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
masha68 [24]
3 years ago
5

What is the perimeter of a regular nonagon with a side length of 21

Mathematics
2 answers:
eimsori [14]3 years ago
8 0
The perimeter would be 189

How?-

Formula- 9(the sides of the nonagon) times the length 

so 
9*21=189
vagabundo [1.1K]3 years ago
7 0
21*9

9 sides times 21 per side

You might be interested in
Find an expression which represents the sum of (6x – 4) and (-2x + 5) in simplest terms.​
Alja [10]

Answer:

5

Step-by-step explanation:

because if you add -2x and 5 you would get 3 also if you subtract 6x-4 you would get 2x so add 2x and 3x then you would get five

6 0
3 years ago
What is the probability that a randomly selected number from 30 to 61 is divisible by 7 and then divisible by 20 after replacing
devlian [24]
Probability is zero. no solution
7 0
3 years ago
Solve for c.<br> a(c- b) =d
Semenov [28]
The answer to your question would be...
___________________________________
answer: c = d/a + b

(please give thanks if i am correct)
6 0
3 years ago
Read 2 more answers
N + 9 &gt;_ 13 (with the “_” under the “&gt;”
Step2247 [10]

Answer:

n >_ 4

Step-by-step explanation:

move 9 to the other side

n >_ 13 - 9

n >_ 4

8 0
3 years ago
Read 2 more answers
Find the equation of the axis of symmetry of the graph of y = (x + 3)^2 - 5
Temka [501]
Equation of the parabola: y = ax^2 + bx + c. Find a, b, and c.
x of axis of symmetry:
x
=
−
b
2
a
=
3
-> b = -6a
Writing that the graph passing at point (1, 0) and point (4, -3):
(1) 0 = a + b + c -> c = - a - b = - a + 6a = 5a
(2) -3 = 16a + 4b + c --> -3 = 16a - 24a + 5a = -3a --> a = 1
b = -6a = -6; and c = 5a = 5
y
=
x
2
−
6
x
+
5

Check with x = 1: -> y = 1 - 6 + 5 = 0. OK
3 0
3 years ago
Other questions:
  • What is 2/3 of 17? Do you need to find the greatest denominator?
    5·1 answer
  • Assume that the helium porosity (in percentage) of coal samples taken from any particular seam is normally distributed with true
    14·1 answer
  • PLEASE HELP :(
    13·1 answer
  • I have some geometry questions today!
    11·1 answer
  • Please help<br>and please explain the answers to weather its linear or nonlinear?<br>​
    12·1 answer
  • Can someone help me with these pleaseeeee
    7·1 answer
  • In. in What is the area of this trapezoid? b2 = 5 in. h = 4 in. 3 in. 2 in. b1 = 10 in.​
    12·1 answer
  • Notes i
    8·1 answer
  • Find the value of g(5) if<br> someone help asap PLEASE
    5·1 answer
  • PLEASE HELP URGENT
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!