Answer:b
Step-by-step explanation:
The first species to populate an uninhabited
Answer:
53°
Step-by-step explanation:
17² = 18² + 20² - 2(18)(20) cos Q
289 = 324 + 400 - 720 cos Q
289 = 724 - 720 cos Q
-435 = -720 cos Q
0.6042 = cos Q

Q = 52.83
Hey there hope this helps you out
Plz dont be mean to me i just wanna understand and also its the blue line for answer 1