Question

What is x?????????????????????????????????????????????????

Answer 1

$\bf{by \: pythagoras \: theorem}$

$x {}^{2} = 7.5 {}^{2} - 5 {}^{2}$

$x {}^{2} = 56.25 - 25$

$x = \sqrt{31.25}$

Answer 2

Answer: x=31.25

Step-by-step explanation: a'2 + b'2 = c'2. 5'2+ b'2=7.5'2. 25+b'2=56.25. 56.25-25=b'2.