Issolvi 160-200*0.7/sqrt{0.7*0.3*200}

$$\frac{ 160-200 \times 0.7 }{ \sqrt{ 0.7 \times 0.3 \times 200 } }$$

Evalwa

$$\frac{10\sqrt{42}}{21}\approx 3.086066999$$

Passi tas-Soluzzjonijiet

Immultiplika 200 u 0.7 biex tikseb 140.

$$\frac{160-140}{\sqrt{0.7\times 0.3\times 200}}$$

Naqqas 140 minn 160 biex tikseb 20.

$$\frac{20}{\sqrt{0.7\times 0.3\times 200}}$$

Immultiplika 0.7 u 0.3 biex tikseb 0.21.

$$\frac{20}{\sqrt{0.21\times 200}}$$

Immultiplika 0.21 u 200 biex tikseb 42.

$$\frac{20}{\sqrt{42}}$$

Irrazzjonalizza d-denominatur tal-\frac{20}{\sqrt{42}} billi timmultiplika in-numeratur u d-denominatur mill-\sqrt{42}.

$$\frac{20\sqrt{42}}{\left(\sqrt{42}\right)^{2}}$$

Il-kwadrat ta' \sqrt{42} huwa 42.

$$\frac{20\sqrt{42}}{42}$$

Iddividi 20\sqrt{42} b'42 biex tikseb\frac{10}{21}\sqrt{42}.

$$\frac{10}{21}\sqrt{42}$$