Answer:
x = 14.97
Explanation:
a= 10 c=18
1. plug variables in for pythagorean theorem.
→

2.solve for b from pythagorean theorem.
→

-100 -100
→
b = 14.9666295.....
3. Round variable b to the nearest hundreth assuming they expect that and change the variable to x since we were actually looking for x.
b=14.9666....→ b(estimated)= 14.97
x(estimated)=14.97