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
Alekssandra [29.7K]
4 years ago
12

A polyhedron has 38 edges and 23 faces. Use Euler’s formula to find the number of vertices.

Mathematics
1 answer:
Igoryamba4 years ago
7 0

Answer:

The number of vertices are 17

Step-by-step explanation:

we know that

The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

so

V - E + F = 2

substitute the values and solve for V

V - 38 +23 = 2

V - 15 = 2

V = 2+15

V = 17

You might be interested in
Over the past seven days, Mrs. Cho found that the temperature outside had dropped a total of 35
s344n2d4d5 [400]

Answer:

Average change in temperature each day = 5 degrees/day

Step-by-step explanation:

\frac{35}{7} = 5

8 0
3 years ago
Find the exact value of cos 135° sin15°.
IgorLugansk [536]

Answer:

its cos 50

Step-by-step explanation:

amen

7 0
3 years ago
Solve the math problem
Anastasy [175]
Try 89 because a triangle adds up to 180. I think you have to do 23 +68 which is 91 then minus 91 from 180 which is 89
6 0
3 years ago
Read 2 more answers
PLEASE HELP DUE VERY SOON!
LUCKY_DIMON [66]

Answer:

Yes. (see below)

Step-by-step explanation:

First, find the slope of the line. You can do that by using the slope formula:

      y2 - y1

m = ----------

      x2 - x1

Now, choose any two points from the line to plug in. I'm using the points (0, 3) and (2, 4).

      4 - 3

m = ------

      2 - 0

      1

m = --- = 1/2

      2

Now, to simplify your situation, you can use the slope-intercept formula. To use this, you first need to find the slope and y-intercept.

The y-intercept is where the line meets the y-axis, which is (0, 3), so the y-intercept is 3.

Now, plug them in:

y = mx + b

y = 1/2x + 3

To see if a specific point is on this line—which, in this case, is (20, 13), plug them in and simplify to see if it's true:

13 = 1/2 (20) + 3

13 = 10 + 3

13 = 13

This is true, so the point (20, 13) is on this line.

4 0
3 years ago
Match the situation to the most appropriate graph #7
tatuchka [14]
Graph K. This is because the cost of a gallon of milk is not increasing constantly, as in a linear rate, but it has only increased a few times in a year. Therefore, graph K shows that a gallon of milk is a steady, unchanged price, then the cost rises and stays the same, then rises again and stays the same. So, it is not a linear graph because the cost of the milk is not going up at a constant rate.
4 0
3 years ago
Other questions:
  • An experiment measured the evaporation rates of two liquids, liquid A and liquid B, at a certain temperature and pressure. After
    9·2 answers
  • Fatimah works two shifts per day at the pizza shop. During her storefront shift, she sells her pizzas at a rate of 6 pizzas per
    8·1 answer
  • Solve each equation for x. 4(x-b)=x
    5·1 answer
  • Find the measure of angle b
    15·1 answer
  • Architect made a model of a triangular office building using a scale of 1.5 inches equals 5 meters if the height of the model is
    13·1 answer
  • Inez and Joel work at a store that sells
    8·2 answers
  • If the perimeter of the regular hexagon shown above is 78 centimeters, what is the length of each side?
    15·1 answer
  • A pair of rectangular baking pans come in a set together for $15. One pan is 13 inches by 9 inches and the other pan is 6 inches
    11·1 answer
  • Which ratio is equivalent to 7:3<br><br> A : 28 : 12<br> B : 49 : 9<br> C : 21 : 7<br> D : 12 : 8
    8·2 answers
  • Two angles of a quadrilateral measure 210° and 20°. The other two angles are in a ratio of 6:7. What are the measures of those t
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!