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inn [45]
3 years ago
7

What is the common difference of the arithmetic sequence-20,-16,-12,-18

Mathematics
1 answer:
Paul [167]3 years ago
8 0

Answer:

common difference = 4

Step-by-step explanation:

<em><u>common difference</u> is</em><em> </em><em>the difference between the successive term and its preceding term.</em>

let's take the successive term of -20 that is - 16

common difference (d) = successive term - preceeding term

= -16 -(-20)

= -16 + 20

=<u> 4</u>

if we take the successive term of -16 that is -12

we'll get the same common difference.

d = -12 -(-16)

d = -12 + 16

d = 4

this means that the common difference for an AP remains constant.

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