Most popular questions and responses by Les
  1. Math

    Determine the projection of u = 1.6i + 3.3j in the v = -2.1i - 0.5j direction a. 0.8i +0.2j b. 2.3i = 0.5j c.-0.6i-1.3j d. -1.2i-1.1j

    asked on April 2, 2017
  2. math

    Find the angle between u=(8,-3) and V=(-3,-8). Round to the nearest tenth of a degree

    asked on April 2, 2017
  3. statistics

    One of nature's patterns connects the percent of adult birds in a colony that return from the previous year and the number of new adults that join the colony. Following are data for 13 colonies of sparrowhawks: Percent return 73 61 79 54 75 62 53 46 57 50

    asked on January 11, 2015
  4. 12th grade

    If a car is accelerating downhill under a net force of 3674, what additional force would cause the car to have a constant velocity?

    asked on October 3, 2010
  5. Graphs

    The graph of y = f(x) is shown below. Assume the domain of f is [-4,4] and that the vertical spacing of grid lines is the same as the horizontal spacing of grid lines. The points (a,4) and (b,-4) are on the graph of y = f(2x) Find a and b.

    asked on April 12, 2016
  6. Science

    A 15kg tuna fish moving horizontally to the right at 5m/s swallows a 2kg fish that is swimming to the left at 7.5 m/s .What is the speed of the tuna fish immediately after,if the force exerted on the fish by the water can be neglected?

    asked on February 28, 2019
  7. trigonometry

    An airplane flying at an altitude of 5100 ft is 12000 feet from an airport. what is the angle of elevation of the plane? I don't know how to start the problem.

    asked on September 21, 2014
  8. chemistry

    Compute the freezing point of this solution: 25.5 g C7H11NO7S (4-nitro-2-toluenesulfoinoic acid dihydrate) in 100 g H2O. (nonionizing solute)

    asked on August 4, 2010
  9. science

    Please unscramble acronoc,glataroil, frete, estoroit, whockudoc. http://wordsmith.org/anagram/

    asked on March 22, 2007
  10. reading

    Why do you think the earth's crust is thicker under land than under bodies of water?

    asked on December 5, 2012
  11. Chemistry

    What is the total ionic and net ionic equation for this aqueous reaction?: Sr(OH)2(aq) + HClO2 (aq) -I wrote the molecular as: Sr(OH)2 (aq) + HClO2 (aq) ---> SrClO2 (aq) + H20 (l) -Is the Total Ionic: Sr2+ (aq) + 2OH- (aq) + H+ (aq) + 2ClO- (aq) ---> Sr2+

    asked on December 12, 2016
  12. Math

    Deternmine the volume of a cylinder with a radius of 5cm and a height of 30cm. How long would it take it to fill this cylinder with water if you were using a fountain with a flow rate of 2400 mL/min? 1cm^3=1mL

    asked on September 19, 2016
  13. Algebra

    Find an equation of an ellipse satisfying the given conditions: ​Foci: ​(−2​,0) and (2​,​0) Length of major​ axis: 8 Thank you

    asked on November 7, 2016
  14. geometery

    a worker walked 8ft. upa ramp and was 3ft. above ground level. If he walkes an additional 12ft. up the ramp,how many ft. will he be from the ground?

    asked on June 3, 2013
  15. math

    how to convert 4.50 cubic feet to milliliters

    asked on February 8, 2011
  16. 5th grade

    why the climate in the appalachian mountains would be warmer the the rocky mountains

    asked on August 27, 2009
  17. Chemistry

    How many aluminum atoms are there in 15.0mg of Al2O3?

    asked on December 12, 2016
  18. math

    Find the constant c that makes the quadratic x^2 + 7x + c the square of a binomial.

    asked on April 12, 2016
  19. trig

    determine the period of y = tan 2x

    asked on July 4, 2012
  20. English

    Consider the sentence: Jim wore a red jacket and hat. Does the adjective red apply to both the jacket and the hat? In my opinion it does but it lacks clarity. Is there a reference anywhere to support either side of this argument? There are strong pros and

    asked on May 1, 2007
  21. Math

    Find the smallest value of x such that x^2+6x + 9 = 24.

    asked on April 12, 2016
  22. 6th grade language arts

    What is a mood/tone map?

    asked on November 3, 2009
  1. Math

    A B C B

    posted on March 2, 2017
  2. English


    posted on December 14, 2016
  3. Chemistry

    Thank you bobpursley!!!

    posted on December 12, 2016
  4. Math


    posted on October 11, 2016
  5. Anthropology


    posted on April 12, 2016
  6. 7th grade Math quick help Ms. Sue

    seriously guys? i go to connections too and we all need help sometimes just calm down

    posted on September 25, 2015
  7. religion

    Speaking as a westerner who is studying Buddhism, as a mode of living not necessarily a religion, I also find myself wondering whether or not there was only one Buddha. This question occurred to my while reading "Alone with Others an Existential Approach

    posted on March 20, 2009