The solution to sqrt(0.4) is sqrt(2/5)

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simplify sqrt(0.4)

Solution

simplify

0.4

\frac{2}{5}

Decimal Notation

0.63245 \dots

Solution steps

0.4

Multiply and divide by 10 for every number after the decimal point

There is

1

digit to the right of the decimal point, therefore multiply and divide by

10

= \frac{10 \cdot 0.4}{10}

Multiply the numbers:

10 \cdot 0.4 = 4

= \frac{4}{10}

Cancel

\frac{4}{10} : \frac{2}{5}

= \frac{2}{5}

36 j^{2} k^{4} + 24 j^{4} k^{2}

\frac{\frac{π}{4}}{π}

(\frac{4}{7})^{2}

42 = 7 (z - 3)

∣ x + 3 ∣ \geq 6