\[ 31.4159 = 2 imes 3.14159 imes r \]
![\[ 31.4159 = 2 imes 3.14159 imes r \]](https://soloferat.biz.id/images/-314159--2-imes-314159-imes-r-.jpg)
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- \[ ext{speed} = rac{300 ext{ km}}{3 ext{ hr}} = 100 ext{ km/hr} \]
- \[ 3^5 imes 3^{-2} = 3^{5-2} = 3^3 \]
- \[ rac{3^3}{3^3} = 3^{3-3} = 3^0 = 1 \]
- \[ r = rac{31.4159}{2 imes 3.14159} = rac{31.4159}{6.28318} pprox 5 \]
- \[ f'(x) = 12x^2 - 10x + 2 \]
- \[ a_4 = 5 \cdot 3^{4-1} = 5 \cdot 3^3 = 5 \cdot 27 = 135 \]
