Answer:
im pretty sure its A
Step-by-step explanation:
Here
BC=P=10
AC=B=b
AB=H=15
then using fourmula
h^2= p^2+ b^2
b^2= 15×15 - 10× 10
b^2= 125
b=11.2
-4g2
=−7x2+19x+ 41/3
i think it is a