2 years ago

Find the first, fourth, and eighth terms of the sequence. A(n) = –5 • 3n–1

Mathematics

2 answers:

jeka942 years ago

6 0

Answer:

Step-by-step explanation:

$\text{Substitute}\ n=1,\ n=4\ \text{and}\ n=8\ \text{to}\ A(n)=-5\cdot3^{n-1}:\\\\A(1)=-5\cdot3^{1-1}=-5\cdot3^0=-5\cdot1=-5\\\\A(4)=-5\cdot3^{4-1}=-5\cdot3^3=-5\cdot27=-135\\\\A(8)=-5\cdot3^{8-1}=-5\cdot3^7=-5\cdot2,187=-10,935$

Sindrei [870]2 years ago

3 0

Answer:

Step-by-step explanation:

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guapka [62]

Can you confirm is hypotenuse should be AC...

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3 years ago

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Nina [5.8K]

Answer:

(3x - y)(3x + y)

Step-by-step explanation:

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3 years ago