Question

$9 \times {10}^{9} \times 1 \times {10}^{ - 7} \times 2 \times {10}^{ - 7 } \div ({20 \times 10}^{ - 2}) ^{2}$
​

Answer 1

Answer:

0.9 * 10^-3

Step-by-step explanation:

$==: 9 * 10^{9} * 1 * 10^{-7} * 2 * 10^{-7} / 20 * 10^{-2} \\==: 18 * 10^{9-7-7} / 20 * 10^{-2}\\==: 18 * 10^{-5} / 20 * 10^{-2}\\==: 9 * 10^{-5 + 2} / 10\\==: 0.9 * 10^{-3}$

Pls mark my answer as brainlist

Pls follow me

Answer 2

Answer:

sorry l do known the answer

Step-by-step explanation:

plz follow me

and

mark as a Brainliest answer

thankyou