AB+BC+AC-12=AC+CD+AD
AB+BC-12=CD+AD
AB+BD+CD-12=CD+AD=BD
AB+BD-12=0
AB=12cm
Ok so
first one is 1
2nd is 2
3rd is 4
so
an=a1(r^(n-1))
a1=first term
r=common ratio
n=which term
frst term is 1
common ratio is 2
n=64
a64=1(2^(64-1))
a64=2^63
B would be the answer
Answer:
52° 86' 65"
Step-by-step explanation:
20° + 30° + 2° = 52°
15' + 41' + 30' = 86'
18" + 32" + 15" = 65"