Displacement vetors of 4 km south, 2 km north, 5 km south and 5 km north combine to a total displacement of?
1. 16 km north.
2. 11 km west.
3. 6 km south.
4. 2 km south.

“other instruments such as gravimeters and magnetometers are also used in the search for petroleum. extracting crude oil normally starts with drilling wells into an underground reservoir. when an oil well has been tapped, a geologist (known on the rig as the "mudlogger") will note its presence. “ this is what i found on google i hope it

It's because 3 if it was 10 it wouldn't look right do it goes up to 4d