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Simplifying 98 = 44.1t + 0.5 * 9.8t * t Multiply 0.5 * 9.8 98 = 44.1t + 4.9t * t Multiply t * t 98 = 44.1t + 4.9t2 Solving 98 = 44.1t + 4.9t2 Solving for variable 't'. Reorder the terms: 98 + -44.1t + -4.9t2 = 44.1t + -44.1t + 4.9t2 + -4.9t2 Combine like terms: 44.1t + -44.1t = 0.0 98 + -44.1t + -4.9t2 = 0.0 + 4.9t2 + -4.9t2 98 + -44.1t + -4.9t2 = 4.9t2 + -4.9t2 Combine like terms: 4.9t2 + -4.9t2 = 0.0 98 + -44.1t + -4.9t2 = 0.0 Begin completing the square. Divide all terms by -4.9 the coefficient of the squared term: Divide each side by '-4.9'. -20 + 9t + t2 = 0 Move the constant term to the right: Add '20' to each side of the equation. -20 + 9t + 20 + t2 = 0 + 20 Reorder the terms: -20 + 20 + 9t + t2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 9t + t2 = 0 + 20 9t + t2 = 0 + 20 Combine like terms: 0 + 20 = 20 9t + t2 = 20 The t term is 9t. Take half its coefficient (4.5). Square it (20.25) and add it to both sides. Add '20.25' to each side of the equation. 9t + 20.25 + t2 = 20 + 20.25 Reorder the terms: 20.25 + 9t + t2 = 20 + 20.25 Combine like terms: 20 + 20.25 = 40.25 20.25 + 9t + t2 = 40.25 Factor a perfect square on the left side: (t + 4.5)(t + 4.5) = 40.25 Calculate the square root of the right side: 6.34428877 Break this problem into two subproblems by setting (t + 4.5) equal to 6.34428877 and -6.34428877.Subproblem 1
t + 4.5 = 6.34428877 Simplifying t + 4.5 = 6.34428877 Reorder the terms: 4.5 + t = 6.34428877 Solving 4.5 + t = 6.34428877 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + t = 6.34428877 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + t = 6.34428877 + -4.5 t = 6.34428877 + -4.5 Combine like terms: 6.34428877 + -4.5 = 1.84428877 t = 1.84428877 Simplifying t = 1.84428877Subproblem 2
t + 4.5 = -6.34428877 Simplifying t + 4.5 = -6.34428877 Reorder the terms: 4.5 + t = -6.34428877 Solving 4.5 + t = -6.34428877 Solving for variable 't'. Move all terms containing t to the left, all other terms to the right. Add '-4.5' to each side of the equation. 4.5 + -4.5 + t = -6.34428877 + -4.5 Combine like terms: 4.5 + -4.5 = 0.0 0.0 + t = -6.34428877 + -4.5 t = -6.34428877 + -4.5 Combine like terms: -6.34428877 + -4.5 = -10.84428877 t = -10.84428877 Simplifying t = -10.84428877Solution
The solution to the problem is based on the solutions from the subproblems. t = {1.84428877, -10.84428877}
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