First we have to find derivative of f(x):

For x=2 we have:

Now, 
Hence, the answer is A) 2
Both rates are same when you divide them. 80/12= 6.6667 and 60/9= 6.667.
So, 6.6667 is the rate for each minute
Answer: x<−28
Step-by-step explanation:
Answer:
62 degrees
Step-by-step explanation:
71 - 9
62
Hope this helps :)
The given expression is

We have to find the discriminant first . And for that, first we need to move whole terms of the left side to right side, that is


The formula of discriminant is

Substituting the values of a,b and c, we will get

And since the discriminant is greater than 0, or it is positive so we have two real roots.
Therefore the correct option is B .