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vesna_86 [32]
3 years ago
11

A regular polygon fist maps directly onto itself after rotating 120 degrees. How many sides does the polygon have?

Mathematics
1 answer:
Anna35 [415]3 years ago
3 0

Answer:

3

Step-by-step explanation:

You might be interested in
What does 3.456E+14 mean on a calculator
Natalija [7]

Answer:

The E+ on the calculator means x10^.

Step-by-step explanation:

So, when we input that instead, we get the scientific notation of:

3.456x10^14

If we want this in standard notation, we simply move the decimal place 14 times to the right.

345,600,000,000,000

3 0
4 years ago
Need help on these 2
Lubov Fominskaja [6]
Y = -10/3 X ; 10/3
the last choice
7 0
3 years ago
X + y = 152,<br><br> 8.5x + 12y = 1,656<br><br> How many hats were sold?
Elodia [21]

Answer:

x = 48 and y = 104

Step-by-step explanation:

Given equations are:

x+y = 152\\8.5x+12y=1656

From equation 1:

x = 152-y

Putting the value of y in equation 2

8.5(152-y)+12y = 1656\\1292-8.5y+12y = 1656\\3.5y+1292 = 1656\\3.5y = 1656-1292\\3.5y = 364\\\frac{3.5y}{3.5} = \frac{364}{3.5}\\y = 104

Now we have to put the value of y in one of the equation to find the value of x

Putting y = 104 in the first equation

x+y = 152\\x+ 104 = 152\\x = 152-104\\x = 48

Hence,

The solution of the system of equations is x = 48 and y = 104

The value of variable which was assumed for number of hats, is the total number of hats.

6 0
3 years ago
Could someone please explain how to get the answer?
MaRussiya [10]

the missing side of the right triangle is 10.568

<h3>Pythagorean theorem formula</h3>

a² + b² = c²

<em>Which c is the hypotenuse part of triangle.</em>

<h3>Known that </h3>

a = 5.2

b = 9.2

c = ...?

<em>so</em><em> </em><em>the</em><em> </em><em>missing</em><em> </em><em>part</em><em> </em><em>is</em><em> </em><em>c</em><em>.</em>

<h3>Way to calculate</h3>

a² + b² = c²

5.2² + 9.2² = c²

111.8 = c²

c = √111.8

c = 10.568

#Moderators please don't be mean, dont delete my answers just to get approval from your senior or just to get the biggest moderation daily rank.

7 0
3 years ago
ASAP PLEASE HELP WILL MARK BRAINLIEST
Lubov Fominskaja [6]

Answer:

Clockwise 270° around the origin: (-5,-4)

Counterclockwise 270° around the origin: (5,4)

Step-by-step explanation:

Clockwise

A(x,y) -> A'(-y,x)

Counterclockwise 270° rotation rule:

A(x,y) -> A'(y,-x)

6 0
4 years ago
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