ATQ, Arrange the data in ascending order: 175,177,178,179,180,181,182,183,184 Since the number of observations (n = 9) is odd: Here, n = 9, so the median is: The median height is 180 cm.
I. 5x + y = 37
II. 4y+ x = 15
I. 40x² + 81x + 35 = 0
II. 63y² + 103y + 42 = 0
The quadratic equation (p + 1)x 2 - 8(p + 1)x + 8(p + 16) = 0 (where p ≠ -1) has equal roots. find the value of p.
I. 18p²- 21p + 6 = 0
II. 16q² - 24q +9 = 0
I. 6 y² + 11 y – 7= 0
II. 21 x² + 5 x – 6 = 0
I. 63x² + 146x + 80 = 0
II. 42y² + 109y + 70 = 0
I. x2 – 10x + 21 = 0
II. y2 + 11y + 28 = 0
I. 6x² + 37x + 45 = 0
II. 3y² - 11y + 6 = 0
(i) 2x² – 12x + 16 = 0
(ii) 2y² – 20y + 48 = 0
I. x2 – 18x + 81 = 0
II. y2 – 3y - 28 = 0