Using euler's formula how many edges does a polyhedron with 7 faces and 7 vertices have
Answers
Answer:
12 Edges
Step-by-step explanation:
Top one is right but had 2 stars for some reason. 12 Edges is the answer. (Just did it btw)
Edges of a polyhedron are 12.
What is polyhedron?"Polyhedron is a three dimensional solid shape with a certain number of faces, edges and vertices.
If the number of faces and the vertex of a polyhedron are given, we can find the edges using the polyhedron formula. This formula is also known as ‘Euler’s formula’."
F + V = E + 2
Here,
F = Number of faces of the polyhedron
V = Number of vertices of the polyhedron
E = Number of edges of the polyhedron
Given
Number of Faces (F) = 7
Number of Vertices (V) = 7
For any polyhedron,
Euler's Formula:
F + V - E = 2
⇒ 7 + 7 - E = 2
⇒ 14 - E = 2
⇒ E = 14 - 2
⇒ E = 12
Number of Edges (E) = 12
Hence, Edges of a polyhedron are 12.
Learn more about polyhedron here
https://brainly.com/question/2321456
#SPJ2
Related Questions
Subtract 4 3/4 - ( -1 1/12 ) Enter your answer as a simplified mixed number by filling in the boxes
Answers
Answer:
The answer is 5 5/6
Step-by-step explanation:
Question 5
Which of the following graphs presents a function?
Answers
Step-by-step explanation:
Verify a function using the vertical line testVerify a one-to-one function with the horizontal line testIdentify the graphs of the toolkit functionsDetermine whether the equation 6d+8=14+3d One solution, no solution, or infinitely many solutions
Answers
Answer:
One solution
Answer, d = 2
Step-by-step explanation:
6d + 8 = 14 + 3d
6d = 3d + 6
3d = 6
d = 2
This equation has only one solution
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Answer:
d=2
Step-by-step explanation:
6d+3d=14-8
solution ,
Or, 6d-3d=14-8
Or, 3d=6
Or, d=6/3
…d=2
one quarter of a certain number added to one eighth of the same number is 12. What is the number
Answers
Answer:
32
Step-by-step explanation:
let the number be n , then
[tex]\frac{1}{4}[/tex] n + [tex]\frac{1}{8}[/tex] n = 12 ( multiply through by 8 to clear the fractions )
2n + n = 96
3n = 96 ( divide both sides by 3 )
n = 32
The number is 32
Math Math Math Math
IXl IXL IXL IXL
Answers
Answer:90%
Step-by-step explanation:you count the blocks in orenge -the rest and add a % sign
Please please please help me
Answers
Answer:
The answer. of. this. question. is. 24.
Express 350 as a product of its product factors
Answers
Answer:
70
Step-by-step explanation:
The prime factors of 350 are 2,5,7. Therefore, the product of prime factors = 2×5×7=70
the radius of a circle is 3 in . find area to the nearest tenth
Answers
The radius r = 3 in
Area of circle = πr² = 3.14*3*3= 28.26 in²
Which of the following matches the graph of f (x) = 2(x – 1)2(x + 1)(x + 2)?
Answers
Answer: C. The third graph.
Step-by-step explanation:
A function assigns the values. The graph of the function f(x) = 2(x – 1)2(x + 1)(x + 2) can be drawn as shown below.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
A function assigns the values. The graph of the function f(x) = 2(x – 1)2(x + 1)(x + 2) can be drawn as shown below.
Learn more about Function:
https://brainly.com/question/5245372
#SPJ2
Mrs. Schellhaas spent $14.00 of the $20.00 she has on her Starbucks gift card. Which decimal represents the fraction of the $20.00 she spent
Answers
Answer:
0.7 or 70%
Step-by-step explanation:
Step 1 : Find what percent 14 is of 20. Set up an equation to solve for x.
14 = x (20)
Divide by 20 on both sides.
14 divided by 20 = 0.7
So the decimal which represents the fraction of the 20 bucks she spent is 0.7
Bonus step : If you want to find what is 0.7 in percentage form, then simply convert. 70/100 = 70 percent.
Hope this helps, please mark brainliest if possible! Have a nice day.
Please Help! I will give you a lot of points if you do!
-You can't use our regular number system to solve this problem. You have to use Hindu-Arabic number system
Answers
According to the table, the given stack of numerals correspond to
15
7
19
13
11
0
(A shortcut for reading these numbers: each bar represents 5 and each dot represents 1. The disk just means 0. So for instance, 13 = 5 + 5 + 3 = 2 bars + 3 dots.)
Mayan numerals are expressed in base 20, so the number above is equivalent to
15×20⁵ + 7×20⁴ + 19×20³ + 13×20² + 11×20¹ + 0×20⁰
= 49,277,420
Is 2/5 a rational number?
Answers
Answer:
the rational numbers is 2
Answer:
Yes
Step-by-step explanation:
A rational number is a type of real numbers, which is in form of p/q where q is not equal to 0. It's a number that can be written as a ratio, which includes fractions.
7(4n-9) - 3(n-7)
Use the Distributive Property to
write an equivalent expression.
Answers
Answer:
25n - 42Step-by-step explanation:
Distributive Property:
a(b + c) = ab + acGiven:
7(4n-9) - 3(n-7)Simplify:
7(4n-9) - 3(n-7) =28n - 63 - 3n + 21 = 25n - 42Answer:
[tex]25n - 42[/tex]
Step-by-step explanation:
[tex]7\left(4n-9\right)-3\left(n-7\right)[/tex]
[tex]7\left(4n-9\right)[/tex]
[tex]28n-63[/tex]
[tex]=28n-63-3\left(n-7\right)[/tex]
[tex]-3\left(n-7\right)[/tex]
[tex]3n+21[/tex]
[tex]=28n-63-3n+21[/tex]
[tex]\mathrm{Group\:like\:terms}:-[/tex]
[tex]28n-3n-63+21[/tex]
[tex]=25n-42[/tex]
OAmalOHopeO
Please check attached image.
Answers
Step-by-step explanation:
1) Molecular weight = vapour density × 2 = 43 = 86
→ Empirical formula × n
→ n = molecular weight/vapour density = 86/43 = 2
hope this answer helps you dear..and about other I have no idea!
Select the correct answer.
Use a calculator to solve this problem:
28 + 27 * 36
A.
792
B.
1000
C.
1980
Answers
Answer:
1000
Step-by-step explanation:
the perimeter of a rectangle if the width is w centimeters and the length is 3 cm more than twice the width
Answers
So:
if the Length is 8cm more than twice the width, we have:
2W+8
so it's:
perimeter of a rectange = 2(2W+8)+2W
You asked me not to simplify it, so that should be your answer.
Earth is rotating around the Sun about 18.6 miles
Answers
Step-by-step explanation:
miles travelled = speed * time
= 18.6 * 4.8 = 89.28 miles
what is 2 squared 135
Answers
Answer:
11.61895003
Step-by-step explanation:
How can you solve
an equation or inequality by graphing?
Answers
There are three steps:
Rearrange the equation so "y" is on the left and everything else on the right.
Plot the "y=" line (make it a solid line for y≤ or y≥, and a dashed line for y< or y>)
Shade above the line for a "greater than" (y> or y≥)
or below the line for a "less than" (y< or y≤).
HELP PLEASE 13 POINTS
Answers
Answer:
46 feet. 204 inches = 17 feet. 17 + 6 + 17 + 6 = 46. hope this helps
Step-by-step explanation:
- Zombie
What's 80 rounded to the nearest 1000?
Answers
Answer:
0
Step-by-step explanation:
officially it's closer to 0 then any thousand, so it's 0.
mrs.Smith wants to give 2 hotdogs to each of her 27 guest.Hotdogs come in packages 10 of hotdogs will mrs.smith need to buy.
Answers
Answer:
6 packages
Step-by-step explanation:
27 guests x 2 hotdogs = 54 hotdogs
54 hotdogs/packages of 10 = 5.4
round up because 5 packages wouldn't be enough -- so Mrs. Smith needs 6 packages :)
helpppppppppppppp plzzzzz
Answers
Answer:
x = 12.75
Measure of angle YXZ = 49.75 degrees
Step-by-step explanation:
Complementary angles have a sum of 90 degrees so we add them and set them equal to 90.
3x + 2 + 5x - 14 = 90
Combine like terms
8x - 12 = 90
Add 12 to both sides
8x = 102
Divide both sides by 8 to isolate x
x = 12.75
Measure of angle YXZ = 49.75 degrees
Determine if the conjecture is true or false. If true, explain your reasoning briefly. If false provide a counterexample.
A. Given that 1/5[tex]\leq[/tex]5,
1/20[tex]\leq[/tex], 20,
and 1/38[tex]\leq[/tex]38, you conjecture that 1/x[tex]\leq[/tex]x all real numbers x[tex]\leq[/tex] 0
Answers
9514 1404 393
Answer:
false
Step-by-step explanation:
The conjecture shown in this problem statement does not follow from the examples offered. They support the notion that ...
1/x ≤ x . . . . for x ≥ 0 (not x ≤ 0)
There are several possible counterexamples showing the conjecture is FALSE.
1/0 is undefined1/(-5) > -5 . . . . . . . . a case for x < 0If the intended domain is x ≥ 0, then the conjecture can also be demonstrated to be false for 0 < x < 1:
1/(1/5) > 1/5Please help me!!! I am doing this problem in the unit "Classifying Angles and Angle Addition Postulate"
Answers
Answer:
134°
Step-by-step explanation:
since BD bisects L ABC,
x/2 + 17 = x - 33
=> multiply by 2, we find:
x+34=2x-66
x-2x=-66-34
-x = -100
x = 100
m L DBC = x-33 = 100-33 = 67°
so, m L ABC = 2 × m L DBC =
2 × 67° = 134°
Please help!!! Banking
Answers
Answer:
deposit: 2
withdrawal: 3
transaction: 1
transfer: 4
Please help me I’m in desperate beed
Answers
Answer:
-40x - 18
Step-by-step explanation:
-40x - 24 + 6
-40x - 18
Simplify the following expression:
2x − 6y + 3x2 + 7y − 14x
3x2 + 12x + y
3x2 − 12x − y
3x2 − 12x + y
3x2 − 12x − 13y
Answers
Answer:
3x2-12x+y
Step-by-step explanation:
2x-6y+3x2+7y-14x
3x2 can't combine with anything
combine the 2x and -14x to get -12x
combine the -6y and 7y to get y
The radius of the sphere is 6 millimeters. Which equation can be used to find the surface area of the sphere? A sphere with a radius of 6 millimeters. S = 4 pi r squared = 4 (6) squared S = 4 pi r squared = 4 pi (12) squared S = 4 pi r squared = 4 pi (6) squared + 2 pi (6) S = 4 pi r squared = 4 pi (6) squared
Answers
9514 1404 393
Answer:
(d) S = 4 pi r^2 = 4 pi (6)^2
Step-by-step explanation:
The formula for the area of a sphere is ...
A = 4πr^2
Filling in the given radius value, we get ...
A = 4π·6^2
Which of the following is an example of a proper fraction?
A.7/6
B.3/4
C.4/4
D.4/3
Answers
Answer: B
Step-by-step explanation:
A proper fraction is when a fraction has the numeration less than the denominator
