Answer:
From the figure, it can be seen that ΔJ'K'L' is formed from ΔJKL by the rotation of ΔJKL by 90 degrees counter-clockwise.
It can also be seen that ΔJ"K"L" is obtained from ΔJ'K'L' by the refrection of ΔJ'K'L' across the x-axis.
Therefore, the rule that describes the composition of transformations that maps ΔJKL to ΔJ"K"L" is given by
Step-by-step explanation:
The result of expanding the trigonometry expression
is 
<h3>How to evaluate the expression?</h3>
The expression is given as:

Express
as
.
So, we have:

Open the bracket

Express 1 as cos°(Ф)

Hence, the result of expanding the trigonometry expression
is 
Read more about trigonometry expressions at:
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It’s 4, I hope it helps!!
The answer is 10 u have to put 2/3 multiplied by 15/1
Hope this helps! the answer is option (A). if you still don’t understand after looking at my solution feel free to clarify ya