Answer:
651,641 more people live in Nashville.
Step-by-step explanation:
Since more people live in Nashville, we subtract the population of Nashville by the population of Spring Hill to get:
691,243 - 39,602
= 651,641
Answer:
6.34 seconds.
Step-by-step explanation:
The object will hit the ground when h = 0.
-16t^2 + 90t + 72 = 0
8t^2 - 45t - 36 = 0
We can then use the quadratic formula to solve.
[please ignore the A-hat; that is a bug]

= 
= 
= 
(45 - 56.36488268) / 16 = -0.7103051678
(45 + 56.36488268) / 16 = 6.335305168
Since the time cannot be negative, the object will hit the ground after about 6.34 seconds.
Hope this helps!
GF = ½ RT
Step-by-step explanation:
SG=GR (given)
SF=FT (given)
line GF is a midpoint in triangle RST, so it is therefore ½ the angle parallel to it(viz. RT)