X^3 * x^2 - 4 is your answer. Hope this helps!
9: B right
10: C obtuse
11: B right
12: B right
I hope they are right! Sorry if they are not!
I believe that it is B. Hope this helps!
Answer:
A1=59
A2=85
A3=49
A4=no.because strait lines add up to 180 and it does not
B1=x=133andy=133
B2=53,61,and 56
B3=x=37andy= 37
B4=x=54and y=68
C1=y= 43and x=51
