76 inches in feet

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الحجم = \( \pi r^2 h = \pi (2^2)(10) = 40\pi \).
تقريب \( \pi \approx 3.14 \):
الحجم ≈ \( 40 \times 3.14 = 125.6 \).
#### 125.6
يحتوي معادلة تربيعية \( x^2 - 5x + 6 = 0 \) على حلين. ما هما؟
عامل: \( (x - 2)(x - 3) = 0 \).
الحلول: \( x = 2 \) و \( x = 3 \).
يحتوي متتالية هندسية على حد أول 3 ونسبة مشتركة 2. ما هو الحد الخامس؟
\( a_n = a_1 \times r^{(n-1)} \)
\( a_5 = 3 \times 2^{4} = 3 \times 16 = 48 \).