Questions Asked on
January 26, 2012

  1. Math

    Calculate the size of angle marked in each diagram below

    asked by Omolade
  2. calculus

    Find Mx, My, and (x, y) for the laminas of uniform density ρ bounded by the graphs of the equations. (Use rho for ρ as necessary.) x = −y x = 5y − y2

    asked by sammyg
  3. aliense egypt

    each stone in the pyramids weighed several?

    asked by lana
  4. harris middle school

    a bag contains 5 red marbles,4 white marbles, and 9 blue marbles. you pick a marble without looking. find the probability of drawing a white marble.

    asked by mary
  5. Dynamics of Business

    11. Often, the _______ the risk, the _______ the rewards. A. higher; higher C. higher; lower B. lower; higher D. faster; quicker 12. When the government of Indonesia imposes a tax on imported electronics products to help its young electronics industry

    asked by Heather
  6. calculus

    An object moves along the x-axis, according to x= (pi/2)t + sin(pi t). a) What is the largest velocity such an object attains? b) Identify one interval on which the object is accelerating in a positive direction. Explain your reasoning. c) Name one part of

    asked by pleh
  7. trig

    If sin(θ) = 8/17 and θ terminates in QI, find cos(θ)

    asked by josh
  8. trig

    Give the reciprocal of the following. 7/15

    asked by josh
  9. trig

    Find the remaining trigonometric ratios of θ if sin(θ) = -1/6 and θ is not in QIII cos tan cot csc sec

    asked by josh
  10. trig

    Use a ratio identity to find tan(θ) if given the following. sin=6/sq rt 37 and cos 1/sq rt 37

    asked by josh
  11. Spanish

    what does it mean when someone says "no me calles"

    asked by Jared
  12. Geometry

    what are the coordinates of the centroid of each triangle given the three vertices of D(0,3),C(-1,0),B(4,0)?

    asked by Dece
  13. Math

    Mary was making sandwiches for the class picnic. 13 of the sandwiches had a slice of cheese. 14 had a slice of salami. 13 had a slice of tomato. 8 had a slice of cheese & a slice of tomato. Only 3 had a just a slice of salami. 5 had a slice of tomato, a

    asked by Heather P.
  14. conversion

    how do you convert g/mm^3 to kg/m^3

    asked by jim
  15. math

    mae has a oval racetrack. 2 curves, each is 1/2 of the circle and each on a radius of 21". 2 straight-aways connect the circle and are 46" long. what is the total distance around the circle?

    asked by maddie
  16. math

    mae has a oval racetrack. 2 curves, each is 1/2 of the circle and each on a radius of 21". 2 straight-aways connect the circle and are 46" long. what is the total distance around the circle?

    asked by maddie
  17. math

    Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. interval [0,72] sin square root of xdx where n=4

    asked by konduru
  18. math

    How can i divide a parallel line of 40cm into ratio 3:2:3

    asked by Owolabii Tywo
  19. statistics

    What is the alternative hypothesis for a null hypothesis stating that the average time a person keeps a cell phone is at most three years. Answer: Ha: mu > 3 State the null and alternative hypotheses for the following: You are investigating a complaint

    asked by Anonymous
  20. physics

    An sky object accelerates at 2m/s calculate the acting force on it

    asked by Kachinga
  21. Physics

    suppose the camera has only one len .if i want to take a sharp image of a distant object,how should the len move,forward or backward.how about if nearby object?

    asked by amper
  22. pysics

    A river is one mile wide and the water flows at the rate 3 miles/hour. If you can paddle a canoe 5 miles/hour in still water, then how long will it take you to paddle across the river and back? How long would it take you to travel one mile upstream

    asked by christine
  23. lpu

    A 100g wire is held under a tension of 250 N with one end at x = 0 and the other x = 10m. At time t = 0, pulse 1 is sent along the wire from the end at x = 10m. At time t = 30ms, pulse 2 is sent along the wire from the x = 0. At what position x do the

    asked by vkm
  24. physics

    Find the angular velocity of a body rotating with an acceleration of 2 rev/s square as it completes the 5th revolution after the start.

    asked by Gaurav
  25. Math

    ∫sin^5 t/cos^2 t dt

    asked by Adriana
  26. Chemistry

    50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of

    asked by Georgia
  27. Biology

    Why does the diameter of arterioles increase when there is a constriction of smooth muscles?

    asked by saphire
  28. blj

    If 34 grams of ammonia react, how many grams of water formed?

    asked by Anonymous
  29. Management

    You would be well familiar with the term ‘contingency’. During a project you may face certain contingencies. In your opinion, should ‘contingency costs’ be included in project proposal. Why or why not, support your answer with appropriate reasons.

    asked by Yasser
  30. physic

    At which point between earth and sun, the intensity of the gravity field of the earth and sun are equal, if the mass of Earth is 6 x 10 to power 24 kg, the mass of the sun is 2 x 10 to power 30 kg while the distance between them is 15 x 10 to power 7 km?

    asked by fjolla
  31. ENGLISH/JOURNALISM

    Read the following information and ask yourself what is the most important or interesting fact. Write a focus sentence identifying that newsworthy angle: a. The New England Journal of Medicine released a study today. The study says people who abruptly quit

    asked by blaze
  32. English

    I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? I wrote them but I need your check: Biodiversity in water and waterways in

    asked by Henry2
  33. English

    Can you give me a good topic for 30 minute discussion in German language? I just want to warn you that the class is pretty lazy, unmotivated, always sleepy and uninterested. They are 18 and 19 years old and are learning German for 9 years as a foreign

    asked by Mark
  34. Science/English

    writeacher, I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? The project is addressed to 16-year-old students with an

    asked by Henry2
  35. English

    Could you please check this? Thank you. 1) My English colleague will be at school this afternoon to welcome the French delegation. As I told you, I have afternoon lessons and then I'll be busy picking up my child from school.

    asked by Henry2
  36. geometry

    mDF=5.8 ,m

    asked by pervez
  37. physical

    A bullet of mass 0.01 kg is moving horizontally with a speed of 100 m/s when it hits a block of mass 2 kg that is at rest on a horizontal surface with a coefficient of friction of 0.4. After the collision the bullet becomes embedded in the block.

    asked by dhaval
  38. physical science

    A rectangular container measuring 16cm times 46cm times 67 cm is filled with water what is the mass of this volume of water in kilograms and grams? (take the density of water to be 1000 kg/m cube

    asked by vicky
  39. Math

    I need help with using arrays to multiply

    asked by Jarel
  40. chemistry

    Freshman in clooege decides to try her hand at pickling olives. According to the recipe, she needs to add 3 tsps. of salt to 1 cup diced olives. She erroneously adds 6 tsps instead. Each tsp weighs about 5g and contains 2300 mg of sodium. Determine the

    asked by Sara
  41. Right Triangle Trigometery

    If = 38° and z = 68 cm, what is the value of x to the nearest tenth of a centimeter?

    asked by Kate
  42. math

    At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet

    asked by savannah
  43. Health Finance

    Question Details Consider the following 2007 data for Newark General Hospital (in millions of dollars): Static Flexible Actual Budget Budget Results Revenues $4.7 $4.8 $4.5 Costs 4.1 4.1 4.2 Pro?ts 0.6 0.7 0.3 a. Calculate and interpret the pro?t variance.

    asked by molamidi
  44. Algebra

    Solve 1/3(3x-6)^3+4

    asked by Anonymous
  45. math

    Write this as a ratio 3months to 3 years

    asked by claudia kreuzer
  46. Physics

    I have to create a teaching aid for physics based on the principles i have learnt like gravitation , mechanical properties and many more. I am not able to find the right experiment to demonstrate infront of my teacher.Please help me deal with this by

    asked by confused
  47. physics

    A soccer player kicks the ball toward a goal that is 27.8 m in front of him. The ball leaves his foot at a speed of 18.5 m/s and an angle of 30.4° above the ground. Find the speed of the ball when the goalie catches it in front of the net. (Note: The

    asked by Kelly
  48. Physics

    A cubic box of volume 4.2 multiplied by 10-2 m3 is filled with air at atmospheric pressure at 20°C. The box is closed and heated to 195°C. What is the net force on each side of the box? My attempted solution: .042^(1/3) = .3476 m for the area .042^(2/3)

    asked by Anonymous
  49. physics

    in the hydraulic machine shown, you observe that when the small piston is pulled down 10cm, yhe large piston is raised 1 cm. if the small piston is pushed down with a force of 100n, what is the most weight that the large piston can support?

    asked by john
  50. physics

    A 45.0 kg object is moving with a velocity of 17 m/s. How long must a 25.0 N force act on the object to bring it to a complete stop

    asked by Karan
  51. English 3

    1. Which sentence states an opinion held by American Romantic writers? a. Cities are centers of corruption and ugliness b. European literature has no traditions worth considering c. Westward expansion is exploitative and dangerous d. Ordinary readers do

    asked by mysterychicken
  52. indruction to business

    strategy to displease a customer

    asked by Tanya
  53. marketing

    Choose a real or made up example of a company, and describe at least three fixed costs the company has.

    asked by Robby
  54. Chemistry

    Using VSEPR what is the shape of ammonia (NH3) and water (H2O)?

    asked by Bob
  55. chemistry

    solar flares containing hot gases can rise to 120000 miles above the surface of the sun. What is the distance in kilometers? how do i set this up??

    asked by julia
  56. Physics

    is that right ideal gas only obey the boyles law under high temp and low pressure?

    asked by Kong
  57. geometry

    The lengths of the sides of a right triangle are a and b, and the hypotenuse is c. Find the area of the triangle. b = 2 in.; c = 6 in. A = sq. in. Click once to select an item at the bottom of the problem. Click again to drop the item in its correct place.

    asked by Anonymous
  58. criminal investigations

    how does investigating a robbery differ from investigating an assault

    asked by Stacy
  59. chemistry

    A copper foil is made from copper, absolutely free of impurities. Which term or terms could be used to describe this sample of copper

    asked by Brandon
  60. math

    how do you solve this equation? .00000000075 = r^4

    asked by dakota
  61. finance

    the patel family recently purchased a home taking out a mortage of $235,000 at 8% for 25 years excluding taxes and insurance what is the monthlt piti payment for their loan

    asked by lyh
  62. math

    Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 6 bikes in 12 hours. Working together how many hours will it take them to make 12 bikes? Please explain showing steps so I can learn it. I don't just need the answer.

    asked by Kelly
  63. physics

    rank higest to lowest air drag? 1)a 5lb lead block teraveling at 95% terminal speed. 2a 5lb styrofoam block at terminal speed? 3)a10lb styrofoam block traveling faster than terminal speed? 4)a 10lb styrofoam block at terminal speed? put in orderfrom least

    asked by taylur
  64. physics

    which of the following determine terminal speed of an object? 1)color 2)weight 3)air density 4)objects density 5)shape/aerodynamics 6)relative speed between air and object 7)surface area encountered by air. label all that apply?

    asked by taylur
  65. Programming II

    Create a test program that defines and uses both the default and non-default constructor of a class. Create a class of students in a college. Make sure you include name, phone number, student number, current course, current GPA, and current grade.

    asked by Sean
  66. physics

    which of the following is traveling faster than its terminal speed? 1)rain 2)snow 3)a shooting star(metor) 4)a rock that has fallen after breaking off a shear cliff face 5)a penny,18s after it has dropped from rest from a tower. 6)a skydiver going ~120mph

    asked by taylur
  67. algebra

    2012 with a power of 2012

    asked by charlie
  68. physics

    which of the followingfactors dircetly affect the amount of air drag on an object? 1)mass 2)weight 3)air density 4)color 5)object density 6)shape/aerodynamics 7)relative speed between the object and air *8)surface area encountered by air?

    asked by taylur
  69. Chemistry

    How many atoms of nitrogen are in a molecule of Al(No3)3

    asked by Frank
  70. Math

    How do I set this up and how to solve it? Russ bought 3 medium and 2 large submarine sandwiches for $29.95. Stacy bought 4 medium and 1 large submarine sandwiches for $28.45. What is the price for each medium and each large submarine sandwich?

    asked by Jane
  71. Math

    A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x. What is the area of the yellow part of the tabletop? Write your answer in factored form.

    asked by Jane
  72. Math

    Please explain to me how to solve: A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.

    asked by Jane
  73. physics

    A 0.25 kg cube of iron is heated and its temperature rises from 23.0 C to 45.0 C. How much heat entered the cube in Joules and in Calories?

    asked by joe
  74. English

    I urgently need you to check these sentences on the Holocaust. Thank you. 1) 27 January was chosen as the date for Holocaust Memorial Day because it was on this date in 1945 that the largest Nazi killing(?) camp Auschwitz-Birkenau was liberated. 2) On this

    asked by Henry2
  75. physics

    A 0.75 kg mass of copper changes temperature from 145.0 C to 46.0 C. How much heat was exchanged in Joules? Did the heat flow into the copper or out of the copper?

    asked by mario
  76. physics

    Heat totaling 2700.0 J leaves a glass of water at 75.0 C to bring it to room temperature (20.0 C). What is the mass of the water in g (ignore the glass)?

    asked by mariah
  77. physics

    Find the constant acceleration of a particle whose velocity changes by 3.06 m/s every 0.093 s.

    asked by Anonymous
  78. durham college

    the pont du gard near Nimes,france, is a roman aqueduct.an observer in a hot air balloon some distance away from the aqueduct determines that the angle of depression to each end is 54 degrees and 71 degrees,respectively.the horizontal distance between the

    asked by Anonymous
  79. Microeconomics

    When average total cost is declining then: a) marginal cost must be less than average cost b) marginal cost must be greater than average cost c) average toal cost must be greater than average fixed cost d) average variable cost must be declining. My answer

    asked by Nicci
  80. geometry

    how do i figure out the length of one side of a triangle if I know one side is 40 meters, and the angle on one side is 90 degrees and the other side is 42 degrees?

    asked by brandon
  81. Chemistry

    Which of the following is more concentrated? (A)0.5%kCl in 1Lwater (B)0.5ppm kCl in 1L water (C)0.5ppb kCl in 1L water (D)ALL are the same

    asked by Chemo
  82. Physics

    Relative to the ground, a car has a velocity of 14.8 m/s, directed due north. Relative to this car, a truck has a velocity of 24.0 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?

    asked by Erin
  83. qchs

    name two congruent angles that measure a 15 degree angl

    asked by Anonymous
  84. English

    You are perfectly right. I wanted to add these sentences, too. I really need your revision. 1) We must remember past atrocities but at the same time we must do something against them. It is for this reason that our school has decided to embark on a

    asked by Henry2
  85. English

    I left out these sentences. Thank you very much for your cooperation. 1) We would eventually like to build on not only the sharing of information between schools but on building an eventual student exchange programme between the schools. 2) This project is

    asked by Henry2
  86. Math

    The number of library books in a school increased by 20% after it bought new books in may. The number increased by another 20% after a bookstore donated 300 books in June. Find the number of books in the library before it bought new books in May.

    asked by Jenny
  87. Huck Fin

    "Two or three days and nights went by; I reckon I might say they swum by, they slide along so quiet and smooth and lovely. Here is the way we put in the time. It was a monstrous big river down there—sometimes a mile and a half wide; we run nights, and

    asked by Jordan
  88. Math

    25% of Lings savings is the same amount as 20% of Neil's savings. Find the ratio of Lings's savings to Neil's savings.

    asked by Calixte
  89. Math

    As many as three instructors are hired for a martial arts class each week. 4:1 student-to-instructor ratio is considered ideal. Find the maximum number of students at each of these classes.

    asked by Angela
  90. algebra

    r/3+7=-4?

    asked by Brenda
  91. math

    what would be the numerator of a fraction that is equivalent to 5/8 and has a denominator of 48?

    asked by diana
  92. Biology/Chemistry

    Consider that the human brain weighs about 1 kg and contains 10^11 cells. Assuming that each cell is entirely filled with water, and knowing that 1 cm^3 of water weighs 1 g, calculate the volume of a brain cell (in picoliters).

    asked by Becca
  93. physics

    a 2.0kg object is pulled horizontally by a force of 6.3N along the floor where the coefficient of kinetic friction is o.24. what is the object acceleration

    asked by liz
  94. math

    Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 12 bikes in 6 hours. Working together how many hours will it take them to make 12 bikes? Please explain showing steps so I can learn it. I don't just need the answer.

    asked by Kelly
  95. Computer science

    As a member of the Information Security team at a small college, you have been made the project manager to install an access control system (ACS) in a dormitory. The ACS will automatically unlock the dormitory doors via an electronic proximity reader and

    asked by kara
  96. physics

    A storage tank of negligible mass and 30 m high is filled with gasoline

    asked by teresa
  97. Intergrated physics and chemistry

    A 52.0-kilogram skateboarder does a trick on a half-pipe. During the trick, he reaches a speed of 8.90 m/s. The radius of the half-pipe ramp is 3.00 meters. What is the minimum centripetal force necessary to keep the skater on the ramp?

    asked by Micah
  98. Physics

    Cx = -13.2 m/s, Cy = -10.4 m/s Direction in ° counterclockwise from the positive x-axis & Bx = +100.0 m, By = -106.0 m Direction in ° counterclockwise from the positive x-axis Also Dx = +3.2 m/s2, Dy = +7.6 cm/s2 Find magnitude m/s^2 & Direction in °

    asked by Anonymous
  99. physics

    Given that the tank is shaped like a right circular cylinder with a height of 30 m and with a base radius of 10m. The tank is attached to a steel cable of negligible mass and immersed in water. Calculate the tension (force) in the cable before and after it

    asked by teresa
  100. geometry

    The diagonals of rhombus FGHJ intersect at point C. If side GH is equal to x + 9 and side JH is equal to 5x – 2, find x.

    asked by d-boe
  101. Physics

    Vector Barrowbold has magnitude 9.4 and direction 14° below the +x-axis. Vector Carrowbold has x-component Cx = -1.6 and y-component Cy = -7.7. Compute direction of Carrowbold & direction of Carrowbold + Barrowbold. Also direction of Carrowbold −

    asked by Anonymous
  102. geometry

    If FGHI is a rectangle and angle G is equal to 2x + 5, find x.

    asked by d-boe
  103. Physics

    Margaret walks to the store using the following path: 0.435 miles west, 0.280 miles north, 0.300 miles east. What is her total displacement? That is, what is the length and direction of the vector that points from her house directly to the store? Find

    asked by Anonymous
  104. geometry

    1)YWXZ is a parallelogram with diagonals that intersect at point S. If WS = 10 and SZ = 2x – 6, find x.

    asked by d-boe
  105. math

    How could you use multiplication to find 7+7+7?

    asked by Anonymous
  106. central highschool

    ken's cartoons for the school newspaper, but they wouldn't be good

    asked by kim
  107. math

    After working 4 hours frank made 21 machine parts. it's the same rate how many parts can he make in 7 hours

    asked by Anonymous
  108. science

    true or false,all mixtures are also solutions.

    asked by Gabby ( 5 grade)
  109. science

    when wood burns, the ashes have different chemical properties from the wood.true or false?

    asked by Gabby ( 5 grade)
  110. Physics

    A tin can is filled with water to a depth of 50 cm. A hole 16 cm above the bottom of the can produces a stream of water that is directed at an angle of 35degrees above the horizontal. Find the range of this stream of water. Find the maximum height of this

    asked by Dave
  111. physics

    A horizontal pipe carries oil whose coefficient of viscosity is 0.00010 ns/ m^{2}}. The diameter of the pipe is 5.5 cm, and its length is 60 m. What pressure difference is required between the ends of this pipe if the oil is to flow with an average speed

    asked by Dave
  112. science

    true or false,when water changes state, it looks and feels different, but it is still water.

    asked by Gabby ( 5 grade)
  113. physics

    In a historical movie, two knights on horseback start from rest 93 m apart and ride directly toward each other to do battle. Sir George's accleration has a magnitude of 0.22 m/s2, while Sir Alfred's has a magnitude of 0.34 m/s2. How far from Sir George's

    asked by Mi26
  114. English

    Thank you very much! I still haven't found anything on biodiversity in water. I need to find a website which explains the possible scientific objectives of this type of topic. Remember that the research will be carried out by 17-year-old Italian students

    asked by Henry2
  115. math

    U1 = -4 What would be the first five terms of this sequence?

    asked by 12-year-old-poet
  116. math

    Explain how multiplication can help you find 7+7+7.

    asked by sandra
  117. english

    i need to write carecter sketch esay nedd help due 1/27/12 friday need help ASAP

    asked by raj
  118. math

    calculate the mass (in SI units) of a 150ib human being? m= Calculate the weight ( in English units) of a 200kg rhino m=

    asked by bree
  119. Social Studies

    How many years were there between the Lousiana Purchase and its exploration?

    asked by Andrew
  120. math

    WRITE THE FOLLOWING AS AN ALGEABRAIC EXPRESSION: FOUR, MULTIPLIED BY THE QUOTIENT OF A NUMBER AND NINE

    asked by marisela
  121. chem

    A solution initially contains 0.350 mol/L of A and 0.750 mol/L of B. A reaction occurs according to the equation 2 A(aq)+B(aq) 3 C(aq)+D(s) At equilibrium, [C] is found to be 0.100 mol/L. What is the value of Keq?

    asked by ami
  122. English

    I left out these sentences. Could you please check them? Thank you. 1) We are delighted to welcome today representatives from the French and the German school with whom we will embark (work?) on our Comenius project. 2) We have searched with difficulty to

    asked by Henry2
  123. physics

    Suppose a car is traveling at 17.0 m/s, and the driver sees a traffic light turn red. After 0.570 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 9.00 m/s2. What is the stopping distance of the car, as measured

    asked by Mi26
  124. geometry

    The measures of all angles in a regular octagon are (4x + 12)°. Find the value of x. Show equations and all work that leads to your answer

    asked by FlowerChild
  125. physics

    A metal rod of length 90cm has a disc of radius 24cm fixed rigidly at its centre,and the assembly is pivoted from its centre. Two forces each of magnitude 30N,are applied normal to the rod at each end so as to produce a turning effect.A rope is attached to

    asked by Shanti
  126. math

    1/4(9y-3)+ 1/8(6y+9)

    asked by marisela
  127. math

    in 1991 the life expectancy of males was 65.4 in 1998 it was 68.8 let e represent life expectancy in year t and let t represent number of years since 1991

    asked by jessica
  128. algebra

    after solving a rational equation, why is it important to check your answer? How is this done? What happens if you are checking a solution for the rational expression and find that it makes one of the denominators in the expression equal to zero?

    asked by debby
  129. Chemistry

    What is the full balanced equation?? Hg2(NO3)2(aq) + HBr(aq) → ?

    asked by Shea
  130. Physics

    The rock reaches a maximum height of 20.4 m above the top of the cliff before falling to the base of the cliff, landing 5.56 s after it was thrown. How high is the cliff?

    asked by Fletcher
  131. Temperature(Math)

    40+ -6+ -10=

    asked by Andrew
  132. Physics

    A cyclist starts at the top of a straight slope with an initial velocity of 2.82 m/s. Five seconds later, she is at the bottom of the incline, having traveled 45.8 m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be

    asked by Fletcher
  133. physics

    A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?

    asked by Dave
  134. calc

    h(t)=-16t2+13t+1 find the height of the object at the time when the speed is zero.

    asked by Anonymous
  135. Math

    A spinner is divdided into 10 equal sectors and numbered 1 through 10. Find the probability as a fraction, a decimal and a percent for P(composite numbers.

    asked by Micheal
  136. calc

    Use the Midpoint Rule to approximate the integral The integral from 2 to 7 of (–1x–6x^2)dx

    asked by niki
  137. physics

    A hot-air balloon plus cargo has a mass of 1740 {\rm kg} and a volume of 12030 {\rm m^3}. The balloon is floating at a constant height of 6.25 {\rm m} above the ground. What is the density of the hot air in the balloon?

    asked by Dave
  138. English

    I urgently need you to check the agenda again: Agenda of the Comenius project 1) 27 January 2012 Greeting of the principal of "... high school" (to the German and French schools) in the teachers' library. 9 pm -12pm Visit of the school (and its

    asked by Henry2
  139. Chemistry

    What is the correct net equation for: LiOH(aq) + HClO(aq) → LiClO(aq) + H2O(l)?

    asked by Shea
  140. Business Fiance

    On November 1, 2009, Broom Company received a bank statement that showed a $2950 balance. Broom showed a $4010 checking account balance. The bank didn't return check No. 124 for $1080 and check No.138 for $720. A $3200 deposit made on October 30 was in

    asked by Terry
  141. Temperature(Math)

    At 5 o'clock in the morning, the temperature at the top of the race course was -13o. By 10:00 A.M., it was +12o. How much had the temperature risen? Answer: 25o The temperature rose from -12o to +23o by noon. How much did the temperature change? Answer:

    asked by Andrew
  142. English

    A girl tells her mother she is volunteering at an animal shelter because it makes her feel good, but the truth is that she has been offered extra credit in one of her classes to do so. Her motivation is 1.)a lie 2.)external 3.)idiomatic 4.)idiomatic

    asked by Lexi
  143. pre algebra

    What is -7 - 8? I don't know how to solve this... please help!

    asked by gabby
  144. english

    For English II I'm supposed to write a persuasive essay on a speech such as the "I Have A Dream Speech" or similar. I don't particularly care for King's speech. What are some other speeches I could use?

    asked by Sarah
  145. math

    estimate the sum first then add simplify 2 5/6+9 3/8

    asked by cupcake
  146. ELA

    They gave us a paper where we have to correct the mistakes. My twin cousins I have identical twin cousins, Joe and John. They look exactly alike except that Joe has a tiny birthmark under his chin. Unless you look very closely,youd miss it. Both have

    asked by Andrew
  147. poetry

    i need to write a a-a-b-b poem but about a celebrity and it has to rhyme please help give some ideas thank you.

    asked by help please !!!!!!!!!!!!!!!!!!!!
  148. math

    a 2 digit number, divisable by 6, the 10s unit is 1/2 of the digit unit

    asked by Cait
  149. math

    what is the Evaluate expression for 30/d

    asked by shion
  150. Math

    The temperature rose from -12o to +23o by noon. How much did the temperature change? Answer: 11o I don't get how it's wrong

    asked by Andrew
  151. biol

    How did tree productivity change over time in each of the forest stands, and how was productivity altered by N additions? Consider possible reasons to explain the pattern that you see in the data.

    asked by ami
  152. math

    what is the Evaluate expression for 30/d

    asked by shion
  153. AP World History

    What reasons might there be for the timing, rapidity, and direction of Muslim territorial expansion? Ughhh, I searched the chapter in the textbook, the chapter outline on the packet and google and I'm getting so stressed out, someone please help me?

    asked by Brianna
  154. business communication

    ethical or un ethical Telling an associate and close friend that she shouls pay more attention to her work responsibilities, or management will fire her

    asked by livonbrushy
  155. calculus

    Find Mx, My, and (x, y) for the laminas of uniform density ρ bounded by the graphs of the equations. (Use rho for ρ as necessary.) y =1/5 y = 0 x = 4

    asked by Rox
  156. Social Studies

    How many years were there between the Lousiana Purchase and its exploration? Is it 104 years? 1699-1803?

    asked by Andrew
  157. physics

    In the javelin throw at a track-and-field event, the javelin is launched at a speed of 35.0 m/s at an angle of 33.7 ° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes.

    asked by Erin
  158. Chemistry

    What is the Heat Change in kilojoules when 61.5 g of steam is cooled from 111 degrees C to 100 degrees C?

    asked by Phil
  159. Law

    What factors does a judge have to consider when sentencing?

    asked by rebecca
  160. Spanish

    Could someone please check the answers I have & also help me with a few? Thanks! 1. Nosotros ______ al Departamento Chocó para las ocho. -habremos llegado. 2. ¿Vosotras ______ cual mesero van a ocupar? -habréis decidido 3. Sofía y Carlos ______ a Juan

    asked by Amy
  161. physics

    a closed system is observed to have 22 objects in it.initially the total energy of the system is 8598J.after 9.3hours have passed,how much total energy will the syatem contain?

    asked by taylur
  162. physics

    A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ρ = 0.180 kg/m3). It is then released from rest on the bottom of a pool of water that is 4.00 m deep. (a) Neglecting frictional effects, show that the shell rises

    asked by teresa
  163. Biology

    Which of the following organs would not be visible if you cut the body in a mid-sagittal section? Explain? a. Brain b. stomach c. heart d. kidneys

    asked by Jerome
  164. physics

    a lacrosse player slings the ball at an angle of 30 degrees above the horizontal with a speed of 20m/s. How far away should a teammate position herself to catch the ball?

    asked by Anonymous
  165. math

    rounding fractions to 0, 0.5, or 1. where would 0.599 lay? Can you round fractions down?

    asked by lexi
  166. Science/English/Math

    I was selected to the Math Academy at my school. I have it every wednesday after school. They are going to prepare me for the NYS Math Exam!!! :) I got a 80 on my Science Quarterly Exam!!!! :) (i didn't know some of my friends and other people were saying

    asked by Laruen
  167. physics

    the object is traveling in a circle,which one of the statements are true. choose all that apply? 1)the object has a net force 2)object accelerting 3)object at constant velocity 4)object is speeding up 5) object is slowing down

    asked by taylur
  168. physics

    A shot-putter launches a 7.5 kg shot with a speed of 12 m/s at an angle of 37 degrees above horizontal. If, upon release, the shot was 2.0 m above the ground, determine the horizontal range.

    asked by Anonymous
  169. Social Studies

    How did the effort of Daniel Boone and the Louisiana Purchase encourage people to move westward? Daniel created a trail, which came to be called Wilderness Road. Soon thousands of people were going West. In 1803 the Lousiana Purchase was finished it was in

    asked by Andrew
  170. Math

    Solve for x in terms of y: y = (x^3/4)-(x^2/3)-(x/2)+3cosx

    asked by John
  171. Science 7R - Homework Check

    1. List 4 reasons biologists use scientific names instead of common names in their communications. Answer 1. Scientific names help scientists aviod errors in communication. 2. Organisms with similar evolutionary histories are classified together, 3. The

    asked by Laruen
  172. Algebra 1 Honors

    A diver is working 10 feet below the surface of the water. The gap between the water and the deck of his support barge is 1/8 of the total legnth of the air hose , and 3/4 of the total legnth remains on the reel. What is the maximum working depth without a

    asked by Sally
  173. reading

    In the Year of the Boar and Jackie Robinson what is your reaction to Senora Rodriquez?

    asked by Dakota
  174. physics

    a ball is projected at an angle with an initial velocity of 8m/s and an initial vertical velocity of 29.4m/s. Show trajectory diagram. Determine: a) displacement b)height at peak c)final speed

    asked by Anonymous
  175. chemistry

    how many significant figures in 200600

    asked by alpna
  176. Law

    Why are search warrants necessary?

    asked by rebecca
  177. chemistry

    4.0 g of sodium bicarbonate 84 g/mol) decomposes to form carbon dioxide, water, and sodium carbonate (106 g/mol). What is the theoretical yield in grams for sodium carbonate?

    asked by Danae
  178. Chemistry

    Calculate the heat released from 61.5 g of steam at 111 degrees C is converted to water at 39 degrees C. Assume the specific heat of water is 4.184 J/g*C, the specific heat of steam is 1.99 J/g*C and the enthalpy.H.vap= 40.79 KJ/mol of water

    asked by Phil
  179. physical science

    by what means can earth scientists predict discharge of a stream afeter a rainstorm?

    asked by kimberlie
  180. social studies

    A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when

    asked by Anonymous
  181. Physics

    A 1.00 kg block is attached to a spring with spring constant 14 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 31 cm/s. What is the amplitude of the subsequent oscillations?What is

    asked by Taylor
  182. business communication

    Ethical choices Knowing that I have many friends in the company my boss approaces me as asked me to start reporting any behavior problems and violated company policies to her what issues should i dicuss with her before i respond to her request

    asked by livonbrushy
  183. Law

    What factors could a defence consider for their arguments when persecuting the accused to get a lesser charge? is this information applicable to the question?: Guilty Plea may = Lesser Sentence If an offender admits responsibility early on, this is a

    asked by rebecca
  184. Math

    15 2/3 = x + 12 5/6 thanks

    asked by Mickaela
  185. physics

    If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should

    asked by Brandon
  186. chemistry

    Mass of sample 0.0581 g Mass of BaSO4 0.0860 g What is the mass of sulfate?

    asked by Lucas
  187. Math

    Justine measures the milk in two different cartons. One carton contains 1 liter and 665 milliliters of whole milk, and the other carton contains 1 liter and 183 milliliters of chocolate milk. How much more whole milk is there than chocolate milk?

    asked by Jake
  188. Math

    Reasoning What is the greatest number you can make using these digits? 572. ..... 257 572 725 752

    asked by mary
  189. Math Challenge

    Please help if can with the following problem, I have submitted the answers to the other problems like this one and were told they were incorrect. I was excited and greatful for receiving both answers because I have no clue how to work the problem. 1st

    asked by Please,Please Help
  190. physics

    what is the mass of a car that weighs 60 000 Newtons on the moon?

    asked by Ji-Min
  191. Law

    What factors could a defence consider for their arguments when persecuting the accused to get a lesser charge?

    asked by rebecca
  192. english

    I have a four page paper I have written for a scholarship. It is still in its rough draft. Would anyone be willing to proof read it?

    asked by martha
  193. Business Finance

    Sullivan's Handbags mark up their bags at 45% of the selling price. Pat Sullivan saw a bag at a trade show that she would sell to her customers for $85. What is the most she could pay for the bag and still retain the 45% markup of the selling price?

    asked by Renee
  194. algebra 2

    Find the largest integer k such that the polynomial x2 + 12x + k can be factored into the product of two linear polynomials, each of which has integral coefficients

    asked by lynda
  195. Math

    Explain how to do this with steps please. 1. Simplify cos(x-y)+cos(x+y)/cosx Formula: cosxcosy= cos(x+y)+cos(x-y)/2 cos(x-y)+cos(x+y)/cosx =cosxcosy/2cosx

    asked by Jake
  196. Chemistry 2

    A student prepares phosphorous acid by reacting solid phosphorous triodide with water PI3+H2O-->H3PO3+HI The student needs to obtain 0.250L of phosphorous acid. (d=1.651g/mL). The procedure calls for a 45.0% excess of water and a yield of 75.0%. How much

    asked by krloz
  197. math

    Mrs. Lennon buys 5 airplane tickets for her family. They each have one ticket. How many members are there in Mrs. Lannon's Family? My answer is 5

    asked by Meil
  198. 3 grade english

    choose a verb from the list to replace each underlined word or words. change each verb to the correct tence if necessary. write the sentence. view, leap, enjoy they gave this sentence and they gave this word and they say change each verb. they give this

    asked by dw
  199. math

    1-3/6=

    asked by Isabella
  200. physics

    If i have three resistors in parallel and series, then the first resistor (series) and the second resistor (parallel) should have the same average of the total voltage? is this true? i think it should

    asked by Brandon
  201. Chemistry

    given what you know about periodicity , predict whether lithium sulphate is more or less soluble in water than sodium sulphate

    asked by Maame
  202. Business Fianance

    Jeff Sellers bought 200 shares of Radio Shack stock at $22.35. Eight months later, he sold the stock at $31.76. Assuming a 2% commission charge, what is the bottom line for Jeff?

    asked by Renee
  203. Chemistry

    I did the work, but I need help checking it... A compound contains 83.24% by mass carbon. Calculate the molar mass of the compound if it contains 5 moles of carbon per mole of compound. This was my process: I took 100g of compound and found that there are

    asked by Kyle
  204. World Civilization

    what was the fighting in russia and se europe known as?

    asked by kayla
  205. GeOmEtRy!!!

    What is the x-intercept of the linear function 6x-10y= -15?

    asked by VERONICA
  206. U.S History

    explain the debate in McCulloch v. Maryland and the final decision in the case. why was the decision significant?

    asked by Andrew
  207. geometry

    An interior decorator is buying a fringe for the edge of a rug in the shape of a regular octagon. The side length of the rug measures 1/2 inch on a diagram with a scale 1 inch to 4 feet. How many feet of fringe will be needed for the entire edge of the

    asked by Kaity
  208. Differential Equations

    A rabbit starts at the origin and runs up the right branch of the parabola y=x^2 with speed a. At the same time a dog, running with speed b, starts at the point (c,0) and pursues the rabbit. Write a differential equation for the path of the dog

    asked by Samantha
  209. math

    can you help math question units rates find unit rate for each situation read 50 pages in 1 hr 25 min i got : 50 divide by ttl 85 min and got 0.588 = .59 hike 5 mile in 2hr 10 min i got: 130 min ttl divide 5mile is got 26 mile per min are these right?

    asked by marko
  210. Math

    Look at the following division sentence: 6 divided by 0 = : Explain what rule you would use to complete it.

    asked by Khys
  211. social studies

    How is the physical geography of northern Europe connected to the economies of northern Europe?

    asked by Mona
  212. social studies

    If you had to move to a Northern European country, how would you decide which country you would move to?

    asked by Mona
  213. Science 7R - Homework HELP!

    why can common names cause confusion? PLEASE HELP ME!!! I REALLY NEED HELP WITH THIS QUESTION!

    asked by Laruen
  214. math

    0.629 divided by 8.5 equals

    asked by Anonymous
  215. Physics

    A cyclist starts at the top of a straight slope with an initial velocity of 3.02 m/s. Five seconds later, she is at the bottom of the incline, having traveled 49.6 m. Find her velocity at the bottom of the hill and her acceleration, assuming it to be

    asked by Aaron
  216. English

    I left out these few sentences. Thank you 1) The harvest begins around mid-October; the grapes are collected by hand and laid into boxes. 2) The must ferments 15-20 days in stainless steel vats between 25 and 28°C The elevage in Slavonian oak casks

    asked by Henry2
  217. chemistry

    Aluminum metal generates H2 gas when dropped into 6.00 M HCl. Calculate the mass of H2 that will form from the complete reaction of 0.365 g Al with 8.40 mL of 6.00 M HCl.

    asked by annie
  218. U.S History

    explain the debate in McCulloch v. Maryland and the final decision in the case. why was the decision significant? plz answer i rly need help

    asked by Andrew
  219. math unit rate question

    Yolanda and Yoko ran in 100 yd dash. When Yolanda crossed the finish line, Yoko was 10 yrd behind her. The girls then repeated the race, with Yolanda starting 10 yrd behind the starting line. If each girl ran at the same rate as before, who won the race?

    asked by marko
  220. Calculus 2

    U subtitution for Arc Tan(x)/ x^2 +1 dx

    asked by Michelle
  221. Finite MAth

    Assume that the set S has 7 elements. How many subsets of S have at most 3 elements

    asked by Bryan
  222. Math

    An alien rocketship is travleing at a speed of 0.024 miles per minute. At this speed, how many inches will it travel in 1 second

    asked by Cassidy
  223. physics

    A metal rod of length 90cm has a disc of radius 24cm fixed rigidly at its centre,and the assembly is pivoted from its centre. Two forces each of magnitude 30N,are applied normal to the rod at each end so as to produce a turning effect.A rope is attached to

    asked by Shanti
  224. English

    The speaker in “I, Too, Sing America” survives adversity because he feels what? 1.)faith that he will one day be affirmed by white America. 2.)he has uncovered the hypocrisy around him. 3.)he is better than the people who are oppressing him. 4.)hope

    asked by Lexi
  225. Physics

    A football player carrying the ball runs straight ahead at the line of scrimmage and directly into a wall of defensive linemen. The ball carrier has an initial speed of 8.48 m/s and is stopped in a time interval of 0.186 s. Find the magnitude and direction

    asked by Aaron
  226. Accounting

    Assets = Liabilities + Equity How can you tell which company have the strongest financial position? Is buy the highest in assets, highest in liabilities, or highest in equity? I am confused.

    asked by Ana
  227. Math problems

    on friday natalie ran 1/2 mile. if she ran further on saturday, which fraction could represent the distance she ran on saturday? 2/5 mi, 3/6 mi, 3/8 mi, 4/6 mi

    asked by Steven Hernandez
  228. physics

    Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons

    asked by jason
  229. physics

    A cat that has a mass of 6 kg climbs to the top of a tree that is 20 m high. How much potential energy does the cat have at the top of the tree?

    asked by Jay
  230. Physics

    In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.71 x 105 N/C during the first 5.49 cm of the tube's length; then they move at essentially constant velocity another 47.9 cm before hitting the

    asked by jason
  231. Pre-Algebra

    Montel spends $0.75 every time he plays his favorite video game. Montel has $10. write and solve an inequality that shows how many times Montel can play the video game.

    asked by Me PLZ HELP!!!! TNX
  232. question

    hello,i'm just need to asking something if i was take ACT text since 2009 and 2011 i pass the test with 15 point but i need to graduate since 2004 did you think i am need the 18 poins.

    asked by Lilie
  233. English

    Why don’t the narrator and the other man want to hold Edward for ransom? Is their motivation internal or external? in “I, Too, Sing America”

    asked by Lexi
  234. social studies

    cam yall name me 12 pros n cons fo social studies

    asked by perry holmes
  235. Science 7R - Homework Check (Q3)

    What's the function of a dichotomous key? My Answer: Dichotomous Key use by scientists are arranged in steps with two descriptive statements at each step. Is my answer to this question is correct??? BTW: I got this answer from my textbook in that section

    asked by Laruen
  236. Pre-Algebra

    write an inequality that can be solved using the Division Property of Inequality, where the symbol is NOT reversed.

    asked by Me PLZ HELP!!!! TNX
  237. soc.

    The outlawing of slavery and extending voting rights to women seem to indicate that ethics can have beneficial results. Give an example from the past that indicates a similar result or a current social policy that might be regarded as wrong, which

    asked by john
  238. calculus

    Let f(x)=(x^2)+x+14. What is the value of f(x) for which the tangent line to the graph of y=f(x) is parallel to the x-axis?

    asked by tom
  239. Math

    √175

    asked by Cassidy
  240. math

    3rd grade create an algorithm that has a difference of 20

    asked by Ali
  241. Math

    Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2.28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?

    asked by Maya
  242. Math

    Glenda wrote 1/7 of her paper on Monday, 1/14 of her paper on Tuesday, and 2/28 of her paper on Wednesday. She said she wrote more than half of her paper. Is she correct? Why or why not?

    asked by Maya
  243. math

    Katie is 3/5 of the way to Brianna's house. Larry is 7/10 of the way to Brianna's house. How much closer to Brianna's house is larry

    asked by Maya
  244. Finite MAth

    Assume that you have 6 different types of vegetables and 9 different types of fruit. A vegetable salad consists of a mixture of any 3 types of vegetables, and a fruit salad consists of a mixture of 3 kinds of fruit. (1) In how many different ways can you

    asked by Bryan
  245. Finite MAth

    Assume that the committee consists of 5 Republicans and 7 Democrats. A subcommittee consisting of 6 people is to be selected. (1) How many such subcommittees are possible if each subcommittee must contain exactly 3 Republicans and 3 Democrats? (1) How many

    asked by Bryan
  246. finite MAth

    Assume that the student has a cup with 14 writing implements: 7 pencils, 5 ball point pens, and 2 felt-tip pens. (1) In how many ways can the student select 8 writing implements? (2) In how many ways can the selection be made if no more than one ball point

    asked by Bryan
  247. finite MAth

    dent who wants to buy 3 CDs, but assume that there are 4 CDs featuring the piano, 6 CDs featuring the trumpet, and 7 CDs featuring the saxophone. (1) In how many different ways can the 3 CD's be selected? (2) In how many ways can the selection be made if

    asked by Bryan
  248. mortgage rates

    what would the monthly payment be on a $115,000 home with a 4.4 percent annual interest?

    asked by Cheryl
  249. math

    the volume of a prism is 48 cubic centimeters. the area of the base of the prism is 8 square centimeters. what is the height of the prism? draw a picture

    asked by claude
  250. Physics

    Sally travels by car from one city to another. She drives for 40.2 min at 80.0 km/h, 12.0 min at 105 km/h, and 45.0 min at 40.0 km/h. She spends 13.7 min eating lunch and buying gas. (a) Determine the total distance traveled in km. (b) Determine the

    asked by Paige
  251. Math

    Damon, how did you get your answer?

    asked by Maya
  252. Math

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

    asked by Maya
  253. social studies

    what made constantine suppurt christianity?

    asked by cameron
  254. Chemistry

    What is the balanced equation for the reaction between sodium tetraborate and sulfuric acid?

    asked by Greg Drake
  255. math

    at the pet store there are three pets in each cage. If there are between 14 and 25 dogs how many cages could have dogs in them?

    asked by joy
  256. Math

    Explain how to do this with steps please. 1. Simplify cos(x-y)+cos(x+y)/cosx I did some of these so far, don't know if it is correct. Formula: cosxcosy= cos(x+y)+cos(x-y)/2 cos(x-y)+cos(x+y)/cosx =cosxcosy/2cosx

    asked by Jake
  257. physics

    Calculate the force of gravity on a 10 kg mass if it were 6.4x10^6 m above Earth's surface (that is, if it were 2 Earth radii from Earth's center.)

    asked by ginger
  258. trig

    If theta is the measure of an angle in standard position with the given conditions, find the quadrant(s) in which the terminal side of theta lies. a) cot theta < 0 b) cos theta > 0 , csc theta < 0

    asked by Anonymous
  259. business communication

    revise sentence on a 10 grade level. It is imperative that consumers be unrestrained in determining their preferences.

    asked by tamika
  260. Physics

    is it right that ideal gas only obey the boyles law under high temp and low pressure?

    asked by Kong
  261. trig

    Find the exact value. Without using a calculator a) cos (-17pi/6) b) sec (3pi/2)

    asked by Anonymous
  262. trig

    Are 22pi/5 and 100 degrees coterminal? explain.

    asked by Anonymous
  263. accounting

    E4-19 On December 31, the adjusted trial balance of Oslo Employment Agency shows the following selected data. Accounts Receivable $24,000 Commission Revenue $92,000 Interest Expense 7,800 Interest Payable 1,500 Analysis shows that adjusting entries were

    asked by bill
  264. Math

    Subtract: 7 gal 2 qt 1 pt – 5 gal 3 qt ½ pt I'm stuck plz help.

    asked by George
  265. trig

    The second hand on a clock is 8 inches long. If the second hand travels a distance of 10pi inches, what is the positive radian measure of the angle that the second hand travels through?

    asked by Anonymous
  266. Physics

    What is the impact speed when a car moving at 114.0 km/h bumps into the rear of another car traveling in the same direction at 104.5 km/h?

    asked by Paige
  267. physics

    an object of mass 1kg falls a distance 5m on a horizontal surface and bounce to a vertical height of 2m.calculate the change in momentum

    asked by faith
  268. Physics

    Which of the following desceriptions about ideal gas is/are correct? 1)An ideal gas obeys Boyle's law only under high temp and low pressure 2)the molecules of an ideal gas have no size 3)the internal energy of an ideal gas consists of kinetic energy only

    asked by Kong
  269. chemistry

    what is molar concentration of a solution obtained by dissolving 560cm of hydrogen chloride gas at s.t.p in 92.5cm of water

    asked by faith
  270. Chemistry

    Consider the following reaction. 4 Al(s) + 3 O2(g) → 2 Al2O3(s) It takes 1.00 L pure oxygen gas at STP to react completely with a certain sample of aluminum. What is the mass of aluminum reacted?

    asked by Zoey
  271. Statistics

    . A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for

    asked by Sharon
  272. math

    For 3 collections, the mode was 126 and the range is 26. What are the 2 possibilities for the number of items in each collection?

    asked by karen
  273. Math

    Ms. Sue. Are any of them correct

    asked by Maya
  274. trig

    If the point (-3,0) lies on the terminal side of angle theta in standard position find: a) csc theta b) cot theta

    asked by Anonymous
  275. physics

    what is velocity

    asked by faith
  276. trig

    If point (3, -8) lies on the terminal side of an angle A in standard position, find: a) sinA b) tanA

    asked by Anonymous
  277. STATISTICS

    the percentage of adults who have at some point in their life been told that they have hypertension is 23.53%. If 8 adults are randomly selected, find the probability that between 2 and 4 of then inclusive have been told that they have hypertension

    asked by amber
  278. trig

    If point G(a,b) lies on the terminal side of angle theta in standard position, what is the value of sin(theta) if point G also lies on the unit circle?

    asked by Anonymous
  279. chemistry

    50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of

    asked by Annabelle
  280. Math

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

    asked by Maya
  281. retireement

    • DQ#1- At what age do you hope to retire? How do you plan to incorporate your retirement in your personal financial plan?

    asked by Anonymous
  282. trig

    Find the reference angle for each given angle: a) 325 degrees b) 14pi/3 c) -190 degrees

    asked by Anonymous
  283. Health

    Who all is held responsible for the completeness of medical records and what are some reasons that cause them to be incomplete?

    asked by Jackie
  284. physics

    a force acts on a body 0.5sec changing its momentum from 16.0kg to 21.0kg.calculate the magnitude of the force

    asked by faith
  285. calculus

    Find f'(a). f(t) = t^4 − 7t

    asked by Mary
  286. Physics

    When a load of 0.89 106 N is placed on a battleship, the ship sinks only 1.9 cm in the water. Estimate the cross-sectional area of the ship at water level.

    asked by Anonymous
  287. Physics

    The

    asked by Lisa
  288. Precalculus

    Determine the solutions to the equation 2sinx − cos2x = sin2x for 0 ≤ x ≤ 2π . How do I start this question?

    asked by Melissa
  289. math

    at a local community college, it costs 150 to enroll in a morning section of an algebra course. Supopose that the varible n stands for the number of students who enroll. then 150n stands for the total amount of money collected for this course. how much is

    asked by allie
  290. Physics!! Help!!!!!

    The time dependence of voltage across a discharging capacitor is given by the exponential decay. The voltage on the capacitor at time t= 0 sec is 24 volt. If a 220 +/- 22uF capacitor and 1 Mega ohm (5% tolerance) resistor are used in the RC circuit, what

    asked by Mary
  291. trig

    Find the length of the circular arc intercepted by a central angle of 20 degrees in a circle or radius 5cm

    asked by Anonymous
  292. Physics

    An electric current of 50 +/- 1 mA flows through an electric bulb filament that has a resistance of 10 +/- 2 ohm. Estimate the power dissipated by the filament and the associated error in the power.

    asked by Robert
  293. anatomy

    I have tried to search this and I can't find anything on this. Can you please help?? Name the structures that can be seen in the elastic cartilage?

    asked by matt
  294. physics

    A 0.36 kg soccer ball approaches a player horizontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 21 m/s. What impulse was delivered to the ball by the player?

    asked by lindsey
  295. Math- Alg 2

    A colony of bacteria is growing exponentially according to the function below, where T is in hours. How many bacteria are there after 7 hours? B(T)= 4*e^(0.8)T

    asked by Karen
  296. MATH

    COMPARINGUNIT RATES

    asked by C
  297. geometry

    The hypotenuse of a right triangle is 8cm and one leg is 6cm. Find the length of the other leg. How did my teacher end up with 2 x square root of 7?

    asked by michelle
  298. chemistry

    what volume of dry hydrogen chloride gas at s.t.p will dissolve in 250cm^3 of water to produce a 0.05M solution of water

    asked by faith
  299. mATH

    COMPARING only unit rates EXAMPLES PLEASE

    asked by Ch
  300. Math

    For one pony, thecritical force was 1.16 times its body weight. It experienced a force of 0.75 times its body weight at a speed of 2 meters per second, and a force of 0.93 times its body weight at 3 meters per second. At what speed did the pony switch from

    asked by Aryan
  301. MATH

    How can I find the vertex, axis of symmetry? I know to find x and y intercepts i use the quadratic formula. I am given the parabola y=x^2+6x+5 I do not want the answer.. Just please explain to me how to solve for it. what method do I use???

    asked by tc
  302. chem

    For the equilibrium reaction: CO(g)+H2O(g)CO2(g)+H2(g) the Keq value at 690°C is 10.0. A mixture of 0.300 mol of CO, 0.300 mol of H2O, 0.500 mol of CO2 and 0.500 mol of H2 is placed in a 1.0 L flask. a)Write the Keq expression for this reaction and use

    asked by ami
  303. trig

    Determine if the value of each trig function is positive, negative, zero, or undefined. a) tan 310 degrees b) cos 7pi/6 c) sin -245 degrees d) sec( -7/2)

    asked by Anonymous
  304. geomerty

    how many 2-inch squares fit inside a rectangle 6 inches by 8 inches

    asked by dv
  305. pre-algebra

    what is $200 plus 8% commission?

    asked by jesus
  306. math

    how do u solve a unit rate problem using proportions to solve

    asked by Ch
  307. Precalculus

    Solve the equation (x+3)(x-3) = -9. What are the solutions to the equation if you replace x first with sinx and then with cosx, where 0≤x≤2pi?

    asked by Melissa
  308. Math- Alg 2

    The number of computers sold by BCC depends on the dollar amount, x, that they spend on advertising. How many computers will they sell by spending $80,000 on advertising? Round to the nearest whole number and do not include units in your answer. N(x) = 100

    asked by CAMILA
  309. chemistry

    Balance this equation by following equations of the REDOX Method. Cu + HNO3 --->Cu(NO3)2 + NO + H2O

    asked by David Scott
  310. bio101

    2. Find a media piece—article, video, presentation, song, or other—that recognizes the fundamental concepts of chemistry in biology. Include the link or reference citation for the piece and describe how it helped you better understand how fundamental

    asked by kelly