Question

2
${2}^{ - 3} \times ( - 7 {}^{ - 3) = }$
​

Answer 1

Step-by-step explanation:

${2}^{ - 3} \times {7}^{ - 3} \\ \\ \frac{1 \times 1 \times 1}{2 \times 2 \times 2} \times \frac{1 \times 1 \times 1}{7 \times 7 \times 7} = \frac{1}{2744} \\ 2.744 \times {10}^{ - 3}$