You find the circumference of a full circle so 2πr =43.98
then divide by 4=10.995
so the answer is 10.995cm
N2+40-28=
Combine like terms
n2+40-28=n2+12
Factor out 2
n•2+12=2(n+6)
Therefore the answer is 2(n+6)
Answer:
= 
Step-by-step explanation:
given 5y = 3x ( divide both sides by 3 )
y = x ( divide both sides by y )
=
Answer:
12:18 and 20:30
Step-by-step explanation:
Answer:
Carl and Alex are wearing hats.
Step-by-step explanation:
If Bob doesn't isn't wearing a hat, then Carl is, so Carl clearly is wearing a hat.
Now let's look at Alex. If he wasn't wearing a hat, then Bob would be wearing one. (If Alex doesn't wear a hat, then Bob wears
a hat). The logical conclusion is that Alex must be wearing a hat as well.
