Answer: cos(13pi/36)
Step-by-step explanation: just did the assignment
Answer:
3 because all the other are 2/3, C is 3/4
Step-by-step explanation:
The answers are:
P ' = (-4,-7)
Q ' = (-8,-7)
R ' = (-3,3)
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All you do is swap the x and y coordinates of the given points P, Q and R
The general rule is (x,y) ---> (y,x)
So that's why something like P = (-7,-4) becomes P ' = (-4,-7) when we reflect over the line y = x. The other points are handled the same way.
Answer:
-3c^2 +6
Step-by-step explanation:
The equation will be an identity (0=0) when M is equal to the contents of the parentheses. That polynomial can be used directly, or it can be simplified by combining the c^2 terms.
The contents of parentheses simplify as follows:
... (4c^2 -7c^2 +6) = (c^2(4 -7) +6) = (-3c^2 +6)