amaa

Popular questions and responses by amaa
  1. precalculus

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. tan θ = − sqrt 3/3

    asked on November 30, 2012
  2. math

    A tree on a hillside casts a shadow 200 ft down the hill. If the angle of inclination of the hillside is 23 to the horizontal and the angle of elevation of the sun is 54, find the height of the tree. Please round the answer to the nearest integer.

    asked on November 29, 2012
  3. precalculus

    Find the focus, directrix, and focal diameter of the parabola. 9x + 7y2 = 0 my answers were focus = -9/28,0 fd =9/7 directrix= -9/28 (this ans. is incorrect) what am I missing? pls help

    asked on December 1, 2012
  4. math

    Find the values of the trigonometric functions of t if tan t= 3 and the terminal point of t is in quadrant III.

    asked on November 29, 2012
  5. precalculus

    A pilot flies in a straight path for 2 h 30 min. She then makes a course correction, heading 7 degrees to the right of her original course, and flies 3h in the new direction. If she maintains a constant speed of 695 mi/h, how far is she from her starting

    asked on December 4, 2012
  6. math

    Find the vertices, foci, and eccentricity of the ellipse. 64x^2 + 81y^2 = 5184

    asked on November 30, 2012
  7. math

    Find the vertices, foci and eccentricity of the ellipse.Thank you 9x^2 + y^2 = 81

    asked on November 30, 2012
  8. precalculus

    Find all solutions of the system of equations. (If there is no solution, enter NO SOLUTION.) 4x^2− 27y^3 = 35 8x^2+54y^3= 74

    asked on December 1, 2012
  9. precalculus

    Find the focus, directrix, and focal diameter of the parabola. x = −4y2 I answered everything right except the directrix. which my ans was -1/16.

    asked on December 1, 2012
  10. math

    Find the vertices, foci, and eccentricity of the ellipse. Thank you. x^2/16 + y^2/25 = 1

    asked on November 30, 2012
  11. biochemistry

    discuss at least six factors affecting the performance of an enzyme. Thank you.

    asked on December 1, 2012
  12. precalculus

    Find all solutions of the system of equations. Order your answers from smallest to largest x, then from smallest to largest y.) x^2 + y2= 53 x2− y2= 3

    asked on December 1, 2012
  1. math

    thanks I got it right.

    posted on November 30, 2012
  2. geophysical science

    i think the displacement will be zero because you went back so you displaced but back to your normal position. but i am not sure of the distance traveled.

    posted on June 8, 2010