Step-by-step explanation:
Arc length formula is

where x is radinas.
A semi circle has a radian measure of

The radius is half of the diameter, 12 so the radius is

So the arc length is

Area of semi circle is

where r is the radius.



Answer:
The percentage of the number of marching band members increased by 16% this year.
Step-by-step explanation:
x 100% = 16%
56 is 16% of 350
Answer:
A. 4:5 for each individual tile
B. 800
C.800:1800
D. I cannot answer this question because the number is half erased and i am not good in that area.
Hope this helps anyway!
Step-by-step explanation:
I think n is 9 hope i helped