Popular questions and responses by Yadira
  1. Pre-Calc/Math

    Prove Identity: (1-cos2x/ tan x) = sin2x

    asked on May 14, 2012
  2. Pre-Calc/Math

    Given cos x=2/3 and 3pi/2

    asked on April 30, 2012
  3. math

    Which pair of numbers has 8 as a common multiple?

    asked on January 7, 2016
  4. Pre-Calc/Math

    Use factoring, the quadratic formula, or identities to solve cos(x)+1=sin^(2)x. Find all solutions on the interval [0, 2pi)

    asked on May 23, 2012
  5. Pre-Calc/Math

    Prove identity: (sec x/csc x) + (sin x/cos x)=(2/cot x)

    asked on May 14, 2012
  6. English

    Place a comma where necessary and a semicolon where necessary. 1) I will not buy that that carp it is far too expensive. 2) He still cannot use Word consequently, Tara must stay here. 3) I noticed the baker, Ian, jogging in the park every day but he never

    asked on May 1, 2012
  7. Pre-Calc/Math

    If cosx= -2/3 and pi/2, find the exact value of cos(pi/3-x)

    asked on April 30, 2012
  8. Pre-Calc/Math

    Prove the identit: cosxcotx+sinx=cscx

    asked on April 30, 2012
  9. Algebra

    Building windows: Window World, Inc., is responsible for designing new windows for the expansion of the campus chapel. The current design is shown in the figure. The metal trim used to secure the perimeter of the frame is 126″ long. If the maximum window

    asked on April 22, 2012
  10. algebra

    what is this answer I am an even number i am less than 65,but greater than 50 I am divisible by 5

    asked on February 29, 2012
  11. chemistry

    If 50.0 grams of copper metal is added to a silver nitrate solution, what mass of silver is produced if copper 2 nitrate is also formed?

    asked on July 27, 2011
  12. physcial science

    three term why physical science is used in life

    asked on September 7, 2010
  1. History

    A !!!!!!!!

    posted on October 5, 2018
  2. math

    Sara has 6 necklaces, but her mother will only allow her to wear two at a time. How many different ways can Sara wear two necklaces? A. 30 B. 15 C. 360 D. 12

    posted on January 9, 2018
  3. Pre-Calc/Math

    Ohh it was hard me :/ .Do you think you can answer my other questions?

    posted on April 30, 2012
  4. Pre-Calc/Math

    Thank You! :D

    posted on April 30, 2012