Answer:

Step-by-step explanation:
we know that
<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
To calculate combinations, we will use the formula

where
n represents the total number of items
r represents the number of items being chosen at a time.
In this problem

substitute

simplify




Answer:
0 to 2 minutes - Accelerating
3 to 4 minutes - Constant
6 to 8 minutes - Decelerating
9 to 11 minutes Accelerating
hope i have helped u
Step-by-step explanation:
P: quadrilaterals . I hope that helps
Answer:
Step-by-step explanation:
When,x= -1
Now,
f(-1)=-(-1)^2+6
=1+6
=7
Hope it helped you.
Total of what? You can put the question in the comment section of this comment.