Questions Asked on
February 22, 2011

  1. Economics

    What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our

    asked by Ann
  2. american government

    What is the establishment clause?

    asked by cheyenne
  3. Intermediate Algebra

    Can someone help me with this problem m-2n=16, 4m + n=1

    asked by Gail
  4. Alegerbra

    21xy,7x^(3)y

    asked by Anonymous
  5. calc

    If dy/dx = xy - y^2 and y(1) = 3, then y (2) = ?

    asked by Erica
  6. Calc

    A rectangle is to be inscribed in a semicircle of radius 8, with one side lying on the diameter of the circle. What is the maximum possible area of the rectangle?

    asked by Erica
  7. Calc

    If dy/dt = 2y/(t(t+2)) for t>0 and y = 1 when t = 1, then when t = 2, y = ?

    asked by Erica
  8. Calc

    The line y = mx+b with b≥2 is tangent to the graph f(x) = -2(x-2)² + 2 at a point in the first quadrant. What are all possible values of b?

    asked by Erica
  9. maths

    Can anyone help with te following please The total volume V(x)cm^3 of a container is given by V(x)= 4(x + ãx(8-x)) (

    asked by Claire
  10. Physics II

    A bead with a mass of 0.085 g and a charge of 20 nC is free to slide on a vertical rod. At the base of the rod is a fixed 20 nC charge. In equilibrium, at what height above the fixed charge does the bead rest?

    asked by Alona
  11. physics

    what potential difference is required to pass 3.0 A through 28 ohm's

    asked by pablo
  12. calculus

    If f(x) is differentiable at x=a where a is not equal to 0, Find lim [[f(x)]^2-[f(a)]^2] / [x^2-a^2] as x approaches a

    asked by amu
  13. math

    dale have decided to fence off the garden plot behind his house, using his house as a "fence" along one side of a garden, the lenght(which run parallel to the house)is e feet less than twice the width. Find the dimensions if 32feet of fencing is used along

    asked by ASnh
  14. Maths

    A music store offers a prize to a customer who can guess the closest, the number of jelly beans that fill a litre jar on the counter. estimate the number of jelly beans in the jar if 1 jelly bean is approximately 2cm (h) by 1.5 cm in diametre (d)

    asked by Riah
  15. Environmental engineering

    Lake Kickapoo, TX, is approximately 12 km in length by 2.5 km in width. The inflow for the month of April is 3.26 cubic meter per second, and the outflow is 2.93 cubic meter per second. The total monthly precipitation is 15.2 cm and the evaporation is 10.2

    asked by Jazmin
  16. Chemistry

    The temperature of 100.0g of water initially at 25.0 degrees C in a calorimeter increases to 30.0 degrees C after adding a 20.0g piece of hot aluminum. What was the temperature of the aluminum before adding it to water? The specific heat of water and

    asked by Jaclyn
  17. stats

    a die is rolled 10 times. find the chance of.... a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less? Please

    asked by karen
  18. phyics

    calculate the gravitational force between a student with mass (60kg) and her desk (5kg) if she is sitting .2m from her desk

    asked by clayton
  19. physics

    why is lead used as one of the metals in a thermocouple

    asked by vera
  20. calc

    I would greatly appreciate your help with a math equation needed for a science experiment I'm researching. The case is the following: there is a pit full of juice and a stream of water is flowing through the pit (so that the amount of water which enters

    asked by Joseph
  21. Science

    Diagram examples of a player dat drop a ball on d ground and bounce back to his hand

    asked by Samuel
  22. mth

    Add the rational expressions as indicated. Be sure to express your answer in simplest form. (8 x)/(x-3) + 7/(x-3)

    asked by latasha
  23. physics

    what is a current loop

    asked by vera
  24. phisic

    Consider an airplane that normally has an air speed of 120 km/h in a 105 km/h crosswind blowing from west to east. Calculate its ground velocity when its nose is pointed north in the crosswind?

    asked by macarena
  25. Math

    An experiment has probability p of success, q of failure and 1 - p - q of neither, If independent trials are repeated over and over until either success or failure is obtained, what is the probability of an ultimate success?

    asked by Brian
  26. Math

    If independent events have probabilities p and q, what are the odds of at least one of the events occurring?

    asked by Brian
  27. pythagoras theorem

    a ladder is leaning against a wall. it reaches 2.5cm up the wall and its foot is 1.2m from the base of the wall. how long is the ladder to one decimal point

    asked by Anonymous
  28. Maths

    a curve ahs parametric equations x=t^2 and y= 1-1/2t for t>0. i)find the co-ordinates of the point P where the curve cuts the x-axis which i found to be P(1/4, 0) the next part i cant do ii) find the gradient of the curve at this point. So far, I have the

    asked by Hannah
  29. science

    how much salt must I put into a 100mls of water to stop it freezing when left overnight in a home freezer

    asked by meg
  30. physics

    You stand on the seat of a chair and then hop off. During the time you are in flight down to the floor, the Earth is lurching up toward you with an acceleration a. If your mass is 52 kg, what is the value of a? Visualize the Earth as a perfectly solid

    asked by kia
  31. physics

    can i know what the important thing that i should know in chapter force?

    asked by alya
  32. english

    ideas plz on this question. "Imagine you are a 12 year old boy from Afghanistan who us newly arrived in Australia. Write a diary entry on your first day of school." sooner the help the better, just saying. :) thanks guys.

    asked by Al1ce
  33. algebra

    The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the

    asked by bianca
  34. Psychology

    Explain the relationship between learning and memory.

    asked by Tanya. B
  35. Algebra 1

    Larry has $2600 to invest and needs $3000 in 11 years. What annual rate of return will he need to get in order to accomplish his goal, if interest is compounded continuously?

    asked by Brad
  36. Algebra

    Find the accumulated value of an investment of $5000 at 5% compounded monthly for 8 years.

    asked by amber
  37. Math

    Factorize (x+2)^2 + x^2 +6x + 8

    asked by lala
  38. social studies

    i need a power point presentation on the disposal of the dead in the Indus valley civilization.

    asked by pranamya joshi
  39. Math

    Simlplify 1/(2x) - 3/(x+6)

    asked by lala
  40. physics

    Two satellites are in circular orbits around Jupiter. One, with orbital radius r, makes one revolution every 17 h. The other satellite has orbital radius 4.2r. How long does the second satellite take to make one revolution around Jupiter?

    asked by jimmyjonas
  41. physics

    2.A spy satellite is in circular orbit around Earth. It makes one revolution in 6.02 hours. (a) How high above Earth's surface is the satellite? (b) What is the satellite's acceleration?

    asked by jimmyjonas
  42. physics

    3.A roller coaster has a vertical loop with radius 27.1 m. With what minimum speed should the roller coaster car be moving at the top of the loop so that the passengers do not lose contact with the seats?

    asked by jimmyjonas
  43. physics

    4.A 30.8-kg child swings on a rope with a length of 6.29 m that is hanging from a tree. At the bottom of the swing, the child is moving at a speed of 4.2 m/s. What is the tension in the rope?

    asked by jimmyjonas
  44. physics

    5.A car approaches the top of a hill that is shaped like a vertical circle with a radius of 55.5 m. What is the fastest speed that the car can go over the hill without losing contact with the ground?

    asked by jimmyjonas
  45. physics

    6.A child pushes a merry go-round from rest to a final angular speed of 0.46 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.3 revolutions. What is the angular acceleration of the merry go-round?

    asked by jimmyjonas
  46. physics

    7.A turntable reaches an angular speed of 33.3 rpm, in 2.1 s, starting from rest. (a) Assuming the angular acceleration is constant, what is its magnitude? b How many revolutions does the turntable make during this time interval?

    asked by jimmyjonas
  47. physics

    7.If a washing machine's drum has a radius of 28 cm and spins at 4.1 rev/s, what is the strength of the artificial gravity to which the clothes are subjected? Express your answer as a multiple of g.

    asked by jimmyjonas
  48. Algebra

    Cody’s motorboat took 3 hr to make a trip downstream with a 6-mph current. The return trip against the same current took 5 hr. Find the speed of the boat in still water

    asked by Joel
  49. medical office

    what does it mean when you find a three digit code highlited in the tabular list

    asked by rachel
  50. Discrete Math

    Hi, I need help with interpreting a figure. You can find it one photobucket. First, type in flutegirl516 in the search bar and then click on the message that says: "Are you looking for the Photobucket user flutegirl516? Click here to see this user's

    asked by Francesca
  51. math

    Geometry. How do you find the area of a triangle with the base of 1 1/8 and a height of 2/3 inches?

    asked by Shiela
  52. physics

    A 1-kg rocket is fired straight up from level ground. The engine is able to provide a constant 15N of thrust for exactly 5 seconds after which it shuts of completely. Find the maximum height that the rocket achieves.

    asked by eugene
  53. please please i need more ideas in the answer

    write a single paragraph which answers this question, “Who is responsible for program planning, the academic advisor or the student? Explain why.”

    asked by Anon
  54. English

    What lesson do you think is important from the reading of "Hands"?

    asked by Matty F.
  55. Pysics

    the average speed of light slows to 0.75 when it refracts through a praticular piece of plastic. a. what change is there in the light's frequecny in the plastic? b. in its wavelength?

    asked by Sarah
  56. Medical office

    what does it mean when you find a three digit code highlited in the tabular list A, Poisoning B. Accident, C. Theraputic Use D. Undetermined

    asked by rachel
  57. Random Book Selection Questions

    What statement does the story (or stories) of Winesberg, Ohio make about life in the small towns of America?

    asked by Danny
  58. chemistry 11

    Calculate # of oxygen atoms in 3.15 moles of MgSO4

    asked by lo-bo
  59. Physics

    A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.

    asked by Breezerlea
  60. chemistry 11

    What mass of carbon is contained in 3.17 x 10 exp.24 formula units of iron(III)carbonate?

    asked by lo-bo
  61. Physical Science

    Suppose you made your own hydrometer. The lower part of a hydrometer has a volume of 7.0 g/cm3 and the upper part is 5.0 cm long and has a cross-sectional area of 0.62 cm2. What length of the upper part of the hydrometer will be submerged?

    asked by Dee
  62. algebra

    Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were

    asked by Joel
  63. C++

    Using C++ (if, char or Boolean) Write a program that asks the user for a two digit number and then prints the English word for that number. Sample run: Enter a two-digit number: 45 You entered the number forty-five. PLAN: Read the number entered as an

    asked by Sundayy
  64. Biology

    Darwin believed that Malthus' ideas about human populations applied more strongly to animals and plants. Why?

    asked by Ashley
  65. math

    One day a third of the class is absent and 16 children are present. How many children are in the class when no one is away?

    asked by Drake
  66. Chemistry

    When 1.O M solution of NaCl at 25 degrees C, is heated to 55 degrees C the: A) density increase and the molarity increases B) density increases and the molarity decreases C) density decreases and the molarity decreases

    asked by Courtney
  67. business

    What are some of the operations management practices that can help bring manufacturing back to the U.S?

    asked by Anonymous
  68. Biology

    What did Darwin believe is the consequence of overpopulation in animals and plants?

    asked by Ashley
  69. physics

    Speedometer readings are obtained and graphed below as a car comes to a stop along a straight-line path. How far does the car move between t = 0 and t = 14 s?

    asked by maya
  70. Chem

    22.8 kg of a metal has a density of 8.3g/mL. Calculate the volume of the metal sample?

    asked by jay
  71. social problems

    Tommy has watched his parents smoke crack cocaine and is considering joining a gang that deals crack in the neigborhood.He sees nothing wrong with using and dealing drugs unless he gets caught.Which one of the following sociological hteories best explains

    asked by vedrana
  72. math

    Okay so I feel like such a dork cuz I don't remember what this means (-3) so could someone please help me?? Thanks

    asked by gigi
  73. algebra

    Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + 10y = 41 x + 9y = 37

    asked by Joel
  74. algebra

    Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + 4y = -19.5 -3x + y = -10.5

    asked by Joel
  75. algebra

    Select the set of equations that represents the following situation: The cost of eleven CDs and twelve DVDs is $150.62; and the cost of one DVDs and twelve CDs is $116.07. How much do a CD and a DVD cost? (Points : 3) 11x + 12y = 150.62; 12x + 1y = 116.07

    asked by Joel
  76. algebra

    Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were

    asked by Joel
  77. algebra

    Select the set of equations that represents the following situation: Mary invested one amount at 7% simple interest, and a second amount at 5% interest, earning $29.80 in one year. If she had switched the amounts, she would have earned $35.00. What were

    asked by Joel
  78. algebra

    To buy both a new car and a new house, Tina sought two loans totalling $319,531. The simple interest rate on the first loan was 2.7%, while the simple interest rate on the second loan was 2.6%. At the end of the first year, Tina paid a combined interest

    asked by Joel
  79. algebra

    A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags of 4% and 3% saline solutions. How many liters of each of these solutions should be mixed together to yield 5 liters of the desired concentration?

    asked by Joel
  80. Organic Chem

    Is it possible to obtain pure (200- proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? why or why not?

    asked by Tina
  81. English

    I really need you to check my corrections. Thank you very much. 1) The town is described through the use (using, are both possible?)of similes taken from the animal world. 2) The black smoke coming out of the chimneys is compared to (not: is seen as) a

    asked by Mike
  82. algebra

    Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -x – 8y = 43 4x + 32y = 172

    asked by Joel
  83. algebra

    Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x – 5y = 1.5 -5x – 4y = 4.5

    asked by Joel
  84. Vocabulary- check my answer!

    What does the parenthesized word mean? Hoping to avoid being punished, the child *(groveled)* at the feet of his parents in the hopes that they would forgive his misbehavior. wished laughed praised begged.... is this right?

    asked by Lumi
  85. geography

    mention 5 charactheristics of a map

    asked by kofi
  86. Algebra

    Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x – 5y = 61 7x – 5y = -9

    asked by Betty
  87. College Physics

    Three weights are attached to the corners of an equilateral triangle (side length 10 cm) made from stiff but very light wire. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?

    asked by Sararh
  88. operation

    Briefly desribe the cookie production process

    asked by francis
  89. competitiveness,strategy,and productivity-operatio

    As a consumer,what things do you consider in judging the quality of cookies you buy in a supermarket

    asked by francis
  90. Economics

    What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our

    asked by Ann
  91. physics

    a .140 kg baseball is dropped from rest from a height of 2.2m above the ground. it rebounds to a height of 1.6 m. what change in the balls momentum occurs when the ball hits the ground?

    asked by vicki
  92. trig

    "Two points A and B on the circle x^2 + y^2 = 49 form a central angle of 30 degree with the radii draw to them. Find the length of the arc AB in term of pi?"

    asked by ervin
  93. Pre AP Chemistry

    If I have a 1200 gram sample of a soft drink and it contains 180 grams of sugar, the percentage by mass of the sugar in the drink is 15%. If the sugar in the drink is sucrose (C12H22O11), how many grams of pure carbon can be obtained from decomposing all

    asked by Lynn
  94. College Algebra

    Carl had packed 6 crates by 8 a.m. By 11 a.m., he had packed 24 crates. Find the average rate of change in crates packed from 8 a.m. to 11 a.m.

    asked by Joyce
  95. physics

    a .330 kg volleyball is dropped from rest. it takes it 1.30 s to reach the ground. what is the magnitude of its momentum just before it hits the ground

    asked by vicki
  96. Physics

    A stone is thrown from a 50m high cliff and lands 5 seconds later, 40m from the base of the cliff. At what speed and angle was the stone thrown?

    asked by Jessica
  97. Spanish-8th grade-Totally confused

    Could someone please help me-I'm totally confused on this. I have to say that the person has his/her/their own book or books in the following sentences 1.Yo tengo libro. 2.Ella tiene libros 3.Ellos tienen libro 4.Nosotros tenemos libro For 1, would I put

    asked by BethAnne
  98. Spanish-Please check my answer

    This is true or false A possessive adjective is a descriptive word that tells whose something is I think this is false because the possessive adjective describes the noun and not the person who has possession of the item.

    asked by BethAnne
  99. corporate finance

    Toyota Motor Credit Corporation (TMCC), a subsidiary of Toyota Motor, offered some securities for sale to the public on March 28, 2008. Under the terms of the deal, TMCC promised to repay the owner of one of these securities $100,000 on March 28, 2038, but

    asked by Lizi
  100. Algebra

    If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What

    asked by Maggie
  101. english

    in the story "snow" through the story's first-person narration, the reader comes to understand

    asked by cody
  102. chemistry

    Write the major products with the correct regiochemistry and stereochemistry for 1- ethylcyclohexene and the following reagents: a) NBS, H2O, DMSO if someone could atleast direct me to a site or anything that would be great.

    asked by ben
  103. Algebra 2

    If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What

    asked by Maggie
  104. math

    parallel to y 2x+2 and passes through the point (2),(3)

    asked by cody
  105. Calculus

    The position of a particle moving along the x-axis is given by s(t)=2t2+4. Use difference quotients to find the velocity v(t) and acceleration a(t), filling in the following expressions as you do so: v(t)=limh->0 [_____ / h ] = ____ a(t)=limh->0 [ ____ / h

    asked by Cecille
  106. social studies

    The task of economic policy is to create a prosperous America. The unfinished task of prosperous Americans is to build a Great Society. Our accomplishments have been many; these tasks remain unfinished: > to achieve full employment without inflation; > to

    asked by jamaal
  107. Physics

    The space between two points

    asked by kb
  108. physics

    trying to win the superbowl, a placekicker attempts a field goal from 45 m away. when kicked, the ball leaves the ground with a speed of 22m/s at an angle of 50 degrees above the horizontal. what can you say about the ball when it reaches the crossbar that

    asked by charlie
  109. physics

    What is the potential energy of an object that has a mass of 5 kg and is on a shelft that is 2 m high

    asked by Chell.bell
  110. social problems

    Dr.Rivera and Dr. Harris want to conduct research to determine whether training prisoners in computer skills during incarceration will reduce recidivism.The researchers plan to compare a group of prisoners who received the training with a group that did

    asked by vedrana
  111. arithmetic

    (e²-2e+7)-(e²+2e+7)

    asked by please help me its urgent
  112. physics

    At a certain time, a 55-kg person is 25 m due north of you and is walking at a speed of 1.2 m/s exactly southwest. What are the magnitude and direction of this person’s angular momentum about you?

    asked by Jordan
  113. physics

    Two balls having different masses reach the same height when shot into the air from the ground. If there is no air drag, which of the following statements must be true? (More than one statement may be true.) A. Both balls left the ground with the same

    asked by andrea
  114. physics

    A 1.00 g grasshopper and a 0.100 g cricket leap vertically into the air with the same initial speed in the absence of air drag. Which of the following statements must be true? (More than one statement may be true.) A. The grasshopper goes 10 times as high

    asked by andrea
  115. Physics

    A spy satellite is in circular orbit around Earth. It makes one revolution in 6.00 hours. (a) How high above Earth's surface is the satellite? [Answer in Km] (b) What is the satellite's acceleration? [Answer in m/s^2] Please provide a step by step

    asked by MB
  116. english

    what could i right for the title you can't help everyone in trouble people really have to sort out their own problems thankyou as soon as possible

    asked by chloe mcp
  117. physics

    A billiard ball rolling across a table to the right at 2.2 m/s makes a head-on elastic collision with an identical ball. The mass of a billiard ball is 32 g. If the second ball is initially at rest, what is the velocity of the first ball after the

    asked by micha
  118. physics

    A 15.0 kg stone and a 150 kg stone are released from rest at the same height above the ground. There is no appreciable air drag. Which of the following statements is or are true? (More than one statement may be true.) A. Both stones have the same initial

    asked by andrea
  119. Physics

    Displacement vector [3, 0 , -2] and [-1,5,2]displacement vector , both measured in meters. Find the components of the cross product of these vectors.

    asked by Jordan
  120. physics

    Which of the following statements about work is or are true? (More than one statement may be true.) A. Negative net work done on an object always reduces the object's kinetic energy. B. If the work done on an object by a force is zero, then either the

    asked by andrea
  121. physics

    A railroad car of mass 26500 kg is released from rest in a railway switchyard and rolls to the bottom of a slope Hi =8 m below its original height. At the low point, it collides with and sticks to another car of mass 20000 kg. The two cars roll together up

    asked by micha
  122. Spanish-Please check my work-Thanks

    Could someone check-I had to correctly conjugate the verbs. Mis hermanos prefieren un pastel de chocolate. Mi padre prefiere una corbata azul. Mis amigos quieren una fiesta. Yo quiero muchos regalos. Nosotros queremos una fiesta. Ellos quieren bailar.

    asked by Ray Scholz
  123. physics

    Consider two frictionless inclined planes with the same vertical height. Plane 1 makes an angle of 25.0 degree with the horizontal, and plane 2 makes an angle of 55.0 degree with the horizontal. Mass m_1 is placed at the top of plane 1, and mass m_2 is

    asked by andrea
  124. Physics

    A 6-kg bowling ball with a radius of 14 cm is spinning about a vertical axis (with its center of mass motionless) at an initial rate of 3 turns per second. Friction with the floor, however, causes the bowling ball to rotate more and more slowly until it

    asked by Jordan
  125. English

    Can you please tell me if the corrections in my previous post were all OK? I have a few more doubts. 1) In order to describe Coketown Dickens uses two similes. 2) Through these similes he conveys the image of a towm like (which looks like) a jungle. 3)

    asked by Mike
  126. physics

    A block slides a distance d down a frictionless plane and then comes to a stop after sliding a distance s across a rough horizontal plane. What fraction of the distance s does the block slide before its speed is reduced to one-third of the maximum speed it

    asked by andrea
  127. physics

    One of the tenets of the pseudoscience (i.e., "false science") of astrology is that, in some mysterious way, the positions of the planets at the time of a person's birth somehow influence the characteristics of that person. To see if this proposition seems

    asked by andrea
  128. Physics/ electricity

    Consider a square of side length a = 9.7 cm with charged particles at each of the corners. Three of the particles carry +9.3 nC of charge while the fourth particle carries -9.3 nC. In volts, what is the electric potential at the center of the square? Hint:

    asked by Me
  129. APphysicsB

    If wind blows at 26 m/s over a house, what is the net force on the roof if its area is 241 m2 and is flat?

    asked by moody
  130. Physics

    Two objects attract each other gravitionally with a force of 2.5 *10^-10 N when they are .25m apart. Their total mass is 4.0kg. Find their individual masses.

    asked by Emily Grossman
  131. Physics

    If a curve with a radius of 88m is perfectly banked for a car traveling 75km/h, what must be the coefficient of static friction for a car not skid when traveling at 95 km/h?

    asked by Emily Grossman
  132. Under Franklin Roosevelt's Good Neighbor policy,

    Under Franklin Roosevelt's Good Neighbor policy, A. the collective security among the nations of the Western Hemisphere declined. B. American commerce with Latin America increased, but only slightly. C. the Platt Amendment was rescinded. D. Cordell Hull

    asked by Anonymous
  133. physics

    A mass is attached to a string and then dropped. What is its velocity after 5 sec?

    asked by quana
  134. English

    Is there euphony, cacophony, onomatopoeia in the poem Phenomenal Woman by Maya Angelou? Examples are needed.

    asked by Andrea
  135. Math

    You would like to invest in $12,000 in two different bonds. Some of the amount will be invested in treasury bonds at 10% annual interest and the rest in municipal bonds at 15%. What amount should be invested in each type of bond rate if the annual yield

    asked by Jaison
  136. government

    Students are to read up on the role of Hezbollah as a political force in Lebanon. Due to Lebanon's geographical position, economy, and politics, would an Egyptian style revolution beneficial or detrimental to the US government? Acting as the president's

    asked by Jake
  137. math

    f(x)=3x

    asked by katy
  138. Physics

    Could a rubber band be used to replace the spring in a Hooke's Law experiment? Why/ why not?

    asked by Anonymous
  139. Math

    If a bicycle has a crankshaft of 40 teeth, and there are three rear sprockets attached to the rear wheel, 20 teeth, 16 teeth and 12 teeth. The diameter of the rear wheel is 60 cm. Which sprocket should be used to get the most distance in one paddle? What

    asked by Anonymous
  140. physics

    A rock is thrown upward at an angle of 50 degrees with respect to the horizon. As it rises, its vertical component of velocity does what?

    asked by Tamara
  141. Algebra

    If i take 5000 calls at 78% service level, how many calls would I need to take at 100% to equal an overall service level of 80% Please post formula

    asked by JD
  142. physics

    determine the speed of a mass (1.00kg) after it has fallen a vertical distance of 12.5 meters

    asked by alex
  143. Math

    How do you solve 5x - 2 plus 3 over x - 8?

    asked by Anonymous
  144. Chemistry

    Decide whether each of the following is water-soluble. If soluble tell what ions are produced. A. Na2CO3 B. CuSO4 C.NiS D.BaBr2 I put soluble for A, B, and D. But i can not figure out the ions that are produced??

    asked by Danielle
  145. english

    change to reported speech speaker a: eih she is coming! speaker s:who? speaker a: that woman speaker a:I really don't think she likes me. she gave me very low marks in the examination. I know I had the Best scores judging from the others.

    asked by sharon
  146. chemistry

    Describe how to make 20 mL of a 6.0 % solution from a stock solution with a concentration of 10 %.

    asked by amber
  147. Math

    A company has factories located in New Jersey, Ohio, and Georgia where it manufactures handbags, shoes, and belts. How many days should the company operate each factory in order to exactly fill the order of 2150 handbags, 2300 shoes and 2500 belts? Use the

    asked by Dean
  148. physics

    a 2 kg rabbit starts from rest and is moving at 6 m/s after 3 seconds. What force must the rabbit cause to makes this change in speed?

    asked by becky
  149. Math

    Solve the system of equation. x+y+z=6 3x-2y=4z=9 x-y-z=0 ________

    asked by Pete
  150. Science

    How can you use technology in your elementary science instruction to help children in their inquiries?

    asked by Anonymous
  151. physics

    A hammer falls from a scaffold on a building 50.0m above the ground. Find its speed as it hits the ground.

    asked by stacey
  152. math

    3y^2=y+10

    asked by RNRH
  153. Algebra 2

    Total revenue is the total amount of money taken in by a busniss. An appliance firm determines that when it sells x washings machines, the total revenue R in dollars is given by the polynomial R= 238.39x-0.5x^2. What is the total revenue from the salse of

    asked by Esther
  154. Equations and Inequalities

    25z^2=-10z

    asked by RNRH
  155. Economics

    What is the common element in each column? Column A: The number of minimum wage jobs has increased. By 2025 blue collar work could be totally obsolete. The number of ATM’s is increasing faster than the rate of bank tellers. “We’re sorry all our

    asked by Ann
  156. physics

    a bullet shot at 500 m/s into a block of wood of mass 0.49kg and becomes in-bedded in it. if it gives the block a speed of 11 m/s, find the mass of the bullet.

    asked by josh anderson
  157. Science

    the water and waste materials we washed down toilets and sinks are called: A. pesticides B. sewage C. industrial chemicals D. fertilizer

    asked by Tina
  158. chemistry

    Calculate the percent mass of a solution made by dissolving 25.2 of KBr into .250 liters of water.

    asked by yoda
  159. geometry

    what does 44 feet by 9 feet by 8 feet mean

    asked by bob
  160. COLLEGE ALGEBRA

    Suppose that R is the set of real numbers. Let f: R--> R be defined by f(x)= mx+b, where m and b are real numbers and m is nonzero. Prove that f is a bijection.

    asked by Molly
  161. math

    Tierra, Nico, and Alex had $865 altogether. Tierra spent 2/5 of her money. Nico spent $40,and Alex spent twice as much as Tierra. If the three had the same amount of money left, how much money did alex have in the begging?

    asked by kaykay
  162. math

    the gas tank in bob's car holds at most 15 gallons. He has already filled the tank with 7 gallons of gas. he will continue to fill the tank with g gallons more. Write and solve an inequality that shows all the values of g that bob can add to the cars tank.

    asked by Jay
  163. math

    the rope James bought with his camping gear is 54 inches long. james needs to cut shorter pieces of rope that are 18 inches long. what are the possible number of pieces james can cut?

    asked by Jay
  164. math

    Find the cost of 60 tonnes of cocoa at 25 per 100-kg sack

    asked by Praise
  165. Spanish-Please check and clarify

    Could someone recheck this-I don't understand the two follow up answers because they seem to contradict each other-Maybe its the question or wording I'm confused about but I still don't understand if this is true or false. I thought it was false.I'm sorry

    asked by BethAnne
  166. math

    dante has at most $12 to spend on entertainment each week. so far this week, he spent $7.50. Write and solve an inequality to determine how much money dante can spend on entertainment the rest of the week.

    asked by Jay
  167. math

    dante has at most $12 to spend on entertainment each week. so far this week, he spent $7.50. Write and solve an inequality to determine how much money dante can spend on entertainment the rest of the week.

    asked by Jay
  168. Chem

    I'm confused with Determining the concentration of a soution: beer's law lab. 1.Explain why pure water is set for a transmittance of 100%. - I believe the pure water is set for a transmittance of 100% in order to for a tranmission relative to water 2.

    asked by Unknown
  169. math

    tom saved $550 to go on a school trip. the cost for a hotel room, including tax, is $80 per night. write and inequality to show the number of nights tom can stay at the hotel.

    asked by Jay
  170. Abstract Algebra

    Let A= -{-1}, that is, the set of all real numbers except -1. Define an operation on A by a*b=a+b+ab (usual addition and multiplication in R) a) Show that * is closed on A b) show that * is associative c) Find the identity element for * and verify that it

    asked by Molly
  171. Calc

    find the slope of the tangent to the curve: y^2=x^3/xy

    asked by Sophie
  172. math

    The product of a number and 7 in not less than 21.

    asked by Jay
  173. math

    The quotient of h and -6 is at least 5.

    asked by Jay
  174. Algebra

    -3x + 2y = 8 x + 4y = -4 use substitution method to solve the linear system.

    asked by Bun
  175. math

    A cylindrical tank is lying horizontally on the ground, its diameter is 16 feet, its length is 25 feet, the depth of the water in the tank is 5 feet. How many gallons of water are in the tank? How many more gallons of water will it take to fill in the

    asked by Anonymous
  176. Physics

    A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0m, as shown in figure. If it's sped is 4.00 m/s and its mass is .300kg. Calculate the tension in the string when the ball is a). at the top of its path and b).

    asked by Emily Grossman
  177. English

    1. We were the (fastest, most fastest) swimmers on the team. 1.fastest

    asked by Hayden
  178. eng 10 h

    How would you define Emerson's idea of "mean egotism"?

    asked by ridha
  179. english

    LANG-415.Mine exploded.Determine whether the sentence is ambigious or vague and explain the ambiguity or vagueness as appropriate.

    asked by Nura
  180. chem

    how do i figure this out?? How much heat does your body lose when 2.46 g of sweat evaporates from your skin at 25°C?

    asked by Rebekah
  181. social problems

    Rashida is an accountant, a wife,and mother of two young children.Which one of the following statements is likely to be true regarding her labor force participation? A)She is likely to be working for extra pocket money B)She is unlikely to remain in the

    asked by vedrana
  182. Chemistry - help needed

    In titrations involving sodium thiosulphate and potassium iodide, is it necessary to use starch solution to help us see the end point? If the colour change from yellow to colourless is easily visible, is it acceptable not to use the starch solution?

    asked by janice
  183. Chemistry II

    At a certain temperature, Kc = 33 for the reaction: H2(g) + I2(g) 2HI(g) Assume that the initial concentrations of both H2 and I2 are 6.00 x 10-3 mol/L. Find the concentration of each reactant and product at equilibrium.

    asked by Tiffany
  184. Calculus

    What does the arc length formula give for the length of the line r(t)= for 0 ≤ t ≤ 1?

    asked by Z32
  185. English 12

    The story Early Inklings but John updik How does the last line reinforce the meaning of the pun? Last line contains This was my element, ink on paper.

    asked by Shayla
  186. social studies

    Do you think many people live on the Kamchatka Peninsula? Why or Why not

    asked by tony
  187. social studies

    what happened as a result of the removal of the priest

    asked by abraham
  188. statistics: dependent event

    A psychology class is comprised of 4 female and 6 male students. If the instructor of the class randomly chooses 6 students from the class for an oral exam, what is the probability that 2 female students and 4 male students will be selected? Round your

    asked by John
  189. algebra

    Find the slope of the line determined by each relation. (time in hours, distance traveled at 50mi/h)

    asked by Kayli
  190. Chem

    Find the degree ionization of .75 M HF

    asked by Skibba
  191. Math

    What does I=prt mean in 7th grade verison?

    asked by Rebecca Broda
  192. math

    explain how populationand money earning interest can both be represnted by the fomula A= 1000(1.08)^t

    asked by Darcy
  193. Multicultural Psychology

    why do people tend to ignore the importance of Multicultural Psychology ?

    asked by Linda
  194. social studies

    Do you think many people live on the Kamchatka Peninsula ? Why or why not? My answer is no because there are 160 volcanoes and 29 are active.

    asked by tony
  195. 4th grade math

    Two rectangles are each 5 in. wide. The larger rectangle has an area of 35 sq in . and is 2 in longer than the smaller rectangle. What is the area of the smaller rectangle?

    asked by Amy
  196. Math

    So my teacher is making me solve systems by graphing. One of them was 3x + y = 6 and 2x + 3y = 13 . I converted both of them into slope intercept form and got y = -3x + 6 and y = -2/3x + 13/3 . The thing is I don't know how to graph a fraction ?!?!?! And

    asked by Melanie
  197. math

    Robert feeds his dog 1lb.4oz ofdog food a day. How long will a 40 pound bag last? Please show steps

    asked by beverly
  198. english ap

    In the book The Crucible, I have a question- when Parris tells the Judge that you cannot hang this sort, what did he mean

    asked by kelli
  199. science

    can i get the full answer to : determine your distance traveled and displacement if you walk 100 m forward and then 35 m back ? answer son as possible please and thank you !!

    asked by destiny
  200. STATS

    Samples of both surface soil and subsoil were taken from eight randomly selected farms in a county. The soil samples were analyzed to determine both surface pH and subsoil pH, which yielded the following results: Farm 1 2 3 4 Surface pH: 6.55 5.98 5.59

    asked by Rina
  201. Algebra II

    We are learning how to solve systems using elimination. 2y - 1 = 3x - y / 5 3x - 4 / 8 = y/4 How would I begin to solve this? I'm mostly unsure of how to simplify the fractions. Thanks so much :)

    asked by Lindsey
  202. math

    solve problem 8 __ 72 __ 2 __

    asked by renee
  203. math

    Explain how you can break apart 3times 9 to help you multiply.

    asked by Joe
  204. math

    a survvey of vegetable gardeners showed the following: 69 grew tomatoes 25 grew cucumbers 30 grew zucchini 18 grew both tomatoes and cucumbers 21 grew both tomatoes and zucchini 14 grew both cucumber and zucchini 12 grew all 3 12 had none of these 1. how

    asked by Shan
  205. math

    Explain how you can break apart 3x9 to help you multiply.

    asked by Joe
  206. English

    What does an I.O. do in a sentence? I.O. means indirect object.

    asked by Izabella
  207. math

    in a survey of 260 dancers: 172 knew the ballroom dances 145 knew latin dances 102 knew swing dances of these, 65 knew the ballroom and swing dances. 93 knew ballroom and latin dances 56 knew latin and swing dances 31 dancers indicated they knew all 3

    asked by Shan
  208. chem

    ) Which of the following should dissolve the smallest amount of silver sulfide per liter, assuming no complex formation? A) 0.1 M HNO3 B) 0.1 M Na2S C) 0.1 M AgNO3 D) 0.10 M NaNO3 E) pure water

    asked by sana
  209. Science

    Steve finds the mass and volume of three different objects. With only this information and a little math, what can he also know about the objects?

    asked by Nicole
  210. math

    When you subtract 2 from a number, double the difference, and then add 7, you get 57. What is the number?

    asked by miah
  211. Chemistry

    How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?

    asked by Danielle
  212. Chemistry

    we have 159ml of CO2 at 38.9 C and 92.4 kPa. if the conditions change to 64.9 C and 174 kPa, what is the volume of the gas?

    asked by Nicole
  213. Chemistry

    we have 159ml of CO2 at 38.9 C and 92.4 kPa. if the conditions change to 64.9 C and 174 kPa, what is the volume of the gas?

    asked by Nicole
  214. algebra 2

    I have a question about two problems that I am trying to solve for my h.s. trig. class. The first one I believe is correct. the other i am lost. D(p)= 2000-60p S(p)=460+94p p is the price in dollars a) find those values of p for which demand exceeds supply

    asked by Monica
  215. chemistry

    How many grams of sodium hydroxide are required to prepare 500 mL of 0.500 M NaOH?

    asked by Maddy
  216. Physics-Please help

    Could someone provide me with a simple explanation of how the Doppler Effect is used to determine the speed and direction of moving object

    asked by Julia
  217. writing

    What is the easiest format for a research paper

    asked by celine
  218. chemistry

    Calculate the volkume of 0.750 M KNO3 that contains 17.0 grams of KNO3?

    asked by Maddy
  219. chemistry

    What is the concentration of HCl in a 250.0 mL sample of hydrochloric acid if 15.5 mL of 0.0100 M NaOH is needed to react with all the HCl?

    asked by Maddy
  220. Chemistry

    How many ml of 1M HCl would you need to make 50.0 mL of 0.125M solution?

    asked by Danielle
  221. Chemistry

    Describe, in detail, how to make 5.5 liters of a 2.5 molar HCl solution from a 10.5 molar HCl stock solution.

    asked by Kristen
  222. chemistry

    What volume of 0.406 M KOH is required to completely react with 18.50 mL of 0.287 M H2SO4?

    asked by Maddy
  223. Spanish

    I am working on a short essay and lack confidence in my use of tenses in some sentences. Hopefully someone can check that these are okay or help/suggest how to fix them: 1. Sus colegios estarán aquí despues de ella se haya ido. (Her colleagues will be

    asked by Jacqueline
  224. Stoichiometry

    1. Iron reacts with oxygen according to the following equation: Fe + O2→ Fe2O3 a. Balance the equation. b. Assuming you start with 15.0 g of iron, how many dm3 of oxygen are required to react? c. How many molecules of oxygen is this?

    asked by Ashley
  225. Calculus Please Help

    A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following

    asked by Cecille
  226. Science

    How can you use technology in your elementary science instruction to help children in their inquiries? Name three children's literature stories. How can they help to support science concepts?

    asked by Anonymous
  227. grade 5 mathematics

    if 15 muskrat pelts has the same value as one beaver pelt how many muskrat pelts have the same value as 25 beaver pelts. please help.

    asked by greyowl jr.p school
  228. math

    what is the reduced fraction of 3 28/36

    asked by meli
  229. science

    a car is stopped at a traffic light, which then turns green. The car speeds up for 85 seconds and travels a distance of 1.5 miles. what is the car's acceleration from the traffic light?

    asked by Anonymous
  230. organic chemistry

    what volume of nitrogen gas is produced at 1.00 atm and 27C when 101 g of NaN3 decomposes

    asked by Cathleen
  231. Math

    solve each system 1) 3x + y = 6 2x + 3y = 13 2) 2x + 5y - 6 = 0 -2x + y - 2 = 0 3) x + 3y = 6 4x - 5y = 7

    asked by Melanie
  232. science

    how do elements in the same family usually react

    asked by angiie
  233. Psychology

    "I just can't make myself study ahead for a test. I work better under pressure. Perhaps it is the fear associated with waiting until the last minute that gets me going." This approach to motivation is best explained by: (Points: 5) incentive approaches.

    asked by Lisa
  234. Calc

    I have to find the integral of 1/(sq. rt. of (4x-x²)) dx. I know I have to complete the square of the denominator, but im confused on how that process works when im only given 4x-x². Could you demonstrate how to complete the square for that equation?

    asked by Erica
  235. Math

    I am having ahard time solving this problem and am not good with story problems, could someone please help. Can you show how you would write out problem. The average price of an acre of U.S farmland was $1132 in 2001. In 2006, the price of an arce rose to

    asked by Cindy
  236. 4th grade math

    Students are standing in a circle evenly spaced and numbered in order. The 3rd student is directtly opposite the 7th. How many students are in the circle?

    asked by Rusty
  237. English

    Can you please check these sentences I'm doubtful about? Thank you. 1)Can you dress the Christmas tree with festoons? 2) hall we go to the cinema? I'd rather stay at home./I'd prefer to stay at home. 3)I'd like (a?) grilled chicken breast, (a) home-baked

    asked by Franco
  238. Language Arts

    What change should be made to the following sentence?: That song is The Star Spangled Banner, and Francis Scott Key wrote it.

    asked by HelpMePlease
  239. Algebra

    what is the greatest common monomial factor of 6x^2y^3z^4-4x^3y^3z^3+10xy^3z^4

    asked by Zachary
  240. Solving a system of linear Equations using Substit

    Suppose a school club publishes a newslettter. Expenses are 90 cents for mailing and printing each copy, plus 600 total for research and writing. The price of the neewsletter is a 1.50 per copy. How many copies of the newletter must the club sell in order

    asked by Tonnie
  241. world history

    what was the name of the french fort attacked by the spanish

    asked by jazmine
  242. math

    did perimeter and area of rectangles change in the same way it does for squares explain your thinking

    asked by chance
  243. Chemistry

    how many milliliters of 0.0850 m naoh are required to titrate 50.0 ml of a solution that contains 1.85 g of hcl per liter to the equivalence point?

    asked by Charles Maxey
  244. Calculus Please Help

    A continuous function f, defined for all x, has the following properties: 1. f is increasing 2. f is concave down 3. f(13)=3 4. f'(13)=1/4 Sketch a possible graph for f, and use it to answer the following questions about f. A. For each of the following

    asked by Cecille
  245. AP human Geo

    what is an example of agglomeration?

    asked by Anonymous
  246. AP human Geo

    What is an example of barriadas?

    asked by Anonymous
  247. math

    consider pairs of rectangles where the dimensions are doubled (rectangles with all sides X2 and all sides X4, or those with all sides X3 and all sides X6. what happens to the perimeter when you double each of the dimensions of a rectangle?, Then what

    asked by chance
  248. AP human Geo

    What is an example of the Bid-rent theory?

    asked by Anonymous
  249. chemistry

    If you weighed 5.0 grams of PLA, how many moles of LA monomer residues do you have?

    asked by meg
  250. math

    Mrs. Rossi wrote the following clues for a mystery number. It is a 4-digit number. The tens are double the ones. The thousands are double the tens. The sum of the digits is 19.

    asked by rita
  251. social problems

    The Moral Majority and the Christian Coalition are example of :a)interest groups b)lobbysts c)the power elite d)patronage Is A correct answer?THANK YOU:))))

    asked by vedrana
  252. Algebra 2

    for the polynomial complete the following table, -7x^4+8x^3-8x^2+3x-4. Degree of the term, Coefficient, Degree of the term, Degree of the Polynomial. Thank you.

    asked by Esther
  253. chemistry

    What is the molar mass of one LA monomer?

    asked by meg
  254. chemistry

    If you wanted to hydrolyze 1 mole of PLA into 1 mole of sodium lactic acid, how many moles of sodium hydroxide would you need?

    asked by meg
  255. Principles of Management

    Answer questions 1 through 3 based on the following fact: Wal-Mart sometimes forced its employees to work over time without pay. 1. Which stakeholder of Wal-Mart is the fact mainly about? a. Customers. B. Employees. c. Suppliers. D. Governments. 2. What

    asked by Alma
  256. Physics

    The work required to stretch a certain spring from an elongation of 4.73 cm to an elongation of 5.73 cm is 31.7 J. (a) Is the work required to increase the elongation of the spring from 5.73 cm to 6.73 cm greater than, less than, or equal to 31.7 J? (b)

    asked by Lauren
  257. math

    what is another mesuarment for 1 quart?

    asked by we
  258. Physics

    A moving object has a kinetic energy of 138 J and a momentum of 23.9 kg·m/s. a) Find the speed of the object. Answer in units of m/s.

    asked by Maria
  259. chemisty

    I'm totally confused about this question....I don't know what kind of an answer the teacher is looking for. The worksheet has the header "Preparation of solutions for Beer's Law Lab." That said....here's the question: Describe the preparation of 250.0mL of

    asked by desiree
  260. geometry

    Angle GHJ and Angle IHJ

    asked by matthew
  261. physics

    A 2.32 kg book is dropped from a height of +3.7 m. a.) What is its acceleration? b.) What is its weight in newtons?

    asked by Becky
  262. math

    a box contains 4 white,6 red, and 8blue marbles.what is the probability,expressed as a common fration,that one marble,drawn at random,will be red?

    asked by Anonymous
  263. algebra 2

    The yearly Egyptian production of oil O(t) in millions of barrels, t years after 2000 can be approximated by, O(t)=-40.4t +2159 Using inequality, determine the years for which the production will drop below 1750 million barrels. This is what I have and

    asked by Monica
  264. chemistry

    Suppose you wanted to dissolve 40.0 g of NaOH in enough H20 to make 6.00 L of solution and what is the molarity of the solution?

    asked by Servando
  265. CRIMINOLOGY

    What are some examples of non-monetary restitution?

    asked by Carly
  266. math

    a container has volume 1m cubed the lenght of the container is 200cm. list all the possible dimensions of the container. each dimension is whole number of cm.

    asked by erick
  267. Chem

    In acidic solution MnO4- oxidizes H3AsO3, a weak acid, to H3AsO4, a weak acid, and is reduced to Mn2+. Write the balanced net ionic equation for this reaction. How many H+ are there in the balanced equation? Question 8 answers

    asked by EJ
  268. physics

    Four forces act on a hot-air balloon, F_1 is upward at 4600 N, F_2 is left at 1450 N, F_3 is right at 850 N, and F_4 is downward at 3600 N. ____ N at _____ degrees clockwise from F_2.

    asked by Becky
  269. physics

    A sound wave traveling at 342 m/s is emitted by the foghorn of a tugboat. An echo is heard 2.50 s later. How far away is the reflecting object? Answer in units of m.

    asked by Maria
  270. Math

    prime and composite arrays are hard .Help please .

    asked by Casey
  271. science

    what is the solubility of alum in 100 ml of water at 20 degrees celcius?

    asked by Anonymous
  272. math

    why does a direct variation graph have to go through the origin?

    asked by Anonymous
  273. test prep math

    i= p=1250 r=9.8% t=6 years

    asked by ladybug
  274. PRE-ALGEBRA

    2V/5+V/4

    asked by KATIE
  275. Math

    Regina worked in the garden, she spent 1/4 hour planting beans, 3 3/4 minutes staking tomato plants, and 1/2 hour training the cucumber vines. How much time did she spend gardening? Explain your answer.

    asked by Emily
  276. algebra

    Find the volume of a cube whose side measures four x to the seventh power.

    asked by Meagan
  277. math

    use the quotient rule to find derivative. y= 3x^2+8 / x^2+3 (x^2+3)(6x) - (3x^2+8)(2x) all over (x^2+3)^2 The answer is 2x/(x^2+3)^2 The only problem is I am not sure how they simplified this to get the answer.

    asked by Hannah
  278. Physics

    I can't figure this question out. If there are three weights attached to the corners of an equilateral triangle with side length 10 cm Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3

    asked by Paul
  279. Math

    Space C has a base of 20 feet and a height of 24 feet and the two sides are both 26 feet (it is a parrallogram).... Space c will be tiled and used for an eating area. Each tile measures 1 square foot and cost $2. How much will it cost to tile the floor?

    asked by Leah
  280. Calc

    find the slope of the tangent to the curve: y^2=x^3/xy

    asked by Lisa
  281. Language

    How many words can I list that are related to the base word friend?

    asked by Famous 5
  282. physics

    In the movie Superman, Lois Lane falls from a building and is caught by the diving superhero. Assuming that Lois, with a mass of 45 kg, is falling at a terminal velocity of 59 m/s, how much force does Superman exert on her if it takes 0.4 s to slow her to

    asked by Anonymous
  283. physics

    In the movie Superman, Lois Lane falls from a building and is caught by the diving superhero. Assuming that Lois, with a mass of 45 kg, is falling at a terminal velocity of 59 m/s, how much force does Superman exert on her if it takes 0.4 s to slow her to

    asked by Anonymous
  284. Algebra 2

    How do I solve polynomial equation by finding all complex roots? The problem is: factor each expression and find all complex roots of x^3+64 I got as far as x^3+64=(x+4)(x^2-4x+16) Now how do i find the roots of (x+4) and the roots of (x^2-4x+16) Thanks

    asked by Jessica
  285. Personal finance

    What amount would you have if you deposited $2,500.00 a year for 30 years at 8 percent (compounded annually)?

    asked by Amanda
  286. Spanish

    1. Vamos ____ para comprar comestibles. a. a la tienda de regalos b. al almacén c. a la cocina d. al supermercado D? 2. Para _____ una tarjeta postal, necesito poner _______. a. sacar / un sello b. poner / mi nombre c. enviar / un sello d. llevar / algo

    asked by mysterychicken
  287. Physics Class

    I don't understand this question. Three weights are attached to the corners of an equilateral triangle with a side length 10 cm. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?

    asked by Ann
  288. Math

    What is 161.7728 rounded to the nearest tenth?

    asked by TayTay
  289. chemistry

    Calculate the concentration of oxalate ion (C2O42−) in a 0.175 M solution of oxalic acid (C2H2O4). [For oxalic acid, Ka1 = 6.5 × 10−2, Ka2 = 6.1 × 10-5.]

    asked by sarah
  290. Science / ELA

    Can you see if this essay below needs some corrections that may need to be fixed: Rocks go through the rock cycle; each type of rock can be changed into any other type of Rocks. Rocks are continuously formed; soon later the rocks start to erode and then

    asked by Anono.
  291. Chemistry

    Some solid copper(II) sulfate is dissolved in sufficient water to make 100.0 mL of solution. Enough of a sodium hydroxide solution of concentration 0.1500 mol/L is added just to react with all of the first solution, with none left over. This turns out to

    asked by OLGA
  292. Physics

    A block rides on a piston that is moving vertically with simple harmonic motion. (a) If the SHM has period 3.1 s, at what amplitude of motion will the block and piston separate? (b) If the piston has an amplitude of 9.6 cm, what is the maximum frequency

    asked by Jake
  293. 6th grade science

    What are Newton's three laws on motion in sixth grade lingo?

    asked by Marsha
  294. Math

    multiplying by 1 to find an expression equivilent to 12over19 with a denominator of 133d

    asked by Donna
  295. physics

    A system of pulleys is used to lift an elevator carrying a 3,300 newton load. assuming the pulley system is friction free, approximately how far would 10,000 joules of energy lift the elevator?

    asked by tania
  296. Chemisrty

    What is the pH of a 0.20 M solution of NH4Cl? [Kb(NH3) = 1.8 × 10−5]

    asked by Peter
  297. History

    would an Egyptian style revolution beneficial or detrimental to the US government?

    asked by Matthew
  298. math

    Find the expected value of a $1 bet in six-spot keno if three winning spots pays $1 (but you pay $1 to play, so you actually break even), four winning spots pays $3 (but you pay $1 to play, so you profit $2), five pays $100, and six pays $2,600.

    asked by bob
  299. CHEM 11

    I am really stuck with this... what mass of oxygen is contained in 10.5 umol of chromium(III)nitrate hexahydrate? Can't understand how to convert the micro-moles especially!

    asked by lo
  300. english

    Long ago,farmers milked cows by hand. Is milked the action verb and by the linking verb also is use a linking verb

    asked by jill
  301. Physics

    A projectile (mass = 0.10 kg) is fired at and embeds itself in a target (mass = 2.11 kg). The target (with the projectile in it) flies off after being struck. What percentage of the projectile's incident kinetic energy does the target (with the projectile

    asked by Lauren
  302. Physics

    A car (mass = 1180 kg) is traveling at 36 m/s when it collides head-on with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle

    asked by Lauren
  303. Physics

    Car 1 has a mass of m1 = 65 multiplied by 103 kg and moves at a velocity of v01 = +0.95 m/s. Car 2, with a mass of m2 = 92 multiplied by 103 kg and a velocity of v02 = +1.1 m/s, overtakes car 1 and couples to it. Neglect the effects of friction in your

    asked by Lauren
  304. Math

    Let A = {a, b, c}, & B= {1, 2} a) Determine A x B b) Determine B x A c) Does A x B = B x A? d) Does |A x B| = |B x A| ?

    asked by Vanessa
  305. Chemistry

    How many kilojoules of heat energy are needed to change 49.6 g of ice at 15 degrees celsius to water at 58 degrees celsius? I am having trouble figuring out how to solve this.

    asked by Julia
  306. cost accounting

    Underapplied or overapplied overhead, prepare the necessary journal entry to close the overhead account if the balance is considered immaterial

    asked by Anonymous
  307. medical

    youre the chairperson of the forms committee discuss the basic specifications for designing a form

    asked by pennfoster
  308. Physics please help!!

    A 60cm diameter bike wheel starts at rest and develops an angular speed of 12.0 rad/s in 10 seconds. What linear distance does the bike travel?

    asked by Megan
  309. Math -Ultimate challenge puzzle

    andrew, bernard, and clyde are bicicling. each one is riding the bicicle of on friend and wearing the hat of another. the one who wears claude's hat is riding bernard's bicicle. who is riding andrew's bicicle?

    asked by Rachel
  310. chemistry

    If 0.1200g of sodium carbonate is dissolved in 50 mL of water and titrated with 0.1000 M HCl, how many mL of HCl will be required to reach the second endpoint? CO3^-2 + H^+1 --> HCO3^-1 HCO3^-1,+ H^+1 --> H2CO3

    asked by Anna
  311. geometry

    a cable attach to the top of a tv antenna is 100 ft. if the cable is fasten to the ground 28 ft from the base of the antenna how tall is the antenna?

    asked by angel
  312. Chemistry

    How many kJ will be released as 575 g of steam at 176 degrees celsius are changed into ice at -75 degrees celsius?

    asked by Julia
  313. physics

    If a runner travels at a speed of 10 m/s for 5 seconds, stops for a short time then continues on at a speed of 8 m/s for 4 seconds. How long was the runner stopped for if his average speed at the end of the trip is 4 m/s.

    asked by mikey
  314. math

    The distance between (0, 0) and (0, 1) on a certain coordinate plane is 1cm. The distance between (0, 0) and (1, 0) on that same coordinate plane is 1cm. What is the distance between (0, 0) and (1, 1)? Explain your answer.

    asked by anonymus
  315. general chemistry 1

    The density of diamond is 3.51 g/cm3 and the density of lead is 11.3 g/cm3. If equal masses of diamond and lead are transferred to equal volumes of water in separate graduated cylinders, which graduated cylinder would have the greatest volume change?

    asked by Netta
  316. physics

    A sled initially at rest has a mass of 47.2 kg, including all of its contents. A block with a mass of 14.5 kg is ejected to the left at a speed of 13.5 m/s. What is the speed of the sled and the remaining contents?

    asked by Anonymous
  317. physics

    A sled initially at rest has a mass of 47.2 kg, including all of its contents. A block with a mass of 14.5 kg is ejected to the left at a speed of 13.5 m/s. What is the speed of the sled and the remaining contents?

    asked by Anonymous
  318. Math

    If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample

    asked by Vanessa
  319. Algebra 2

    The yearly Egyptian production of oil O(t) in millions of barrels, t years after 2000 can be approximated by, O(t)=-40.5t +2159 Using inequality, determine the years for which the production will drop below 1750 million barrels. This is what I have and

    asked by Monica
  320. math

    absolute value of(x + 3) + absolute value of (3 - x) < 9. I am not sure how to go about this question. Although, we generally use three cases.

    asked by Jenni
  321. physics

    Stuck in the middle of a frozen pond with only your physics book, you decide to put physics in action and throw the 6-kg book. If your mass is 54 kg and you throw the book at 14 m/s, how fast do you then slide across the ice? (Assume the absence of

    asked by Anonymous
  322. Ethics

    What moral is the fondness of war related to? I'm trying to sum it up in a concise phrase or word but I can't think of the right one. Ambitiousness? Belligerent? Thanks

    asked by jane
  323. math

    if you divide 35 and 10 what would be the answer? would it be even or odd

    asked by abigail
  324. Math

    Can someone help me solve this question? I've read the book, notes, I still don't get it... Simply each of the following. a) n!/(n-1)! b) (n-r)!/(n-r-1)!

    asked by Joey
  325. Physics

    The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.005 kg, and its velocity is +730 m/s. Her

    asked by Lauren
  326. physics

    design an experiment that will allow you to determine the length of the soccer field from one set of goal posts to a single goal post at the other end of the field.you may only use one metre stick,and two retort stands.you are not permitted to walk onto

    asked by shan
  327. Science / ELA

    Can you see if this essay below needs some corrections that may need to be fixed: Rocks go through the rock cycle; each type of rock can be changed into any other type of Rocks. Rocks are continuously formed; soon later the rocks start to erode and then

    asked by Anono.( CAN SOMEONE CHECK THIS PLZZZ!!!)
  328. MATH

    If A is a subset of B (not necessarily proper) and B is a subset of C (not necessarily proper) the A is a proper subset of C. True or False if false must provide a counterexample

    asked by Vanessa
  329. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on

    asked by Kelly
  330. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on

    asked by Kelly
  331. geometry

    a cable attach to the top of a tv antenna is 100ft long if the cable is fasten to the ground 28 ft from the base of the antenna how tall is the antenna?

    asked by angel
  332. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on

    asked by Kelly
  333. Chemistry

    Li2SO4+AgNO3= ???

    asked by Artie
  334. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on

    asked by Kelly
  335. chemistry

    A 25 mL solution of .5M NaOH is titrated until neutralization into a 50mL sample of HCl. What was the concentration of HCl?

    asked by E
  336. physics

    A loop of wire is lying flat on a tabletop. A uniform magnetic field is directed vertically UPWARDS such that it is perpendicular to the tabletop (and the loop). Beyond the edge of the table, the magnetic field is zero. Imagine that you are looking DOWN on

    asked by Kelly
  337. Physics

    A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +18.5 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +14.5 revolutions. (a) How much time does it take for the bike to

    asked by Lauren
  338. HChemistry

    A piece of zinc with a mass of 0.100 g reacts with 20.0 mL of 6.0 M HCl at a temperature of 25 C and a pressure of 750 mm Hg in 600 seconds. Calculate the average rate at which the hydrogen gas is produced in mL/sec.

    asked by mbm
  339. Math

    I am writing a Commerical/Advertisement and my audience is single Proportion looking for the perfect match. My Topic I am making the AD is: Proportions: When are two fractions ever a perfect match to each other? I don't understand what my topic is and what

    asked by Sumaiya
  340. physics

    If a metal wire carries a current of 130 mA, how long does it take for 3.50×10 20 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10 −19 C. Answer in units of s.

    asked by bre
  341. Algebra 2

    Did I do this correctly, D(p)= 2000-60p S(p)=460+94p p is the price in dollars a) find those values of p for which demand exceeds supply 2000-60P > 460 + 94p 2460 > 154p $15.97 > p b) find those value of p for which demand is less than supply 2000-60P <

    asked by Monica
  342. physics

    At 25°C, sound can travel 100 meters across a football field in 0.29 seconds. Determine the velocity of these sound waves.

    asked by aaaskd
  343. chemistry

    If we have 0.128 grams of copper (ll) sukfate how many molecules do we have?

    asked by Bryce
  344. Math

    Write and equation to match the problem situation below. Callie has 4 rimes as many CDs as she has DVDs. She has a total of 60 CDs and DVD. How many dvds, d, does callie have?

    asked by Please help!
  345. Math

    Marc has completed 60% of his science project. What fraction of his project has he NOT completed?

    asked by Matherz
  346. physics

    A skateboard track has the form of a circular arc with a 3.20 m radius, extending to an angle of 90.0° relative to the vertical on either side of the lowest point, as shown in Figure 8-24. A 67.0 kg skateboarder starts from rest at the top of the circular

    asked by king
  347. math

    graphing with out an equasion...y=-x

    asked by Scott
  348. math

    bob earned $245 last week. She spent 9% of her earnings on movies. What deciaml represents this percent?

    asked by Idislikepimples
  349. MATH

    Find the solution of the given initial value problem. ty'+(t+1)y=t y(ln2)=0 t < 0

    asked by ALEX