Answer:
(81 -20.25π) cm²
Step-by-step explanation:
The area of the 9 cm square is ...
(9 cm)² = 81 cm²
The area of the 9 cm circle is ...
(π/4)(9 cm)² = 20.25π cm²
The blue shaded region is the difference of these areas, so is ...
shaded area = (81 -20.25π) cm²
x=3; x=-3; x=√5; x=-√5
25 = 23
100 = X
Cross multiply and you will have:
25x = 2300
1/2z=3/4
z=3/4 x 2
z=3/2