Answer:
I believe a=22
Step-by-step explanation:
a=4+4+4+2+8
a=8+4+2+8
a=12+2+8
a=14+8
a=22
Remainder Theorem: when a polynomial <em>P(x) </em>is divided <em>by (x - a), </em>the remainder is <em>P(a).</em>
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Given expression:

In this case:


To know the reminder, we have to plug in the value of <em>z </em>in the polynomial:

Simplifying:



Answer: The remainder is 15.
Answer:
2. 
3.
- definition of perpendicular
4.
- all right angles are congruent
6.
7.
Step-by-step explanation:
<u>Given: </u>Point P is the perpendicular bisector of AB
<u>Prove: </u>P is equidistant from the endpoints AB
<u>Proof.</u>
1. Point P is on the perpendicular bisector of AB - given
2.
- definition of bisector
3.
- definition of perpendicular
4.
- all right angles are congruent
5.
- reflexive property of congruence
6.
- SAS congruency postulate
7.
- corresponding parts of congruent triangles are congruent
8. Point P is equidistant from the endpoints of AB - definition of equidistant