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max2010maxim [7]
3 years ago
12

Find the value of x.​

Mathematics
1 answer:
bekas [8.4K]3 years ago
3 0

Answer:

x=7

Step-by-step explanation:

  • The sum of exterior angles of a polygon is equal to 360 degrees
  • (12x+37)+(12x-2)+(20x-29)+46=360\\12x+12x+20x+46+37-29-2=360\\44x+52=360\\44x+52-(52)=360-(52)\\44x=308\\x=7
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An isosceles triangle has a vertical angle of 108 and a base 20 cm long. Solve for the base angles in calculated altitude.
xeze [42]

Answer:

The base angles are 36° each

Step-by-step explanation:

An isosceles triangle is a triangle that has two of its sides and base angles to be equal.

If an isosceles triangle has a vertical angle of 108°, then the base angles will share the remaining angle in the triangle equally.

Since the sum of angles in a triangle is 180°

The remaining angle in the triangle = 180°-108°

= 72°

Since the base angles are equal, this remaining two angles will share angle 72° equally.

The base angles = 72°/2

The base angles = 36°

This shows that the base angles are 36° each.

8 0
3 years ago
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Step-by-step explanation:

Sort them out on paper

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3 years ago
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levacccp [35]

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Check the picture below.

6 0
2 years ago
If T(n)=6n-1what is the first term
OleMash [197]
So if you find the 1st term, you should write 1 instead of n
T1 = 6.1 -1
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Hope it helps!
#MissionExam001
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3 years ago
Given: 3x + 1 = -14; Prove: x = -5<br> Statements
WINSTONCH [101]

Step-by-step explanation:

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x= -5

4 0
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