Answer:
D: 12
Step-by-step explanation:
The entire segment KI is composed of the segments KJ and JI. So:

We know that KI is 15.
KJ is (2x-15) and JI is (2x-6). Substitute:

Solve for x. Combine like terms:

Add 21 to both sides:

Hence, the value of x is:

We know that JI is 2x-6.
We will substitute 9 for x to find JI. So:

Hence, our answer is D.
Answer:
Please find attached solution.
Step-by-step explanation:
35 and 41 are two consecutive numbers
Answer:
12x-21
Step-by-step explanation:
3/4(16x-27-1)
3/4(16x-28)
12x-21
Answer:

Step-by-step explanation:
We are asked to find
of function
using definition of derivatives.
Limit definition of derivatives:

Let us find
and
.




Substituting these values in limit definition of derivatives, we will get:


Make a common denominator:





Cancel out h:




Therefore,
.