3 years ago

What is the explicit formula for this sequence? 7, 2, -3, -8

1 answer:

inn [45]3 years ago

8 0

Answer:

Common difference (d) = -5

Step-by-step explanation:

formula=>

an = a + (n-1)d

=> -8 = 7 + (4-1)d

=> -15 = 3d

=> 3d = -15

=> d = -15/3

=> d = -5

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Helen [10]

Answer:

B) $45\pi cm^{2}$

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