plz my questions those who know its humble request 25 ,26,28 plz this question
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26) P = area of circle/area of triangle
=> area of ∆ = 1/2×10×24 => 120 cm²
=> area of circle = πr² => 22/7 × 3.5²
=> 11 × 3.5 => 38.5 cm²
therefore P =38.5/120 => 0.321
28) 4x² - 3x - 7 => [a = 4, b = - 3 and c = - 7]
=> 4x² - 7x + 4x - 7 = 0
=> x(4x - 7) + 1(4x - 7) = 0
=> (x + 1) (4x - 7) = 0
=> x + 1 = 0 => x = -1
=> 4x - 7 = 0 = x = 7/4
therefore two zeros are - 1 and 7/4
now sum of zeros = 7/4 - 1 => (7 - 4)/4
=> 3/4 => -(-3)/4 => - b/a verified
similarly product of zeros = -1 × 7/4
=> - 7/4 => c / a => verified
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sorry Parekh and plzz inbox me
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