Questions Asked on
October 17, 2014

  1. Science

    Which of the following best explains why it is necessary for the body to eliminate waste?

    asked by Caitie Cat
  2. Physics

    help. A rescue helicopter drops a package of emergency ration to a stranded party on the ground. If the helicopter is traveling horizontally at 40m/sec at a height of 100 m above the ground, where does the package strike the ground relative to the point at

    asked by Shahab Mirza
  3. finance

    Suppose an investment offers to triple your money in 36 months (don’t believe it). What rate of return per quarter are you being offered

    asked by Helen
  4. Biology

    Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills.

    asked by Ash
  5. Science

    What conclusion can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their priorities? A. Properties of elements are related to atomic numbers. B. Properties of elements are related to

    asked by blue
  6. Language arts

    Which of the following exoresses a main idea from "Always to Remember"? A. Maya Ying Lin was a talented and smart college student who became a designer. B. Maya Ying Lin's family life, travel ecperiences, and education provided er a background necessary

    asked by anonymous
  7. physics

    During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 6.65 s, how high does it rise? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m CAN ANYONE HELP PLEASE ??????!!!

    asked by arturo bailon
  8. science

    The muscular system is essential because it allows our bones to A. Strength B. Contract C. Lengthen D. Move Is the answer is D? Thanks.

    asked by blue
  9. calculus

    If f(x) = 3 cos^2(x) − 6 sin(x) 0 ≤ x ≤ 2π Find the intervals of increase and decrease, the intervals of concave up and concave down, local maximum values, local minimum values, and inflection point

    asked by SIRI
  10. 7th grade math

    Not sure how to solve this: Suppose your school is selling magazine subscriptions. Each subscription cost $20. the company pays the school half of the total sales in dollars. The school must also pay a one-time fee of $18. What is the fewest number of

    asked by Alexis
  11. diff calculus

    1.) triangular corner lot has perpendicular sides of lengths 120 feet and 160 feet. Find the dimensions of the largest rectangular building that can be constructed on the lot with sides parallel to the streets.

    asked by west
  12. Spanish Questions?

    16. What makes Pan American Games different from the Olympic Games? some sports are unique, like jai alai they are celebrated every 2 years only Cuba can host them they are celebrated every 6 years 17. Which theory was developed based on observations made

    asked by Anonymous
  13. Biology

    Compare and contrast indirect versus direct values of biodiversity, and provide examples.

    asked by David
  14. CALCULUS

    1. A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 108 inches. Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is square.)

    asked by Please HELP
  15. Algebra / direct variations

    Select all of the following that are a direct variation. Songs are 99 cents each to download. Tickets for rides at the fair are $1 each. Arcade games are 50 cents or $1. To go tubing it is $5 to rent the tube and $7 for each hour

    asked by isaac clarke
  16. Language arts

    Which best describes Maya Ying Lin's design in "Always to remember" A. Place of healing, vertical like other monuments, durably made of stone. B. Harmonious with surrondings, place of healing, quiet memorial. C. Place of healing, political statement, quiet

    asked by anonymous
  17. algebra

    Samir begins riding his bike at a rate of 6 mph. Twelve minutes later, Chris leaves from the same point and bikes along the same route at 9 mph. At any given time, t, the distance traveled can be calculated using the formula d = rt, where d represents

    asked by kat
  18. Biology

    Compare and contrast the traits and growth patterns of opportunistic versus equilibrium populations.

    asked by Xander
  19. Algebra

    The ordered pairs (1,6), (2,36), (3,216), (4,1296), and (5,7776) represent a function. What is a rule that represents this function?

    asked by Steve
  20. nusyu

    A small, spherical bead of mass 3.00 g is released from rest at t = 0 from a point under the surface of a viscous liquid. The terminal speed is observed to be £oT = 2.00 cm/s. Find (a) the value of the constant b that appears in Equation 6.2, (b) the time

    asked by lin
  21. Algebra

    The ordered pairs (1,1), (2,8), (3,27), (4,64) , and (5,125) represent a function. What is a rule that represents this function? My answer is y = x cubed

    asked by Steve
  22. Spanish

    Sra. this week I had a review. Do my answers look correct? Part I Indique si las palabras en pares son sinónimos, antónimos, o no son relacionadas. 1. A ancho y apretado - antónimos B corto y flojo - no son relacionadas C vestirse y quitarse -

    asked by Anna
  23. Microbiology

    "people with takahara's disease don't produce catalase. Although often asymptomatic, this condition can lead to recurrent oral infections by peroxide-generating bacteria. How would you diagnose a catalase deficiency?" Would the answer be to put hydrogen

    asked by Amber
  24. health

    making a list of what you have to do and identifying what is most important is an example of. . . . A.mental rehearsal of tasks. B.relaxing by list making. C.time management. D.making connection

    asked by luvbae
  25. Science PLEASE HELP!

    Why is Lithium more reactive than Neon? I honestly do not understand this.

    asked by Bayleigh C
  26. Trigonometry

    Use the equation mg sin A = umg cos A to determine the angle at which a waxed wood block on an inclined plane of wet snow begins to slide. Assume the coefficient of friction, u, is 0.17.

    asked by TeeKay
  27. Algebra

    Using Cowling’s Rule what is the age of the child if the adults dose is 500mg and the child dose is 187 mg?

    asked by Sally
  28. Calculus

    A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T (in °F) of the lasagna is given by the function T(t)=e^94.86753-t)+70 , 0 ≤ t, where t is time (in hours) after

    asked by Anonymous
  29. social studies

    1. Which of the following was not listed as a religious denomination that was present in royal Georgia? • Puritans • Baptists • Catholics **** • Lutherans 2. Which of the following was discussed as a reason that education was limited in royal

    asked by kathy berry
  30. Pre-Calculous (Trig)

    The Singapore Flyer, currently the world's largest Ferris wheel, completes one rotation every 37 minutes.1 Measuring 150 m in diameter, the Flyer is set atop a terminal building, with a total height of 165 m from the ground to the top of the wheel. When

    asked by Randy
  31. Geometry

    1.1.Determine whether the regular pentagon has reflection symmetry, rotation symmetry, both, or neither. If it has reflection symmetry, state the number of axes of symmetry. If it has rotation symmetry, state the angle of rotation. For each type of

    asked by D
  32. physics

    a turntable rotates about a fixed axis, making one revolution in 10s . the moment of inertia of the turntable about it's axis is 1200kg/m^2 . a man of mass 80kg , initially standing at the center of the turntable, runs out along a radius. what is the

    asked by albert
  33. Equilibria

    How to calculate the [Cu2^+] in a solution that was initially 1.0 M NH3 and 0.10 M Cu2^+ ? Kf value for Cu(NH3)4 ^ 2+ = 2.1*10^13 Please give me a detailed way of doing this problem. Thank you very much

    asked by Ved G
  34. Physics Help Please!!!! Check!

    if I weigh N on Earth and 5320 N on the surface of a planet, what is the acceleration due to gravity on that planet? mg=702N m=702/9.8=71.6 kg mg=5320N g=5320/71.6=74.3 m/s^2

    asked by Kimberly
  35. mathematics

    Fill up the missing values LENGTH=60cm BREADTH =45cm HEIGHT=? Volume=54 dm³

    asked by Anonymous
  36. statistics

    A college student takes a standardized test and scores a 163. If the mean is 155 and the standard deviation is 7, what is the student’s percentile rank? (Assume a normal distribution.)

    asked by Gail
  37. algebra

    a cyclist rides her bike at the speed of 18 kilometers per hour what is this rate in meters per second how many meters will the cyclist travel in 2 seconds

    asked by amber
  38. CALCULUS

    Hi guys can you help me! Please teach me step by step.. I really need it. pls! Thank you......... A swimming pool is 12 meters long, 6 meters wide, 1 meter deep at the shallow end, and 3 meters deep at the deep end. Water is being pumped into the pool at

    asked by Jane
  39. history

    which of the following was not a rpespones of the colonies to the tea act? a. tea ships where sent back to britin in protest b. the tea was confiscated and sold later. c. crates of tea were dump in to the water. d. colonists made a profit because of the

    asked by somebody help i am new
  40. Calculus

    The cost of producing x ounces of gold from a new gold mine is C=f(x) dollars. Do you think the values of f'(x) will increase or decrease in the short term? What about the long term? Explain.

    asked by Anonymous
  41. physics

    At a distance of 1 cm from the source, the flux from the isotropic source is one hundred times brighter. Which source is brighter fifty centimeters away? At what distance from the source are the two equally bright? Could you explain the theory behind the

    asked by Jeremy
  42. Trigonometry

    Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.

    asked by TeeKay
  43. English

    This question is based on the following paragraph. (1) Brenda would have liked to have taken her vacation at the beach. (2) However, the weather forecast on the television called for rain. (3) Also, her fiancé, Max, wanted to vacation in the mountains.

    asked by Nelise
  44. Trigonometry

    Suppose a smooth glass-top table is tilted slowly. The angle, A, at which a glass plate on the table begins to slide is 43º. Use the equation mg sin A = umg cos A to determine the coefficient of friction, u. A)0.43 B)0.22 C)0.90 D)0.93

    asked by TeeKay
  45. social studies

    1. which of the following was not listed as a religious denomination that was present in royal georgia? puritans baptists catholics***** lutherans 2. which of the following was discussed as a reason that education was limited in royal Georgia? the school

    asked by kathy berry
  46. chem

    given the thermochemical equations, B2O3 + 3H2O -> 3O2 + B2H6 delta h = -2035 kj H2O -> H2O delta h = 44 kj H2 + 1/2O2 -> H2O delta h = -286 kj 2B + 3H2 -> B2H6 delta h = 36 kj what is the delta hf for 4B + 3O2 -> 2B2O3?

    asked by bekah
  47. Math

    Which statement is false? A. The number zero is a rational number. B. Some irrational are also rational numbers. C. Every irrational number is a real number. D. Every integer is a rational number Is the answer C?

    asked by happy
  48. us history

    what best summarizes the population decline of native americans.

    asked by kayla
  49. history

    at which meeting was georgia not represented? a. provincial congress b. frist continenental congress c. second continental congress d. council of safety.

    asked by somebody help i am new
  50. Language arts

    How do you form the perfect tense of a verb? A.Use the Helping verb will and the base form of the verb. B.Use a form of the verb be and the last particle of the verb C.Use a form of the verb have and the present participle of the verb. D.Use a form of the

    asked by Misty
  51. Math

    Suppose cosA = 12/13 with 0º≤A≤90º. Suppose also that sinB = 8/17 with 90º≤B≤180º. Find cos(A - B).

    asked by TeeKay
  52. Precalc Translations

    Let T(d) be the temperature of the seawater in the Mariana Trench d meters below the surface. Find a formula for p(x), the temperature x mm below the surface Insert 1 for coefficients that do not change and 0 for shifts that are not necessary My answers

    asked by Hassan
  53. Physics

    A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 720 m/s. The barrel is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.031 m below the center. What is the horizontal distance between the

    asked by Winona
  54. Grade 12

    a 4.0kg block is attached to a vertical rod by two strings.when the system rotates about the axis of the the rod,the strings extend.What is the tension in the lower cord if tension on upper cord is 60N ?

    asked by Tasnia Elahi
  55. Algebra

    Using the given points, determine Δy. (-3, -5) and (0, 10) Δy = 3 Δy = 5 Δy = 13 Δy = 15

    asked by Mclovin Mitchell
  56. Scientific notation

    Express in scientific notation. Choose the answer with the proper number of significant figures. 69,000,000,000 = _____ 69 x 109 6.9 x 1010 6.910 It has to be A, but I'm not exactly sure.

    asked by isaac clarke
  57. Scientific notation

    Express in scientific notation. Remember, M must be a number 1 ≤ M < 10. 32,400 = 3.24-4 3.24*10-4 3.2400*10-4 the dash means to the 4th power

    asked by isaac clarke
  58. chemistry

    what volume of 0.150M Li2Sr solution is required to completely react with 130ml of 0.150M Co(NO3)2

    asked by Jake
  59. Calculus

    Suppose a ball is thrown straight up into the air, and the height of the ball above the ground is given by the function h(t) = 6 + 37t – 16t2, where h is in feet and t is in seconds. At what time t does the ball stop going up and start returning to

    asked by Mary
  60. Physics

    (a) How high a hill can a car coast up (engine disengaged) if friction is negligible and its initial speed is 96.0 km/h? (b) If, in actuality, a 750 kg car with an initial speed of 96.0 km/h is observed to coast up a hill to a height 18.0 m above its

    asked by Devin
  61. science

    an elephant of mass 500kg stands with all four feet on the ground. each foot has an area of 0.08m^2.calculate the pressure exerted on the ground.[g=10m/s^2]

    asked by kwame
  62. Physics

    a person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 10 m/s. the cliff is 48 m above the water's surface as shown. how long does it take for the stone to fall to the water? the acceleration of gravity is 9.81 m/s2.

    asked by Kenny
  63. Trigonometry

    Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.

    asked by Molly
  64. Physics

    A block of mass 0.40 kg rests on the inclined surface of a wedge of mass 7.0 kg. The wedge is acted on by a horizontal force F with arrow and slides on a frictionless surface. a)If the coefficient of static friction between the wedge and the block is µs =

    asked by John Smith
  65. calculus

    A sample poll of 100 voters revealed the following information concerning three candidates A, B, and C who were running for three offices. 10 voted in favor of both A and B, 35 voted in favor of A or B but not C, 25 voted in favor of B but not A or C, 65

    asked by RAj
  66. scientific notation

    Express in scientific notation. Choose the answer with the proper number of significant figures. _____ 0.47 x 10-17 0.5 x 10-17 5 x 10-18

    asked by isaac clarke
  67. calculus

    Find the point on the surface z = 2x2+xy+3y2 where the tangent plane is parallel to the plane 8x-8y-z=5.

    asked by RAJ
  68. direct variation

    Y varies directly with X and has a constant rate of change of 6. When the value of Y is 11, then the value of X could be _____. equal to zero less than 2 equal to 6 greater than 11

    asked by isaac clarke
  69. calculus

    Use Lagrange multipliers to find the maximum and minimum values of f(x,y)=x^2y+3y^2-y subject to the constraintx^2+y^2less than or equal to 10

    asked by RAJ
  70. Physics

    Consider the skateboarder in the figure below. If she has a mass of 57 kg, an initial velocity of 21 m/s, and a velocity of 10 m/s at the top of the ramp, what is the work done by friction on the skateboarder? Ignore the kinetic energy of the skateboard's

    asked by Chrissy
  71. Physics

    A charge of +2uC is placed at one end of a meter stick, a charge of -2uC is placed at the other end. Calculate the electric field strength at the 50 cm mark

    asked by Josh
  72. Physics

    Spark timer acceleration lab How do you determine the acceleration from the slope of your best fit line?

    asked by Kiki
  73. Thermodynamics

    An insulated rigid tank contains 1.5 kg of helium at 30∘C and 500 kPa. A paddle wheel with a power rating of 0.1 kW is operated within the tank for 30 minutes. Cvof helium = 3.12 KJ/Kg.K Problem 7A. Calculate the net work done by helium, in kJ. Enter the

    asked by Phy
  74. physics

    A man on the moon throws a ball vertically upwards and it is notices that the ball travels 3.0m less in the fifth second of its upward motion that it does in the third second. What is the acceleration due to gravity on the moon?

    asked by Amjid
  75. Algebra

    Given the following piecewise function: Find the Given the following piecewise function: f(x)= {?(x+10 for -9 ?x

    asked by RAJ
  76. chemistry

    Propane (C3H8) which is used as fuel in BBQ tanks often contains some butane(C4H10). A sample of a fuel mixture known to contain both propane and butane occupies a certain volume at a total pressure of 30 mmHg. The sample is then burned completely to

    asked by Brooke
  77. 6th grade

    Pet Parade: Mr. James has 14 cats, dogs and guinea pigs. What are all the combinations he could have?

    asked by Tan
  78. Trigonometry

    Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.

    asked by Molly
  79. math

    lori recently rode her bike to her friend's house, 8 miles away. On her way back she rode 15mph faster than on her way there. She spent a total of 2 hours biking. What was her average speed each way?

    asked by je
  80. Physincs

    You are given vectors A⃗ = 4.8 i^− 6.7 j^ and B⃗ = - 3.4 i^+ 7.5 j^. A third vector C⃗ lies in the xy-plane. Vector C⃗ is perpendicular to vector A⃗ and the scalar product of C⃗ with B⃗ is 17.0.

    asked by HELP PHYSICs
  81. Physics

    An object slides down an inclined plane of initial height of 30m.its velocity at the foot of the plane is 20m..find the fraction of the initial potential energy which is dissipated as heat

    asked by McPete
  82. S.S

    1. In the southern campaign launched by the British, Cornwallis lost a battle with the Americans under Nathaniel Greene at A. Savannah. B. Cowpens. C. Camden. D. Charles Town. B?

    asked by Sarah
  83. Calculus

    Find the volume of the largest rectangular box with edges parallel to the axes that can be inscribed in the ellipsoid x^2/81+y^2/25+z^2/49=1

    asked by Siri
  84. calcu

    (4,-3) is on g For each of the following functions find a point on its graph. Enter exact answers. I cannot find the other three :( a) g(2x) - 5 ,(2,-8) b) 3g(x) + 1 c) -(g(1/3(x+4))-8) d) 1/2g(-5x-15)-8

    asked by Ray
  85. calculus

    A bright light on the ground illuminates a wall 12 meters away. A man walks from the light straight toward the building at a speed of 1.1 m/s. The man is 2 meters tall. When the man is 4 meters from the building, how fast is the length of his shadow on the

    asked by kiera bryant
  86. math

    Katarina made 6 book covers in each color: red, green, yellow, and purple. She gave 5 book covers to each of her 3 best friends, then she gave 2 book covers to her cousin. How many book covers does Katarina have now?

    asked by nicole
  87. Physics

    A marble rolls off a lab table that is 0.92 m high. It rolls off the table with a velocity of 1.66 m/s. How far from the base of the table must the chip be placed so that the marble will hit the chip?

    asked by Sam
  88. math

    Find the angle, in degrees, between two adjacent sides of the pyramid. P(2, 0, 0), Q(2, 2, 0), R(0, 2, 0), (base points) S(1, 1, 7) (tip point)

    asked by Morgan
  89. MATH HELP PLEASE

    Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?

    asked by anonymous
  90. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 3.30 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?

    asked by Anonymous
  91. Chem---DrBob222

    Show the route you would use to go from starting material to product. You should give the reaction conditions for each step, but it is not necessary to give detailed mechanisms. RCH2CH2R TO R-CH(BR is attached under CH)-CH3 RCH2-C-(3 CH3 is attached to

    asked by JuYoung
  92. Calculus

    The number of bacteria after t hours in a controlled laboratory experiment is n=f(t). Suppose there is an unlimited amount of space and nutrients for the bacteria. Which do you think is larger, f'(5) or f'(10)? If the supply of nutrients is limited,would

    asked by Anonymous
  93. Math

    1. Find all values of p such that 2(x+4)(x-2p) has a minimum value of -18. I know that y is the minimum value,I know x is -4. But, I am not sure how to find p. 2.The temperature of a point (x,y) in the plane is given by the expression x^2+ y^2 - 4x +

    asked by Trish Goal
  94. calculus

    f(x)=x2(x−24). So f is decreasing (and f′ is negative) on the interval (0,a) for a= ?

    asked by spud
  95. Math

    Which is an integer? A. 23 B. 1/4 C. Square root 27 D. 3.402538 Is the answer A? Thanks

    asked by happy
  96. chemistry

    A co-op student designed an experiment to collect hydrogen gas by reacting iron with a hydrochloric acid (HCl) solution. The student’s co-op supervisor suggested that aluminum can also be included to generate hydrogen gas: Fe + 2 HCl → 2 FeCl2 + H2 2

    asked by Brooke
  97. Physics

    A bullet is fired from a rifle that is held 2.5 m above the ground in a horizontal position. The initial speed of the bullet is 1450 m/s. Find: (a) the time it takes for the bullet to strike the ground and (b) the horizontal distance traveled by the

    asked by Matt
  98. Materials Science

    A 3-point bending test is performed on a simply supported beam of length L=4m and of rectangular cross-section, with width b and height h. For a central load of 10kN, draw the bending moment and shear force diagrams for the beam. Then answer the following

    asked by qwerty
  99. Materials Science

    A hollow cylinder with outer radius r0 and inner radius ri is loaded by a uniformly distributed load q across its length L. The beam is supported by a roller at its left end and a pin L5 from its right end. What is the maximum bending moment in the beam?

    asked by qwerty
  100. physics

    A golfer hits a shot to a green that is elevated 3.10 m above the point where the ball is struck. The ball leaves the club at a speed of 19.4 m/s at an angle of 33.0˚ above the horizontal. It rises to its maximum height and then falls down to the green.

    asked by Tami
  101. calculus

    f(x)= 3+4xe^{-5x}complete the sentences concerning the function a) the function f is decresing on the iterval...... b) the function f is increacing on the interval c) the function f is concave down on the interval d) the function f is concave up on the

    asked by RAJ
  102. statistics

    Scores on a national writing exam are approximately normally distributed, with a mean of 490 and a standard deviation of 20. Consider random samples of size 25 from the population of test takers. describe the sampling distribution of a sample mean. shape

    asked by ivan
  103. Last ratio/equation

    There are 10 men to 12 women and 10 women to 15 children. What is the ratio of men to children then!?

    asked by Circles
  104. calculus

    2) Let g(s)= t(4−t)^1/2 on the interval [0,2]. Find the absolute maximum and absolute minimum of g(t) on this interval. Enter DNE if the absolute maximum or minimum does not exist. The absolute max occurs at t= . The absolute min occurs at t=

    asked by spud
  105. Physics/ Biomechanics

    Compare the vertical jump heights obtained using the vertical velocity at take off and half the flight time. Which one do you think is more accurate in assessing a vertical jump performance? - my vertical jump height using vertical velocity at take off =

    asked by Anonymous
  106. calculus

    ind the point(s) on the cone z^2 = x^{2}+3y^{2} that are closest to the point (-1,-7,0)

    asked by RAj
  107. Help- Calulus

    A. If the focal length of the convex lens is supposed to be 5 cm, and if the image is formed 7 cm from the lens, find the distance, p, from the lens to the object. (It’s not necessary to simplify your answer.) Equation: 1/p + 1/q = 1/f

    asked by Mary
  108. Trigonometry

    From a point 35 m from a building and 2 m above the ground , the angle of elevation of the top of the building is observed to be 60° what the height of the building?

    asked by junmark777
  109. Physics

    A golfer hits a shot to a green that is elevated 3.10 m above the point where the ball is struck. The ball leaves the club at a speed of 19.4 m/s at an angle of 33.0˚ above the horizontal. It rises to its maximum height and then falls down to the green.

    asked by Tami
  110. physics

    Find the height of a hot air balloon if an object which falls from it covers 19% of the height in the last second of its fall.

    asked by Amjid
  111. mathematics

    what is algerdra

    asked by james
  112. Physics

    A mass of 14 kg is moving at a speed of 39 m/s at the bottom of incline which is inclined at an angle of 51.6 degrees. The incline has friction and the coefficient of kinetic friction is 0.6. The mass travels up the incline and stops due to both gravity

    asked by Kimmy
  113. Math

    Find the limit as h approaches 0 for ln(1+h)/h

    asked by Eiban
  114. Thermodynamics

    Consider 2 kg of an ideal gas (R=300 J/(kg.K) and Cp=1000 J/(kgK)) contained in a piston cylinder arrangement. The cylinder has a small valve at the end opposite to the piston.The cylinder walls are not adiabatic and allow heat transfer. The initial

    asked by Phy
  115. Scientific notation. PLZ HELP!

    Express in scientific notation. Choose the answer with the proper number of significant figures. (3 x 104) (4 x 1023) = _____ 1227 12 x 1027 10 x 1027 1 x 1028

    asked by isaac clarke
  116. calculus

    6) The function f(x)=4x3−18x2−480x−2 is decreasing on the interval ? Enter your answer using the interval notation for open intervals. It is increasing on the interval(s) ? The function has a local maximum at ?

    asked by spud
  117. Math

    A theatre company allows a group of 10 people to buy theatre tickets at a price of $28 per person. For each person in excess of 10, the price is decreased by $2 per person for everyone down to a minimum of $10 per person. What number of people will produce

    asked by Mathgirl730
  118. Precalc (domain and range)

    Domain l(x) is -12 less than or equal to x less than equal to 12 and it's range is 0 less than or equal to l(x) less than equal to 3 (b) What are the domain and range of l(1/5x) Enter the exact answer Domain Range

    asked by Taylor
  119. Chemistry

    Ho w
much 
water
 would 
you 
need 
to
 add
 to

500
mL
 of 
a 
0.3
M
 calcium
 nitrate 
solution
 to 
make the
 solution
 0.1
M? A.

1.0
L B.

0.50
L C.

1.5
L D.

0.25
L

    asked by Luis
  120. trigonometry

    Two stations A and B are 2,000m apart. When an airplane was directly above A, an observer at B found that the angle of elevation of the airplane is 60° . How far is the plane from the station B??

    asked by junmark777
  121. math

    Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?

    asked by anonymous
  122. Government

    U.S Senators are elected A:From the most popular districts of the state. B:through political backroom deals rather than by the electorate C:From the whole state rather than from individually defined districts D:from a handful of carefully picked districts

    asked by keona smith
  123. Thermodynamics

    Steam in a cylinder-piston arrangement expands from an initial condition of 5 bar, 80% dry to a final state of 2 bar, dry saturated steam. The initial volume of steam is 0.8 m3. The process of expansion can be represented by a straight line on the

    asked by Phy
  124. Math

    1. Find the sum of the first five terms of the sequence 2/3, 2, 6, 18, ..... My answer is 242. Am I right? 2. Which of these two sequences form a geometric sequence: 2x, 4x-2, 6x-4, ..... OR x+1, 2x+2, 5x+1, .....? Find the value/s of x and what is the

    asked by Brianna
  125. science

    how fast is mach 1 ?

    asked by kenneth
  126. computer literacy

    A computer worm is most likely to attack

    asked by Anonymous
  127. Math

    why would I have uarrived at square root 2 over 2 in this question Chang is participating in a charity bicycle road race. The route starts at Centreville and travels east for 13 km to Eastdale. He then makes a 135° turn and heads northwest for another 18

    asked by Alex
  128. physics

    A block of mass m is pushed along a horizontal table by a force F= 70 N a an angle 55 degrees with the horizontal. The coefficient of kinetic friction is 0.3 Write Newtons second law using vectors. Write newtons second law using x scalar components

    asked by Chad
  129. Math

    1.What is the smallest possible value of 2x^4+(8/x^4) over all real nonzero values of x? To find the minimum value you have to factor it, but I am not sure how to factor this. 2.What is the maximum value of c such that the graph of the parabola y=1/3x^2

    asked by Trish Goal
  130. science

    can you tell me the relationship between water treatment and geckos

    asked by mark
  131. Algebra

    Describe how projections play a role in the least squares solution?

    asked by RAJ
  132. Chemistry

    If 4.7M SrLi2 solution is diluted to 45L, what is the molarity of the diluted solution?

    asked by Jake
  133. math

    Solve the initial value problem 3(y-1)^2 = y'', with y(0) = 3 and y'(0) = 4. Assume y does not equal 1.

    asked by RAJ
  134. Math

    Which of these numbers is classified as a rational number? A. Square root 17 B. Square root 23 C. Square root 9 D. Square root 2 Is the answer C? Thanks

    asked by happy
  135. physics

    A block of mass m1 = 2.4 kg slides along a frictionless table with a speed of 8 m/s. Directly in front of it, and moving in the same direction, is a block of mass m2 = 5.0 kg moving at 2.8 m/s. A massless spring with spring constant k = 1140 N/m is

    asked by steven
  136. physics laws of motion

    a block of mass 300kg is set into motion on a frictionless horizantal surface with help of frictionless pulley and a rope system.what horizantal force F should be applied to produce an acceleration of 1m/s in block

    asked by shail
  137. Precalculus

    (sinx-cosx+1)/(sinx+cosx-1)=(sinx+1)/(cosx)

    asked by Anonymous
  138. American Government

    the filibuster is a procedure used only in ?

    asked by keona smith
  139. Math

    1. Find the sum of the sequence: 32, -16, 8, -4, 2, .... My answer is 64/3. Am I correct?

    asked by Brianna
  140. Algebra/Pre-calculus (Quadratic Equations)

    A theatre company allows a group of 10 people to buy theatre tickets at a price of $28 per person. For each person in excess of 10, the price is decreased by $2 per person for everyone down to a minimum of $10 per person. What number of people will produce

    asked by Mathgirl730
  141. psy 103

    Dubois claims that after the civil war, the courts and police forces led to the following outcomes

    asked by Anonymous
  142. English

    Other words to describe "minors"

    asked by Amy
  143. English

    Did I do alright fixing the following sentence? It was a run-on. (these run-0n are so tricky to me) Lawsuits seem to be getting out of hand; one little girl sued the Crack jack company, because the prize was missing from her box.

    asked by Karen
  144. physics

    A mass of 3.25 kg is attached to the end of a spring that is stretched 20 cm by a force of 14 N. It is set in motion with an initial position x_0 = 0 and initial velocity (in m/s) v_0 = -11. Find the amplitude, period, and frequency of the resulting

    asked by RAj
  145. calculus

    Given g(x) = (x + cosx)/(e^x - 2x^3 + 5). Find g'(x). Do not need to simplify.

    asked by RAJ
  146. Pre-Calc/Trig...

    Help me please. Simplify 1. √-36 2. -√-625

    asked by Anonymous
  147. Pre-Calc/Trig...

    Helpp needed, this is sort of confusing me. Describe the nature of the roots for this equation. 2x^2-x+1=0 A. Two real, rational roots B. Two real, irrational roots C. One real, double root D. Two complex roots

    asked by Anonymous
  148. Materials Science

    A 4-point bending test is performed on the same beam, with symmetric loads of 5kN separated by 2m. Draw the bending moment and shear force diagrams for the beam. Then answer the following questions about the shear force V and bending moment M. What is the

    asked by qwerty
  149. Persuasive Essay Topics

    What are some persuasive essay topics about schools or communities that people disagree with?

    asked by Victoria
  150. Calc

    Describe e y = 6(g(x) - 9) as the result of first applying a stretch or compression and then applying a shift to g. First a ____________, by a factor of 6 __________ and then a ____________ by ________ units

    asked by Steve
  151. Algebra

    From a survey of 100 college students, a marketing research company found that 45 students own ipods, 45 owned cars and 25 owned both cars and ipods. How man students owned either a car or an ipod (but not both) and how many do not own either a car or an

    asked by Sandy
  152. Math

    I just wanted to double check that I am correct. 1.Find the zeros for the function: f(x)= 4(x-3)(x+2)(x-4)^2 Zeros are: 3,-2, 4(multiplicity 2) 2.Find the zeros for the function: f(x)= x^3-9x Zeros are: 0, 3, -3

    asked by kim
  153. Chemistry 101

    Based on the masses of CaCl2 and Na3PO4 you determine from the periodic table,what mass combining ratio would you predict?

    asked by Kayla
  154. algebra

    A jar contains $34.75 in quarters and dollar coins. If the number quarters is three more than four times the number of dollars, determine the number of each type of coin.

    asked by cool man
  155. Geography

    What are the warning signs of a tsunami?

    asked by Phoebe
  156. MATH HELP PLEASE

    Which of these numbers can be classified as both real and irrational? a. 5.85 b. 63.4 c. square root 21 d. square root 36 Is the answer D?

    asked by TGIF
  157. calculus

    can you find a sequence{an} such that {an} diverges, and the series of an converges? justify

    asked by SIRI
  158. Math

    Solve P=P(base 0)e^kt Solve for t? I have no idea how to solve this

    asked by Eiban
  159. math

    a car goes to 10km due south,then it turns west and goes 5 km.Now it turns back and goes 10km due north.Where is the car from starting point?

    asked by lucifer
  160. Physics

    You are making a trip in a space shuttle, and your friend Jimmy is in another space shuttle. He shares the same circular orbit with you, 370 km above earth. However, he is 21 km ahead of you. A) How long will it take you to catch up with your friend if you

    asked by Ashlea
  161. equations

    a : b = 5 : 1 and b : c = 2 : 3, then a : c =? I really need help on both

    asked by circles
  162. physics

    a foot ball is thrown upward with an angle of 30 degree with respect to the horizantal .to throw a 40meter pass what must be the intial speed of the ball?

    asked by ayan
  163. science

    Would somebody be so kind and help me with my homework,please?Explain, how a substance will dissolve differently if the temperature changes. Thank you for help.

    asked by Damian
  164. MATH HELP PLEASE

    Which statment is false? A. The number zero is a rational number. B. Some irrational numbers are also rational numbers. C. Every irrational number is a real number D. Every integer is a rational number Is the answer C?

    asked by anonymous
  165. medical billing

    What code(s) is/are assigned for a patient admitted for an azathioprine 1 drug- induced aplastic anemia (initial encounter)? The patient has peripheral neuropathy of multiple joints of the lower extremities secondary to severe rheumatoid arthritis

    asked by virginia
  166. MATH HELP

    Domain l(x) is -12 less than or equal to x less than equal to 12 and it's range is 0 less than or equal to l(x) less than equal to 3 (b) What are the domain and range of l(1/5x) Enter the exact answer Domain Range Answer this Q

    asked by Saday
  167. physics

    What would it mean if mu is greater than one?

    asked by confused
  168. SS

    Where is the Tree Stratum Zone of deciduous forests?

    asked by Anonymous
  169. Math

    Please help me! I know I am not showing my work but I don't even know how to solve these! Please help me! Tell whether the given equation has the ordered pair as a solution. 1. y = 6x; (3,16) 2. y = -4x; (-2,8) 3. y = x - 3/4; (2,1 1/4) PLease help me

    asked by Meredith
  170. Calculus

    1. If the tangent line to y=f(x) at (4,3) passed through the point (0,2), find f(4) and f'(4). My answer: f(4)=3 f'(4)=1/4

    asked by Anonymous
  171. Human Development

    Why is it not ethical if a researcher researches on some people and the people get affected with for example, trouble in speech. What are the two reasons as to why this is not ethical?

    asked by Priya
  172. Calculus

    what is the limit of arcsinx as x approaches 1 from the left

    asked by Ginger
  173. biology

    Part A. Making Visual Connections with the Textbook (5 points) You can answer these in a Word document, indicating the question number followed by your answer. Below is the Absorption Spectrum of Photosynthesis. As your textbook explains, plants have a

    asked by Anonymous
  174. Math

    Hi, I need help with figuring out how I calculated this question because my math teacher is asking "But my question is how do you get √2/2 How did you come up with that calculation?" Here's the question and my work for it: Chang is participating in a

    asked by Alex
  175. Math

    [R] = [4/5 -3/5] and [S] = [-3/5 4/5] [-3/5 -4/5] and [4/5 3/5] are reflection matrices. Calculate [R·S] and verify that it can be identified as the matrix of rotation. Determine the angle of the rotation.

    asked by Wes
  176. english

    Will you please give some points on adventure? I need to make a speech.

    asked by sadie
  177. health/stats

    can cholesterol follow a normal distribution exactly? why or why not?

    asked by rebekah
  178. equation

    if 3a = 5b, what is a:b?

    asked by circles
  179. English

    How do writers correctly punctuate sentences containing the documentation? Where would the quotations and parenthesis go? Please answer both

    asked by Amy
  180. SAVE ME ( MATH)

    function p(t) has a domain of 1 less than or equal to t less than or equal to 12 range of -40 < p less than or equal to 160 Find the domain and range for. Enter the exact answers A) P(1/4t+4) B) -1/10p(2t)+46

    asked by Randy
  181. English

    1. Why would an author use other words like adolescent, teen, or young people just to describe minor? 2. How do you correctly punctuate sentences containing documented evidence? 3. From this thesis statement , what topic can you form out of it: Some people

    asked by Amy
  182. medical billing

    what is ms-drg

    asked by virginia
  183. maths

    how to show the working out for 1.3*1.8

    asked by kirsty
  184. math

    Find the distance between the point and the plane. (2, 5, 3) 3x + 2y – 3z = –6

    asked by Morgan
  185. Physic

    I need someone that can help with a formula any smart people. Law of universal gravitation f=g m 1 x m2 /r^2 needs to k ow what g is? Help?

    asked by Christian
  186. physics

    A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05 mm. If each burst contains an energy of 4.60 J, what is the length in space of each pulse? What is the average energy per unit volume (the energy density) in one of these pulses?

    asked by Ashton
  187. chem

    if the delta h for the reaction A + 2B -> C is 150 kj, delta h for 6A + 12B -> 6C is what?

    asked by bekah
  188. research help

    I need help with some research topics for a paper?

    asked by Sara
  189. English

    1. Across 3 starts with 'n.' 2. 3 Across starts with 'n.' ----------------------- In a crossword puzzle, which one is correct?

    asked by rfvv
  190. algebra 1

    4=18-3w 18 - 3w=4 +18 +18 -3w=22 7 1/3

    asked by Anonymous
  191. government

    cloture is

    asked by keona smith
  192. SS

    Is the Okanagan in BC a valley?

    asked by Anonymous
  193. SS

    Is agriculture widespread in coniferous forest regions?

    asked by Anonymous
  194. algebra 1

    4=18-3w 18 - 3w=4 +18 +18 -3w=22 7 1/3

    asked by Anonymous