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Sliva [168]
3 years ago
11

Someone help and please make sure it’s right :)

Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Step-by-step explanation:

(18x + 2) + (10x + 10) = 180

by corresponding angle theorem

10x + 18x + 2 + 10 = 180

28x + 12 = 180

28x = 180 - 12

28x =1 68

x =  \frac{168}{28}

x = 6

have a nice day

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3 years ago
Which point of concurrency is NOT always inside a triangle? Check all that apply. A. circumcenter B. incenter C. orthocenter D.
timama [110]

Answer:

Option A. is correct

Step-by-step explanation:

The circumcenter is a point of intersection of all the perpendicular bisectors of a triangle.

The incenter is a point of intersection of all the angle bisectors of a triangle.

The orthocenter is a point of intersection of all the altitudes of a triangle.

The centroid is a point of intersection of all the medians of a triangle.

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In an acute-angled triangle, the circumcenter may lie inside or outside the triangle.

So,

Option A. is correct

8 0
3 years ago
Put answer in coordinate form: 2x + 2y = -2 and 9x - 6y = 36
zhannawk [14.2K]
Coordinate form is (x,y) using the variables respectively.

2x+2y=-2
-2y
2x= -2-2y
/2

x=-1-y

9x-6y=36
9 (-1-y)-6y=36
-9-9y-6y=36
+9.
-9y-6y=45
-15y=45
/-15
y=-3

x=-1-y
x=-1- (-3)
x=2

answer: (2,-3)
5 0
3 years ago
Give the appropriate theorem or postulate that can
vitfil [10]

Answer:

The right answer is A. AA Postulate

4 0
2 years ago
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notsponge [240]
Answer
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