The absolute value makes the -8 into a positive 8, then you subtract the 8 on both sides, giving you your answer 7. (Since 15-8=7)
There are several ways to solve this, but the law of sines is probably the easiest...
Law of Sines: sina/A=sinb/B=sinc/C for any triangle...in this case we can say:
sin48/x=sin90/55
xsin90=55sin48
x=55sin48/sin90
x≈40.873 (to nearest one-thousandth, not sure which precision you needed)
we have
case a) 

therefore
the expression is equal to 
case b) 

therefore
the expression is equal to 
case c) 

therefore
the expression is not equal to 
case d) 

therefore
the expression is not equal to 
case e) 

therefore
the expression is equal to 
case f) 

therefore
the expression is equal to 
therefore
the answer is
The expressions that are equal to
are




Transformation involves changing the size and position of a shape. The sequence of transformation is:
- <em>First shape: dilation, translation.</em>
- <em>Second shape: dilation, rotation</em>
<u>The first shape</u>
First, we notice that the size of the shape is enlarged; this means that the small shape is dilated to the bigger one.
Next, the dilated shape is translated 1 unit right and 2 units up
Hence, the sequence of transformation is: <em>dilation, then translation</em>
<u>The first second</u>
First, we notice that the size of the shape is enlarged; this means that the small shape is dilated to the bigger one.
Next, the dilated shape is rotated.
Hence, the sequence of transformation is: <em>dilation, then rotation</em>
Read more about transformations at:
brainly.com/question/13801312