# 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

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.

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

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.

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

6. ## math

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

7. ## math

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

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

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.

10. ## math

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

11. ## biochemistry

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

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