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AnnyKZ [126]
3 years ago
13

PLEASE PLEASE HELP ME WITH THIS, SO CONFUSED (image attached) explain it please !!!

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0
Because the figures are similar, they have same proportion for the sides.

Compare the sides
hypotenuse/base = hypotenuse/base
(x - 9) / 4 = (x + 1) / 9

Do cross multiplication, then simplify
9(x - 9) = 4(x + 1)
9x - 81 = 4x + 4
9x - 4x = 4 + 81
5x = 85
x = 85/5
x = 17

For clear understanding, see my attachment

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