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
Debora [2.8K]
3 years ago
14

A polygon is such that when all diagonals from one vertex are drawn, eleven triangles are formed. How many sides does the polygo

n have?
9
11
12
13
Mathematics
2 answers:
svetoff [14.1K]3 years ago
7 0

Answer:

Option D, 13

Step-by-step explanation:

A polygon is such that when all diagonals from on vertex are drawn, eleven triangles are formed.

We have to tell number of sides of the polygon.

Since number of triangle"y" formed by "n" number of vertices can be represented by (n-2) = y

By putting y = 11 in the equation

11 = (n-2)

n = 13

Option D is the answer.

Vlada [557]3 years ago
6 0
13. There are 13 sides to this polygon. 
You might be interested in
The point (-4,1) is rotated 180 degrees counterclockwise using center (-3,0). What are the coordinates of the image?
IrinaVladis [17]
I believe the answer is C also trying using the website desmos it helps a lot with graphing
4 0
2 years ago
Read 2 more answers
Find the value of X. Show work!!!
barxatty [35]

Answer:

x = -10

Angle 2 = 49°

Angle 3 = 49°

Step-by-step explanation:

In the given figure, it's an isosceles triangle

so, angle 2 = angle 3

( since their opposite sides are equal )

now,

in the given triangle,

=》Angle 2 + Angle 3 + 82° = 180°

( sum of all interior angles of the triangle = 180° )

=》Angle 2 + Angle 3 = 180° - 82

=》Angle 2 + Angle 3 = 98°

=》2 × Angle 2 = 98°

( since, angle 2 = angle 3 )

=》Angle 2 = 98° / 2

=》Angle 2 = 49°

so, Angle 2 = 49° = Angle 3

now,

Angle 2 = x + 59

=》49 = x + 59

=》x = 49 - 59

=》x = -10

6 0
2 years ago
2.1 If 5 + 3 = 0 and < 0, evaluate (without using a calculator):
Sergeeva-Olga [200]

1. 18

2.8

3.-1

<h3>What is expression?</h3>

An expression is a set of terms combined using the operations +, – , x or ,/.

Given:

1. 22 − 1 (4)

=22- 1*4

= 22-4

= 18

2. 2 + 2 (3)

=2+2*3

=2+6

=8

3. 1 − 2

= -1

Learn more about expression here:

brainly.com/question/14083225

#SPJ1

6 0
2 years ago
Using f(x) = 8x + 5 and g(x) = 7x - 2, find:g(f(6))
iren2701 [21]

Answer:

369

Step-by-step explanation:

g(f(x)) simply means to put the whole expression of function f(x) into the place of "x" in g(x).

and to find the functional value for a specific x we just need to calculate functional value for f(x) and use that result as input for g(x).

f(6) = 8×6 + 5 = 48 + 5 = 53

and now

g(53) = 7×53 - 2 = 371 - 2 = 369

to check we do the general functional substitution :

g(f(x)) = 7×(8x+5) - 2 = 56x + 35 - 2 = 56x + 33

g(f(6)) = 56×6 + 33 = 336 + 33 = 369

correct

5 0
2 years ago
PLZ HELP!!! TIMED WORKSHEET
bogdanovich [222]

Answer:1.   152.4

2.    0.0009

3.    680

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • How many solutions does the system have?
    12·1 answer
  • Help asap mark you BRAINLY 5 star <br><br><br> and heart tysm!
    8·2 answers
  • Huilan's age is two times Thomas's age. The sum of their ages is 27. What is Thomas's age?
    10·1 answer
  • Which is the most logical order of statements and justifications I, II, III, and IV to complete the proof?
    5·2 answers
  • The graph of the line y=4 is a
    12·2 answers
  • A city council is deciding whether or not to spend additional money to reduce the amount of traffic. The council decides that it
    6·1 answer
  • Can someone please help?
    7·1 answer
  • Solve for x, and JUSTIFY your answer.
    14·1 answer
  • Solve the system of linear equations by substitution.<br><br> −5x+3y=51<br> y=10x−8
    8·1 answer
  • (brainliest is gonna begiven answer correctly please) Use the formula V = s³, where V is the volume and s is the edge length of
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!