Answer:
<u>Recursive:</u>

<u>Explicit:</u>

Explanation:
<u>1. Sequence:</u>

<u>2. Recursive formula</u>
The recursive formula permits to calculate the value of the nth term in the sequence using the (n-1)th term in the sequence.

<u>3. Explicit formula</u>
The explicit formula permits to calculate any value of a term in the sequence:

To find the median of 20 values, list the values from smallest to largest then add the 10th and 11th number then divide by 2 and you get your median.
Answer:
180
Step-by-step explanation:
Since the type of trapezoid is not listed, I cannot really explain, sorry :/
Answer:

Step-by-step explanation:
Slope is rise over run.

Hope this helps.