Scientific Notation

#9 b) PLEASE HELP!!!

Explanation:

9) a) (9.84×10³)/(6.12×4.27×10³+⁷) = 9.84×10³/6.12×4.27×10¹⁰ = 9.84×10³-¹⁰/6.12×4.27

= 0.376×10^-7.

b) (4.36×10⁸×1.82×10³)/(0.0856×4.7×10⁶)

= (7.9352×10⁸+³)/(0.40232×10⁶)

= 19.72×10⁸+³-⁶ = 19.72×10⁵

hope this helps you.

A

Explanation:

The South Pole of the earth's magnet points north. Thus each geographic pole has an opposite magnetic pole near it. The North Pole of the compass needle in your hand is attracted towards the geographic north thanks to the South Pole of the earth's magnet that is fairly close to the geographic North Pole.