Answer:
it might be 8-9.5 correct me if i am wrong
Step-by-step explanation:
Answer: (A) CDD
if D=C^-1
then
C D D = (C C^-1) D = I D = D
(where I is the identity matrix)
Answer:
C. x=2
Step-by-step explanation:
-3(x-4)=2x+4-x
-3x+12=x+4
+3x +3x
-----------------------
12=4x+4
-4 -4
-----------------------
8=4x
-- ---
4 4
-----------------------
x=2
