Question

Please help me
thanks :))

Answer 1

Hello!

You use the Pythagorean Theorem to solve this


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

Put in the values it tells you


`a^(2) + 1^(2) = (5)/(4) ^(2)`

Square the numbers


`a^(2) + 1 = (25)/(16)`

Subtract 1 from both sides


`a^(2) = (9)/(16)`

Take the square root of both sides


`a = (3)/(4)`

The answer 3/4 or 0.75

Hope this helps!