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    Which set of rectangular coordinates describes the same location as the polar coordinates (3squareroot2,3pi/4?

    Which set of rectangular coordinates describes the same location as the polar coordinates (3squareroot2,3pi/4)? 1) (-3,3) 2) (-3,-3) 3) (-3square2,3square2) 4) (3,-3)
  2. Y

    Evaluate the following expression: 4(3,5)-2(7,-2)?

    a) (-4,7) b) (-2,24) c) (16,16) d) (-1,18) PLEASE HELP!! :)
  3. Y

    Suppose a triangle has sides a, b, and c, and that a2 + b2 < c2. Let be the measure of the angle opposite the?

    Suppose a triangle has sides a, b, and c, and that a2 + b2 < c2. Let be the measure of the angle opposite the side of length c. Which of the following must be true? Check all that apply. a) The triangle is not a right triangle. b) costhetha<0 c) The triangle is a right triangle. d) Thetha is...
  4. Y

    In order to apply the law of cosines to find the measure of an interior angle, it is enough to know...? A. The?

    In order to apply the law of cosines to find the measure of an interior angle, it is enough to know...? A. The lengths of all three sides of the triangle. B. The area of the triangle C. At least two of the angles of the triangle and the length of one of its sides
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