School a and b are competing in an academic contest. at the beginning of the final round, school a has 174 points and school b has 102 points, in the final round, correct answers earn 10 points and incorrect answers loose 6 points. school a hives the same number of correct and incorrect answers during the final round. school b gives no incorrect answers and the same number of correct answers as school a. the contest ends with te two schools tied. which equation models the scoring in the final round and outcome of the contest?

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Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)