-2i * -3i
6i
6i^2
6 * -1
-6
Answer: C) -6 or the third option.
51 75%
_____ =______
X 100
75x=5100
_________
75
X=68
0.16 as a fraction becomes 16/100. This can be simplified to 4/25.
None of those are the right answer, though 1/6 as a decimal is 0.16666666... (the 6s repeat forever) so option C is what they're looking for.
Answer:
(a). 
= ![\left[\begin{array}{cc}12&-4\\66&6\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D12%26-4%5C%5C66%266%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
A = ![\left[\begin{array}{cc}5&-4\\3&6\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D5%26-4%5C%5C3%266%5Cend%7Barray%7D%5Cright%5D)
=
= ![\left[\begin{array}{cc}5&12\\3&66\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D5%2612%5C%5C3%2666%5Cend%7Barray%7D%5Cright%5D)
5 and 95, because they add up to a multiple of ten. 5+95 = 100
Then you can easily add 36+100 = 136.
Hope I helped :)
