Popular questions and responses by gary
  1. Physics

    A stone is dropped from the top of a cliff. The splash it makes when striking the water below is heard 3.5 s later. How high is the cliff

    asked on June 30, 2010
  2. poetry (Pioneer by Dorothy Livesay)

    I have to answer the questions according to this poem, I have answered them but just want someone to look over them to see if they are right. The last one I had trouble with and need help on that one too. The answer that I think it is I have put arrows on

    asked on October 7, 2013
  3. Chemistry

    A 1.00 g sample of limestone is allowed to react with 100 cm^3 of 0.200 mol/dm^3 HCl. The excess acid required 24.8 cm^3 of 0.100 mol/dm^3 NaOH solution. Calculate the percentage of calcium carbonate in the limestone

    asked on July 10, 2016
  4. math

    Given: 20,000 shares cumulative preferred stock ($2.25 dividend per share): 40,000 shares common stock. Dividends paid: 2013, $8,000; 2014, 0; and 2015, $160,000. How much will the preferred stockholders and the common stockholders receive each year?

    asked on October 21, 2014
  5. Calculus

    Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2), with x ≠ 2. a.Find all values of x where the graph of g has a critical value. b.For each critical value, state whether the

    asked on May 8, 2015
  6. poetry

    The poem is: Canada Day Love Match My mother stalked her future son in law, convinced he was the one for me. Through the crowd at the Forks Market, she kept behind him like a cat ready to pounce. I kept out of his line of sight. Blind to us, he watched

    asked on October 7, 2013
  7. math

    1. If x people working together make a total of y dollars after an hour of work. how much money will z people make if they work 4 hours at the same rate per person ? 2.Each of the n members of an organization may invite up to 3 guests to a conference. What

    asked on January 27, 2013
  8. Physics

    a 2.35 kg water bucket is swung in a full cirlce of radius 0.824 m just fast enough so that the water doesn't fall out the top meaning n equals zero there. What is the speed of the water at the top

    asked on June 13, 2019
  9. Calculus

    True or False If f is continuous at x = c, then f is differentiable at x = c.

    asked on May 7, 2015
  10. Calculus

    For which pair of functions f(x) and g(x) below will the lim f(x)/g(x)equal 0 x-infinity f(x) e^x; g(x) = x^3 f(x) x^5; g(x) = e^x f(x) x^3; g(x) = ln(x) f(x) x^negative 2; g(x) = e^negative x

    asked on March 10, 2015
  11. Chemistry

    The half-life for the process 238 U --> 206 Pb is 4.5*10^9 yr. A mineral sample contains 66.0 mg of 238 U and 16.0 mg of 206Pb. What is the age of the mineral?

    asked on February 12, 2012
  12. math

    A particle moves along the x-axis so that at any time t, measured in seconds, its position is given by s(t)equals = 5cos(t) minus- sin(3t), measured in feet. What is the acceleration of the particle at time t =equals π seconds?

    asked on March 6, 2015
  13. math

    A. A woman was 30 years old when her daughter was born.Her age is now 6 years more than three times her daughter's age. How old will the daughter be in 5 years? B. Lisa is 15 years old and her father is 40. How many years ago was the father six times as

    asked on July 13, 2013
  14. math

    True or false? If f is continuous at x = c, then f is differentiable at x = c.

    asked on March 11, 2015
  15. math, physics

    The driver of a car traveling at 60 ft/sec suddenly applies the brakes. The position of the car is s(t) equals 60t minus - 1.5t^2, t seconds after the driver applies the brakes. How many seconds after the driver applies the brakes does the car come to a

    asked on March 6, 2015
  16. pre calculus

    12. Use the remainder theorem to find P (-2) for P(x) =x^3+2x^2-x-7. Specifically, give the quotient and the remainder for the associated division and the value of P (-2). Quotient =? Remainder =? P (-2) =?

    asked on January 30, 2015
  17. math trigonometry

    At night, a security camera pans over a parking lot. The camera is on a post at point a which is 53m from point c and 71 m from point b.the distance from B to c is 68m. Calculate the angle through which the camera pans

    asked on April 14, 2014
  18. math

    A. John is now 10 years older than Marcus. Three times John's age 5 years from now will be the same as five times Marcus's age 5 years ago. How old is John now? B. In 1 year Kristen will be four times as old as Danielle. Ten years from then Kristen will

    asked on July 13, 2013
  19. math

    Each rabbit constume needs one and one half yards of white fur fabric. a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. If Gail has ten yards of white fur fabric, seven yards of blue striped fabric, and one and three

    asked on December 26, 2012
  20. math

    A bulletin board is 56 in wide and 36 in high. How many 3 1/2 in columns can be created?

    asked on November 15, 2012
  21. Math

    In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

    asked on December 4, 2017
  22. Chemistry

    4.80 dm^3 of chlorine gas was reacted with NaOH solution. a) how many moles of Cl2 reacted b) what mass of NaOCl was formed? c) if the concentration of the NaOH was 2.00 mol/dm^3. What volume of sodium hydroxide solution was required? d) write an ionic

    asked on July 12, 2016
  23. physics

    A boat sails 5.0(45 degrees W of N). It then hanges direction and sails 7.0km(45 degrees S of E) where does the boat end up with reference to its starting point.? Please explain steps answer is 2km(45 degrees S of E)

    asked on July 4, 2013
  24. Chemistry

    A certain first-order reaction has a rate constant of 2.60×10−2 s-1 at 18 C. What is the value of k at 55 C if Ea = 90.0 kj/mol?

    asked on February 6, 2012
  25. finance

    New project analysis You must evaluate a proposal to buy a new milling machine. The base price is $108,000, and shipping and installation costs would add another $12,500. The machine falls into the MACRS 3-year class, and it would be sold after 3 years for

    asked on June 9, 2008
  26. Math

    Eye radius of category 5 cyclones is 20Km. What is the probability that any randomly selected category 5 cyclone will cross the Qld coast such that the eye wall of the cyclone will pass over Cairns which is on a 3200Km section of Qld coast? Cyclones

    asked on April 4, 2008
  27. Calculus

    A population of 1200 badgers grow by 6% every 8 years. How long does it take the population of badgers to grow 2000?

    asked on February 3, 2017
  28. politcal science

    Who is the only third-party candidate to win more than 25% of the popular vote? Question 7 options: Millard Fillmore Theodore Roosevelt George Wallace Ralph Nader

    asked on March 20, 2016
  29. Physics

    If ∆Q is the heat supplied to a gas so that the internal energy of the system increases by ∆U, then the work done ∆W by the gas is equal to: ∆Q – ∆U ∆Q + ∆U ∆Q x ∆U ∆U/∆Q

    asked on May 8, 2015
  30. Calculus

    If f is a function such that [(f(b)-f(a))/(b-a)]=2 , then which of the following statements must be true? a.f(a) = f(b) = 2 b.The slope of the tangent line to the function at x = a is 2. c.The average rate of change of the function on the interval [a, b]

    asked on May 7, 2015
  31. math

    Which of the following is the best linear approximation for f(x)equals sin(x) near x equals =π seconds? y=-x+pie-1 y=-1 y=-x-pie y=-x+pie

    asked on March 11, 2015
  32. math

    The height of a cylinder with a fixed radius of 10 cm is increasing at the rate of 0.5 cm/min. Find the rate of change of the volume of the cylinder (with respect to time) when the height is 30cm.

    asked on March 9, 2015
  33. math

    A. Brad is 12 years older than Sam . If Brad were 8 years older than he is now. he would be twice as old as Sam. How old is Sam now? B. Barrie is now 2 years older than Krista. In 15 years Barrie's age will be 2 years more than twice Krista's age now. How

    asked on July 13, 2013
  34. math

    what is my number? Clue 1 My number is a multiple of 5,but it does not end in 5. Clue 2 The prime factorization of my number is a string of three numbers. Clue 3 Two of the numbers in the prime factorizations are the same. Clue 4 My number is greater than

    asked on September 12, 2010
  35. Math

    My seven year old was set this question and I was asked to solve. Help please. Here is the question: My number has 5 tens. The ones digit is less than the tens. What could the number be? My solution was 5 x 10 = 50. Then subtract 1 from the tens = 49 is

    asked on October 9, 2016
  36. Chemistry

    1.06g of Na2CO3 is dissolved in water to make 250cm^3 solution. 10.0 cm^3 of this solution was further diluted to make 500cm^3 of 2nd solution. 25.0cm^3 of 2nd solution reacted with 28.5cm^3 of HCl. Find the concentration of HCl in mol/dm^3

    asked on July 14, 2016
  37. Chemistry

    How is 4FeS2 + 11O2 = 2Fe2O3 +8SO2 a single replacement reaction?

    asked on March 1, 2016
  38. Math

    You are ordering a meal and have $15 to spend . The restaurant charges 6% sales tax. You plan to leave a 15% tip . The equation C = x + 0.06x + 0.15x gives the total cost C of your meal , where x is the cost before tax and tip . What is the maximum amount

    asked on January 4, 2016
  39. Calculus

    The local linear approximation of a function f will always be greater than or equal to the function's value if, for all x in an interval containing the point of tangency f '(x) < 0 f '(x) > 0 f "(x) < 0 f "(x) > 0

    asked on May 7, 2015
  40. Calculus

    The local linear approximation of a function f will always be greater than or equal to the function's value if, for all x in an interval containing the point of tangency f '(x) < 0 f '(x) > 0 f "(x) < 0 f "(x) > 0

    asked on May 7, 2015
  41. POLS210 D001

    Please I am in desperate need of finding the answer to pop quiz 4,6,and 8 please is there anyone out there that could help me.

    asked on April 22, 2015
  42. Elementary Statistics

    10. In a game of “chuck a luck” three dice are rolled. If your number comes up on all three dice you win $3. If your number comes up on two dice you win $2. If your number comes up only once you win $1. If your number doesn’t come up at all you lose

    asked on April 19, 2015
  43. math

    Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2) with x ≠ 2. Find all values of x where the graph of g has a critical value. For each critical value, state whether the graph

    asked on March 16, 2015
  44. Math

    If 1,200 cm^2 of material is available to make a box with a square base and an open top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter.

    asked on March 6, 2015
  45. Math

    provide one of the two positive integers whose sum is 200 and whose product is a maximum.

    asked on March 5, 2015
  46. physics

    A long, ideal solenoid has a diameter d=12cm and n=1200turns/meter carrying current I=20A. If the current is lowered at 4.33amp/s to zero, what is the magnitude of the induced electric field in V/m at a position 8.2cm from the solenoid's axis (so at a

    asked on April 7, 2014
  47. math

    The base of the lamp of a triangular prism with an equilateral triangle base . The surface of the stand is to be painted.what is the area that will be painted?Give the answer to the nearest whole number.

    asked on February 19, 2014
  48. math

    1. If x people working together make a total of y dollars after an hour of work. how much money will z people make if they work 4 hours at the same rate per person ? 2.Each of the n members of an organization may invite up to 3 guests to a conference. What

    asked on January 27, 2013
  49. math

    x=6y/5-8y-3y+9y,what is the value of y in terms of x ?

    asked on January 13, 2013
  50. finance

    You annually invest $1,500 in an individual retirement account starting at the age of 20 and make the contributions for 10 years. Your twin sister does the same starting at age 30 and makes the contributions for 30 years. Both of you earn 7 percent

    asked on September 24, 2012
  51. math

    Fran bought 6 yards of blue tapestry material. She used it to upholster 3 chairs. How much of the material would che need to upholster 7 chairs?

    asked on January 25, 2012
  52. math

    Triangle JKM has j=28cm, k=17cm, and m=13cm. a. find the measure of the smallest angle b. find the area of the triangle

    asked on November 25, 2011
  53. chemistry

    The laboratory technician accidentally mixed NaHCO3 with BaCl2*2H2O instead of KCl when preparing unknown mixtures for this experiment. How would this mistake affect the calculated percentage of NaHCO3 in the mixture? Justify your answer with an

    asked on October 13, 2011
  54. Gen.Chem. 111

    what happens when HCl is added to CoCl2*6H20? and what happens when you add AgNO3 to the product?

    asked on April 12, 2011
  55. math

    I have been doing this prblem for hours and am trying to see how they get this answer. Please help! One- eighth of an audience consisted of boys and one-fourth consisted of girls. What percent of the audience consisted of children?

    asked on February 16, 2011
  56. trig

    how do you explain y=2 cos(1 half x)

    asked on February 1, 2011
  57. Math (Algebra 2)

    Use long division to find the quotient and remainder when f(x)= 15 x^4 - 9 x^3 - 18 x^2 + 24 x + 18 is divided by g(x)= 3 x + 1

    asked on January 17, 2011


    asked on September 2, 2010
  59. economics

    (Growth and the PPF) Use the production possibilities frontier (PPF) to demonstrate economic growth. a. With consumption goods on one axis and capital goods on the other, show how the combination of goods selected this period effects the PPF in the next

    asked on August 23, 2010
  60. Finance

    If I loaned someone $5000 four years ago at an interest rate of 5%, how much do they owe me now?

    asked on February 10, 2010
  61. College Chemestry

    an agueous solution of ethlylene glycol (C2H6O2) is 40% ethylene glycol by mass, and has a density of 1.05g/ml. What are the molarity, molality, and mole fraction of the solution? Do you know how to solve this...I am kinda lost..please help

    asked on October 26, 2008
  62. Math

    How many 1/4 foot long pieces can I cut from a 5 feet long board

    asked on April 24, 2020
  63. Math

    What is the value of house acquired in 2000 that valued at $140,000 in 2019 with an average annual appreciation rate of 1.6%

    asked on January 18, 2020
  64. math

    write the fraction 9/100th as a percentage

    asked on February 1, 2019
  65. English

    how do you write a telling sentence

    asked on November 27, 2018
  66. Math

    In a concert hall, 60% of the seats were taken. 520 seats were empty. What is the total number of seats in the concert hall?

    asked on November 3, 2018
  67. Science

    Why is it important for scientists to figure out how much matter is in space?

    asked on February 22, 2018
  68. Math

    A man can do a certain task in 21 hours, another man can do the task in 28 hours and a boy can do the task in 48 hours. Find how long it will take to do the task if all three work.

    asked on December 4, 2017
  69. Math

    The three angles of a triangle are x°, (x + 30)° , (x – 6)° . Find the dimension of each angle.

    asked on December 4, 2017
  70. Math

    Mark leaves the house for school walking at the rate of 4 km. per hour. Two hours later Kris follows Mark at a walking rate of 6 km. per hour. How long will Kris have to walk to overtake Mark?

    asked on December 4, 2017
  71. Physics

    Is this logic correct? Explain why momentum is conserved when a ball bounces off the ground. My logic : The ball strikes the ground with velocity v. As it leaves the ground, its velocity is also v but in the opposite direction.. i.e -v Hence, m*v + m*(-v)

    asked on October 6, 2016
  72. math

    name the property that justifies each step 2(3x-4)=8x-11

    asked on September 11, 2016
  73. Statistics

    A production line operation is designed to fill cartons with laundry detergent to a mean weight of 32 ounces. A sample of cartons is periodically selected and weighed to determine whether underfilling or overfilling is occurring. If the sample data lead to

    asked on July 30, 2016
  74. physics

    a sky diver jumps out of a plane that is 3000m above ground with an initial upward speed of 6m/s she free falls for 20s (assume there is no wind at this time)before pulling the cord to activate the parachute she then falls to the ground at a constant

    asked on July 27, 2016
  75. physics

    a person in a hot air balloon ascending vertically at a constant rate of 12m/s drops a rock over the side when the balloon is 40 m above the ground, what is the velocity of the rock just before it hits the ground, and how long will it take the rock to

    asked on July 27, 2016
  76. geometry

    what would tan be for -1^(9)to the nearest degree? and what would sin -1^(0.62) be to the nearest degree?

    asked on June 25, 2016
  77. politcal science

    As of January 2015, how many members of the House of Representatives and the Senate are NOT members of the Democratic or Republican party? 0 123 100 2

    asked on March 20, 2016
  78. politcal science

    Which of the following is NOT one of the Republican party factions? Fiscal Conservatives Libertarians Organized labor Neoconservatives

    asked on March 20, 2016
  79. politcal science

    In Washington's Farewell Address, what type of policy did he advocate when dealing with foreign countries? Question 6 options: Complete isolation for all foreign countries Extensive treaties with other countries Expansion of US power over foreign countries

    asked on March 20, 2016
  80. Chemistry

    The solidified carbon dioxide, dry ice, is used as the refrigerant to temperatures of 78 °C order What physical state of carbon dioxide at 25°C and 1 atm?

    asked on January 20, 2016
  81. Calculus

    The balance in an account triples in 20 years. Assuming that interest is compounded continuously, what is the annual percentage rate? I found the equation: y=e^(xln3/20) assuming that y0=1 I got 5.64%, is that right?

    asked on December 28, 2015
  82. Math


    asked on December 18, 2015
  83. Thermochemistry

    For the combustion of 100. gm of methane, how much heat would be generated?

    asked on September 6, 2015
  84. math

    If the path from park rangers station to camp ground is 0.55 miles determine and state to the nearest hundred of a mile.

    asked on June 2, 2015
  85. Chemistry

    Give the molecular formula for the following: 1)Methoxy methane 2) Methoxy Ethane 3) Ethoxy ethane

    asked on May 24, 2015
  86. Statistics

    Suppose a random family of four is selected (two parents and two children). Suppose further that you are told one of the two children is a girl. Given that this family has at least one daughter, what is the conditional probability that it also has a son?

    asked on April 19, 2015
  87. math

    This is a continuous from my last question Let g be a function that is defined for all x, x ≠ 2, such that g(3) = 4 and the derivative of g is g′(x)=(x^2–16)/(x−2) with x ≠ 2. On what intervals is the graph of g concave down? Justify your answer.

    asked on March 18, 2015
  88. Math

    What is the answer to ( what is the combined height of 3 nickels, 2 nickels, and 1 nickel?

    asked on March 10, 2015
  89. math

    A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = (x^2)h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 10 cm, the edge length of

    asked on March 9, 2015
  90. math

    Would the answer be 2000 to this? with 1,200 i got 4,000? If 600cm^2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters.

    asked on March 6, 2015
  91. Math

    A farmer has 2,400 feet of fencing and wants to fence off a rectangular field that borders a straight river. He needs no fence along the river. Write the function that will produce the largest area if x is the short side of the rectangle.

    asked on March 5, 2015
  92. Math

    What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y equals= 12 minus x^2?

    asked on March 5, 2015
  93. Calculus

    1) A rectangular page is to contain 16 square inches of print. The page has to have a 2-inch margin on top and at the bottom and a 2-inch margin on each side. Find the dimensions of the page that minimize the amount of paper used. 2) A rectangular garden

    asked on March 5, 2015
  94. Problem Solving

    Michael has designated 5% of his paychecks for the year for presents (birthday, Monther's day, etc.) Write a solution to calculate the amount of money he can spread give the amount of money he earns.

    asked on February 28, 2015
  95. math

    Nicole is making a bowl of chex mix to serve her guests.She has already put 45 cups of nuts.410 cups of raisins and 112 cups of chocolate chips in the bowl,If she wants to make four cups total, how much chex cereal will she need to add?

    asked on February 9, 2015
  96. 1210 Math

    A projectile follows a parabolic path whose height, in meters, is given by the function f(x) =-x^+2x+2, find the maximum horizontal distance that the projectile may cover

    asked on November 16, 2014
  97. algebra

    solve the equation for x -2(2x-2)=2x for y 9x+y=9 solve theinequality 2x-6

    asked on November 8, 2014

    what do you observe on the seawater where ships dock? Explain in relation with attractive forces and surface tension..

    asked on October 7, 2014
  99. trig

    The centers of two belt pulleys, with radii of 3 cm and 6 cm, respectively, are 13 cm apart. Find the total area K enclosed by the belt.

    asked on October 6, 2014
  100. Math 114

    a store mixes kenyan coffee worth $11 per kilogram and turkish coffee worth $13 per kilo gram. The mixture is to sell for $12 per kilogram. Find how much of each should be used to make a 588 kilo mixture.

    asked on August 26, 2014


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