Answer:
T = 4.0 s
Step-by-step explanation:
The period of a simple pendulum is given by

where l = length of the pendulum
= 4 m
g = acceleration due to gravity
= 9.8 m/s^2

Answer:
Gustavo
Step-by-step explanation:
if anything this looks like 38-19n, if the first term is n=1.
But as that isn't an option, gustavo should be correct, as his sequence would go down by 19 each time (yuki's would go up by 19 each time, not down like the sequence shows)
Can you Elaborate your question?
REAL BUT NOT RATIONAL :
square root of 2
the golden ratio : 1.618033.....non terminating
square root of 99