Answer:
7/10
Step-by-step explanation:
keep change flip
N^2-3n-4=0
(n-4)(n+1)
-4+1=-3
-4*1=-4
n-4=0
n=4
n+1=0
n=-1
Final answers: x=-1, x=4
(8)(-4.5) is not equivalent because 8 times -4.5 results in negative value
Answer:
Step-by-step explanation:
S - 4πc^2 = 6πct
t = (S - 4πc^2)/6πc
t = S/(6πc) - 2/3 c
assuming c ≠ 0
The 8th person is sitting across from the 2nd person