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What you should do in this case is to use the following trinonometric relationship: cosx = C.A / h Where C.O: Adjacent leg. h: hypotenuse. Substituting: cos (22) = (x) / (11) Clearing x: x = 11 * cos (22) x = 10.2 Answer: The value of x is x = 10.2
C. (1, –4) B. y = 0.5x² + 1 D. The vertex is (0,-4.5) A. f(x) = –10x², f(x) = 2x², f(x) = 0.5x²
