Step-by-step explanation:
how many feet of fence is he doing
The measure of angle J is 19.8°, and the correct option is D.
<h3>What is the formula of cosine?</h3>
The law of cosine or cosine rule in trigonometry is a relation between the side and the angles of a triangle. Suppose a triangle with sides a, b, c and with angles cosC.
The following formula is used to find the angle j is;

Triangle HIJ has side lengths h=12, i = 17, j = 7.
Substitute all the values in the formula;

Hence, the measure of angle J is 19.8°, and the correct option is D.
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Given:
The given sequence is:

To find:
The recursive formula for
, the nth term of the sequence.
Solution:
We have,

Here, the first term is 5.



The common difference is -7.
The recursive formula for the nth term of the sequence is

Where,
is the common difference.
Putting
in the above formula, we get


Therefore, the recursive formula for the nth term of the sequence is
.
Answer:
The least common denominator of the fraction is 14
1/2= 7/14
1/7= 2/14