simplify 2e^{-0.5}

Solution

simplify

2 e^{- 0.5}

1.21306 \dots

Solution steps

2 e^{- 0.5}

Apply exponent rule:

a^{- b} = \frac{1}{a ^{b}}

= 2 \cdot \frac{1}{e}

Multiply fractions:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{e}

Multiply the numbers:

1 \cdot 2 = 2

= \frac{2}{e}

e = 1.64872 \dots

= \frac{2}{1.64872 \dots}

Divide the numbers:

\frac{2}{1.64872 \dots} = 1.21306 \dots

= 1.21306 \dots

3.6 \times 1 0^{- 3}

(7 b)^{3}

4 \cdot π \cdot 1 \cdot 1 0^{3} \cdot 22 \cdot 1 0^{- 9} \cdot 47 \cdot 1 0^{- 9}

9.32 \times 1 0^{- 10}