2 years ago

What is the solution to 19 = z + 12? z = ?

Mathematics

1 answer:

lidiya [134]2 years ago

3 0

Z = 7 As given, 19 = z + 12 19 - 12 = z 7 = z z = 7

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Answer:

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1 year ago

If a polygon has an interior angle of 144, what kind of polygon is it? (find the # of sides first

ikadub [295]

Each Interior Angle = ((Number of Sides -2) • 180 degrees) ÷ (Number of Sides)

Solving for number of sides

Each Interior Angle / 180 = (N -2) / (N)

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144 * n = 180n -360
360 = 36 n

n = 10 the number of sides

Source:
http://www.1728.org/polygon.htm

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3 years ago

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2 years ago

What is the solution for 2y=x+2 x-3y=-5

Mars2501 [29]

Answer:

x = 4

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Step-by-step explanation:

Given equations :-

2y = x + 2
x - 3y = -5

Second equation can be written as ,

x - 3y = -5
-3y = -x - 5

Adding them :-

-3y + 2y = 2 -5
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Put this in (ii) :-

x = 3y - 5
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2 years ago

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