Answer:
<em>Answer: D</em>
Step-by-step explanation:
<u>Arithmetic Sequences
</u>
The arithmetic sequences are those where any term n is obtained by adding or subtracting a fixed number to the previous term. That number is called the common difference.
The equation to calculate the nth term of an arithmetic sequence is:

Where
an = nth term
a1 = first term
r = common difference
n = number of the term
We are given the arithmetic sequence:
10, 12, 14, 16, ...
Where a1=10 and
r = 12 - 10 = 2
Thus the general term is:

Operating:


Answer: D
Answer:
80/729
Step-by-step explanation:
8/18x8/18x10/18=640/5832
80/729
Answer:

Step-by-step explanation:
The given sequence is a geometric sequence.
We can find the common ratio using any two consecutive terms of the sequence.

The common ratio is 
Angle D corresponds to angle Z, so they are congruent.
In a parallelogram, consecutive angles are supplementary.
m<C + m<D = 180
m<C + m<Z = 180
123 + 57 = 180
180 = 180
The statements may be true.