Question

simplify and give reasons (1/2)^-3×(1/4)^-3×(1/5)^-3​

Answer 1

Answer:

$6.4 \times {10}^{4}$

or 64000

Explanation:

$({ \frac{1}{2} }^{ - 3}) \times ( { \frac{1}{4} }^{ - 3} ) \times ( { \frac{1}{5} }^{ - 3} )$

Solving this...

we know that

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

applying that equation into our data

${2}^{3} \times {4}^{3} \times {5}^{3}$

Now this should be enough to solve

So the calculated answer is

8×64×125 = 64,000

So there you go,

The answer is

$64000 = 6.4 \times {10}^{4}$

Answer 2

Answer:

40^3

Step-by-step explanation:

• (1/2)^-3*(1/4)^-3*(1/5)^-3
• 2^3*4^3*5^3
• (2*4*5)^3
• =40^3