Answer:
504 arrangements are possible
Step-by-step explanation:
Arrangements of n elements:
The number of arrangements of n elements is given by:
Arrangements of n elements, divided into groups:
The number of arrangements of n elements, divided into groups of 
elements is given by:
In this case:
9 pens, into groups of 5, 3 and 1. So
504 arrangements are possible
Answer:
D
Step-by-step explanation:
a=
4
a=4
Answer:
If you are trying to solve by substitution then you have 2 different possibilities of answer forms.
First Possibility: (Point form) (16,8)
Second Possibility: (equation form) x=16, y=8
<u><em>PLEASE MARK BRAINLIEST</em></u>
Answer:
Step-by-step explanation:
Given the angle ∠AOB
It is stated that CO is the angle bisector of ∠AOB.
Given that ∠AOB = 30°
As we know that the angle bisector bisects the angle into two equal angles.
Thus, the angle bisector CO bisects the angle ∠AOB into two equal angles, which are:
as
∠AOB = 30°
Thus, the two formed angles i.e m∠AOC and m∠BOC by the angle bisector would be half of the angle bisector as the angle bisector bisects the angle ∠AOB into two equal angles.
Therefore,
