Answer:
answer B
Step-by-step explanation:
To stretch the exponential function by a factor > 1
you will multiply it by this factor
∴
is the answer
My guess is 30 because every triangle has to add up to 180. 90+60 is 150 180-150 is 30
Answer: 1.8 s
Step-by-step explanation:
Given
The height of the spring mass system above the table is given by

The mass is performing S.H.M with frequency 
and 

time when mass returns to its original position
