Answer:
SAS
Step-by-step explanation:
We can automatically eliminate the HL answer choice, since the given triangles aren't right triangles. The only answer choices that could make sense would be ASA or SAS, but there is no ASA choice, so the answer would be SAS.
Answer:
a) The explicit formula is
b) The 31st term of the sequence is 222
Step-by-step explanation:
a) The explicit formula for an arithmetic sequence is:
The recursive formula for the sequence is
From this formula we can find the common difference by comparing to the general recursive formula:
This means the common difference d=7.
We now substitute the first term and the common difference into the explicit formula: to obtain:
Expand to get:
Simplify:
b) To find the 31st term of this sequence, we substitute n=31 in to the the explicit formula, to obtain:
Multiply to get:
Add to get:
Therefore the 31st term of the sequence is 222
B.
if you plug it in your answer would be 10