Answer: 24.2
Step-by-step explanation:
35.6 minutes
S = v*t = 8 * 40/60 = 16/3 m
=> t = s/v = 16/(3*9) = 35.555555 minutes
Answer:
2.4
Step-by-step explanation:
Answer:

Step-by-step explanation:
We know that the vertex(lowest point) of
is
.
By inspection, we can see that the vertex of the graph is
.
So, the lowest point of
is
, which means 
5x²+y²=3
by implicit differentiation we shall have:
10x+2yy'=0
the second derivative will be:
10+2y"=0
2y"=-10
y"=-5