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Ira Lisetskai [31]
3 years ago
15

A regular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. Each of

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0

Answer:

EACH central angle = 360 / number of sides

number of sides = 360 / each central angle

number of sides = 360 / 40

number of sides = 9

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Find an equation for the line that passes through the points (-2,-6) and (6,-4)
JulsSmile [24]
Slope of line
m= (y2-y1)/(x2-x1)
=(-4--6)/(6--2)
=2/8
=1/4

Line in two point form
(y-y1)=m(x-x1)
y--2=(1/4)(x-6)
y+2=(1/4)(x-6)
simplify
4(y+2)=x-6 =>
x-4y-14=0
Alternatively, use the slope intercept form:
y--2=(1/4)(x-6) =>
y=(1/4)x - 3/2-2 =>
y=(1/4)x -7/2

6 0
3 years ago
Which shows the following in order from least to greatest: 85%, 15/18, 0.84 PLEASE HELP
Marrrta [24]

Answer:

15/18, 0.84, 85%

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

6 0
2 years ago
Read 2 more answers
o The day before the exam, Rebecca does a practice run. She attempts 20 glass vases and breaks 3 of them. What is her success ra
Rashid [163]

Answer:

If the goal is to break the vases: 3/20 = 15.0% or 0.15

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8 0
3 years ago
What is the surface area,explain your work
Marianna [84]
The shape is a square pyramid, meaning it has one square face and four triangle faces of equal area. Add these areas together to get the total surface area.

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8 0
3 years ago
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Vladimir79 [104]
You would follow the order of operations
Parentheses
Exponents
Multiply/Divide
Add/Subtract

if it is multiply or divide, go from left to right. do the same if it is addition or subtraction

4000/10x2+4-8

first, do 4000/10

400x2+4-8

then do 400x2

800+4-8

then do 800+4

804-8

796
rounding to the nearest tens would make it 800
because 9 rounded up is 10
4 0
3 years ago
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