naomimae4 naomimae4

20-04-2020
Mathematics

contestada

Find the length of the unknown side. Round your answer to the nearest tenth. (4 points)

Group of answer choices

65.4

70.5

72.8

93.0

Find the length of the unknown side Round your answer to the nearest tenth 4 pointsGroup of answer choices654705728930 class=

Respuesta :

kinsley10 kinsley10

20-04-2020

answer: 72.8

explanation: a^2+b^2=c^2
18^2+b^2=75^2

18^2=324

75^2=5625

324+b^2=5625
-324 -324
b^2=5301
take the square root of both sides
√b^2=√5301
b=72.807966
so b=72.80

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