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About 90% of the ozone in the Earth’s atmosphere is found in the region called the Stratosphere. This is the atmospheric layer between 16 and 48 kilometers (10 and 30 miles) above the Earth’s surface.
I. 2x² - 9x + 10 = 0
II. 3y² + 11y + 6 = 0
I. 8x – 3y = 85
II. 4x – 5y = 67
I. x² + 3x – 154 = 0
II. y² + 5y – 126 = 0
I. 35x² - 51x + 18 = 0
II. 30y² + 17y – 21 = 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. 5x² + 17x + 6 = 0
II. 2y² + 11y + 12 = 0
...I. 2x2 – 19x + 45 = 0
II. y2 – 14y + 48 = 0
I. 5x² - 24 x + 28 = 0
II. 4y² - 8 y - 12= 0
I. x2 - 20x + 96 = 0
II. y2 - 23y + 22 = 0
Quantity I: The price of rice is decreased by 30%, by how much % the consumption is increase so that the expenditure will decreased by 10%?
Quant...