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3 years ago

A) 25.8b) 36.8c) 64.2d) 42.0

Mathematics

1 answer:

Yuliya22 [10]3 years ago

8 0

Answer:

y = 25.8

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos y = adjacent/ hypotenuse

cos y = 18/20

Take the inverse cos of each side

cos ^-1 (cos y) = cos^-1(18/20)

y =25.84193276

Rounding to the nearest tenth

y = 25.8

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A) 25.8b) 36.8c) 64.2d) 42.0​

A) 25.8b) 36.8c) 64.2d) 42.0