Most popular questions and responses by Gerald
  1. Precalc 2

    At a state fair truck pull, two pickup trucks are attached to the back end of a monster truck as illustrated in the figure. One of the pickups pulls with a force of 1600 pounds and the other pulls with a force of 3200 pounds with an angle of 45° between

    asked on November 23, 2014
  2. Math

    What is four times the difference between 57 and 29

    asked on September 12, 2017
  3. calculus

    1. Which of the following expressions is the definition of the derivative of f(x) = cos(x) at the point (2, cos(2))? 2. Find the derivative of f(x) = |x + 2| at the point (1, 3) 3. Find f '(x) for f(x) = -2x3 + 3x2 - x + 15. 4. Find all values of x on the

    asked on January 15, 2015
  4. Math -- Calculus

    Hours of Daylight as a Function of Latitude Let S (x) be the number of sunlight hours on a cloudless June 21, as a function of latitude, x, measured in degrees. (a) What is S (0)? (b) Let x0 be the latitude of the Arctic Circle (x0 ≈ 66◦ 30′ ). In

    asked on October 10, 2008
  5. calculus

    At noon, Ship A is 100 km west of ship B. Ship A travels south at 35 km/h. Ship B travels North at 25 km/h. At 4 pm, how fast the distance between them change?

    asked on February 4, 2015
  6. history

    scientific invention that revolutionised food preservation during the 19th century

    asked on December 15, 2016
  7. chem.

    How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 12C?

    asked on March 31, 2008
  8. GLBT Studies

    What are some arguments that can be used against a religious racist who argues gay people should have no rights?

    asked on October 3, 2014
  9. math

    What is the minimum number of identical square tiles required to completly tile a rectangle having dimensions of 3 3/5 units by 4 1/5?

    asked on February 10, 2010

    1.Chemistry Question: A 0.1 M solution of acetic acid is titrated with 0.05M solution of NaOH. What is the pH when 60% of the acid has been neutralized? The equilibrium constant (Ka) for acetic acid is 1.8x10^-5 2. Chemistry question: On average, how far

    asked on August 21, 2010
  11. English

    What literary device does the following sentence use? "a world ruled by judging eyes"

    asked on July 13, 2015
  12. Chemistry

    What is the boiling point of ethanol when the atmospheric pressure is 60kPa?

    asked on April 14, 2012
  13. TR Roosevelt Relations

    Hi, Can any one tell me the relations between TR Roosevelt and Tadasu Hayashi? Were there any tensions between these too? Thank you for using the Jiskha Homework Help Forum. Here are some sites for you:

    asked on February 24, 2007
  14. drinking water treatment

    What is the saturation concentration of oxygen for this water( atmospheric pressure)

    asked on September 13, 2018
  15. writing

    What does voice refer to in a sentence? What does tense refer to?

    asked on January 27, 2009
  16. math

    Write a two-column proof. If FG ⊥ IJ and IG ≅ JG, then FI ≅ FJ

    asked on December 16, 2017
  17. business

    1.Following is the projected net income stream associated with the use of Zartek technology. (Note: this net income stream does not take into account that Zartek’s owners invested $2,000 to develop Zartek in Year 0.) Globus Maximus Enterprises would like

    asked on April 18, 2010
  18. Foreign Languages- Spanish

    Hi, How would you say, "We should acknowledge the many achievements that women have brought to the table today." I need to include an idiomatic expression. Thanks so much! Thank you for using the Jiskha Homework Help Forum. "To bring to the table" is an

    asked on March 26, 2007
  19. Physics

    As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57 m's (128 mph) in just 3.5 s.

    asked on April 25, 2016
  20. calculus

    5. Find the equation of the tangent line to the graph of f(a) = -sec(a) at the point (0, -1) 6. Differentiate y = sin(x)tan(x). 7. Find f '(x) for f(x) = sin(x)cot(x). 8. Find the derivative of the function f(x) = cos^2(x) + tan^2(x) 9. Find f '(x) for

    asked on January 15, 2015
  21. Science

    What is the boiling point of ethanol when the atmospheric pressure is 60kPa? I decided to repost this ? under Science instead of Chemistry. Thanks.

    asked on April 14, 2012
  22. MATH

    1. Let triangle ABC be a triangle such that angle ACB is 135 degrees. Prove that AB^2 = AC^2 + BC^2 - (Root 2) x AC x BC 2. Simplify: 2/1! - 3/2! + 4/3! - 5/4! + ..... + 2010/2009! - 2011/2010! Where k! is the multiplication of all numbers up to k (e.g. 5!

    asked on August 21, 2010
  23. Algebra

    How to write -3x + 4y = 11 as a function of x add 3x to each side, then divide by four. y= 3/4 x + 11/4 (Remember this is an "and" statement) or in function notation, y(x)= 3/4 x + 11/4

    asked on June 29, 2007
  24. Populists

    Are the populists liberal, reactionary or radical? Are there any websites that can view the different perspectives on populists during the late 1800's? -thanks The term liberal, reactionary, and radical are not very useful for describing views.

    asked on January 4, 2007
  25. Math

    Find twice the sum of 18 and 56

    asked on September 13, 2017
  26. algerbra

    Find the distance between points P(3,-6) and Q(6,4). Round to the nearest tenth.

    asked on February 17, 2015
  27. algebra

    The area of a rectangle is 44yds squared, and the length of the rectangle is 3yds less than twice the width. what is the length and width

    asked on February 16, 2014
  28. Multivariable Calculus

    I was asked to state as a product of speed and unit vector a mass traveling at 1000ft/sec along the vector . I know that v/|v| gives me the unit vector, which is (1/2i, sqrt(3)/2j). Do I keep the speed as given?

    asked on September 4, 2012
  29. Algebra II

    Simplify (n^2+3)(n^2-5n+6)

    asked on July 1, 2011
  30. 7th grade

    I trying to help my son answer this question. 1/4y for y = 16

    asked on August 29, 2010
  31. Math

    George can spend $34.80 for his dinner. He wants to tip the waiter 20% of the cost of his meal. How much money does he spend on the tip? Translate the question into an equation. Do not solve.

    asked on October 7, 2007
  32. AP US History

    How did the war of Spanish succession affect Spain and her colonies? thx Here are many websites with interesting information about this particular war and its results: ... especially ~~>

    asked on October 23, 2006
  33. Science-Physics: Space Station

    Hello, I am having trouble with this physics problem. Any suggestions with this? Sketch and calculate a spacestation that would meet the requirement of having a 2m tall person experience a 10 % difference in centripetal acceleration between bottom of feet

    asked on October 11, 2006
  34. literature

    After sneaking in the abode, had he met this influential figure, he would cut his carpus. Who was he?

    asked on June 6, 2017
  35. computer science

    write a program using pseudocode that give out the students grade after inputting his marks A*>=90 A>=80 B>=70 C>=60 D>=40 E>=30 U

    asked on January 28, 2017
  36. math

    if i deposit inr 1000 monthly for 35 years what will be the amount after 35 years ?

    asked on April 8, 2016
  37. math

    handi divided a board that is 52 inches long into two equal find the length of each piece,she used the division expreesion 52 divided by two

    asked on November 11, 2014
  38. math

    Find the equation of the line tangent to f(x)=3x^2-2x-1 at the point where x=2

    asked on August 1, 2013
  39. Math formula

    If I had a metal circle and the circumference of that measured 6.750 inches long, how long would 38 degrees of that circle be in inches.

    asked on December 12, 2011
  40. properties of addition

    what is 3 1/4 plus [3 1/4 plus 5 1/5]

    asked on February 17, 2011
  41. Physics

    An electron is a subatomic particle (m = 9.11 *10^-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.31 * 10^5 m/s to a final velocity of +2.21 * 10^6 m/s while traveling a distance

    asked on September 20, 2010
  42. health care

    which of the following methodologies determine payment before services are received a. fee-for-service payment system or b. capitation system

    asked on September 5, 2009
  1. Math


    posted on September 13, 2017
  2. Physics

    value up to but not quite 1.00.

    posted on August 26, 2017
  3. Math

    1/35 There are 3C2 ways in getting both toy cars, and our sample space is 15C2. Thus, the probability becomes: 3C2/15C2 = 1/35

    posted on April 22, 2017
  4. Art.

    LAMP is correct

    posted on April 4, 2017
  5. English


    posted on December 20, 2016
  6. Grammar

    action verb

    posted on December 18, 2016
  7. english


    posted on December 16, 2016
  8. Socials

    Education affects population growth in that if people are not educated,such as the doctors who help in birth deaths would now and then hence lowering population.

    posted on December 13, 2016
  9. English

    Canand lost the game against England at 2 to3. Canand won the game against England at three to two. Canand lost the game against England at 2-2.

    posted on December 13, 2016
  10. English

    It took 5 days for him to read the book.

    posted on December 13, 2016
  11. English


    posted on December 13, 2016
  12. English

    I have only one pack of of wet tissue. should be i have one packet of tissue. spelling mistake.

    posted on December 13, 2016
  13. San

    denser the rain forest becomes

    posted on December 13, 2016
  14. English 3

    He becomes hopeful

    posted on December 13, 2016
  15. Calculus

    the velocity of a car (measured in ft/sec) "t" seconds. after starting from rest and moving in a straight line is given by f(t)=2t (0

    posted on March 10, 2015
  16. Precalc 2

    Thank you for helping me set this up Reiny.

    posted on November 23, 2014
  17. GLBT Studies

    I want to change schools but my parents won't let me.

    posted on October 4, 2014
  18. GLBT Studies

    I go to a Christian school and the priest calls me a sodomite :(

    posted on October 3, 2014
  19. GLBT Studies

    Yes. Some scholars actually think Jesus was a gay man :)

    posted on October 3, 2014
  20. HEALTH

    The muscles of the upper extremity include those that attach the scapula to the ... The muscles that move the forearm are located along the humerus, which ... so there for b is not right c is the right one

    posted on March 16, 2014
  21. health


    posted on March 12, 2014
  22. health


    posted on March 12, 2014
  23. Chemistry

    where did 0.03moles come from

    posted on October 6, 2013
  24. Math


    posted on April 22, 2013
  25. Multivariable Calculus

    Most probably I misunderstood the question and quite frankly I thought this might be the answer, but in the answer box it did ask for the unit vector and the speed, which confused me. (This is a problem that I have already answered rightly or wrongly).

    posted on September 4, 2012
  26. math

    12 bags

    posted on September 15, 2011
  27. 5th grade

    19 over 27 in simplest form

    posted on January 19, 2011