1. calculus helpppp!

    a 20m ladder rests vertically against the side of a barn. a pig that has been hitched to the ladder starts to pull the base of the ladder away from the wall at a constant rate of 40 cm per second. find the rate of change of the height of the top of the

    asked by chris on December 8, 2008
  2. AP Calculus

    A function g(x) has the following characteristics: 1) It is rational with a quadratic polynomial in both the numerator and the denominator. 2) It has a removable discontinuity at x=1 and the limg(x) as x approaches 1 is -1/9 3) The graph of g(x) has a

    asked by Jackie on October 3, 2010
  3. physics

    A detective is investigating a scene of an accident. He measures the length of an automobile's skid marks to find out how fast the automobile was going at the very beginning of the skid. Express In terms of V ( speed), L ( length) and any other suitable

    asked by Riley on June 10, 2017
  4. Math: Algebra II

    You start 50 miles east of Pittsburgh and drive east at a constant speed of 65 miles per hour. (Assume that the road is straight and permits you to do this.) Find a formula for d, your distance from Pittsburgh, as a function of t, the number of hours of

    asked by Lucy Ripply on October 5, 2013
  5. Calc

    Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = y i − x j + z2 k S is the helicoid

    asked by Anon on November 23, 2016
  6. MECHANICS

    A string of length l carries a small pulley C from which is suspended a load W. The string hangs between two vertical walls which are at distance d apart.The end A is higher than end B by height h.find position of equilibrium defined by angle X. X is angle

    asked by ACD on November 23, 2010
  7. physics

    A uniform rod 8m long weighing 5kg is supported horizontally by 2 vertical parallel strings at P and Q and at distances of 2m and 6m from one end. Weights of 1kg, 1.5 kg, and 2kg are attatched at distances of 1m, 5m, and 7m respectively from the same end.

    asked by tj on October 16, 2012
  8. Math

    A man traveled a distance of 22km in one hour,partly in a car at a speed of 30km/hr and partly on a motorcycle at 18km/hr.find the distance travelled by him in the car. Ans is 10km plz gve me fst sltn

    asked by Simran kaur on November 18, 2012
  9. algebra

    find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. $70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is

    asked by jose on March 7, 2017
  10. Math

    Find the mode of the data set 48 52 29 38 29 36 42 29 Charlotte read five books with the following number of pages 185,212,146,165,and 197. What was the mean number of pages in the books 181 Enochs scores on seven tests were 85 68 91 75 82 79 and 93 What

    asked by Jerald on April 2, 2013
  11. math

    use transformation to rescue animals, start out at the x. the animal is at the bull's eye (-4,2) translate 1 unit rotate 90 degree counterclockwise about the origin rotate 180 degree translate 3 units down reflect in the y-axis find the right order

    asked by zane on November 15, 2012
  12. math

    a rectangular prism has a width of 92ft. and a volume of 240ft^3. Find the volume of a similar prism with a width of 23ft. Round to the nearest tenth if necessary. a)3.8ft^3 b)60ft.^3 c)15ft.^3 d)10.4ft.^3 I am totally cinfused by this. Can somebody please

    asked by Shannon on August 30, 2008
  13. physics

    a 70 kg box is pulled by a rope that exerts a 400 N force at angle of 30 degrees to the horizontal the leading coefficient of kinetic friction id 0.50. draw a diagram. draw a free body diagram . find the acceleration of the box.

    asked by tionne on November 13, 2012
  14. Chemistry

    An atmospheric scientist interested in how NO is converted into NO2 in urban atmospheres carries out two experiments to measure the rate of this reaction. The data are tabulated below. A: [NO]0 = 9.63 × 10-1 M, [O2]0 = 4.1 × 10-4 M t(s)

    asked by Jesse on February 18, 2016
  15. physics

    The magnetic field shown in the figure decreases from 1.0 T to 0.4 T in 1.2 s. A 6.0 cm diameter loop with a resistance of 0.010 W is perpendicular to the field. a. Find the average emf induced in the coil during this time. b. What is the size and

    asked by kait on September 17, 2011
  16. trig

    Given the radius of a wheel is 12inches and the angular speed is measured to be 3pie/4 radiant per second, find the linear speed of the piece of gum stuck to the where. Give both an exact answer. And a decimal answer rounded to 4 decimal places.

    asked by ALISON on September 17, 2011
  17. Math

    Okay, really I just need to know if this is going to be division, multiplication, subtraction or addition. Damon's town received 12.3 inches of rain during a 24-hour period. First, estimate the amount of rain that fell per hour. Then, find the exact amount

    asked by Barry on January 10, 2019
  18. Algebra ASAP

    Pls help me out, I really need help. A puppy weighs 0.85 lb at birth, and each week he gains 29% in weight. Let an be his weight in pounds at the end of his nth week of life. (a) Find a formula for an. an = (b) How much does the puppy weigh when he is six

    asked by hey on August 15, 2015
  19. math

    Land area of US states Stem-Leaf

    asked by nfKBJadk on April 21, 2019
  20. Chemistry

    When 1.560 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.76 ∘C to 38.31 ∘C. Find ΔErxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate

    asked by just need help on April 19, 2019
  21. physics

    a fis is suspended from a 6m uniform beam supported by a cable and attached by a pivot to the ground. the beam has a mass of 20 kg and the cable can withstand a maximum tension of 10000 N. find masimum wright of a fish that can be supported by this system

    asked by cinthia on May 14, 2011
  22. english

    Hi, I need help finding these 3 questions please: I couldn't find them, thanks!!(1) what are the ethical concerns of embryonic stem cell research? (2) what are the benefits of related to adult stem cell reseach? (3) who are the voices in our society who

    asked by jessica on September 18, 2011
  23. Differential Equations

    Find the general solution of the given differential equation. x dy/dx − y = x^2 sin x I have solved to: y = -x cos(x) + cx The second part of the question is to give the largest interval over which the general solution is defined. I would think it would

    asked by Jefferson on February 1, 2018
  24. Middle Chinese

    Which has become an art form in the Mandarin speaking world? A.Drinking tea B.Making congee C.Making sticky rice in a bamboo or reed leaf. I think it is drinking tea. I can't find it in my lesson, I searched this site, I even goggled it, nothing.

    asked by Hi!!! on December 20, 2017
  25. Physics

    A racecar driver in an 825-kg car accelerates from rest to a velocity of 21.5 m/s in 0.55 s. What is the net force acting on the car? I found out using A=v/t that the horizontal acceleration is 39.1 m/s^2. My problem now is this... Is the net force just

    asked by Hannah on June 20, 2009
  26. math

    Dana takes a sheet of paper, cuts a 120-degree circular sector from it, then rolls it up and tapes the straight edges together to form a cone. Given that the sector radius is 12 cm, find the height and volume of this paper cone.

    asked by hodna on April 11, 2010
  27. English

    What does the aunt in "The StoryTeller" find improper about the bachelor's story? A. It makes fun of Bertha's goodness. B.It has too many fantasy elements. C.It unrealistically suggests that virtue is always rewarded. D. The bachelor tells it without

    asked by Caitlyn on September 28, 2015
  28. Math 7th

    Mrs. Jones bought 3 1/2 pounds of ajita meat at $2.50 per pound, 1 3/4 pounds of pinto beans and a package of tortillas for $2.23. She gave the cashier 20.00. What other information is needed to find the correct change Mrs.Jones will receive?

    asked by Danny on December 7, 2010
  29. Math

    A track of mass 1000 kg travelling on a straight level road accelerates from a speed of 10 m/s to a speed of 30 m/s in 12 seconds. Given that the engine of the track exerts a constant pull of magnitude P N and that there is a constant resistance to motion

    asked by Samuel on April 17, 2013
  30. Math

    A plane flying at an altitude of 10,000 feet begins descending when the end of the runway is 50,000 feet from a point on the ground directly below the plane. Find the measure of the angle of descent (depression) to the nearest degree.

    asked by Austin on October 29, 2012
  31. Calculus check

    Can someone check my answers: 1) Use geometry to evaluate 6 int 2 (x) dx where f(x) = { |x|, -2

    asked by Sydney on July 16, 2018
  32. Chemistry

    Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO2H, in enough water to make 4.00*10^2 mL of solution and then titrate the solution with 0.138 M NaOH. C6H5CO2H(aq) + OH-(aq) C6H5CO2-(aq) + H2O(l) Find concentration of Na+ at equivalence

    asked by john on April 21, 2013
  33. life oriantation

    name two institutions/community organiszations that are involved in supporting or giving redress to this disasters(teenage pregnancy).explain how these organizations are involved in providing a safe and healthy enviroment.(suggestion:find out about ngo's

    asked by edgar on July 19, 2011
  34. physics

    A motorist A leaves a small town and drives East at 28 ms-1 . A second motorist B is driving South towards the same town at 23 ms-1 . Draw a diagram and find the velocity of motorist B relative to motorist A? ( VB REL A ) is this just phythagoras and

    asked by jp on August 22, 2014
  35. Physics

    A football player runs the pattern given in the drawing by the three displacement vectors A, B, and C. The magnitudes of these vectors are A = 5 m, B = 13.0 m, and C = 16.0 m. Using the component method, find the magnitude and direction è of the resultant

    asked by yoyoma on August 18, 2010
  36. 8th grade math asp help

    Plz help me ASPWrite a sequence of transformations that maps quadrilateral ABCD onto quadrilateral A" B"C"D" in the picture below. like talk about it Find the area for the circle ( use 3.15 for pi). show your work. round to the nearest tenth. and the next

    asked by supergirl on March 13, 2017
  37. Physics

    I have a blue liquid with density 1040 +- 20 yellow liquid 1190 +- 60, (dark)red liquid 1170 +- 30 pink/light red liquid 1100 +- 60 my task is to find out what liquids are they all of the densities were calculated in class(we were doing an experiment).

    asked by Ana on November 6, 2014
  38. Math

    Suppose that 600 meters of fencing are used to enclose a corral in the shape of a rectangle on three sides, and then a semicircle on the fourth side (The diameter of the semicircle is equal to the width of the rectangle). Find the dimensions of the corral

    asked by Alex on March 28, 2012
  39. Calculus (Area Between Curves)

    Find the area of the region IN THE FIRST QUADRANT (upper right quadrant) bounded by the curves y=sin(x)cos(x)^2, y=2xcos(x^2) and y=4-4x. You get: a.)1.8467 b.) 0.16165 c.) 0.36974 d.) 1.7281 e.) 0.37859 Based on my calculations, I would say that the

    asked by Mishaka on February 29, 2012
  40. Physics,chemistry,maths

    On turning a corner a car drIver driving at 36 km per hour find a child on the road 55 metre ahead.he immediately applies brakes so as stop within 5 metre. Calculate the retardation produced and the time taken by the car to stop.

    asked by Anamika roy on August 3, 2017
  41. physics

    A plane drops a package of emergency rations to a stranded party of explorers the plane is traveling horizontally at 40m/s at a height of 100m from the ground find where the package strikes the ground ralative to the spot where it was dropped

    asked by job on June 9, 2011
  42. physics

    Two horse pull horizontally on ropes attached to a stump. The two forces f1 and f2 that they apply to the stump are such that the net(RESULTANT) force R has a magnitude equal to that of F and makes an angle of 90 with F1. Let F1=1300 N and R =1300 N also.

    asked by evelyn on March 4, 2012
  43. Mathematics

    The price for an adult carnival ticket is 6.5 more than a carnival ticket for a child. Bob takes his son to the carnival. He buys cotton candy for $10.25, and spends $55. Write and solve a linear equation to find the prices for each of their carnival

    asked by Austin on January 23, 2018
  44. math help

    The price for an adult carnival ticket is 6.5 more than a carnival ticket for a child. Bob takes his son to the carnival. He buys cotton candy for $10.25, and spends $55. Write and solve a linear equation to find the prices for each of their carnival

    asked by kora on January 23, 2018
  45. physics

    the coefficients of static and kinetic friction for stone on wood are, respectively, 0.5 and 0.4. if a 150 kg stone statue is pushed with just enough force to start moving across a wooden floor and the same force continues to act afterward. find the

    asked by tom on November 7, 2012
  46. algebra

    One health insurance policy pays for people claims by multiplying the claim amount by 0,8 and then subtracting$500. Define a variable and write an equation for this situation. Find the claim amount for an insurance payment of $4650

    asked by lisa on August 29, 2011
  47. Physics

    a ball is tossed from an upper story window of a building given an initial velocity of 8m/s at an angle of 20 below the horizontal.it strikes the ground 2seconds later. how far horizontaly from the base of the building does it strike the ground? find the

    asked by Manu on November 1, 2015
  48. statistical reasoning

    One hundred people are selected at random and tested for colorblindness to determine whether gender and colorblindness are independent. The following counts were observed. Colorblind Not Colorblind Total Male 8 52 60 Female 2 38 40 Total 10 90 100 Find the

    asked by Anonymous on April 14, 2017
  49. physics

    A car moves with speed v on a horizontal circular track of radius R. The height of the car's center of mass is h, and the separation between the inner and outer wheels is d. The road is dry, and the car does not skid. Find the maximum speed the car can

    asked by Mischa on November 20, 2008
  50. Math

    James sends text messages from his cell phone. The chart below shows how many text messages he sent each day. Monday Tuesday Wednesday Thursday 20 25 36 29 What is the median of this set of data? A.22.5 B.27 C.27.5 D.29 I know how to find median but this

    asked by Can some explain how to do this on December 8, 2017
  51. math

    a company will need $30.000 in 7 years for a new addition. To meat this goal the company deposits money in an account today that pays 7% annual interest compounded quarterly. find the amount that should be invested to total $30.000 in 7 years?

    asked by Michelle on November 28, 2014
  52. help

    An advertising blimp hovers over a stadium at an altitude of 125 m. The pilot sights a tennis court at an 8o angle of depression. To the nearest meter, find the ground distance in a straight line between the stadium and the tennis court.

    asked by Anonymous on May 29, 2014
  53. articles....

    Where do i find an article on 'caring and sharing' http://www.google.com/search?q=caring+sharing&start=0&ie=utf-8&oe=utf-8&client=firefox-a&rls=org.mozilla:en-US:official I'd stick with choices from the first ten. =)

    asked by Mave Rick on October 13, 2006
  54. Physics

    A pitcher throws horizontally a fast ball at 156 km/h toward the home plate, which is 18.2 m away. Neglecting air resistance (not a good idea if you are the batter), find how far the ball drops because of gravity by the time it reaches the home plate.

    asked by Neal parikh on June 4, 2016
  55. precal

    A contractor needs to know the height of a building to estimate the cost of a job. From a point 84 feet away from the base of the building, the angle of elevation to the top of the building is found to be 44 degrees and 23'. Find the height of the

    asked by Antonia on October 8, 2011
  56. AP Physics

    A 35kg child sits in a swing supported by 2 chains, each 3.7 m long. If the tension in each chain at the lowest point is 274 N find the child's speed at the lowest point. (Neglect the mass of the seat). I'm not sure what equations to use to set this up

    asked by Chevy on October 27, 2015
  57. Physics

    Plus 10 for each correct response and no penalty for incorrect answers. The length of a string is 996 cm. It is held fixed at each end. The string vibrates in six sections; i.e., the string has six antinodes, and the string vibrates at 190 Hz. find the

    asked by Ashlynne on October 11, 2011
  58. Law of cosines

    A tree on a hillside casts a shadow 215 ft down the hill. If the angle of inclination of the hillside is 22 degree to the horizontal and the angle of elevation of the sun is 52 degreess, find the height of the tree. TIA sorry this is law of sines. sorry

    asked by Jen on March 27, 2007
  59. Statistics

    You draw two cards from a standard deck of 52 cards and replace the first one before drawing the second. Find the probability of drawing a 4 for the first card and a 9 for the second card. Round your answer to the nearest thousandth. 0.006 0.039 0.019

    asked by Jacob on June 15, 2010
  60. probability

    A company ships computer components in boxes that contain 20 items. Assume that the probability of a defective computer component is 0.2. Find the probability that the first defect is found in the seventh component tested. Round your answer to four decimal

    asked by GIBSON on November 27, 2013
  61. Algebra 2

    Use technology or a z-distribution table to find the indicated area. The weights of grapefruits in a bin are normally distributed with a mean of 261 grams and a standard deviation of 9.4 grams. Approximately 20% of the grapefruits weigh less than which

    asked by student on March 20, 2019
  62. physics

    A 1.00-kg beaker containing 2.29 kg of oil (density = 916 kg/m3) rests on a scale. A 2.33-kg block of iron is suspended from a spring scale and is completely submerged in the oil (see figure below). Find the equilibrium readings of both scales. top scale N

    asked by anna on April 11, 2016
  63. geography

    for my homework i need to find out about broughton airbus factory.i need to write a report and a paragraph about these questions:- where it is what alterations have been made to the factory how it helps the airbus industry how the wings are transported to

    asked by samantha on May 22, 2008
  64. physics

    A 1.00-kg beaker containing 2.29 kg of oil (density = 916 kg/m3) rests on a scale. A 2.33-kg block of iron is suspended from a spring scale and is completely submerged in the oil (see figure below). Find the equilibrium readings of both scales. top scale N

    asked by anna on April 10, 2016
  65. Physics

    A 52 kg skier is at the top of a slope, as in the figure. At the initial point A, the skier is 12.4 m vertically above the final point B. The acceleration of gravity is 9.81 m/s2 .Find the difference in potential energy if the zero level is midway down the

    asked by Sangita on January 25, 2011
  66. physics

    In a water balloon toss a contestant throws her balloon with a speed of 4.84 m/s at an angle of 16.5 degrees above the horizontal. Find the maximum height, the time of flight and the range of the balloon assuming her partner catches the balloon at the same

    asked by becky on February 6, 2012
  67. Molecular Formula

    How do you work out the molecular formula? Generally you convert grams to mols, then find the ratio of the atoms to reach other. But this is all generality. Why don't you post the entire problem, tell us what you know how to do and what you don't

    asked by L0bster_quadrille on February 3, 2007
  68. physics

    Find the coefficient of kinetic friction between a 4.3-kg block and the horizontal surface on which it rests if an 80 Newton/meter spring must be stretched by 2.7 cm to pull the block with constant speed. Assume the spring pulls in a direction 13 degree

    asked by emily on January 19, 2011
  69. physics

    A satellite is in a circular earth orbit that has a radius of 6.63E+6 m. A model airplane is flying on a 16.4 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

    asked by Anonymous on February 12, 2012
  70. Physics

    The wire in the drawing carries a current of 14 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 33 A. Use Ampere's law to find the magnitude of the magnetic field at a distance of r = 1.0 m

    asked by Mareena on February 12, 2012
  71. physics

    A plane progressive wave on a water surface is given by the equation y=2sin2pi(100t-x/30) where x-is the distance covered in a time t, x, y and t are cm and second respectively. Find (i) the wavelength and frequency of the wave motion. (ii) the phase

    asked by Edwin on March 23, 2010
  72. Chemistry

    Hello, we recently did a lab in our chemistry class to analyze an Unknown amount Calcium Carbonate which was titrated with EDTA. Our titration results were: mass of the unknown CaCO3 was 0.172 g and the mL of EDTA added was 30.7. How do I find the percent

    asked by Anna on July 1, 2010
  73. Physics 2

    The wire in the figure below carries a current of 12 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 30 A. Use Ampère's law to find the magnitude of the magnetic field at a distance of r =

    asked by Anne on February 13, 2012
  74. Biology

    Im doing an experiment in Biology on a drug, but im not sure where I can find information on the drug Chantix. i also have a few general questions I was hoping you could help me with... 1. Why is it improtant to have as many subjects as possible in an

    asked by rainy on January 14, 2011
  75. Science - - Second Try

    I'll repost the question I posted about thirty five minutes ago. It's still unanswered. Hello. (= I can't find the answer to this question: What are the five major classes of Chordates? The following question is: Using the list made in the previous

    asked by Eve on January 12, 2008
  76. statistics

    a local content center reports that it has been experiencing a 15% rate of no shows on advanced reservations. Among 150 advanced reservations find the probability that there will be fewer than 20 no shows round the standard deviation to three decimal to

    asked by Anonymous on March 26, 2015
  77. chem h/w

    i did a lab and i need to find out the melting point for lauric acid and lauric acid with another substance. the teacher told us to figure it out using excel. this is my graph. tinypic. com/view.php?pic=1605yev&s=7 can someone help me in figuring out the

    asked by RiChy on September 18, 2010
  78. physics

    1. a particle A of mass 150g lies at rest on a smooth horizontal surface. a second particle B of mass 100g is projected along the surface with a speed of u m.s and collides directly with A. on collision the masses coalesce and moves on with a sped of 4 m.s

    asked by janell on April 25, 2011
  79. physic/math

    What happens when ocean waves with (a) wavelength=10m and (b) wavelength=200m encounters a small island of width 100m. Discuss the amount of shelter you will find in each case by taking your small boat to the lee side of the island.

    asked by AAAA on February 9, 2012
  80. statistics

    a pizza shop owner wishes to find the 95% confidence interval of the true mean cost of a large plain pizza. how large should the sample be if she wishes to be accurate to within $0.15? a previous study showed that the standard deviation of the price was

    asked by paula on March 17, 2013
  81. english( racism)

    I am writing about racism in los angeles, and I have to use newspaper articles. I wanted to show that African earn less money than whites. Also their are more African americans behind prision bars. however, I cannot find anything along these lines. It has

    asked by lenny on May 8, 2009
  82. Physics I (Classical)

    A kayaker needs to paddle north across a 85-m-wide harbor. The tide is going out, creating a tidal current that flows to the east at 2.0 m/s. The kayaker can paddle with a speed of 3.0 m/s. Find the angle West of North he needs to travel and the time it

    asked by Victoria on June 7, 2016
  83. math

    Use Euclid's algorithm to find a multiplicative inverse of 15 mod 88, hence solve the linear congruence 15x=20(mod 88) So far I have: 88=5x15+13 15=1x13+2 Backwards substitution gives 15v+18w=1 1=15-1x13 =15-1(88-5x15) =15x15-1x88 now very stuck what to do

    asked by s17 on November 24, 2016
  84. MTH 157

    A company will need $50,000 in five years for a new addition.To meet this goal the company deposits the money in an account today that pays 4% annual interest compounded quarterly. Find the amount that should be invested to total $50,000 in 5 years. Thanks

    asked by Kim on July 31, 2015
  85. science

    A 3.5-cm tall object is placed 10.0 cm in front of a concave mirror having a focal length of 14.5 cm. Find the location position and height by drawing a ray diagram to scale. Verify your answer using the mirror and magnification equations. cm (location) cm

    asked by Maggie on March 26, 2014
  86. Physics-Help please...

    The graph give the acceleration a versus time t for a particle moving along an x axis. The a axis scale set by a=12 m/s^2. At t = -2s the particle's velocity is 10 m/s. What is its velocity at t = 6s. I know that I am supposed to used integrals to solve,

    asked by Belinda on October 1, 2011
  87. Health care Information System, Question 3

    From your own Internet research, to find a report card for one or more of your local hospitals. "Using Information" Please respond to the following: Create a very brief scenario (1-2 sentences) in which specific information should be collected. Determine

    asked by Anita on October 10, 2012
  88. Ag Science

    I have a HUGE project due for ag. It's on California and Hawaii. There are questions like "how many of miles of hiking trail is in the state?" and "how many big game species are in the state?" I am desperately searching all over google for answers to these

    asked by Taylor on March 2, 2008
  89. Math

    From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is not yellow. write your answer in simplest form. help please

    asked by BTS on May 26, 2017
  90. Chemistry

    The equilibrium constant for the reaction 2NO(g) + O2(g) 2NO2(g) is Kp=1.48x10^4 at 184C. Calculate Kp for 2NO2(g) 2NO(g) + O2(g). I know the equation is Kp=Kc(RT)x Delta n Kp is what we're solving for Kc= I can't seem to find. R=.0821 T=184+273 Delta n= 1

    asked by Anonymous on March 9, 2010
  91. algebra

    Mel Sturbridge needs $24,700 to remodel his home. Find the face value of a simple discount note that will provide the $24,700 in proceeds if he plans to repay the note in 180 days and the bank charges an 8% discount rate.

    asked by Felicia on August 21, 2012
  92. physics

    The International Space Station, launched in November 1998, makes 15.65 revolutions around the earth each day in a circular orbit. Apply Newton's second law to the space station and find its height (in kilometers) above the earth's surface.

    asked by andrea on February 23, 2011
  93. math

    A company has sales (measured in millions of dollars) of 50, 60, and 75 during the first three consecutive years. Find a quadratic function that fits these data, and use the result to predict the sales during the fourth year. Assume that the quadratic

    asked by bryant on May 31, 2010
  94. physics

    A dive bomber has a velocity of 235 m/s at an angle θ below the horizontal. When the altitude of the aircraft is 2.15 km, it releases a bomb, which subsequently hits a target on the ground. The magnitude of the displacement from the point of release of

    asked by eric on February 18, 2011
  95. Physics

    A rocket accelerates upward at 3m/sec2 for 60 seconds when it releases a booster. How long will it take the booster to reach the ground from the highest point and what is its velocity as it is striking the ground? I'm unsure how to find the time if time is

    asked by john on September 19, 2016
  96. Statistics

    A recent survey found that 70% of all adults over 50 wear glasses for driving. You randomly select 30 adults over 50, and ask if he or she wears glasses. Decide whether you can use the normal distribution to approximate the binomial distribution. If so,

    asked by Clifford on February 16, 2013
  97. math

    write the exponential function y=40e^0.06t in the form y=ab^t. find b accurate to 4 decimal palces. if t is measured in years, give the % annual growth or decay rate and the continuous % growth or decay rate per year.

    asked by Ariel on June 27, 2012
  98. physics

    A projectile is fired and lands t = 14 s later on the side of a hill, at a location 1400 m away horizontally and 420 m above its starting point. Find the projectile's initial horizontal velocity vx0 and initial vertical velocity vy0. Assume g = 10 m/s2.

    asked by Nathaniel on November 3, 2010
  99. Chemistry

    What is the pH of the solution created by combining 2.70 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted

    asked by Ashley on May 3, 2010
  100. physics

    A sailboat race course consists of four legs, defined by the displacement vectors , , , and , as the drawing indicates. The magnitudes of the first three vectors are A = 2.80 km, B = 4.70 km, and C = 4.50 km. The finish line of the course coincides with

    asked by Anonymous on June 17, 2014

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