBud
  51. Polynomials and quadratic application

    I want to make a rectangular garden by fencing in a area on the back of my house. Three sides of the rectangle will be fencing; the fourth side will be the side of the house. I have 60 feet of fence. What dimensions should I make the rectangle so that I

    asked by Kendra
  52. Chemistry

    what mass of sodium chloride will be required to completely react with 4.00 x 10(24) units of AgNO3 and form AgCl and sodium nitrate?

    asked by RoseBud
  53. Chemistry

    a gas misture containing N2 and O2 was kept inside a 2.00 L container at a temp of 23.0 degrees C and a total pressure of 1.00atm. The partial pressure of O2 was 0.722atm. How many grams of Nitrogen were present in the mixture?

    asked by RoseBud
  54. chemistry

    How many moles of gas must be forced into a 3.7L ball to give it a gauge pressure of 8.4psi at 23degrees C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.6psi so that the total pressure in the ball is

    asked by Jessica12
  55. math

    sinA + cosA > 1 where A is 0< A < 90 in ABC triangle

    asked by erka
  56. geometry

    Point A is 5 feet from the center of the circle and 12 feet from point B. is tangent to circle O at A. Find OB to the nearest tenth. Answer Choices: 13 ft 14.3 ft 26 ft 5 ft

    asked by DA
  57. math

    the perimeter of a square is 64 ft. find the length of a diagonal.

    asked by lisa
  58. math

    The perimeter of a square is 64 ft. Find the length of a diagonal. Please show me all the steps.

    asked by lisa
  59. math

    find the length of a side of a square whose diagonal is 36 inch show all work

    asked by lisa
  60. math

    An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two

    asked by john
  61. geometry

    Point A is 5 feet from the center of the circle and 12 feet from point B. is tangent to circle O at A. Find OB to the nearest tenth.

    asked by DA
  62. physics

    two ropes are tied to a large boulder. one rope is pulled with a force of 400N due east. The other rope is pulled with a force of 300N due south. draw a vector diagram showing the forces

    asked by Melissa
  63. math

    hi ms.sue could you please check my answer in problem The perimeter of a square is 64ft. Find the length of a diagonal. c=22.62

    asked by lisa
  64. chemistry 2

    How many amperes would be needed to produce 60 g of magnesium during the electrolysis of molten MgCl2 in 2 hours?

    asked by Anonymous
  65. Physics

    How fast must the ball rolled along the surface of a 70cm high table so that when it roll off the edge it will strike the floor at the same distance (70cm) from the point directly below the edge of the table.

    asked by Abbey
  66. Physics

    A plumb bob (a mass m hanging on a string) is deflected from the vertical by an angle θ due to a massive mountain. A) Make an estimate of the mass of Mt. Everest, assuming it has the shape of a cone 3910 m high and base of diameter 3910 m. Assume its mass

    asked by Brett
  67. Anthropology

    Before colonialism, most colonized people lived in: (Points : 1) general peace and tranquility static and unchanging cultures a state of balance with nature constant warfare and violence

    asked by Orlando
  68. Polynomials and quadratic application

    Suppose I want a garden with 400 square feet. Write an equation that can be used to find the values for x that will result in that area.

    asked by Kendra
  69. Anthropology

    Dowry is most likely to be found in societies: (Points : 1) 1)where women contribute more to subsistence than do men. 2)that are complex, but not industrial. 3)with polygyny. 4)where couple’s live with the groom’s family.

    asked by Orlando
  70. Trig. application

    Hello.. In your previous solution to the question: "Dave is going for a ride on his unicycle. The radius of the wheel is 25.5cm. When he gets on, the valve of the wheel is at its maximum height. He pedals along a path at a speed of 30km/h. At what height

    asked by Anonymous
  71. Vertices - Reflections&Tranlations?

    Thanks for reading this! A triangular prism has vertices at A(2,-1,-1) B(2,1,4) C(2,2,-1) D(-1,-1,-1) E(-1,1,4), and F(-1,2,-1)? This question has two parts: 1 - Which image point has the coordinates (-3,2,1) after a translation using the vector I'm

    asked by Tabby
  72. Life orintation

    How does lack of infrastucture causes ill health,accidents,crisesand disaster within your community or any other community within South Africa?

    asked by Sbongakonke
  73. trig problem

    Hi, A fountain in a shopping centre has a single jet of water. The height of the jet of water varies according to a sinusoidal function. A student notes that, in exactly one minute, the jet goes from a minimum height of 2m to a maximum height of 6m and

    asked by Anonymous
  74. u n i

    The trial balance of Bair Company includes the following balance sheet accounts. Identify the accounts that require adjustment. For each account that requires adjustment, indicate (a) the type of adjusting entry (prepaid expenses, unearned revenues,

    asked by stt
  75. History

    Would the printing press be under Economic category or Political, Social, Intellectual?

    asked by Amy
  76. english

    What effect do drugs, bullying and dangerous weapons have on schooling and education?

    asked by Lihle
  77. math-TRIG

    1. Which angle measure is consistent with all of the following criteria? (i) The reference angle is 40°. (ii) The angle is more than one revolution. (iii) The angle's terminal side is in Quadrant II. (iv) The angle isn't positive. A. –580° B. –500°

    asked by LOVE
  78. finance

    You have an investment opportunity which yields 9% per year. About how many years will it take your initial investment of $10,000 to grow to a total of of $40,000? Please give your answer as a whole number

    asked by Qoo
  79. Chemistry

    If 0.150 moles of salicylic acid and execs acetic anhydride are used during a synthesis of aspirin, how many grams of aspirin will be obtained if the reaction gives a 38% yield?

    asked by Tiffany
  80. Chemistry

    A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH, what is the molar mass of the acid?

    asked by Tiffany
  81. chemistry

    consider the reaction between copper metal and chlorine gas producing solid copper(1) chloride. when 16.2g of copper is reacted in an excess of chlorine, how many grams of copper(1) chloride will be produced

    asked by janice
  82. Chemistry

    I can't seem to get this problem, i really don't understand it Chemical reactions can also be coupled. The decreasing free energy of a spontaneous change can be stored in substance whose formation would not ordinarily be spontaneous. Living organisms have

    asked by bobby
  83. math

    i am trying to write a script for an animation so that it follows a specific path. the animation begins at the origin, goes upwards to the point (61,61) then falls to (122,0) in a parabola. i am trying to figure out the equation for this line.

    asked by Cody
  84. English

    As teens, we feel obligated by our peers in order to make ourselves look more powerful and more respected. I, as a teen, do admit that I have been bullied because of my culture, my religion, and my thoughts. The emotional war that I fought within myself

    asked by Rica1717
  85. trig question

    On a unit circle, sin x = square root 3 over 2, with center O. Vertical line from top to center of circle is PO. Horizontal line from middle to right of circle is OE. Another vertical line of AB is parallel to PO. And radius of circle (line from O to A) is

    asked by Anonymous
  86. trig question

    NEW DIAGRAM: On a unit circle, sin x = square root 3 over 2, with center O. Vertical line from top to center of circle is PO. Horizontal line from middle to right of circle is OE. Another vertical line of AB is parallel to PO. And radius of circle (line

    asked by Anonymous
  87. Abortion

    explain the ethical and social responsibility toward the community on abortion

    asked by Archie
  88. Algebra

    Determine the nature of the solutions to the equation. y^2=3/2y+5/3 Thank you.

    asked by Erica36
  89. Algebra

    The length of a triangle is twice the width. The area is 2yd^2. Please, find length and width and simplify. :-)

    asked by ShelbyA
  90. Algebra

    Y^2 - 20y + 100 = 64 Looking for exact solutions. I know they are integers, but...is there a decimal solution? Thanks

    asked by ShelbyA
  91. Algebra

    M^2 - 25/2m=5/2 The solutions are? Using radicals if need be?

    asked by Hopeless in N.Y.
  92. Chemistry

    1. A good indicator will have a(n)____ close to this volume and pH. I think it's endpoint but it's wrong. 2. (part a) What is the pH of the solution created by combining 1.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the

    asked by Jody
  93. Physics

    Several volcanoes have been observed erupting on the surface of one of Jupiter's closest moons. Suppose that material ejected from one of these volcanoes reaches a height of 4.96 km after being projected straight upward with an initial speed of 132 m/s.

    asked by Jane
  94. chemistry

    For the following fusion reaction, Calculate change in energy per mole.( Answer in J/mole) 2H1 + 2H1 ---> 3H1 + 1H1 (the mass number is in front of the atom and the atomic number is behind the atom) Given info:Atoms with their masses(amu) H-1 1.00782 H-2

    asked by Mima
  95. Marketing

    Managerial accounting is

    asked by BOB
  96. Marketing

    What is the preparation of reports for each level of responsibility in the company’s organization chart called?

    asked by BOB
  97. basic science

    if a force of 140 neaten is applied by a car over a distance of 10 metre within 10 second, calculate. (i) work done by the car. (ii) power of the car.

    asked by victor
  98. trig-math

    4. A carpenter wants to be sure that the corner of a building is square and measures 6.0 ft and 8.0 ft along the sides. How long should the diagonal be? A. 12 ft B. 10 ft C. 11 ft D. 14 ft 5. A wheel 5.00 ft in diameter rolls up a 15.0° incline. How far

    asked by LOVE
  99. Chemistry(Please help)

    delta Go = -431.16kJ/mol - (298k X 0.12529 kJ/K*mol) I am having trouble converting the units for delta H and delta s to match. I multiplied delta H by 1000 to get kJ but this didn't give me the correct answer. Chemistry(Please help) - Dev, Wednesday,

    asked by Hannah
  100. FACS Project - POSTERS - Food Safety & Kitchen Saf

    I have a project for my Family and Consumer Science class. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~` Directions - Create two (2) posters, one for Food Safety and one for Kitchen Safety. Write a slogan that will express a Food Safety practice

    asked by Laruen
  101. physics

    A body of mass 300g movers in a circle of 4m at a uniform speed of 12m/s. Calculate the angular velocity and the tripetal force

    asked by Baridoo
  102. child development

    A child who hasn't learned the prequisite fundamentals needed for a combition of motor paterns is suffering from A. anxiety B. poor muscle control C. proficiency barrier D.nonacquisition barrier

    asked by jane
  103. Life orientation

    Community organisations that are involved in supporting or giving redress to teenage pregnancy

    asked by Tshepho
  104. child developement

    A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x

    asked by jane
  105. algebra

    write the slope intercept equation for the line containing the given pair of points (6,8) and (3,5) please help I have been working on this for three day's

    asked by carol
  106. Chemistry(Please help)

    What is the molar solubility of barium phosphate in a 0.282M barium acetate solution? If I set up and ice table I would have 0.282M - X = ? Would I use the molar mass of barium acetate to complete the equation to find X? Ba3(PO4)2 ==> 3Ba^2+ + 2PO4^3-

    asked by Hannah
  107. History

    What is the difference between Gone With the Wind and reality?

    asked by Chyenne
  108. Health, Safety, and Nutrition

    A child who hasn't learned prerequisite fundamentals needed for a combination of motor patterns is suffering from A anxiety B poor mscle control C proficiency barrier D nonacquisition barrier

    asked by jane
  109. Math

    solve (–3)(–6)(–5) = 22. What three numbers comes next in this number pattern? 98, 91, 84, 77, __, __, __, …

    asked by iodskl
  110. Math--help help help

    1)when a certain polynomial is divided by x - 3, the quotient is x^2+2x-5 and the remainder is -3. what is the polynomial 2) Find each quotient and remainder. Assume the divisor is not equal to zero. a)(2x^2+29x-x^3-40)/(-3+x) b)(6+7x-11x^2-2x^3)/(x+9)

    asked by sarah
  111. financial management

    I need some help I have the numbers I need but do not understand how to do break even points. The formula is PX = A + BX where P = Unit cost or price of the service X = Amount of service to be provided (an unknown) A = Fixed costs B = Variable costs The

    asked by Taffany
  112. Life orientation

    5 ways in which the human or environmental problem impacts on the community.e.g..porverty in the community/in schools or Hiv/aids

    asked by Foster mathebula
  113. Life orientation

    5 ways in which the environmental or human factor that causes ill health,accidents,crises,and disasters within the communities in south africa.

    asked by Foster mathebula
  114. Health, Safety ,and Nutrition

    children should not be served drinks in containers made of A. styrofoam B. uninsulated paper C. treated ceramic D. stainless steal

    asked by jane
  115. Chemistry

    How do I do this problem, I am very confused on how to even begin: An aqueous solution contains 0.167 M ascorbic acid (H2C6H6O6) and 0.194 M hydroiodic acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. [C6H6O62-] =? mol/L.

    asked by Dan
  116. Chemistry

    I am very confused about how to start this problem: A 29.8 mL sample of 0.354 M methylamine, CH3NH2, is titrated with 0.231 M hydrochloric acid. The pH before the addition of any hydrochloric acid is ?. The Kb of methylamine is 4.2x10^-4

    asked by Dan
  117. math

    If √8-a + √5+a = 5, then √(8-a)(5+a) = ... Please help me solve this.

    asked by Evelina
  118. trig question

    Hi, my question is attached to the web below (picture), because I can't draw the diagram on here. Sorry for any inconvenience. Please help and thanks. imageshack . us/photo/my-images / 845 / img0043gx . jpg/

    asked by Anonymous
  119. math

    How many solutions equation x^4 + 2x^2 - 15 = 0 has?

    asked by Evelina
  120. Physics

    A 1-lb stone is heaved vertically upward with a speed of 40 ft/s from the top of a 100-ft cliff, and it hits the water below 100-ft below (narrowly missing the thrower on the way down). WATCH YOUR UNITS!! Find the stone's a) Total energy at time zero (set

    asked by Addie
  121. Physics

    If a projectile is launched from Earth with a speed equal to the escape speed, how high above the Earth's surface is it when its speed is three-fifths the escape speed? I keep getting the answer 2.56x10^6 m after solving it a few different ways. Help would

    asked by Kristin
  122. algebra

    5x^(2)u^(6) & 20xu^(3)y^(7)

    asked by Anonymous
  123. Saftey, and Nutrition

    A child who struggles to climb into a chair is confronting what kind of hazzard? B physcal or D enviromental

    asked by jane
  124. book report

    can someone show me how a third grade bokreport layout is done

    asked by emily
  125. math

    21. What three numbers comes next in this number pattern? 1, 4, 9, 16, __, __, __, …

    asked by ui
  126. Calculus: Area

    Can someone look at my work and see what i did wrong. I did this 100 times but i keep getting it wrong Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=3x^(1/2) , y=4

    asked by jasmineT
  127. Chemistry

    Consider the following reaction: H2(g) + I2(s) ---> 2HI(g) TriangleH = 51.9 kj (enthalpy) Calculate the standard enthalpies of reaction for the following reaction: 6HI(g) ---> 3H2(g) + 3I2(s) Thanks!

    asked by Sandy
  128. Accounting

    T/F Questions The main reason that the bank statement cash balance and the company's cash balance do not initially balance is due to timing differences. Sales Discounts is a revenue account with a credit balance. Multiple Choice: Assuming a 360-day year,

    asked by Natalie
  129. Health, Safety ,and Nutrition

    Which is a suitable toy for a toddler ? A a riding toy or B a walker I think it is A.

    asked by jane
  130. Health, Safety ,and Nutrition

    A childs ability to jumpfor distance is an example of Agility or Flexability

    asked by jane
  131. Desktop publishing- Illistrations

    1. Since they’re partners in communication, an illustration should A. appear in a darker shade or color than text. B. appear in a lighter shade or color than text. C. be near its related text. D. feature a thin, dark border. 2. Graphic Designer A says

    asked by Caralynn93
  132. Organic Chemistry

    1. Benzene is often produced as a side product during Grignard reactions where phenylmagnesium bromide is used as the Grignard reagent. How can its formation be explained? Please include a balanced chemical equation that describes its formation. 2. Why,

    asked by genius
  133. law of torts

    Responsibilities of an insured include: Conducting a thorough investigation. Hiring outside counsel. Notifying the insurance company of a claim. Analyzing the factual allegations. None of the above. c? or d not 1005 sure

    asked by michelle
  134. algebra

    9n^2-1=0

    asked by Anonymous
  135. law of torts

    Causation in toxic tort cases is discussed in terms of: a) General and specific causation. b) Sharing expenses and risk. c) Strict liability and breach of warranty. d) a and c. e) None of the above. a? im torn between two answers

    asked by michelle
  136. algebra2/trig

    Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is n 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank you

    asked by JOSEPH
  137. calculus

    I have a question about the root test. If we have 5x^5 + 2 in the denominator, then does the root(1/x) apply to the whole denominator as one, for example (5x^5 + 2)^1/x or would it be applied separately. Thanks

    asked by zuhra
  138. Engineering Calculus

    f(x)=((6x-3)/(x+6)) how do you find the intervals of decreasing and increasing...I found that there were no critical points yet I was also correct that the function increased (-I,-6) and (-6,I). I was wrong that there were no decreasing intervals though.

    asked by Cheallaigh
  139. ALGEBRA

    Y=3X^2+9X-1

    asked by Anonymous
  140. algebra

    How would I show my work for: 3-2(3)+2(4)+1

    asked by Brittany
  141. Pre-Calculus

    Express the repeating decimal as a ratio of two integers. 1.23535353535...

    asked by Sangita
  142. MATH

    A carpenter wants to be sure that the corner of a building is square and measures 6.0 ft and 8.0 ft along the sides. How long should the diagonal be? A. 12 ft B. 10 ft C. 11 ft D. 14 ft

    asked by RICE
  143. Pre-Calculus

    How many terms of the series 12+4+4/3+4/9+..., are needed to yield a sum of 1459/81?

    asked by Sangita
  144. TRIG

    5. A wheel 5.00 ft in diameter rolls up a 15.0° incline. How far above the base of the incline is the top of the wheel after the wheel has completed one revolution? A. 4.07 ft B. 13.1 ft C. 8.13 ft D. 9.07 ft

    asked by PAM
  145. chemistry

    Zinc metal reacts with HCL similarly to magnesium: Zn(s) + 2HCL(aq) = ZnCl2(aq) + H2(g). the H2 gas produced was collected over water at 25 degrees Celsius and had a volume of 7.80L at 0.980 atm. How many grams of Zn were consumed in the reaction? (Vapor

    asked by preshi
  146. chemistry/help

    65.933grams of barium fluoride are placed into a volumetric flask,and enough water is added to make 1.500 liters of solution. calculate the molarity.

    asked by JOSEPH
  147. KESHA

    A surveyor must divert her path from point C by proceeding due south for 300 ft to point A. The surveyor determines that point B, which is due east of point C, is N49°E from point A. What is the distance from point C to point B? A. 350 ft B. 375 ft C. 360

    asked by PAM
  148. algebra 2/trig

    Write the next term of sequence,and then write the rule for the nth term. 1)1,8,27,64,....125 the nth is 2) 3,8,15, 24,.....35 the nth is Can you help me and correct ? thank

    asked by JOSEPH
  149. pre-cal

    6. ) let f(x)=x^2,evalute f(h-2)-f(-2)/h H->0 7.) evalute lim-2x^2+x/x x->0

    asked by mecie
  150. Math-helpppppp

    1)when a certain polynomial is divided by x - 3, the quotient is x^2+2x-5 and the remainder is -3. what is the polynomial 2) Find each quotient and remainder. Assume the divisor is not equal to zero. a)(2x^2+29x-x^3-40)/(-3+x) b)(6+7x-11x^2-2x^3)/(x+9)

    asked by sarah
  151. Math

    You bought the bond for $1,040, after 6 months you received a coupon of $35 and after another 6 months you received another $35 coupon and you sold the bond for $1,070. What would be your total dollar return in that case? What would be your total

    asked by Sarah
  152. physical

    How much more work is done to push a box 2.5 m with a force of 30 N than to push a box 2.0 m with a force of 26 N?

    asked by Anonymous
  153. physics

    The equation of motion of a particle in vertical SHM is given by y = (10 cm) sin 0.80t. (a) What is the particle's displacement at t = 1.1 s? (b) What is the particle's velocity at t = 1.1 s? (c) What is the particle's acceleration at t = 1.1 s?

    asked by Darla
  154. physics

    how much torque do you exert if you push perpendicularly on a door with a force of 30 N at a distance of 0.85 m from its hinges

    asked by Anonymous
  155. Chemistry

    Complete each ionic equation Cu+2 + SO4-2 + 4H2O ----> Ca+2 +2NO3-1 + 4H2O ----> 3K+1 +PO4-3 + 6H2O ----> Na+1 + Br-1 + 2H2O ----> 2Na+1 + S-2 + 2H2O -----> 2NH4+1 + CO3-3 + H2O ----> 2Na+1 + Cr-2 + 2H2O -----> Mg+2 + 2Br-1 + 4H2O -----> Na+1 + Cl-1 + 2H2O

    asked by Tiffany
  156. physics

    The finding that light in free space has one speed, and one speed only, is consistent with ____________________. A) the conservation of energy as shown by Maxwell.B) general relativity.C) Newton's laws of motion.D) electromagnetic induction. My book tells

    asked by Kristie
  157. statistics

    A professor informs her class that a test is very difficult, but the grades will be curved. Scores for the test are normally distributed with a mean of 25 and a standards deviation of 5. If she curves the grades by adding 50 to each grade, What is the new

    asked by Sabrina
  158. physics

    A mass of 710 kg is located at the origin. A second mass, 44.0 kg, is located at the point (0.216,0.702) m. Find the magnitude of the gravitational force on the 44.0 kg mass due to the 710 kg mass at the origin. I got: 3.86×10-6 N Enter the x and y

    asked by Marc
  159. marketing

    Identify public relations opportunities for a new product.

    asked by Patiance
  160. Calculus

    find the absolute extrema of f(x)=sin pi x on [-1,2] Not sure how to do this problem....

    asked by Tyler
  161. algebra

    Write the slope-intercept equation for the line that passes through (-2, 3) and is perpendicular to 2x – 9y = -12

    asked by carol
  162. algebra

    When you spend $1 at the grocery store, the store doesn’t keep all of your money as profit. Some of it is reinvested in the economy when the grocery store buys more merchandise from suppliers. In turn, the suppliers don’t keep all of that money as

    asked by david
  163. physics

    Your teacher used to think he could move an entire space station floating weightless in space with a mere push of his pinkie finger. Was he correct?

    asked by Anonymous
  164. ap calculus

    let y=f(x) be the particular solution for the differential equation with the initial condition y(-1_=3/2

    asked by linda
  165. ap calculus

    write an equation for the line tangent to the graph of f at (-1,3/2) and use it to approximate f(-1,1)

    asked by blake
  166. ap calculus

    find the particular solution y=f(x) to the differential equation with the initial condition y(-1)=3/2

    asked by blake
  167. math

    expand as a binomial series (r-p)^9

    asked by John
  168. math

    A sequence has t(sub1) = 5 and t(sub2) = 15 a. if the sequence is geometric, what is the common ratio? What do t(sub3) and t(sub4) equal? b. if the sequence is arithmetic, what is the common ratio? What do t(sub3) and t(sub4) equal?

    asked by Mark
  169. calculus

    why does sin(1/x) diverge, while sin(1/x^2) converge?

    asked by inu
  170. math-geometry!

    what is the total number of points that graphs x^2+y^2= 16 and y=x have in common

    asked by Mirielle
  171. math-geometry!

    what is the total number of points that graphs x^2+y^2= 16 and y=x have in common

    asked by Mirielle
  172. Physics

    Two baseballs, each with a mass of 0.157 kg, are separated by a distance of 379 m in outer space, far from any other objects. If the balls are released from rest, what speed do they have when their separation has decreased to 173 m? Ignore the

    asked by Stella
  173. physics

    At a fabrication plant, a hot metal forging has a mass of 66.8 kg and a specific heat capacity of 437 J/(kg C°). To harden it, the forging is quenched by immersion in 785 kg of oil that has a temperature of 25.0 °C and a specific heat capacity of 2770

    asked by RC
  174. Chem

    Chalcocite is an ore from which copper can be extracted for commercial use. The formula for this important ore is Cu2S. In the laboratory it is formed by the following reaction: 2Cu + S → Cu2S The reaction takes place in laboratory conditions that allow

    asked by BreAnne
  175. Algebra 2

    If an object is thrown vertically upward with an initial velocity of v, from an original position of s, the height h at any time t is given by: h=-16t^2+vt+s(where h and s are in ft, t is in seconds and v is in ft/sec) a ball is thrown upward with initial

    asked by Billy
  176. Math

    Find the volume of the solid obtained by rotating the region bounded by the given curves about the x-axis? y=x^2 x=y^2 about the axis x=–2 here's what i did and it was incorrect V = 2pi [x+2][x^1/2 - x^2]dx from 0 to 1 V = 2 pi [2x^5/3 / 5 + 4x^3/2 / 3 -

    asked by Katherine
  177. Finance

    A stock has an expected return of 10 percent, the risk-free rate is 6 percent, and the market risk premium is 5 percent. The beta of this stock must be . Note that the market risk premium is given.

    asked by angiza
  178. Finance

    A stock has an expected return of 10 percent, the risk-free rate is 6 percent, and the market risk premium is 5 percent. The beta of this stock must be . Note that the market risk premium is given.

    asked by angiza