Problem #5: Problem #5: +8y=²+5 in the Cartesian form y f(x). Enter the function f(x) into the answer box below. Do not include 'y = ' in your answer. Enter your answer as a symbolic function of x, as in these examples Problem #6: Express the parametric curve x Problem #6: A curve is given by Problem #7: Save x = ³ + 31-9, y = t³ - 127² +21t. Which one of the following describes the entire set of values where the curve is decreasing? (A) (-0, 0) (1,7) (B) (-∞0, 1) (7, ∞0) (C) All possible t-values (D) (-∞, -1) (1, 0) (E) No such t exists (F) (-1, 1) (G) (1,7) (H) (0, 1) (7,00) t+8' Select v Save Problem #7: Find the arc length of the parametric curve x = 5+21², y = 4 +147³, 0≤ t ≤ 1. Enter your answer symbolically, as in these examples

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