10th grade math help

How do you solve?
3-3sinx-2cos^2(x) = 0

asked by Sophie
  1. how do you solve x2+16x-80/x2-16

    posted by reema
  2. explain/justify without converting to standard form.

    3y=(x-4)2-9

    the two (2) in the problem is squared.

    posted by Tyshah
  3. quan is shoppin. he can buy 2 pairs of pants and 1 shirt for $79.85 before tax is added. he cab buy 1 pair of pants and 2 shirts for $69.85 before tax is added. how much does a shirt cost

    posted by brinson
  4. y=240*x squared

    posted by Anonymous
  5. nedd help n algebra 1

    posted by tinker
  6. The 10th grade class at Johnsonville High School has 50 students. There are 20 students that take Algebra and 15 students that take Geometry. Five students take both Algebra and Geometry.


    How many students in the 10th grade class are enrolled in neither Algebra nor Geometry?

    posted by jon

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