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zhenek [66]
3 years ago
12

I kinda get this problem but i just want to see what other answers people got to see if i did the question wrong.

Mathematics
2 answers:
otez555 [7]3 years ago
8 0
An=a1+d(n-1)
fisrst term is a1
common difference is d

decreases by 4 each time
first term is 19
an=19-4(n-1)
distribute
an=19-4n+4
an=23-4n
you are right


Ulleksa [173]3 years ago
3 0
You did not do the question wrong. Your answer would be correct. ;-)
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Answer:

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Step-by-step explanation:

The triangle at upper left and the one at lower right are similar. Ratios of corresponding sides are equal, so ...

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