Answer: 4 (OPTION 2)
Step-by-step explanation:
1. To solve this problem you must apply the Intersecting secants theorem, as you can see below:

Where:


2. Then you must susbstitute values and solve for x, as following:

Therefore the answer is the second option.
Answer:
Step-by-step explanation:
Let A, B and C be square matrices, let
. Suppose also that D is an invertible square matrix. Since D is an invertible matrix, then
. Now,
. Therefore,



which proves that A, B and C are invertible square matrices.
Answer:
3b + 24
Step-by-step explanation:
3*b=3b
3*8=24
therefore the answer is 3b+24
Hope this helps:)...if not then sorry for wasting your time and may God bless you:)