Answer:

Step-by-step explanation:
This arithmetic sequence begins with 19, and for each consecutive value it subtracts 5. Therefore, the rule for this is:

Hope this helps!
Answer:
1.0625
Step-by-step explanation:
Answer:
θ= 60° or 120°Step-by-step explanation: if im wrong im srry
Step-by-step explanation:
perimeter of a semi- circle with a radius of 6cm
=2πr=2×π×6=12π cm