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miss Akunina [59]
3 years ago
7

Plzzzzz help I’ll mark brainlest thxxxx

Mathematics
1 answer:
Sloan [31]3 years ago
6 0

an = a1 +d(n-1)

a4 =a1+d(4-1)

-4 = -1+d(3)

add 1 to each side

-3 = 3d

d= -1

an = a1 +d(n-1)

an = -1 +-1 (n-1)

an = -1 -n +1

an = -n


Choice D


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