In this item, we are to determine the value of x first and substitute the computed value to determine the lengths of QR and QS. Since we are given that two segments are perpendicular bisector of the isosceles triangle then, their lengths should also be equal. QR = QS Substituting with the given equation for each. x/2 + 2 = x - 10
Multiply both sides of the equation by 2, x + 4 = 2x - 20 Transpose all terms with variables to one side of the equation and the constants to the other. x - 2x = -20 - 4 -x = -24 x = 24
Your answer would be C. x = 6, y = 5 This is because if you plug the numbers in to the inequality, we get: (4 × 5) ≥ (3 × 6) + 2 20 ≥ 18 + 2 20 ≥ 20 which is correct.
