Answer:
Justin's displacement is 12.65 km.
Step-by-step explanation:
Since Justin rides 12 km south, then 4 km west, his displacement can be determined by applying Pythagoras theorem to the sketch of his journey. Let his displacement be represented by s,
=
+ 
=
+ 
= 16 + 144
= 160
⇒ s = 
= 12.6491
s ≅ 12.65 km
Justin's displacement is 12.65 km.
5. SSS
6. ASA
7. SAS
8. ASA
9. ASA
Answer:
17 miles
Step-by-step explanation:
4+5+5+3=17
Circumference/diameter= 47.1/15=3.14
The slope intercept formula would be