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I. 104x² + 9x - 35 = 0 104x² + 65x - 56x - 35 = 0 13x (8x + 5) – 7(8 x + 5) = 0 (13 x - 7) (8x + 5) = 0 ∴ x = 7/13 , - 5/8 II. 72y² - 85y + 25 = 0 72y² - 40 y - 45y + 25 = 0 8y(9 y – 5) - 5 (9 y – 5) = 0 (8 y - 5)(9 y – 5) = 0 ∴ y = 5/8 , 5/9 Hence, x < y
(804/65) ÷ (11/798) × (129/131) = ?
1560.182 ÷ √168 + √143 * √224 – 4649.87 ÷ 30.883= ?
15.35 x (58.25 + 63.98) = ? + 1029.78
√1600.13 x √4355.99 ÷ 329.98 + 1223.23 = ?
210.34 + 16.92² + ?³ = √900.56 * 31.23
1299.99 ÷ 20.21 = ? + 325.985 - (180 ÷ 6 × 24.03)
In a cyclic quadrilateral ABCD, angle A = 70 degrees and angle B = 100 degrees. What is the measure of angle C?
60.22 of 449.98% + 459.99 ÷ 23.18 = ?
35.1% of 1599 = ?–(449.96 ÷ 6.12) × 2