I got 4.6,,, in sorry if this is incorrect, I used cross multiplication
Answer:
there are two angles here
the left is obtuse
the right is acute
but i don`t know which one it is asking for sorry :/
If

is invertible, then we can simply choose

because for any invertible matrix

by definition we must have

.
We have

, as

which means

is non-singular and has an inverse. The inverse itself would be
Answer:
C
Step-by-step explanation:
(10 1/3)/(2/3) = 15.5
15.5 * 6 = 93