Answer:
9
Step-by-step explanation:
2 x 5 = 10
9 x 5 = 45
10:45 = 2:9
2500÷10
250
Therefore,The answer is 250
There are three things you have to know:
- A function is convex when its second derivative

- A function is concave when it second derivative

- The derivative of a power,
, is 
So, the first derivative is

and the second derivative is

This implies that the second derivative of a parabola is constant, and of course that 2 doesn't change the sign of
.
Answer:
48 people
Step-by-step explanation:
First, find how many were left after the first stop:
120(0.5)
= 60
Find how many were left after the second stop:
60(0.8)
= 48
So, since the rest got off on the third stop, this means 48 people got off on the third stop.
Answer:
6
Step-by-step explanation:
radius is half the diameter