Answer:
-7 + 4 = -3
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Answer:
115.900
Step-by-step explanation:
Since 115.9 is rounded to a tenth, it is already rounded to the nearest thousandth. Rounded to the nearest thousandth, it becomes 115.900.
Answer:
See below
Step-by-step explanation:
I can't draw it for you so here are the points. Draw your triangle with them.
From the original triangle, to rotate 180 degrees around the origin, just imagine your are flipping your computer screen upside down which is 180 degrees. To get the coordinates for the points, just make each x and y value the opposite of what the origin is.
Original points ( 2, 1 ) ( 5, -2 ) ( 3, -4 )
Rotated points ( -2, -1 ) ( -5, 2 ) ( -3, 4 )
Answer:
Step-by-step explanation:
The Law of Cosines works for any triangle and is given by:
, where 
, 
, and 
are the sides of the triangle and 
is the angle opposite to .
In the given triangle, assign the variables:
Substituting these variables, we have:
