The radius of the circle is given to be r = 14.5
Let the center be O. So OB is the radius = 14.5
We can draw a triangle as shown in the image below. We have a right angled triangle. We know the hypotenuse and the base, we need to find the perpendicular side. This can be done using the Pythagorean theorem.
So, we can write:

Thus, the measure of OA = 10.5
OB = OA + AB
14.5 = 10.5 + AB
⇒
AB = 4
<span>B) A key chain can hold 3 keys. If there are a total of 12 keys, how many key chains are there?</span>
Answer:
I hate my math teacher
Step-by-step explanation:
I just hate him
Answer:
x² - 6x + 9
Step-by-step explanation:
(x - 3)² = x² - 6x + 9