1. PHYSICS

    A banked circular highway curve is designed for traffic moving at 60 km/h. The radius of the curve is 205 m. Traffic is moving along the highway at 40 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow
  2. Calculus help!

    f(x)=e^x for 0<x<2. Imagine that you have graphed this function in the x-y plane. For each value of x in the domain, erect a square above the curve perpendicular to the x-axis and parallel to the y-z plane where one side runs from the x-axis to the
  3. physics

    A banked circular highway curve is designed for traffic moving at 84 km/h. The radius of the curve is 152 m. Traffic is moving along the highway at 43 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow
  4. statistics

    do all populations- micheline tires, voters, people with high blood pressue...- produce a normal curve? True or False Is this false because all samples produce normal curves and not the populations, and don't you have to have a range of values and
  5. Algebra...

    Write the equation of a vertical line passing through the point (8,-4). Graph x=8 and see if that is what you want. I don't understand?!What do you mean? Do you know how to draw a graph? Plot X=8, y=0 x=8, y=2 x=8, y=4 and see what kind of a line you get.
  6. math

    Generalize this to fine a formula for the integral: sin(ax)cos(bx)dx Could someone tell me what they got for an answer so I can check it to see if my answer is right. My answer: -1/2sinasinbx^2-1/3acosaxcosbx^3+ integral 1/3 a^2cosbx^3sinax..I'm not sure
  7. college

    Sherri Russell College Mathematics1 December, 16, 2008 Interpreting Graphs and Intercepts Introduction: Graphs are created so that we can quickly derive meaningful information from them. They provide a visual representation of the data and, therefore, an
  8. Algebra

    Okay, so I'm asked to "Complete the table for each function". 1. f(x) = x^2 x = 0, +/-1, +/-2, +/-3 y = 0, 1, 4, 9 So, I plugged each of the x values into the equation and got the y values that are shown above? Are those correct, or did I do something
  9. Math (Trigenometry) 3

    Write f(x)=x^4-12x^3+59x^22-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I
  10. Math (Trigenometry)

    Write f(x)=x^4-12x^3+59x^2-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I
  11. Math (Trigenometry)

    Write f(x)=x^4-12x^3+59x^22-138x+130 as a product of linear factors. I listed the factors of 130 and used synthetic division, but none of the remainders came out to be 0. I graphed the function, but the function doesn't pass through the x-axis. I figured I
  12. Biology

    What would happen if your liver stopped producing sufficient quantities of bile salts? A. You would develop gallstones B.Your small intestine would have trouble breaking up fat globules. C. Your small intestine would have trouble neutralizing acid from
  13. math

    find the exponential function of the form y=ab^x whose graph passes through the points (4,6) and (7,10) i got a=3.04 and b= 1.185 so my equation is y=3.04(1.185)^4 is this correct? one more problem. find a power function of the form y=ax^b whose graph
  14. Linear Programming Investment Strategy

    How can I set this question up? Client has 800,000 that must be invested in 3 funds. 20 to 40% invested in growth fund, 20 to 50% in income fund and at least 30% in money market fund. Client has a max risk index of 0.05. Risk indicators - growth fund is
  15. Precalculus

    An item costs $12.00 in 2016 through an online retailer. Each year, the price will increase by 5% of the previous year’s price. A. Find the general rule for the sequence of the prices for this item. B. Determine what the price will be in 2030. C. If you
  16. Math please check answer

    Please check my answer thanks :) Find the equation of 9 (2x-18)=36 9(2x)-9 (18) =36 18-162 =36 18-162 =36 18x162 =36 +162 +162 ------------------------- 18x =198 18x 198 ----------- 18 =18 x =11
  17. Math please check answer

    Please check my answer thanks :) Find the equation of 9 (2x-18)=36 9(2x)-9 (18) =36 18-162 =36 18-162 =36 18x162 =36 +162 +162 ------------------------- 18x =198 18x 198 ----------- 18 =18 x =11
  18. physics

    How much heat is needed to be supplied to a 3.5 kg cylindrical rod if its volume changes by 1/4 of its original size? Assume that it is initially at 20K and that c = 2 cal/g.C and α = 8x10^2/C
  19. government

    Cases involving the decide the limits government power rights of individual answers are, statutory laws, administrative law, constitutional law
  20. introduction to law of torts

    What would be considered an attractive nuisance in the law of torts? a) A pretty girl at the mall. b) A pool without a fence. c) A toxic waste dump. d) a and c. e) None of the above. b?
  21. Constitution

    When a president signs a law, but makes a written statement about that law, it is referred to as: A. an amendment. B. a signing statement. C. an executive order. D. a pocket veto. is it B
  22. Science

    Can you check my answers for me? The answers I picked have a check mark next to them. Thank you. 1. Darwin’s theory of evolution by means of natural selection proposes that changes happen from generation to generation from ____________ of an organism to
  23. Civics

    Charles Schenck, a U.S. citizen, was responsible for printing and distributing leaflets that explained why he was against the draft (required military service) during World War 1. He was charged with violating the Espionage Act of 1917, a federal law that
  24. math help me out

    at the beginning of the year, the owner of a jewel shop raised the prices of all the jewel in his shop by x% and lowered then by x%. The price of one jewel after this up and down cycle reduced by rs 100. the owner carried out the same procedure after a
  25. economics

    Is the mrts? a. minuse one times the ratio of marginal products for ea. input? b. the slope of the marignal revenue product curve c. the marginal products of either input d. the slope of an icocost curve
  26. AP Calculus

    Consider a curve given implicitly by the equation (1+x)y^3 + (x^4)y - 85 = 0. A. Calculate dy/dx at a general point (x,y). B. Write the equation of the tangent line to the curve at the point (3,1). C. At (3,1), y(x) is defined implicitly as a function of
  27. Economics

    Why do people routinely stuff themselves at all-you-can-eat buffets? Explain in terms of both utility and demand theories. At any level, the marginal cost of take another bite at an all-you-can-eat place is zero. In terms of utility, a person should
  28. Progamming

    The Banking e-Teller system allows bank customers to perform ATM transactions from their cell phone. BET will allow customers to check balances, make remote capture deposits, and perform balance transfers to their checking or savings account. Balance
  29. Business Econ

    I need my answers checked for this question, thanks. A firm's production function: Q = 100 K^0.5 L^0.5 During the last production period, the firm operated efficiently and used input rates of 100 and 25 for labor and capital respectively. (a) What is the
  30. physics

    When the wind is blowing an average of 31.8 mph, a wind tower with its propellors centered at a height of 80 m off the ground is supplied with energy at a rate of 14.4 kW. A large bank of batteries collects the energy from the wind tower. If the efficiency
  31. CALCULUS ECONOMICS

    Consider a market in which consumption of the good being traded generates a positive externality. There are 100 identical consumers, each with a utility function given by (1/2)*(q^(1/2))+m +(G^(1/2)) where G denotes the total level of consumption in the
  32. Math (Check answers, please.)

    Hello. I am having some difficulty with this problem. Could you please check my answer? You start searching for a buried object by marking the center of a field as (0, 0), with coordinates giving distances in yards. Coordinates to the north or east are
  33. Math

    Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? Answer: 1306.25 4. Using your answer to the question above, what is the net dollar
  34. Economics

    Very confused on how to figure these out. Suppose that the following table shows the weekly visits to an amusement park as a function of the daily admission fee charged: #visits daily fee 200 $50 400 $40 600 $30 800 $20 1000 $10 What is the price
  35. math

    the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr.Write an equation that shows the relationship between the quantities.
  36. Chemistry

    Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction
  37. SCIENCE

    THE VALUE OF KC=6.2 AT 750K FOR THE REACTION CO+H20 <--> CO2.IF INITIALLY THE QUANTITIES OF CO AND H2O ARE 2 MOLES IN 1L.WHAT COULD BE THE EQUILIBRIUM CONCENTRATIONS FOR ALL CHEMICALS?
  38. Science

    What happens to the cells of the body when large quantities of sodium ion were introduced to the blood stream? Having trouble with this question, any help please! ;-)
  39. math

    find the unit rate and use it to write an equation relating the two quantities? 62 dollars to rent 14 video games 62/14?
  40. algebra

    Write an equation that shows the relationship between the quantities; the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr.
  41. math

    the total cost of hiring a certain plumber is a flat rate of $35 plus $9.50/hr. 6. Write an equation that shows the relationship between the quantities.
  42. Chemistry

    At what temperatures can 40mL of water dissolve the follownig quantities of potassium nitrate? (a) 35.0g (b) 20.0g can anyone start me off with a formula or a hint?
  43. Math-Forecasting Statistics

    The following data is a sample of daily maximum temperatures in New York in March (from 2006-2008). a. Calculate the mean (1 decimal place) and standard deviation (2 decimal places) of this data. You may use technology to answer this question. Only the
  44. Engineering

    Here we consider instead dissolving guns (which we will assume are pure iron) with sulfuric acid. Fe+H2SO4->FeSO4+H2 It is apparent that they must use an outside source of electrical power to drive the dissolution of the iron. They use a small current
  45. math

    A lounge suite is on sale for 15% off its original price. On sale the price of the suite is R8000. How to calculate the original price?
  46. math

    the price of a brick today is 49 cents. this is 3 cents less than 4 times the price 20 years ago. what was the price 20 years ago?
  47. chem

    Will someone help me with this problem, please? Calculate the mass in grams of 1.20*10^24 molecules of CO2. Well, convert it to moles of CO2. number moles= 1.2*1024/avagnumber Now, you take the molecular mass of CO2 (12 + 2*16) and multiply that by the
  48. Math please check answer

    please check my answer thanks Equation 9(2x-18) = 36 18 -162 = 36 18 x 162 =36 + 162 + 162 18 x = 198 18x 198 18 =18
  49. Algebra/Math

    Could you please check these thanks for your time. Directions: Arrange the terms of each polynomial so that the powers of x are in ascending order. 1. 5+x^5+2x^3+4x Answer: 5+4x+2x^3+x^5 2. x^2y^4+x^5y^3+xy^2+x^3y Answer: xy^2+x^2y^4+x^3y+x^5y^3
  50. Pre-Algebra Check

    1. Round your answer to the nearest tenth, if necessary. 22 miles/hour = ______ feet/second a. 0 b. 15 c. 1.5 d. 32.3 Answer: C? Thank you in advance!
  51. CHEM-CHECK ANSWER

    A 18.46 g sample of a compound contains 5.89 g potassium (K), 5.34 g chlorine (Cl), and oxygen (O). Calculate the empirical formula. is the answer KClO3?
  52. physics

    At what projection angle will the range of a projectile equal to 6 times its maximum height? Just need answer, i have done all of the work and want to check my answer
  53. Dog Hunting Training

    please check my answer thanks :) What is the distance of a lure course for a Junior Courser Title My answer is 600 yards
  54. MATH 156

    can some one please check if my answer is correct. Write the number in scientific notation. 15)0.000 294 Answer: 2.94x10^(-4)
  55. geography

    Can you check my answer. What is the capital of the nation that is located at the southern tip of Africa? My answer is Tshwane(Pretoria) Is this correct?
  56. algebra

    • After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example
  57. math i need help miss sue please check

    What is the prime number in this fraction 5/6? Please answer that then have another response to that one. What is the square root of 69? Answer that one then simplify this 20/65.
  58. Social Studies 7R - Qs. Check

    What is Preamble? I know the pre part is before but what about amble? My Answer: Intro of the Declaration of Independence. Is my answer is correct.
  59. Chemistry(Please check answer)

    The solubility product expression for mercury(I) iodide, Hg2I2 is Ksp = ? My answer is [Hg2^2+^][2I^-^]^2^ Would you agree?
  60. Math

    What is the best estimate for the quotient. 5,397 division sign 62 a. 80 b. 90 c. 800 d. 900 My answer to the above is b Can you please double check my answer and let me know if I am right or wrong
  61. science (check!)

    which of the following would be most likely to lead to increased biodiversity? . My answer: National park planning (though I kind of have the answer of farming in thought too)
  62. Algebra-Please check-I must have done something wr

    Please help-What is the equation of the ellipse with foci (0,6), (0,-6) and co-vertices (2,0),(-2,0) My answer and logic is below but it can't be correct I thought the answer would be x^2/4 + y^2/40 = 1 but that can't be because the choices are: x^2/1 +
  63. precalculus

    can you check my answer? 2.Which of the following shows the best next step to prove the following by mathematical induction? n!>2^n, n≥4 1. When n=1 the formula is valid because 4!>2^4 24>16 2.Assuming that k!>2^k show that (k+1)!>2^k+1
  64. History (Check Answer)

    What special knowledge did the Bantu carry with them as they migrated? A. Metalworking (my answer) B. Fishing C. Dancing D. Singing
  65. Math- Please check answer

    (.200-x)2 Would the answer be .400+x2
  66. Pre-Calculus-check answer

    Solve: x^2+y^2=10 and xy=3 Answer: (+/-3, +/-1) or (+/-1, +/-3)
  67. math

    Please check this problem to see if I answer correctly x - 3 > 8 Answer x > 11
  68. math-please check my answer

    50% of what number is 45? I did 45*.50=22.5 is that the correct answer?
  69. Math - Check my answer please

    Simplify. 3w - 10w MY ANSWER: -7w
  70. Derivatives (check answer)

    Let y=x^5 - pi^5. Find dy/dx My answer is 5x^4 because pi^5 becomes 0? Am I correct?
  71. Math

    Please check my answer. Multiply the reciprocal of 4 1/2 by 8/9. My answer: 9/2 x 8/9 2/9 x 8/9 = 16/81
  72. CALC -- integrals!

    2. f(x)=e^x for 0<x<2. Imagine that you have graphed this function in the x-y plane. For each value of x in the domain, erect a square above the curve perpendicular to the x-axis and parallel to the y-z plane where one side runs from the x-axis to
  73. Physics Mechanics

    A banked circular highway curve is designed for traffic moving at 57 km/h. The radius of the curve is 211 m. Traffic is moving along the highway at 48 km/h on a rainy day. What is the minimum coefficient of friction between tires and road that will allow
  74. Math

    The price of a jacket at store A is $48. If the price at store B is 5.5% higher, what is the price difference? What is the cost of the jacket at store B?
  75. math (double checking)

    I've posted this question before but I forgot to say that I was dealing with polynomial inequalities (not sure if that makes a difference) The question is: Solve the following polynomial inequalities. (9 marks) 4x - 5 ≤ 2(x - 7) x^3 - 5x^2 + 2x
  76. ap physics

    a 37.4-kg traffic light is supported by two wires prove you answer applying newtons law
  77. science

    what is the 3 laws of motion? & what is the law of universal gravitation plz answer thx in advance
  78. Business Law

    When there is a unilateral mistake, in what three types of situations may a contract not be enforced? Explain your answer.
  79. criminal law and procedures

    conspiracy is a/an ____ crime would the correct answer be general intent
  80. AP Macroeconomics

    Assume that the mix of goods in a basket is kept constant for long periods. If the price of one good rises very rapidly over several years, what will happen to the relative importance of the other goods in the basket? Is this a problem? If the price of
  81. law

    Revise and edit the following run-on sentence: Data in computerized form is discoverable, even if paper "hard copies" of the information have been produced, the producing party can be required to design a computer program to extract the data from its
  82. Physics

    As your bus rounds a flat curve at constant speed, a package with mass 0.300 , suspended from the luggage compartment of the bus by a string 46.0 long, is found to hang at rest relative to the bus, with the string making an angle of 30.0 with the vertical.
  83. stats

    Violence in School, I An SRS of 400 American adults is asked “What do you think is the most serious problem facing our schools?” Suppose that in fact 40% of all adults would answer “violence” if asked this question. The proportion p of the sample
  84. stats need help

    Violence in School, I An SRS of 400 American adults is asked “What do you think is the most serious problem facing our schools?” Suppose that in fact 40% of all adults would answer “violence” if asked this question. The proportion p of the sample
  85. ap stats

    Violence in School, I An SRS of 400 American adults is asked “What do you think is the most serious problem facing our schools?” Suppose that in fact 40% of all adults would answer “violence” if asked this question. The proportion p of the sample
  86. stats need help

    Violence in School, I An SRS of 400 American adults is asked “What do you think is the most serious problem facing our schools?” Suppose that in fact 40% of all adults would answer “violence” if asked this question. The proportion p of the sample
  87. Pre-Algebra

    how do i do these two. irene bought a typewriter at rocklanes in 1988 for $200.In 1999, she bought the same model of typewriter for $120.What is the percent decrease in the price of the typewriter. denise bought a typewriter at rocklanes in 1984 for $500.
  88. math,drbob222

    I'm sorry the problems i posted had a couple of errors how i posted it here they are: Posted by DrBob222 on Friday, November 24, 2006 at 6:19pm in response to Math. Thanks for showing your work. It helps us to know where you are having trouble. #4. [25/
  89. BUSINESS Law HELP!

    B decided to give himself a combination graduation 18 Bday(will occur in 2 wks) gift and purchased a car which he could use. B found a car which he like at F's Used Car Lot. A sign in the windshield indicated that the sale price was $2,500. While he spoke
  90. Math

    Using Netwon Law of Cool, the graph of T(t)=S+(T subscript --S)e^kt approaches a horizontal asymptote.What does the asymtote describe? a) intial temperature of the heated object b) temperature of the surrounding environment c) the difference in the
  91. Math

    Pierce Publishing sells encyclopedias under two payment plans: cash or installment. Under the installment plan, the customer pays $23/month over 2 yr with interest charged on the balance at a rate of 15%/year compounded monthly. Find the cash price for a
  92. Math

    The function y = 6 + 1.25x can be used to find the cost of joining an online music club and buying x songs from the website. Based on this information, which statement about the graph of this situation is true? F. The y-intercept of the graph represents
  93. physics

    Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 65.0ú. Dog " A" exerts a force of 256 N and dog " B " exerts a force of 344 N . I) Find the magnitude of the resultant force. ( Answered = 508 N ) II) Find the angle
  94. College Algebra

    1. Which of the following best describes how the graph of f can be obtained from the graph of y = 1/x^2? f(x) = 4/x^2 a. vertical stretch by a factor of -4 b. horizontal shift of 4 units to the right c. reflection over the y-axis, vertical shrink by a
  95. Civics

    To become a law, typically a bill must be approved by: a. The House of Representatives, the Senate, and the President b. The House of Representatives c. The Senate d. The Supreme Court I chose Letter A, but someone how my teacher said it was incorrect. I
  96. economics

    Which statement is the most accurate? A. Business activity in 1929 began to decline a few months before the stock market crash. B. The stock market crashed a few months before business activity began to decline. C. The stock market crashed at virtually the
  97. Math

    Consider F and C below. F(x, y, z) = (2xz + y2) i + 2xy j + (x2 + 15z2) k C: x = t2, y = t + 2, z = 3t − 1, 0 ≤ t ≤ 1 (a) Find a function f such that F = ∇f. f(x, y, z) = x2z+xy2+5z3+C Correct: Your answer is correct. (b) Use part (a) to evaluate C
  98. MATH

    Consider F and C below. F(x, y, z) = 2xz + y2 i + 2xy j + x2 + 15z2 k C: x = t2, y = t + 2, z = 3t − 1, 0 ≤ t ≤ 1 (a) Find a function f such that F = ∇f. f(x, y, z) = x2z+xy2+5z3+C Correct: Your answer is correct. (b) Use part (a) to evaluate C
  99. maths

    Find the normal to the curve x=tt+1x=tt+1 and y=tt−1y=tt−1 at the point T where t = 2. I tried converting this into one equation (y=x(t+1)t−1y=x(t+1)t−1) but don't see how to get the answer which says: dydx=−(t+1)2(t−1)2dydx=−(t+1)2(t−1)2
  100. Economics

    The Andrews Corporation produced satellite dishes, was purchased by another compay, which was a cable company: The Total Cost function for the New Company is: TC = 1,000 + 16Q – 16Q2, where the demand curve for Satellite Dishes is PS = 400 – QS and