Questions Asked on
November 10, 2013

  1. Science

    Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg? a.The bones in the two species provide for the same type of motion. b.The bones in the two species are both vestigial structures. c.The two

    asked by Anonymous
  2. science

    which of earths spheres contains most of is mass ? a) atmosphere b) hydrosphere c) geosphere d) biosphere

    asked by victoria
  3. science

    earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity

    asked by victoria
  4. Physics

    A certain spring stretches 5.8cm when a load of 38N is suspended from it. How much will the spring stretch if 48N is suspended from it (and it doesn't reach its elastic limit)?

    asked by Rachel
  5. Evolution

    Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg? a.The bones in the two species provide for the same type of motion. b.The bones in the two species are both vestigial structures. c.The two

    asked by Anonymous
  6. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous
  7. law and ethics in allied health

    mens rea is latin for a.let the master answer b.the guilty mind c.the thing speaks for itself d.the guilty act my answer is b

    asked by susue
  8. physics

    A firecracker in a coconut blows the coconut into three pieces. Two pieces of equal mass fly off south and west, perpendicular to each other, at 21m/s . The third piece has twice the mass as the other two. What is the speed of the third piece? What is the

    asked by samm
  9. CALCULUS

    If you could give an explenation with the answers, that'd be wonderful so I actually know how to solve similar problems in the future. :) Thank you so much! 1. A convex lens with focal length f centimeters will project the image of an object on a point

    asked by Samantha
  10. Phyics

    A uniform board is leaning against a smooth vertical wall. The board is at an angle above the horizontal ground. The coefficient of static friction between the ground and the lower end of the board is 0.710. Find the smallest value for the angle , such

    asked by Bobby
  11. Science

    Study the wings of the birds in the two images below. Which of the following words applies to only one of the wing structures represented in this pair of species? A. homologous B. developmental C. vestigial D. inherited I cannot post the pictures, but they

    asked by Anonymous
  12. Business Math

    Pete Air wants to buy a used Jeep in 5 years. He estimates the Jeep will cost $15,000. Assume Pete invests $10,000 now at 12% interest compounded semiannually. Calculate the maturity value of the investment

    asked by Jimmy
  13. Phyics

    A 49-N crate is suspended from the left end of a plank. The plank weighs 21 N, but it is not uniform, so its center of gravity does not lie halfway between the two ends. The system is balanced by a support that is 0.30 m from the left end of the plank. How

    asked by Bobby
  14. Physics

    An incompressible fluid is flowing through a horizontal pipe with a constriction. The velocity of the fluid in the wide section of the pipe is 4.00 m/s and the velocity of the fluid in the narrow section of pipe is 9.00 m/s. The pressure of the fluid in

    asked by Mikhail
  15. Statistics

    Hoping to lure more shoppers downtown, a city builds a new parking garage in the central business district. The city hopes that the parking revenues will pay for the garage. During a recent two month period (44 days), the city statistician calculated the

    asked by Katie
  16. Fluid Mechanics

    A sluice gate consists of a quadrant of a circle of radius 1.5m pivoted at its centre O. Its centre of gravity is at G, as Shown in fig 1. When the water is level with the pivot O, calculate the magnitude and direction of the resultant force on the gate

    asked by Mahmoud shamallah
  17. Really need help in Calculus Problem?!

    Use Euler's method with step size .2 to estimate y(.4), where y(x) is the solution of the initial value problem y=x+y^2, y=0. Repeat part a with step size .1

    asked by Bryan
  18. Personal Finance

    On December 1, 2004 a $1,000.00 bond, paying 6% interest on January 1st and July 1st of each year is purchased for $950.00. The bond is sold on December 5, 2005 for $980.00. What would be the total monetary return including both interest and capital gains

    asked by Anthony
  19. physics

    The magnitude of each force is 283 N, the force on the right is applied at an angle 41 and the mass of the block is 27 kg. The coefficient of friction is 0.283. The acceleration of gravity is 9.8 m/s2 . 27 kg μ = 0.283 283 N 41 degrees 283 N What is the

    asked by james
  20. physics

    A spacecraft is in circular Earth orbit at 5400km altitude. By how much will its altitude decrease if it moves to a new circular orbit where its orbital speed is 20% higher?

    asked by Judith
  21. PHYSICS helppp!!!

    A conductor consists of a circular loop of radius R and two straight, long sections The wire lies in the plane of the paper and carries a current I. Find an expression for the vector magnetic field at the center of the loop

    asked by ANITA
  22. calculus

    Use Euler's method with step size .2 to estimate y(.4), where y(x) is the solution of the initial value problem y=x+y^2, y=0. Repeat part a with step size .1

    asked by Bryan
  23. Physics

    Calculate the water pressure at the bottom of the 100-m-high water tower

    asked by Rachel
  24. Phyics

    A 1390-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire and the

    asked by Johnson
  25. Math ms sue please please please help!!!!!!

    1)a bag contains five red marbles and seven blue marbles. you pull one marble out of the bag and replace it before putting out a second marble. what kind of event is this? independent, dependent, or both? 2) A bag contains 5 marbles. Without looking, you

    asked by Math help
  26. Science

    A portion of the amino acid sequence of an enzyme from a worm is shown below. -Q-Q-Q-N-N-N-C-C Analyze the same portion of the same enzyme taken from several other organisms. Place them in order from most closely related to the worm most distantly related

    asked by Anonymous
  27. chemistry

    Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen

    asked by a.m
  28. Algebra

    Show all steps and Find the maximum revenue for the revenue function R(x)= 360x - 0.05x^2

    asked by Leah
  29. Probability

    When I swing at a nail, I drive it all the way in with probability 1/2. With probability 1/4, I hit it half-way in, and with 1/4 probability I miss it entirely. I'm pretty sure that if I swing 4 times at a nail, I'll get it all the way in almost all the

    asked by Halp
  30. Chemistry

    A compound containing only boron, nitrogen, and hydrogen was found to be 40.3% B, 5202% N, 7.5% H by mass. If 3.301g of this compound is dissolved in 50.00g of benzene, the solution produced freezes at 1.30 degree celsius. if the freezing point depression

    asked by Temmick
  31. chemistry

    A 0.411 mol sample of PCl5(g) is injected into an empty 4.65 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.kc=1.80 at 250c

    asked by muna
  32. Chemistry

    When excess NaOH is added to Zn(OH)2, the complex ion Zn(OH)4 2- is formed. Determine the molar solubility of Zn(OH)2 in .10 M NaOH. Compare with the molar solubility of Zn(OH)2 in pure water. I thought I knew how to do this problem, but I'm not getting

    asked by Olivia
  33. chemistry

    What volume of carbon monoxide gas (at STP) is needed when 1.31 moles of oxygen gas react completely in the following equation? 2 CO + O2 --> 2 CO2

    asked by B
  34. math

    The produce manager receives 5 containers of green beans, each weighing 7 pounds. She divides the total amount of green beans into 3 equal weight portions. What is the weight of the beans in each portion?

    asked by Tam
  35. Math

    Marsha hits a tennis ball upward from the top of a 90 foot high cliff with an initial velocity of 16 ft/s. Marsha hit the ball when it was 6 ft. above the top of the cliff. a. assume that the tennis ball will hit the ground below the cliff. Determine the

    asked by anonymous
  36. physics

    Masses 19 kg and 9 kg are connected by a light string that passes over a frictionless pulley as shown in the figure ( The figure shows the 19 kg block on the table connected by a string through a pulley which is connected to the 5 kg block hanging off the

    asked by james
  37. Math

    When estimating distances from a table of velocity data, it is not necessary that the time intervals are equally spaced. After a space ship is launched, the following velocity data is obtained. Use these data to estimate the height above the Earth's

    asked by steve
  38. math

    Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

    asked by Anonymous
  39. Physics Part 2

    Rick's next shot isn't as good. She hits the cue ball with a velocity of 5.6 m/s and it hits the 4 ball. The cue ball bounces off at a 45 degree angle off it's original path at a speed of 3.5 m/s. What is the velocity of the 4 ball? ---So all i know is the

    asked by CC
  40. Chemistry

    Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen

    asked by Andy
  41. Algebra

    The depth of the water in Jeanne's hot tub varies directly with the number of minutes that the faucet is turned on. At 8.15 A.M Jeanne's started filling her circular hot tub with water. At 8.59 A.M there was a foot of water in the tub. When will the hot

    asked by Jynessa
  42. math

    A politician claims that she will receive 59% of the vote in an upcoming election. The results of a properly designed random sample of 100 voters showed that 54 of those sampled will vote for her. Is it likely that her assertion is correct at the 0.05

    asked by Lauren
  43. Physics

    How much force is needed to hold a nearly weightless but rigid 1-L carton beneath the surface of water?

    asked by Rachel
  44. Chemistry

    Heisenberg's uncertainty principle can be expressed mathematically as Δx*Δp = h/4π, where Δx and Δp denote the uncertainty in position and momentum respectively and h is Planck's constant. What would be the uncertaintry in the position of a neutron

    asked by Andy
  45. Health

    3. All drugs are not medicines because not all drugs are used to cure, prevent, of treat illness or discomfort. In fact, some drugs possess mind-altering effects that have no medical purpose such as drugs of abuse, which alters the manner in which the

    asked by Anonymous
  46. physics

    Masses 19 kg and 9 kg are connected by a light string that passes over a frictionless pulley as shown in the figure ( The figure shows the 19 kg block on the table connected by a string through a pulley which is connected to the 5 kg block hanging off the

    asked by james
  47. physics

    A block is at rest on the incline shown in the figure. The coefficients of static and kinetic friction are μs = 0.7 and μk = 0.59, respec- tively. The acceleration of gravity is 9.8 m/s2 What is the frictional force acting on the 29 kg mass? Answer in

    asked by james
  48. Physics - PLEASE HELP

    A rod is 2.40 m long and has a diameter of 2.50 mm. A force of 2000 N is applied to the end to stretch the rod by 1.00 mm. What is the tensile modulus for this rod? 7.50 × 1011 N/m2 8.70 × 1011 N/m2 9.78 × 1011 N/m2 10.2 × 1011 N/m2 10.8 × 1011 N/m2

    asked by Jon
  49. law and ethics in allied health

    res ipsa loquitur means the burden of proof? a.falls on the plaintiff b.proves the negligence c.shifts to the defendant d.exceeds reasonable doubt my answer is c

    asked by susue
  50. Math

    How do you find the point of intersection of cosx=cos2x?

    asked by Quratulann
  51. Math

    Audrey bought 7 pounds of diced apples and shared them equally among 4 friends. How many pounds of apples did each person receive? Two of the friends put the portions they received together and then gave them to the food pantry. How many pounds of apples

    asked by Tam
  52. ncc

    a block of mass M, resting on an incline with angle theta, is attached to a second block of mass m by a cord that passes over a smooth peg at the top of the triangular-shaped incline. all surfaces are frictionless. find the minimum and maximum values of m

    asked by Anonymous
  53. physics

    A bicycle chain is wrapped around a rear sprocket (r = 0.041 m) and a front sprocket (r = 0.15 m). The chain moves with a speed of 1.4 m/s around the sprockets, while the bike moves at a constant velocity. Find the magnitude of the acceleration of a chain

    asked by Anonymous
  54. O Chem

    In the laboratory process of isolating Eugenol from cloves via a steam distillation, extraction, drying, and final distillation what would be the best drying agent to use? Sodium Sulfate (Capacity=high Completeness=low rate=medium) or Magnesium

    asked by BigBlue
  55. Chemistry

    Hydrogen exhibits several series of line spectra in different spectral regions. For example the Lyman series (nf = 1 in Balmer-Rydberg equation) occurs in the ultraviolet region while the Balmer (nf = 2) series occurs in the visible range and the Paschen

    asked by Andy
  56. Math

    1. A customer comes into Pierre's and orders a random assortment of 6 danish. At the time she comes in, there are 26 danish sitting out: 12 raspberry, 8 cheese, and 6 cinnamon. Assume the danish are not replaced. a) What is the probability that the third

    asked by Cece
  57. Finance

    A 10-year bond has a coupon rate of 7% annually and a principal payment of $1,000.0. Other similar bonds are paying 9% annually. To determine the value of the bond you must find the interest factors, IF. at: A. 9% for 10 periods B. 9% for 20 periods C.

    asked by Michelle
  58. History (black death)

    Which best describes the right answer to: The Black Death first came to Europe- a) through sailors in Italian ports. or b) through merchants trading in France. I know that it was spread through ship. But the wordings that she put is so confusing....

    asked by jason
  59. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)

    asked by Becca
  60. Spanish

    1. ¿Tenías muchos juguetes cuando eras niña? No, sólo tenía dos: _______. A. un dinosaurio y una muñeca B. un oso y un columpio C. un pájaro y un tobogán D. un carrusel y una tortuga I said A 2. ¿Adónde van algunos niños antes de ir a la escuela

    asked by Eri Uchi
  61. physics

    Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell

    asked by manu
  62. Chemistry

    A sample of unknown metal has a mass of 36.7 g. This metal was placed in boiling water at 96.0oC until the metal had reached the temperature of the water. The metal was then placed in a foam cup with 50.0 g of water in it at 20.0oC. The cup absorbs 42.0

    asked by katie
  63. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)

    asked by Becca
  64. Probability

    In the card game bridge, each of 4 players is dealt a hand of 13 of the 52 cards. What is the probability that each player receives exactly one Ace?

    asked by la la ala ala
  65. Evolution

    Study the wings of the birds in the two images below. Which of the following words applies to only one of the wing structures represented in this pair of species? A. homologous B. developmental C. vestigial D. inherited I cannot post the pictures, but they

    asked by Anonymous
  66. Finance

    Corporate bonds issued by Johnson Corporation currently yield 11.5%. Municipal bonds of equal risk currently yield 6.5%. At what tax rate would an investor be indifferent between these two bonds? Round your answer to two decimal places.

    asked by netgear
  67. physics

    A block accelerates at 3.3 m/s2 down a plane inclined at an angle 27.0. m μk 3.3 m/s2 27 Find μk between the block and the in- clined plane. The acceleration of gravity is 9.81 m/s2 .

    asked by james
  68. chemistry

    Calculate the partial pressure of propane in a mixture that contains equal numbers of moles of propane (C3H8) and butane (C4H10) at 20 °C and 616 mmHg. (R=0.082 L-atm/K mol)

    asked by Becca
  69. Physics

    Tom the cat is chasing Jerry the mouse across a table surface 2.4 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 4.8 m/s. Where will Tom strike the floor? The acceleration of

    asked by Jerry
  70. algebra

    Which choice is the equation of a line that passes through the point (5, –1) and is perpendicular to the line represented by this equation? y = −x + 5 A. y = x− 6 B. 5x − y = 5 C. y = −x− 1 D. 2x− 5y = −1 can someone please show me how to

    asked by caduceus
  71. Physics

    Tom the cat is chasing Jerry the mouse across a table surface 2.4 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 4.8 m/s. Where will Tom strike the floor? The acceleration of

    asked by Bob
  72. Physics

    A ball is thrown horizontally from the top of a building 45.2 m high. The ball strikes the ground at a point 78.9 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 . Find the time the ball is in motion, initial velocity, and x and y

    asked by Bob
  73. science

    A bullet is fired horizontally with a velocity of 250 m/s from the top of a building 100m high. Find the Horizontal and vertical velocities of the bullet when it reaches the ground, the resultant velocity, the horizontal displacement, the net displacement,

    asked by purplekish
  74. physics

    three electric charges, 3e, 3e and 12e, where "e" is proton charge, are placed at three of four vertices of a square of side 3cm. Calculate the electric field in the center of the square.

    asked by manu
  75. Algebra

    Which choice could be the equation of a line parallel to the line represented by this equation? 7x− 12y = −32 A. y = 12/7x - 3 B. y = -7/12x + 5 C. y = 7/12x - 9 D. y = 7x - 12 can someone please give me a step-by-step on how to do this? i'm having a

    asked by caduceus
  76. math

    celeste hiked 1.8 miles in 0.75 hour. What is her average rate of speed?

    asked by joey
  77. Calculus

    For p = 15e^-x, 0 < x < 7, find the local extrema

    asked by Anonymous
  78. physics

    A light inflexible cable is wrapped around a cylinder of mass , radius , and moment of inertia about the center of mass . The cylinder rotates about its axis without friction. The cable does not slip on the cylinder when set in motion. The free end of the

    asked by Anonymous
  79. Math

    Tristen has three 4 foot long boards. He needs to cut pieces that are 13 inches long from the boards. What is the greatest number of boards he can cut?

    asked by Tonya
  80. PHYICS

    A person is standing on a level floor. His head, upper torso, arms, and hands together weigh 470 N and have a center of gravity that is 1.13 m above the floor. His upper legs weigh 108 N and have a center of gravity that is 0.755 m above the floor.

    asked by Bobby
  81. Statistics

    Hoping to lure more shoppers downtown, a city builds a new parking garage in the central business district. The city hopes that the parking revenues will pay for the garage. During a recent two month period (44 days), the city statistician calculated the

    asked by Katie
  82. health

    All of the following should be considered competitors, with the exception of which one? Existing competitors, Indirect competitors, Potential competitors, Direct competitors

    asked by Sheryl
  83. Science

    an insect undergoes major changes in its life cycle - from egg, to larva, to pupa, to adult. This insect goes through what?

    asked by Steve
  84. chem

    What volume of carbon dioxide gas (at STP) is produced when 1.01 moles of oxygen gas react completely? 2CO + O2 -> 2CO2

    asked by Dakota
  85. chem

    What volume of ammonia gas will be produced when 6.52 L of hydrogen react completely? 2N2 + 3H2 -> 2NH3

    asked by Dakota
  86. Psychology

    I need help on collecting information for my research paper. Thanks in advance. Prepare a 1,400- to 1,750-word paper in which you explain the interaction between hormones and behavior, and how these interactions affect the determination of gender identity.

    asked by Nikita
  87. dynamics

    A slotted disk is rotating with constant angular velocity ω−−, as shown in the figure. A ball of mass m slides out from the center of the disk. Kinetic friction force F=μk|N| acts on the mass, where N is the normal force between the ball and the

    asked by solid chem
  88. chemistry

    Heisenberg's uncertainty principle can be expressed mathematically as Δx*Δp = h/4π, where Δx and Δp denote the uncertainty in position and momentum respectively and h is Planck's constant. What would be the uncertaintry in the position of a fly (mass

    asked by a.m
  89. Math

    A football arena measures 100ft. wide by 200ft long.The games are played on a similar rectangular field that's 150ft. long. What is the width of the football field? What is the perimeter of the football field?

    asked by Frank
  90. Algebra

    A manufacture of CD player has monthly fixed cost of 8600 and variable cost of 55 per unit for one particular model. The company sells this model to dealers for 115 each. Which is their function for the profit. Please show all work.

    asked by Daiske
  91. algebra

    Which choice could be the equation of a line perpendicular to the line represented by this equation? y = 5 for this question, i put this: y = -1/5x but, it says i am wrong. how is that? 5 is 5/1, and so the negative reciprocal of 5/1 would be -1/5, right?

    asked by caduceus
  92. physics

    What is the magnitude of the net electrostatic force a Boron nucleus would experience at the point halfway between the Magnesium nucleus and the 3e charge on the y axis in N?

    asked by Anonymous
  93. math/ algebra 1

    can someone please help me explain how they got this answer and can someone please show me the steps into solving this question? Q: Four more than the quotient of a number and three is at least nine.

    asked by ellie
  94. Chemistry

    What is the mass of a fly in grams if its de Broglie wavelength is 1.545e-31 m when it is traveling at a velocity of 3.605 m/s

    asked by Andy
  95. algebra 1

    a number is less than one fourth of the sum of three times the number and four. can someone please explain to me how they got this answer and can someone please show me each step.

    asked by morgan
  96. math

    Company A rents copiers for a monthly charge of $200 and $0.08 per copy. Company B rent copiers for a monthly charge of $400 and $0.04 per copy. How many copies produce the same bill? The answer I have is 5,0000 is this correct? Thanks

    asked by P
  97. PreCal

    Find all real numbers x and y -2x-4-2yi=3x-2i 5x+2yi=-4+2i 5x=-4 so x=-4/5 2yi=2i so you =1 This was what I got by an online calculator said x=-4/5-2iy/5+2i/5 y=5ix/2+2i+1 Which is right?

    asked by Terri
  98. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous
  99. physics

    A capacitor has circular plates of radius r=12cm that are a distance d=0.1cm apart. The capacitor is hooked up to a 12V battery. If the plates are pulled apart so that they are now a distance d=0.2cm apart, what magnitude of charge accumulates on each

    asked by karoaly
  100. PHYSICS

    What's the total mechanical energy of a 300kg satellite in circular orbit 1400km above Earth's surface?

    asked by Judith
  101. Physics

    Acoustics. How do engineers design buildings to reduce noise pollution?

    asked by Janee
  102. stats

    Suppose that 20% of Canadians smoke. In a random sample of 20 Canadians, find the probability that more than 1 smokes

    asked by alf
  103. math

    The graph of the function f(x)=2^x/a passes through the points (0,b) and (2,0.8). Calculate the values of a and b. Thank you so much for huge help:)))

    asked by Lucas
  104. Physics

    the 8kg mass of an object moves in a distance of radius 10cm at 15m^2.calculate the angular velocity

    asked by Eela
  105. Evolution

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? a. sequence the same gene in both species to compare their similarity. b. dissect specimens of both species to

    asked by Anonymous
  106. math

    An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 1,500 + 300 ln a (a ≥ 1) How many units are sold after spending $1,000?

    asked by lisa
  107. film

    What does it mean for a film to be presented in “chronological order”?

    asked by Anonymous
  108. physics

    A football player runs directly down the field for 35m before turning to the right at and angle of 225 degrees from his original direction and running an additional 15m before getting tackled. What is the distance from the player's original starting point

    asked by Anonymous
  109. algebra

    2b - 2/ 2b2 - 8

    asked by Anonymous
  110. physics

    A capacitor has a circular plate of radiusr=12cm that are at a distance of .2cm part.this is hooked up to 12 V battery. if this caoacitor is submerged in water what happens to the capacitance?

    asked by james
  111. algebra

    Which choice is the equation of a line that passes through point (7, 3) and is parallel to the line represented by this equation? y = 2/7x - 3 A. 7x + 3y = 2 B. y = 2/7x + 1 C. y = -7/2x -3 D. 2x + 7y = 1 i would assume that the answer to this would be B,

    asked by caduceus
  112. science

    must all tpopgraphic maps have a contour line that represents 0m of elevation explain

    asked by Anonymous
  113. MATH

    5000000 times x divied by y ?

    asked by marissa
  114. physics

    What is the magnitude of the net electrostatic force a Boron nucleus would experience at the point halfway between the Magnesium nucleus and the 3e charge on the y axis in N?

    asked by Anonymous
  115. Algebra

    Find the equation of the line with y intercept 2 and perpendicular to the line y = 2/3x -4

    asked by Zelda
  116. algebra

    Which equation produces a line that is perpendicular to the line represented by the function below? y = 2/5x + 9 A. 5x + 2y = 4 B. 2x - 5y = 8 C. 5x - 2y = -3 D. 2x + 5y = -7

    asked by caduceus
  117. Health (Ms. Sue)

    Evaluate how alcohol use can affect a person's behavior.

    asked by Anonymous
  118. physics

    A capacitor has circular plates of radius \(r = 12\,cm\) that are a distance \(d = 0.1\,cm\) apart. What is the capacitance of this capacitor in \(F\)?

    asked by Anonymous
  119. algebra

    What is the slope of the line that is perpendicular to the line represented by the equation below? 4x - 5y = -1 A. 4/5 B. -4/5 C. 5/4 D. -5/4 is this c or d? reiny, i used what you said, but since this is subtraction i was unsure of whether or not it would

    asked by caduceus
  120. College Physics

    A wooden bridge crossing a canyon consists of a plank with length density λ = 2.25 kg/m suspended at h = 10.89 m below a tree branch by two ropes of length L = 2h and with a maximum rated tension of 2000 N, which are attached to the ends of the plank, as

    asked by Kimmy
  121. BCIT

    A series of standard solutions of benzene in toluene solvent is to be prepared for an internal standard procedure with ethylbenzene serving as the internal standard. Tell how you would prepare the solutions, including the milliliters of benzene

    asked by lori
  122. geometry PLEASE

    imageshack(.)(us)/photo/my-images/42/2vja.jpg/ Open that link please , just delete the parentheses please please help me with my assignments I beg you cooperate with me huhu 1. in the figure , the areas of traingle cef, triangle abe, triangle adf are 3,4,

    asked by BARBIE LEE
  123. American National Government

    Originalists often hold that it is incorrect to use the Equal Protection Clause of the Fourteenth Amendment to strike down laws that discriminate because

    asked by Anonymous
  124. chemistry

    What mass of ammonia is produced when 1.48 L of nitrogen (at STP) react completely in the following equation? N2 + 3H2 --> 2NH3

    asked by B
  125. science help!!

    You suffer from severe allergic reactions to things like stings from bees and wasps. What would be an important preparation for you if you were going to a farm to pick fruit?

    asked by anonymous
  126. physics

    if 3e charge is at the origin and magnesium nucleus is 3cm fom thr origin in the x-axis. what is the magnitude of the net electrostatic force a Boron nucleus would experience at a point half way between magnesium nucleus and 3e.

    asked by james
  127. Astronomy

    Which photon carries the highest energy? a) Infrared. b) Red light. c) Blue light. d) X-ray.

    asked by Anonymous
  128. math check

    a rectangle has an area of 319 square centimeters, and a length of 11 centimeters. what is its width? 319-22 =298 widths

    asked by gio
  129. Civics

    When was the 14th amendment passed?

    asked by Unknown
  130. law and ethics in allied health

    a formulary is a list of? a.procedurals steps to resolve ethical conflicts in the medical office b.approved drugs for which the insurance company pays c.proper behaviors and manners for a certain community d.employes covered by an employers health

    asked by susue
  131. Algebra

    A chemist has two solutions of sulfuric acid. The first is one half sulfuric acid and half water. The second is three-fourths sulfuric acid and one fourths water. He wishes to make 10 liters of a solution which is two-thirds sulfuric acid and one-thirds

    asked by Jane
  132. 9th algebra

    the sum of the digits of a two place fraction is 9. When its digits are reversed, the new fraction exceeds the original by 0.09. Find the original fraction.

    asked by Summer
  133. Algebra

    R(x)= 360x - 0.04x^2

    asked by Liala
  134. law and ethics in allied health

    an epidemic that becomes very widespread ans affects a whole region is called a a.vaccination b.pandemic c.formulary d.diaster my answer is d

    asked by susue
  135. Civics

    Why was the 14th amendment passed/needed? My answer- To guarantee all former slaves and their children were legally citizens of the USA under the Constitution.

    asked by Unknown
  136. math

    Students are hanging their art projects in the school hallway. Each student wants to hang a project that is 7/8 foot wide. The hallway is 16 feet long. If they don't leave any space between each project, how many projects will fit in the hallway

    asked by Anonymous
  137. PreCal

    express in form a+bi (1+2sqrt3)(2-3sqrt-3) so I came up with 2-3i sqrt3 + 4sqrt3 - 18i Is that solution a+bi form

    asked by Terri
  138. Algebra

    A manufacture sells watches for $31. The manufacture has a fixed cost of $6000 per month and variable cost of $15 per watch. How many watches must be sold to break even? Please show all work!

    asked by Maria
  139. math

    2x3 squared

    asked by gene
  140. Maths

    Rewrite evaluate the followings 1. 32^4/5 2. 125^2/3 3. 1296^3/4 4. 243^4/5 5. 8^2/3 6. 27^2/3 7. 16^3/2 8. 625^5/4

    asked by Kuromi
  141. Statistics

    According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women

    asked by Katie
  142. Statistics

    According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women

    asked by Katie
  143. CALCULUS

    Could someone please solve these four problems with explanations? I'd like to understand how to get to the answers. Thank you! Without using a calculator: For each of the following, find: I. lim x->a- f(x) II. lim x->a+ f(x) III. lim x->a f(x) A.

    asked by Samantha
  144. algebra

    what is the cube root of -125x^6

    asked by Haley
  145. chemistry

    What is the mass of a small car in grams if its de Broglie wavelength is 4.198e-38 m when it is traveling at a velocity of 11.84 m/s ?

    asked by arshi
  146. chemistry

    Heisenberg's uncertainty principle can be expressed mathematically as Δx*Δp = h/4π, where Δx and Δp denote the uncertainty in position and momentum respectively and h is Planck's constant. What would be the uncertaintry in the position of a fly (mass

    asked by a.m
  147. Pre-Calc

    I really need to understand wha tmakes a graph have these discontinuities 1)Removable 2)Non-Removable and how to tell them in a function

    asked by Carmen
  148. algebra 2

    So I am doing my algebra home work and I get stuck on these three problems. x^2-19x+72 from there idk what to do because nothing multiplies up to 72 and adds up to -19. Same for this one. x^2-25x+48 And x^2+9-90 (X+15) (x-6)

    asked by Alyssa
  149. Math

    (2-4i)-(-4+i)=

    asked by Tanya
  150. Criminal Justice

    Which one of the following is NOT a method for developing invisible fingerprints during a crime scene search for evidence? A. Powders B. Rolling C. Chemicals D. Fuming is it B 2. Information obtained during an interview and recorded in an investigator's

    asked by Amy
  151. algebra

    Which choice is the equation of a line that has a y-intercept of 7 and is parallel to the line represented by this equation? y = 6x− 5 A. y = 6x+ 7 B. y = 6x− 7 the other two answers pertain to perpendicular lines, so i excluded them. i was going to

    asked by caduceus
  152. Calculus Sigma Notation

    Find a and n such that: 8+16+32+64+128 (k=a) a=? n=?

    asked by Max
  153. Math

    When calculating the extremas, is there really a difference between relative and absolute extremas? Or are they just used interchangeably?

    asked by Mercy
  154. Chemistry

    For the reaction Zn(OH)2(s)+4CN-(aq)->Zn(CN)4 2-(aq)+2OH-(aq) find [CN-] when 8.5 g of Zn(OH)2 are dissolved in 1.00 L of solution.

    asked by Tyler
  155. MATH

    what is : 4)x+y)-10

    asked by marissa
  156. chemistry

    What is the the energy (in kJ/mol) of infrared radiation that has a frequency of 3.809e+13 Hz? The speed of light is 3.00x108 m/s and Planck's constant is 6.626x10-34 J*s. So i know the equation we use is E= hc/wavelength but i keep getting the wrong

    asked by anonymous
  157. Algebra

    What is the equation of the line that has a y-intercept of 5 and is parallel to the line represented by the equation below? 2x - y = 16 A. y = 2x + 5 B. y = -2x + 5 C. y = 1/2x - 5 D. y = -1/2x - 5 I guessed B for this one, but another choice of mine was

    asked by ENGINE
  158. HR

    A restaurant with over 300 employees in 3 different locations with the owner solely running the business. Explain how automation might create a more efficient process from the HR function chosen. How might an HRIS application assist the business?

    asked by Patrice
  159. Math

    Solve for B: A=1/2(b+B) h show work. I am struggling with the above equation can someone please help? Thanks

    asked by A
  160. Math

    Please help and explain how to solve and graph 410 Thanks

    asked by P
  161. Finance

    Following are selected financial data in thousands of dollars for the Hunter Corporation. 2012 2011 Current assets $ 500 $400 Fixed assets, net 700 600 Total assets 1,200 1,000 Current liabilities 300 200 Long-term debt 200 200 Common equity 700 600 Total

    asked by Joanne
  162. algebra 2 Please help

    8x/6y divide by 2x/3y

    asked by lisa
  163. PHYSICS

    At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.40%?

    asked by Judith
  164. algebra

    An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 4,500 + 200 ln a (a ¡Ý 1)How many units are sold after spending $1,000?

    asked by Jodie
  165. science help!!!

    Explain how your respiratory system could help guard your body against pathogens that are in the air.

    asked by anonymous
  166. college essay

    can someone edit my college essay? I was told by an admissions counselor to write a supplement describing my low cumulative GPA. It is a rough first draft, and probolaly needs to be heavily edited I am my truest and purest self, a mere child embarking on

    asked by chhristine
  167. physics

    What is the charge of a bare Magnesium nucleus (no electrons, just the protons and neutrons) in Coulombs?

    asked by Anonymous
  168. Math

    3 1/6 + 2 3/10 = Give answer in simplest form

    asked by Ron
  169. PreCal

    Determine the value of c for which the following quadratic equations will have one root. x^2-5x+c=0 I have no idea what formula to use to figure this out.

    asked by Terri
  170. math

    2 ln e = ln sq rt. 7/x-2 ln e

    asked by lisa
  171. law ans ethics in allied health

    the science of improving hededitary is known as a.genetics b.amniocentesis c.dna research d.eugenics my answer is a

    asked by susue
  172. Calculus

    Find the critical points of f(x) = 0.05x + 25 + (180/x)

    asked by Jess
  173. Pre-algebra

    Find the equation of a line that contains (-2, -2) and is perpendicular to y= -x+3

    asked by Barbara Passmore
  174. Math

    Can someone help me? How would I write 0 < x < 80 and 80 < x < 175 in interval notation?

    asked by Anonymous
  175. MATH

    2 3/4 + 1/12 = Give answer in its simplest form

    asked by Ron
  176. algebra

    Which choice is the equation of a line that passes through the point (–6, –2) and is perpendicular to the line represented by this equation? y = −3x + 1 A. 3x + y = 1 B. y = 1/3x C. y = −3x D. −3y = −x + 1 isn't the answer to this B, since the

    asked by caduceus
  177. Calculus

    P(x) = 12x / (1-x) What are the critical points and where is P(x) increasing and decreasing?

    asked by Jess
  178. Calc

    Let F(x, y, z) = z tan−1(y^2)i + z^3 ln(x^2 + 10)j + zk. Find the flux of F across S, the part of the paraboloid x^2 + y^2 + z = 19 that lies above the plane z = 3 and is oriented upward. Thanks! STudying for a quiz... *tan−1 is tan^(-1)

    asked by R
  179. Math

    1 1/5 + 7/10 = Give answer in simplest form

    asked by Ron
  180. Statistics

    According to a study by the Centers for Disease Control, the national mean hospital stay after childbirth is 2.1 days. Reviewing records at her own hospital, a hospital administrator calculates that the mean hospital stay for a random sample of 81 women

    asked by Katie
  181. Math

    2 7/12 + 1 2/3 = Give answer in simplest form

    asked by Ron
  182. Math

    3 7/10 - 1 2/5 = Give answer in simplest form

    asked by Ron
  183. biology

    Is their a relationship between strength and independent mobility? Can a spinal cord injury affect he body permanently?

    asked by Sharon Walton
  184. Informal logic

    A conditional sentence with a false antecedent is always (Points : 1)

    asked by Anonymous
  185. algebra 2

    So I am doing my algebra home work and I get stuck on these three problems. x^2-19x+72 from there idk what to do because nothing multiplies up to 72 and adds up to -19. Same for this one. x^2-25x+48 And x^2+9-90 (X+15) (x-6)

    asked by Alyssa
  186. Physics

    an object is pushed horizontally by a 0.0840-kiloN force over a frictionless table. find the resulting acceleration

    asked by Anonymous
  187. Math

    How would you write open intervals for concavity? After you find the second derivative of a !@#$%^&tion; How would you go about finding the concavity

    asked by Mercy
  188. math

    what is 71 times 45 equal

    asked by marissa