Shimmerie Shimmerie

15-02-2021
Mathematics

contestada

Find the 75th term of the Arithmetic Sequence 15,11,7,3...

Respuesta :

snowystar965 snowystar965

15-02-2021

Answer:

-281

Step-by-step explanation:

Use the explicit formula

[tex]a_{n} = a_{1} + (n-1)d\\a_{n} = 15 + (n-1)(-4)\\a_{75} = 15 + (75-1)(-4)\\a_{75} = 15 - 300 + 4\\a_{75} = -281[/tex]

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