Answer:
the answer is 3/7
Step-by-step explanation:

will be increasing on the intervals where

and decreasing wherever

. Local extrema occur when

and the sign of

changes to either side of that point.

is positive when

is between -4 and some number between -2 and -1, and also 2 (exclusive) and 4, so you can estimate that

is increasing on the intervals [-4, -2] and (2, 4].

is negative when

is between some number between -2 and -1, up to some number less than 2. So

is decreasing on the interval [-1, 1].
You then have two possible cases for extrema occurring. The sign of

changes for some

between -2 and -1, and again to either side of

.
Answer:
(i). Ahsan's Present Age = 16
(ii). Age of Ahsan's Mother when ahsan is 21 years old = 50
Step-by-step explanation:
Let's say, x represents the age of ahsan.
y represents the age of his mother.
The system of equation from the date given is:

Solve them will get us:

Regards: Umer
Answer:
-
Step-by-step explanation:
becuase (-3)(-4) will give you a positive and when you mutipy it with the 5 and 6 you will still get postive but when you multiply with -7, you will get a negitive
Answer:
(-9+√17)/8
Step-by-step explanation:
its an example of quadratic