Question 4 • Advanced Financial Algebra
Use the ramp’s length as the hypotenuse of a right triangle. The original angle is sin⁻¹(12/30) ≈ 23.58°, and the shortened ramp’s angle is sin⁻¹(12/18) ≈ 41.81°. The change is about 18.23°, so the cost is 18.23 × $60 ≈ $1,093.93. The correct choice is C, $1,093.93.
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