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人気のある代数 >

37.5=10+(69.09)*(v^2)/(20)

解

37.5 = 10 + (69.09) \cdot \frac{v ^{2}}{20}

解

v = \frac{1.99016 E 15}{2.5 E 14}, v = - \frac{1.99016 E 15}{2.5 E 14}

+1

十進法表記

v = 2.82145 \dots, v = - 2.82145 \dots

解答ステップ

37.5 = 10 + (69.09) \frac{v ^{2}}{20}

拡張

10 + (69.09) \frac{v ^{2}}{20} : 10 + \frac{69.09 v ^{2}}{20}

37.5 = 10 + \frac{69.09 v ^{2}}{20}

辺を交換する

10 + \frac{69.09 v ^{2}}{20} = 37.5

10

を右側に移動します

\frac{69.09 v ^{2}}{20} = 27.5

以下で両辺を乗じる:

20

69.09 v^{2} = 550

以下で両辺を割る

69.09

v^{2} = 7.96063 \dots

x^{2} = f (a)

の場合, 解は

x = f (a), - f (a)

v = 7.96063 \dots, v = - 7.96063 \dots

7.96063 \dots = \frac{1.99016 E 15}{2.5 E 14}

- 7.96063 \dots = - \frac{1.99016 E 15}{2.5 E 14}

v = \frac{1.99016 E 15}{2.5 E 14}, v = - \frac{1.99016 E 15}{2.5 E 14}

グラフ

人気の例

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0.03+0.08x-0.012x^2=0

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