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3 years ago

Identify the 19th term of the arithmetic sequence 5, 16, 27 …

Mathematics

2 answers:

Sladkaya [172]3 years ago

8 0

This sequence is represented as:

a(n+1) = 5 + 11n

So for 19th term, a(19) = 5 + 11*(19-1) = 203

Zepler [3.9K]3 years ago

3 0

An = a1 + (n -1)(d)
where a1 is the first term and d is the common difference.
a19 = 5 + (19 - 1)(11)
a19 = 5 + (18)(11)
a19 = 5 + 198
a19 = 203

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PLZ HELP!!! Find the measure of BAC

marysya [2.9K]

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<BAC = 20°

Step-by-step explanation:

It is given in the question that all 9 triangle which are formed are congruent, which means that in all triangles, the angle which is formed at point A is same.

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