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CA - Ch. 1 Review

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  • Simplify.
    (30/149) - (21/149)i
  • Solve the inequality. Write your answer in interval notation. x^2 - 6x + 9 < 16
    (-1, 7)
  • Solve the quadratic using any method.
    r = 7 and r = -3
  • Solve the inequality. Write your answer in interval notation.
    (-inf, 3) U[7, inf)
  • Solve the inequality. Write your answer in INTERVAL NOTATION.
    (-inf, 0] U {2, inf)
  • Find the x-intercepts of the function. f(x) = x^2 - 64
    x = 8 and x = -8
  • Solve.
    x = 26 and x = -10
  • Solve the equation.
    8/3 = 2.7
  • Simplify.
    -4-2i
  • Use the information provided to write the standard form of the equation of the circle.
    (x - 5)^2 + (y - 9)^2 = 18
  • Solve by COMPLETING THE SQUARE.
    n = -1 + sqrt(67) n = -1 - sqrt(67)
  • Solve the equation. Check for extraneous solutions.
    n = 2
  • Solve the inequality. Write your answer in INTERVAL NOTATION.
    [-15, 9]
  • Simplify.
    -54isqrt(2)
  • Test the equation for symmetry. (x-axis, y-axis, and origin) y = -x^4+4x^2+5
    only y-axis symmetry