Answer:
Step-by-step explanation:
Hello, this is a geometric sequence so we are looking for a multiplicative factor.
So, the explicit formula is for n
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Thirty-two thousand six hundred fifty-one
4y2=256
4 x 2 = 8
256 divided by 8
Y=32
Its 15/4
^_^ hope this helps
Answer:
4√5
Step-by-step explanation:
Use Pythagorean theorem
a^2=21^2-19^2
a^2=441-19^2
a^2=441-361
a^2=80
a= √80
simplify