Ernie

Popular questions and responses by Ernie
  1. math, please help!

    The table lists how poverty level income cutoffs(in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the poverty level cutoff in 1987 to the nearest dollar. the poverty level cutoff in 1987 was _____ dollars. (

    asked on March 18, 2014
  2. math

    If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hire 1 day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

    asked on December 4, 2014
  3. Calculus

    1. Express the given integral as the limit of a Riemann sum but do not evaluate: integral[0 to 3]((x^3 - 6x)dx) 2.Use the Fundamental Theorem to evaluate integral[0 to 3]((x^3 - 6x)dx).(Your answer must include the antiderivative.)

    asked on May 7, 2018
  4. math

    If 18g of a radioactive substance are present initially and 5 yr later only 9g remains, how much of the substance will be present after 11yr?

    asked on December 3, 2014
  5. College Algebra

    The table lists how poverty level income cutoffs(in dollars) for a family of four have changed over time. Use the midpoint formula to approximate the poverty level cutoff in 1987 to the nearest dollar. the poverty level cutoff in 1987 was _____ dollars. (

    asked on March 18, 2014
  6. Calculus

    Using 4 equal-width intervals, show that the trapezoidal rule is the average of the upper and lower sum estimates for the integral from 0 to 2 of x squared, dx .

    asked on May 7, 2018
  7. Writing skills

    Their sure the only sounds they will hear at night will be the wash of ocean waves or the croaks of bullfrogs.

    asked on May 13, 2017
  8. Writing skills

    Many people who spend their summers in a city dream of owning a cottage at the shore or in the mountains by a lake.

    asked on May 14, 2017
  9. Calculus

    Find the interval on which the curve of y equals the integral from 0 to x of 6 divided by the quantity 1 plus 2 times t plus t squared, dt is concave up.

    asked on May 8, 2018
  10. math Too Hard!

    to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

    asked on October 7, 2013
  11. intermediate algebra

    a motorboat moves 25 miles per hour in still water. it travels 21 miles upstream and 21 miles downstream in a total time of 2.0 hours. whatis the speed of the current?

    asked on October 6, 2013
  12. algebra

    ``If 18g of a radioactive substance are present initially and 5 yr later only 9 g remain, how much of the substance will be present after 11yr ? after 11yr there will be ___g of a radioactive substance. round the final answer to the nearest thousandth as

    asked on December 1, 2014
  13. algebra

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 3, 2014
  14. algebra

    The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving

    asked on October 6, 2013
  15. algebra

    Find the doubling time of an investment earning 7% interest if interest is compounded continuously is ____years. Round to the nearest tenth of a year.

    asked on December 1, 2014
  16. Writing skills

    Whether or not we have chosen to use our licenses since then.they remain of enormous value to us.

    asked on May 13, 2017
  17. math ?

    Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x)= 0 ?

    asked on November 20, 2014
  18. Writing skills

    In the past,the United States Public Health service and state local health departments dominate the field.

    asked on May 10, 2017
  19. math

    find the distance between the points (-20,16) and (-15,19). also find the midpoint of the segment that joins the points. what is the distance?_____ what is the midpoint?______

    asked on November 1, 2014
  20. algebra

    The perimeter of a triangle is 57in. The longest side is 13in. longer than the medium side, and the medium side is 7 in. more than the shortest side. find the length of each side of the triangle. The length of the longest side is ___in, the length of the

    asked on December 1, 2014
  21. Algebra 2

    Did I solve this word problem correctly? In last week’s basketball game, the Lions scored 6 less than twice what the Bobcats scored. The sum of their scores is 30. How many points did the Lions and the Bobcats score individually? 2x+2x-6=30 2x+2x=36

    asked on November 1, 2015
  22. math-algebra

    The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving

    asked on October 7, 2013
  23. Writing skills

    Many people who spend their summers in a city dream of owning a cottage at the shore or in the mountains by a lake.

    asked on May 13, 2017
  24. algebra

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 2, 2014
  25. Writing skills

    Some just look forward to the perspect of watching birds and animals,such as rabbits or deer,in their natural habitats.

    asked on May 13, 2017
  26. math

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 4, 2014
  27. math

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 2, 2014
  28. Algebra please help

    $11,000, invested for 9 years at 3% compounded quarterly.

    asked on April 23, 2014
  29. algebra

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 2, 2014
  30. math please help!!!!!

    Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

    asked on November 21, 2014
  31. math

    The Fan cost Index(Fci)represents the cost of four average-price tickets, refreshments, and souvenirs to a sporting event. The FCIs for an Independent tennis league and an Independent basketball league totaled $123.62. The basketball FCI was $$6.98 more

    asked on December 4, 2014
  32. physics

    The speed of a moving sidewalk at an airport is 2ft/sec. A person can walk 93ft forward on the moving sidewalk in the same time it takes to walk 12ft on a non moving sidewalk in the oppsite direction. At what rate would a person walk on a nonmoving

    asked on October 6, 2013
  33. math help

    Factor f(x) into linear factors given that k is a zero of f(x). f(x)=x^3+(12-4i)x^2+(32-48i)x-128i, k=4i In completely factored form, f(x) =____ (factor completely. simplify your answer)

    asked on November 21, 2014
  34. math alegebra

    to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

    asked on October 7, 2013
  35. finance

    $11,000, invested for 9 years at 3% compounded quarterly.

    asked on April 23, 2014
  36. math

    If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hires i day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

    asked on December 2, 2014
  37. algebra

    to determine the number of trout in a lake, a conservationist cathes 123 trout, tags them and throws them back into the lake. later,44 trout are caught, 11 of them are tagged. how many trout would the conservationist expect to be in the lake

    asked on October 6, 2013
  38. earth

    A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

    asked on December 4, 2013
  39. algebra

    If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is $1200. If he hires i day laborer and 4 concrete finishers, his daily cost is $924. Find the daily wage for each type of worker.

    asked on December 2, 2014
  40. math

    midpoint (4,13) endpoint (0,6). find the other endpoint

    asked on September 27, 2014
  41. math word problem

    to determine the size pf a parks moose population, caturalists catch 72 moose, tag them, and then set them free. months later 65 moose are caught, of which 15 have tags. Estimate the size of the moose population.

    asked on October 7, 2013
  42. Calcuus

    What are the points of inflection for the function f(x)=xln(x)? Thanks a lot, you guys are the bomb!

    asked on March 19, 2008
  43. algebra

    Abigail buys a dress for $12 & a backpack for $10.50. She is also charged 9% sales tax on the dress only. Write an expression that represents total cost abigail had to pay

    asked on May 30, 2016
  44. math please help

    let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=____

    asked on October 30, 2014
  45. math

    A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

    asked on December 8, 2013
  46. math alegebra

    A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?

    asked on December 8, 2013
  47. math

    lim x-->-9 x^2+10x+9 / x-9

    asked on September 12, 2015
  48. Algebra

    Find the 1st four hexagonal numbers and the formula The difference of two squares a2 - b 2 can be found in 16sq2 – 13sq2 = 3(16 + 13) = 3 . 29 = 87

    asked on April 1, 2013
  49. math

    Express f(x)in the form f(x)=(x-k)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=-2 f(x)=____

    asked on November 19, 2014
  50. ino literacy

    what is the call number of the oldest copy of Ellison's Shadow And Act

    asked on August 26, 2007
  51. math please check answer

    Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x) =0 ?

    asked on November 20, 2014
  52. algebra

    Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 Is f(x) =0 ?

    asked on November 20, 2014
  53. math, please help

    Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 f(x)=_____

    asked on November 20, 2014
  54. math

    find the slope of the line containing the pair of points. (-5,-10) and (-4,-3)

    asked on October 31, 2014
  55. Algebra

    let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=___

    asked on October 30, 2014
  56. algebra

    midpoint (-5,-15) endpoint (-13,-8). find the other endpoint

    asked on September 24, 2014
  57. math

    Express f(x)in the form f(x)=(x-k)q(x)+r for the given values of k. f(x)=x^3+6x^2+10x+4, k=-2 f(x)=____

    asked on November 19, 2014
  58. math

    Evaluate the function f(x)=-3x+9 at the indicated values. a). f(2)=_____ simplify your answer b).f(-2)=_____ simplify your answer

    asked on October 31, 2014
  59. math help

    Express f(x) in the form f(x)=(x-k)q(x)+r for the given value of k. f(x)=x^3 +6x^2 +10x+4,k=-2 f(x)=_____

    asked on November 20, 2014
  60. math thanks for your help

    -2;p(x)=3x^3+5x-6 is -2 a zero of the polynomial(x) ?

    asked on November 20, 2014
  61. algebra

    let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=____

    asked on October 30, 2014
  62. math

    2x^2+5x-1=0

    asked on October 1, 2014
  63. Algebra

    25sq2 – 21sq2 = 4(25 + 21) = 4 . 46 = 184

    asked on April 1, 2013
  64. 5th grade

    hwo would I calculate the original discount price of and item if coast 150 and was sold to me at 75

    asked on December 23, 2010
  65. math thanks for your help

    let f(x)=-4x+7. find and simplify f(n) f(n)=_____ simplify your answer

    asked on October 30, 2014
  66. math please help

    -2;p(x)=3x^3+5x-6 is -2 a zero of the polynomial(x) ?

    asked on November 20, 2014
  67. math really need help!

    let f(x)=-5x+6 find and simplify f(x+2) f(x+2)=___

    asked on October 30, 2014
  1. Calculus

    What does it mean by "upper and lower estimates?" How do I find these?

    posted on May 7, 2018
  2. Writing skills

    What corrections should be made to this sentence?

    posted on May 15, 2017
  3. Writing skills

    Thank you Ms.Sue should I make any corrections to this sentence.

    posted on May 15, 2017
  4. Math

    Yes, Rob had a larger pizza

    posted on April 4, 2016
  5. math

    you shouldn't be a tutor if you don't want to help people.

    posted on December 4, 2014
  6. math

    Thanks DonHo

    posted on December 4, 2014
  7. math

    Thanks Reiny

    posted on December 4, 2014
  8. math

    linear

    posted on December 3, 2014
  9. algebra

    x=17 x-7=10+17=27+17=44+13=57

    posted on December 2, 2014
  10. math, please help!

    5249

    posted on March 19, 2014
  11. Algebra 2

    Any function? The simplist way to do this would be to assume a cubic function with roots -1, -5, and 3. This would mean it would be factorable into: (x+1)(x+5)(x-3). Simply multiply these three !@#$%^&tions together and there's an answer.

    posted on December 8, 2013
  12. earth

    thank you bobpursley, and Anne so much for your help. you are the best

    posted on December 4, 2013
  13. algebra

    Thank you so much.

    posted on October 7, 2013
  14. algebra

    Thank you so much Ms. Sue

    posted on October 6, 2013
  15. algebra

    492

    posted on October 6, 2013
  16. vocab

    I NOT UNDERSTAND YOUR QUESTION SORRY

    posted on May 5, 2008
  17. spell

    I LIKE TO SPELL RIGHT BUT I CAN`T SPELL IT RIGHT.NOW I WANT YOU HELP ME OKAY,AND I WANT TO STUDY WITH YOU...PLEASE.I WANT TO SCORE A FOR ENGLISH SUBJECT.

    posted on May 5, 2008