A: Universe (It surrounds everything) B: Galaxy (Smaller than the universe but larger than the rest) C: Solar System D: Mars
Cant help you for number 2 though. Hope this helps :)
The

symbol means intersection, so everything that is in both sets, and the
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symbol means union, so the two sets combined.


So the answer is A.
<u>Answer-</u>

<u>Solution-</u>
The equation for time period of a simple pendulum is given by,

Where,
T = Time period,
L = Length of the rod,
g = Acceleration due to gravity.
Frequency (f) of the pendulum is the reciprocal of its period, i.e

Putting the values,




Answer:
the anwser is b
Step-by-step explanation:
If x=2.5, then 5x would equal 5*2.5, or 12.5