1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BigorU [14]
3 years ago
5

Need help with geometry homework

Mathematics
1 answer:
KIM [24]3 years ago
8 0

A regular n-gon has n lines of symmetry

The angle of rotational symmetry for regular n-gon is  360 / n  degrees.

You might be interested in
What is the value of x in the diagram?
makvit [3.9K]

Answer:

x=5

Step-by-step explanation:

Since this is a right triangle, we can use the pythagorean theorem

a^2 + b^2 = c^2

x^2+ ( 2x+2)^2 = (2x+3)^2

FOIL the squared terms

x^2 +(4x^2 + 4x+4x+4) = 4x^2 + 6x+6x +9

Combine like terms

5x^2+8x +4 = 4x^2 +12x +9

Subtract  4x^2 +12x +9 from each side

5x^2+8x +4  -4x^2 -12x -9= 4x^2 +12x +9-4x^2 -12x -9

x^2 -4x -5 =0

Factor

(x-5) (x+1) = 0

Using the zero product property

x=5   x=-1

But x cannot be negative or we would have negative length

x=5

6 0
3 years ago
Solve in(5x+7)=8 round to the nearest thousandth
Ivan

Answer:

x=\frac{1}{5}

x=0.2

Step-by-step explanation:

(5x+7)=8

5x+7=8

Subtract 7 from both sides.

5x+7-7=8-7

Simplify.

5x=1

Divide both sides by 5.

\frac{5x}{5} =\frac{1}{5}

Simplify.

x=\frac{1}{5}

Decimal form:

0.2

7 0
3 years ago
Read 2 more answers
-8(1 + 5b) – 2(86 – 1) = 50
kati45 [8]

Answer:

b = -57/10

Step-by-step explanation:

Let's first distribute everything out:

-8(1 + 5b) = -8 * 1 + (-8) * 5b = -8 - 40b

2(86 - 1) = 2 * 85 = 170

So, we have:

-8 - 40b - 170 = 50

-40b - 178 = 50

-40b = 50 + 178 = 228

b = -228/40 = -57/10

Thus, the answer is b = -57/10.

Hope this helps!

3 0
3 years ago
X/10.24=4 tell me what is the answer?
denpristay [2]

Answer:

40.96

Step-by-step explanation:

x/10.24=4

times 10.24 on both sides

10.24 times 4

x=40.96

7 0
2 years ago
Please help me I'm desperate!
Alexus [3.1K]
R = ((3V)/((pi)(h^2))+h)/3
6 0
3 years ago
Other questions:
  • The height of a baseball, in feet, is represented by this expression, where t is time in seconds.
    13·2 answers
  • Three consecutive even integers are such that the sum of the smallest and three times the second is 38 more than twice the third
    10·2 answers
  • What are the excluded values of x for <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%2B1%7D%7Bx%5E2-1%7D%20" id="TexFormula1"
    12·2 answers
  • Kristen takes 2 pages of notes during each hour of class. Write an equation that shows the relationship between the time in clas
    15·1 answer
  • If log50=1.699 then what is log(100)50? with the 100 being the subscript of log
    7·1 answer
  • Please help me with this!!!
    7·1 answer
  • If the largest value in a data set is 12 and the range is 3, what is the smallest value in the set?
    8·1 answer
  • Simon charges an initial fee plus an hourly fee to repair TVs. The table below shows the amounts Simon charges for the first thr
    7·1 answer
  • 2. Which of the following values of x make the following functions equal? y = 2x-1 y = -5x + 13
    8·1 answer
  • If r=3 cm,s=4cm find the area of the shaded area?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!