This is how you answer number 15 and 16
Answer:
I believe the answer is C. 90 degrees
Step-by-step explanation:
First you find the lengths of the two vectors, which are both
. Then you find the angle given the cos using: cos(∅)=
=
= 0. Then using ∅=acos(0)=
= 90°
The length of the daylight was 9 hr 10 min
Answer:
1, 5, 7, and 35. It is composite.
Step-by-step explanation: