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
Vsevolod [243]
2 years ago
15

Help me plss need help with theses three

Mathematics
1 answer:
fiasKO [112]2 years ago
4 0
interior angle of a regular 18-gon.
It is easier to calculate the exterior angle of a regular polygon of n-sides (n-gon) by the relation
exterior angle = 360/n
For a 18-gon, n=18, so exterior angle = 360/18=20 °
The value of each interior angle is therefore the supplement, or
Interior angle = 180-20=160 degrees.

Naming of a 9-gon
A polygon with 9 vertices is called a nonagon (in English) or enneagon (French ennéagone, but the English version is sometimes used)
You had a good start with the correct answer.

Exterior angle of a 15-gon
The exterior angle of a 15-gon can be calculated using the relation given in the first paragraph, namely
Exterior angle = 360/15=24 degrees
You might be interested in
What type of number is the square root of 16?
OlgaM077 [116]
The answer is 4. the square root of 16=4. 4*4 =16
                                      

3 0
3 years ago
Read 2 more answers
Given {10 = 2x + 70
Sav [38]

Answer:

20-8. 3. 4x+(5-3y), when r = 5 and y=-1. 415)+(5-3(-1). 20+ (5+3). 4. -7x-(-4x² ... 3. 3(3x - 1)-11x-1. 9X-3-11X-1. 4. -2(x - 5) +3(-4-). -2x+10-12-3x. [-5x-2. 5. 4-2(x +5)+3x(x - 2). H-2X-10+3x2-6X. [3x²8x-61. 6. 15-6-3)+4(x-3). 15-X+2+4x-12. 3x + 5 ... Objective 2: To find the slope when given an equation of a line.

Step-by-step explanation:

6 0
3 years ago
Write an expression for the apparent nth term (a(n)) of the sequence. (Assume that n begins with 1.)
expeople1 [14]

Answer:

34

Step-by-step explanation:

5 0
3 years ago
Can someone help me with this ASAP please 50 points!!!
ella [17]

Answer:

a = 17 sqrt(2)

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opposite / hypotenuse

sin 45 = 17/a

Multiply each side by a

a sin 45 = 17

Divide each side by sin 45

a = 17 / sin 45

a = 17 / ( 1 / sqrt(2))

a = 17 sqrt(2)

7 0
3 years ago
What is the square root of 4?
charle [14.2K]

Answer:

2

Step-by-step explanation:

2 x 2 = 4.

4 0
3 years ago
Read 2 more answers
Other questions:
  • A bicycle wheel is rotating about a fixed axis at 10 rev/s in a clockwise sense. Five seconds later the wheel is rotating at 50
    6·1 answer
  • What is the factor for 30n-40
    12·1 answer
  • A= [2, 3; 2, 1], B=[3; 5]. Find AB & BA if possible
    15·1 answer
  • Write the ratio in the simplest form.<br><br> 2a/3a
    12·1 answer
  • What is the factorization of the trinomial below? 3x3 + 6x2 - 24x
    7·2 answers
  • If three movie tickets cost $36, what is the cost per ticket?
    14·2 answers
  • Determine the Equation of the line Perpendicular to 2x -3y +5= 0 and passers through (-6,-3)
    12·1 answer
  • Four less than twice a number is fifty
    14·2 answers
  • Fill in the blanks. <br> Algebra 1 course.
    7·1 answer
  • If the map distance is 20 cm and the scale is 4 cm = 60 km, what is the actual distance?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!