Answer:
5 cm
Step-by-step explanation:
Given a semicircle with perimeter 25.71 cm, we are required to find the radius of the circle.
Circumference of a Semicircle
=Length of the Circular part+Length of the diameter


? I’m confused is there supposed to be a picture to this? I don’t see a expression so..
Answer:
1320, permutation
Step-by-step explanation:
There are 12 members
Pick a president
We have 12 choices
Now there are 11 people left to pick from
now pick a vp
We have 11 choices
Now there are 10 people left to pick from
now pick a secretary
We have 10 choices
12*11*10 = 1320
This is a permutation since it matters who is president, vp and secretary
Answer:
384 student tickets and 128 adult tickets
Step-by-step explanation:
S for student and A for adult
s+a=512
s=3a
3a+a=512
4a=512
a=128
s=384
This could be wrong because I'm going into the fifth grade but wouldn't it just be (7,-3)?