-22 is negative which no matter how high the negative number is the positive will always be greater. 25 is greater! :0 - hope I helped
Answer:
21
Step-by-step explanation:
The answer is 21, because we use the combinations formula
7!/(7-2!)(2!) = 6x7/2 = 21
We are given our function as
For finding concavity , firstly we will find second derivative
now, we can find derivative again
now, we can know second derivative is undefined when denominator =0
so, we set denominator =0
and then we can solve for x
now, we can draw a number line and locate x=-4
and then we can find sign of second derivative on each intervals
so,
Concave downward interval: