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GaryK [48]
3 years ago
7

Which angle pairs are supplementary? Check all that apply.

Mathematics
2 answers:
Zina [86]3 years ago
7 0

Answer:

Supplementary Angles are two angles the sum of whose measures is 180º. Supplementary angles can be placed so they form a linear pair (straight line), or they may be two separate angles.

ANTONII [103]3 years ago
5 0

Answer:

b) ∠4 and ∠3

c) ∠4 and ∠5

e) ∠3 and ∠6

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The interior angle of a regular polvgon is 9 times the size of its exterior angle
Thepotemich [5.8K]
<h3>Answer:   20 sides</h3>

==================================================

Work Shown:

x = exterior angle

9x = interior angle

interior + exterior = 180

9x+x = 180

10x = 180

x = 180/10

x = 18

n = number of sides

n = 360/x

n = 360/18

n = 20

There are <u>20</u> sides to the regular polygon.

Side notes:

  • The formula to determine n only works for regular polygons.
  • A polygon with 20 sides is known as an icosagon.
  • Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
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2 years ago
Evaluate √16-x when x=8.
PIT_PIT [208]
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3 years ago
Randolph is trying to find the equation of a line parallel to y = '1 over 4 x − 6 in slope-intercept form that passes through th
Aleksandr [31]
So remember that paralell lines have the same slope
y=1/4x-6
1/4=slope
so we set up a new equation in slope intercept form
y=mx+b
m=slope
b=y-intercept

y=1/4x+b

one solution si (-1,5) where x=-1 and y=5
subsitute
5=1/4(-1)+b
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add 1/4 to both sides
5+1/4=21/4=b

the answer is y=1/4x+21/4


4 0
3 years ago
Read 2 more answers
AC = 3x -8, BC = -7 + 2x, and AB = 8.<br> Find BC.
Rainbow [258]

Answer:

AB+BC+AC=180°

8 - 7 + 2x +3x -8= 180°

-7+5x=180°

x=180°+7/5

x=37.4°

again

BC=-7+2*37.4

=67.8°

4 0
1 year ago
How do I find the value of “y” in this equation 3/2y + 3/2
navik [9.2K]

Answer:

isolate the vvariable

Step-by-step explanation:

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