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Roman55 [17]
3 years ago
12

Determine the next number in the following sequence. Explain your reasoning. Please tell me what expression you used.

Mathematics
1 answer:
Fittoniya [83]3 years ago
4 0
30 because after 21 it goes up by 9
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Midpoint of (1,3) and (4,-5)
crimeas [40]

Answer:

The rigth answer is, ( 5/2 , -1 )

Step-by-step explanation:

To find the midpoint we use the respective formula:

m = ( x1 + x2 / 2 ,  y1 + y2 / 2 )

We replace:

m = ( 1 + 4/2  ,  3 + (- 5) / 2 )

We solve:

m = ( 5/2 ,  -1 )

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Step-by-step explanation:

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8 0
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