Answer:AB=15 ,angle A=53.1°,angle B=36.9°
Step-by-step explanation:
AB=√(12^2+9^2)
AB=√(12x12+9x9)
AB=√(144+81)
AB=√(225)
AB=15
TanA=12/9
TanA=4/3
A=Tan(inverse)(4/3)
A=53.1° angle A=53.1°
angle B=180-(90+53.1)
angle B=180-143.1
angle B=36.9°
The GCF of 36 and 90 is 18.
Answer:
it is the first one
Step-by-step explanation:
Answer:
barbielatttt
Step-by-step explanation:
barbieelat
At the end of the first year, the correct formula is this one:

The second year, we add r times the above amount, we get:

Iterating the process, we get the general formula of any number of years: