10 Scientific Notation - Tutorial - Part 2 - Level H
The North American X-15 rocket-powered aircraft is the world's
fastest manned plane on record. It travels about 7* 103 kilometers per
hour. The duck hawk is the world's fastest bird, traveling at speeds
over 3 * 102 kilometers per hour.
About how much faster is the plane?
3 x 102 km/h
7 x 109 km/h
I'm still not sure.
less than 20 times faster
more than 20 times faster
exactly 20 times faster