Answer:
(-1,5)
Step-by-step explanation:
To find this, you have to add both "x" coordinates, then divide them by two.
Same thing goes for the "y" coordinates, add them, then divide them by two.
x-coordinates ---> 2+(-4)= -2
y-coordinates ---> 1+9= 10
-2÷2= -1
10÷2= 5
That gives you, (-1,5).
Answer:



Step-by-step explanation:
Given




Required
Determine the measure of each angle
The angles in a triangle sum up t 180. i.e.

Since
, then 
can then be rewritten as:


Substitute values for B and C

Open Bracket

Collect Like Terms


Divide both sides by 23

To get the measure of each angle, substitute 11 for x in the expressions of B, C and D









Answer:
52
Step-by-step explanation:
4^2=4×4=16
6^2=6×6=36
16+36=52
1. 12 is your answer
2. -33 is your answer
Answer:
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Step-by-step explanation:
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