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
Digiron [165]
3 years ago
15

How many lines of reflectional symmetry does an equilateral triangle have?

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
7 0
There are 3 lines of reflectional symmetry in an equilateral triangle 
You might be interested in
Consider the system of equations.
anzhelika [568]

Answer: You can multiply the top equation by -1 to eliminate the x variable.

And the solution is (2,4/3)  in case you need it.

Step-by-step explanation:

2x + 3y = 8

2x + 6y = 12

If you multiply the upper equation or down equation by one, you will be able to eliminate the x variable.

-1( 2x + 3y) = -1(8)     New equation:   -2x -3y  = -8.

Add the new equation you got  by multiplying the top equation by -1 to the bottom equation.

Add them:     -2x -3y = -8

                      2x + 6y = 12  

                               3y = 4  

                              y = 4/3

You can now input the value for y into the one of the equations and solve for x.

-2x - 3(4/3) = -8

-2x -4 = -8  

     +4     +4

-2x = -4

x = 2

8 0
3 years ago
45<br> as a product of prime factors
Darya [45]
3*3*5 is equal to 45 AND its factors are prime.

:)
5 0
3 years ago
Read 2 more answers
Convert the following radian angle into degrees.
NeTakaya

The degree of the radian angle 0.11 is 6.3^{\circ}

Explanation:

It is given that the radian angle is 0.11

We need to determine the degrees of the radian angle.

To convert the radian into degrees, let us multiply the radian with \left(\frac{180}{\pi}\right)

Thus, we have,

0.11\times\left(\frac{180}{\pi}\right)=\frac{19.8}{\pi}

It is given that \pi=3.14

Substituting \pi=3.14 in the above expression, we have,

\frac{19.8}{3.14} =6.303...

Rounding off to the nearest tenth, we have,

6.3^{\circ}

Thus, the degree of the radian angle 0.11 is 6.3^{\circ}

4 0
2 years ago
Find the GCF of each set of numbers or monomials
Nata [24]
4, 8, 10, 7, 3, 4... Those r in order from top to bottom! it's all about the simplification!
5 0
3 years ago
There are 4 students in a small class. To make a team, the names of 3 of them will be drawn from a hat. How many different teams
Volgvan

Answer:

Step-by-step explanation:

Order shouldn't make any difference.

3 C 4  = 4!/(3! 1!) = 4

Let's see if that is right.

1 2 3

1 2 4

1 3 4

2 3 4

Any other combination will produce a duplicate if order doesn't matter. For example

2 4 3 is the same thing as 2 3 4

8 0
2 years ago
Other questions:
  • How do u make 33 and one third a fraction
    6·2 answers
  • Please Help!!! Ben drove 325 miles at a rate of 65mph. How long did it take him to drive the distance? Please answer: What do we
    8·2 answers
  • A radio talk show host with a large audience is interested in the proportion p of adults in his listening area who think the dri
    14·1 answer
  • If three out of four side lengths are all the same would that be a parallelogram?
    10·1 answer
  • Which pair of triangles can be proven congruent by the HL theorem?
    8·1 answer
  • Identify the property used in the first four steps to solve the equation 4(x-7)=2x-6
    11·1 answer
  • After charging for 1/3 of an hour, a phone is at 2/5 of its full power.
    15·2 answers
  • 5=1/3(2x+12)<br><br> Solve for X in simplest form
    12·1 answer
  • V5. Suppose you invest $5,000 at 9% interest, compounded annually, for 10 years. Determine the future value of your investment,
    13·1 answer
  • 8×4=(A×7)-(A×3)<br>what is the value of A in the equation shown??​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!