Popular questions and responses by Gary
  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  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. 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
  14. algebra-what catastrophe makes a kitten happy?

    what catastrophe makes a kitten happy? OPTION : LET, CHAIN, THE , HAVE, CAT, CRY, ONE,OUT, OVER , LITTLE, DOG, SPILT, NEW, OUTSIDE, MILK, OLD.

    asked on October 24, 2007
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. Calculus

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

    asked on May 7, 2015
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. 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
  30. chemistry

    At 7.0 degrees C, the volume of a gas is 49ml. At the same pressure, its volume is 74 mL at what temperature?

    asked on December 7, 2010
  31. 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
  32. 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
  33. Calculus I

    Let A be the area of a circle with radius r that is increasing in size with respect to time. If the rate of change of the area is 8 cm/s, find the rate of change of the radius when the radius is 3 cm.

    asked on February 11, 2014
  34. physics

    A rock is thrown vertically upward from the edge of a cliff. The rock reaches a maximum height of 20.6 m above the top of the cliff before falling to the base of the cliff, landing 6.44 s after it was thrown. How high is the cliff?

    asked on September 8, 2012
  35. 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
  36. 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
  37. geometry

    BA is perpendicular to BD. Angle ABE measures 17 degrees and angle DBC measures 54 degrees. Fine the measure of angle EBC.

    asked on November 30, 2011
  38. 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
  39. Math

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

    asked on March 5, 2015
  40. Chemistry

    If each balloon is filled with carbon dioxide at 20 deg. C and 1 atmosphere, calculate the mass and the number of moles of carbon dioxide in each balloon at maximum inflation.

    asked on January 26, 2014
  41. 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
  42. math

    Express each ratio as a unit rate.Round to the nearest tenth, if necesary. A: 400 feet in 52.4 seconds B: 184 meters in 38 seconds

    asked on December 13, 2012
  43. payroll accounting

    Julie Whiteweiler made $930 this week. Only social security (fully taxable) and federal income taxes attach to her pay. Julie contributes $100 each week to her company's 401(k) plan and has $25 put into her health savings account (nonqualified) each week.

    asked on March 7, 2012
  44. math

    wesley estimated 5.82-4.21 to be about 2. Is this an overestimate or an underestimate

    asked on September 22, 2009
  45. economics

    18. (Shifts in the PPF) Terrorist attacks foster instability and may affect productivity over the short and long term. Do you think the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon affected short- or long term

    asked on August 23, 2010
  46. 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
  47. 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
  48. Managerial Finance

    Jefferson Products, Inc., is considering purchasing a new automatic press break, which costs $300,000 including installation and shipping. The machine is expected to generate net cash inflows of $80,000 per year for 10 years. At the end of 10 years, the

    asked on March 10, 2010
  49. math

    a student who weighs 500 newtons climbed the stairs frim the first fkoor to the third floor 15 meters above in 20 second How much work did she do? what was her power? How do you write this question out HELP

    asked on October 25, 2009
  50. math

    Oregon is about 400 miles from west to east, and 300 miles from north to south. If a map of Oregon is 15 inches tall ( from north to south), about how wide is the map?

    asked on December 2, 2013
  51. math

    a mother wants to divide 680.00 among her children according to the ratio 2:4:6

    asked on August 16, 2010
  52. 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
  53. 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
  54. 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
  55. math

    A. Mandy buy a sweater that is on sale for 20% less than the original price, and then she uses a coupon worth an additional 15% off of the sale price. What percentage of the original price has she saved ? B. If the price of a stock increases by 40% and

    asked on January 27, 2013
  56. physical

    Part A Each blade on a wind turbine is engineered to produce an effective force through its center of mass that is perpendicular to its long axis. (Part A figure) The magnitude of the force produced by each blade in a wind of speed v is F=(40.0~{\rm

    asked on April 6, 2011
  57. math

    1. List the terms in the expression below, place a comma between each term. 19cd + 6d^2 + 8 2. List the coefficients in the expression below, place a comma between each coefficient. -7y + 13ab^2 + x

    asked on March 7, 2013
  58. 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
  59. 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
  60. English

    how do you write a telling sentence

    asked on November 27, 2018
  61. 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
  62. math

    A box contains 300 colored paper clips. Tony pulled 25 paper clips out at random and found 6 pink, 4 white, 10 yellow, and 5 blue clips in the sample from the data. Tony predicts there are about 150 yellow paper clips in the entire box. Ia tony's

    asked on September 15, 2011
  63. 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
  64. math

    Mrs. Cindy needs to order new balls for the school students to use at recess. She asks the students what balls she should order. One-third of the students want Mrs. Cindy to order soccer balls. One-third of the students want Mrs. Cindy to order

    asked on May 22, 2012
  65. 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
  66. trig.

    A 2000 pound car is parked on a street that make an angle of 12 degrees with the horizontal figure Find the force perpendicular to the street.

    asked on April 4, 2010


    asked on February 18, 2008
  68. math

    write the fraction 9/100th as a percentage

    asked on February 1, 2019
  69. math

    Maya chatted online with all her friends for 2/3 of an hour on saturday and 1/4 of an hour on sunday.During that time period she chatted with Paul for 1/8 of an hour. What fraction of the time Maya spent chatting with her friends online was spent chatting

    asked on April 13, 2014
  70. 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
  71. Chemistry

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

    asked on March 1, 2016
  72. math

    A. One board is one-third the length of another. Six times the sum of the length of the short board and -10 is equal to the length of the longer board decreased by 11 inches. Find the length of the longer board. B. The length of a rectangle is 4 feet more

    asked on July 11, 2013
  73. math

    estimate the difference of 5,602-2,344

    asked on September 22, 2009
  74. us history

    Who warned the colonists of the British advance toward Concord?

    asked on November 26, 2008
  75. math

    The "wapple" of a number is defined as the number of positive odd intergers less than that number. 1. what is the wapple of 19? 2.If the wapple of x is equal to 5, what is the wapple of x + 6?

    asked on September 14, 2012
  76. 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
  77. 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
  78. 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
  79. math

    A. In triangle, the second angle measures twice the first, and the third angle measures 5 more than the second. If the sum of the angles' measures is 180^0, find the measure of each angle. b. The price of a pack of gum today is 63 cent. This is 3 cent more

    asked on July 10, 2013
  80. Math (venn diagram)

    120 students were surveyed about their food preferences. 62 liked pizza,75 liked burgers and 48 liked tacos. 15 liked all three. 93 liked pizza or burgers, 96 liked burgers or tacos, and 88 liked pizza or tacos. a) construct a venn diagram that will

    asked on December 17, 2010
  81. Math

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

    asked on April 24, 2020
  82. 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
  83. 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
  84. physics

    A VW Beetle goes from 0 to 59.0 mi/h with an acceleration of +2.35 m/s2. (a) How much time does it take for the Beetle to reach this speed? (b) A top-fuel dragster can go from 0 to 59.0 mi/h in 0.700 s. Find the acceleration (in m/s2) of the dragster.

    asked on September 18, 2012
  85. 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
  86. Calculus I

    If x^2+y^2=25, find dy/dt when x=3 and dx/dt= -8.

    asked on February 12, 2014
  87. Statistics !

    Hi I have calculated some statistics using a spreadsheet program and I have to compare three slopes of regression and their significance level in an energy species hypothesis.. -2.11 level of significance is 5% -4.73 level of significance is 1% -4.13 level

    asked on June 4, 2009
  88. 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
  89. 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
  90. accounting/check please

    (hey i asked for help with accounting with a question i saw the same question at this site but when i click it it doesnt work is there anyway you can check it for me then what they posted there you can copy and post it here for me).my question was Tracy

    asked on January 13, 2010
  91. Algebra 2 -math


    asked on October 24, 2007
  92. English3

    In “The Turtle” from The Grapes of Wrath, how does the stem of the wild oat seeds use the turtle to carry it to a place where it can grow?

    asked on January 15, 2013
  93. 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
  94. algebra

    An artifact was found and tested for its carbon-14 content. If 75% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.) thank you

    asked on May 11, 2014
  95. science

    a 49 newton rock is lifted in 5 seconds A. how much work is done? B.what power is used? How do you write this question out

    asked on October 25, 2009
  96. finance

    Would each of the following increase, decrease, or have an in determinant effect on a firm’s breakeven point (unit sales)? a. An increase in the sales price with no change in unit costs. b. An increase in fixed costs accompanied by a decrease in variable

    asked on June 10, 2008
  97. 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
  98. math

    a spinner has four equal parts marked 1-4, another spinner has 3 equal parts colored red, blue and yellow. What are all the possibe outcomes?

    asked on January 15, 2013
  99. physics

    A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 7.84 s. What is its initial velocity? Neglect air resistance.

    asked on September 18, 2012
  100. Chemistry

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

    asked on May 24, 2015


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