Question

Please help me with math!

Answer 1

a = 12

Explanation:

Based on the Pythagoras theorem...

`c^(2) = a^(2) + b^(2)`

(where c is the hypotenuse, and a and b are the legs of the right angle triangle)

Therefore we can rewrite it as...

`c^(2) = a^(2) + b^(2)`

`15^(2) = a^(2) + 9^(2)`

`225 = a^(2) + 81`

`a^(2) = 225 - 81\\a^(2) = 144\\a=√(144) \\a = 12`

Answer 2

Answer: C

`(15)^(2) =a^(2) +(9)^(2) \\\\225=a^(2) +81\\\\a^(2) =225-81\\\\a^(2) =144\\\\a=√(144) \\\\ answer : a=12`

Explanation:

hope it help have a nice day