Mathematics College

If a figure has elght vertices and 12 edges, how many faces does it have? 10
8
6
4

Answers

Answer 1

Answer:

It would have 6 faces

Step-by-step explanation:

In any convex polyhedron:

let v be the number  vertices , e is the number of edges and f is the number of faces then;

             ....[1]

As per the statement:

If a figure has eight vertices and 12 edges

⇒v = 8 and e = 12

Substitute in [1] to solve for f, we have;

⇒

Subtract 6 from both sides we have;

f = 6

Related Questions

Someone please answer this!!

Answers

5 miles

you can do a2+b2=c2. 4^2+3^2=c^2 16+9=c^2 25=c^2 then divide ^2 to each side. so u get 25 square root. when u solve u get 5.

How to solve this question ​

Answers

Answer:

D) 60°

Step-by-step explanation:

Because TV and YZ are parallel, and TY and VZ are equal, angle T is equal to angle V.  Also, Y and Z would each be 120°.

The answer is 60 degrees

|x − 5| − |2 − x| + |x + 1| , if x ≥ 5

Answers

Answer:

9990% 222$

Step-by-step explanation:

if you work it will help u head

pls help with this geomtry question asap

Answers

tvtctcrctrccrccrcrcrcrcrcrcrcrrcrccrcr

help math see image for question​

Answers

Answer:

AAAAAAA!!!!!

Step-by-step explanation:

what is the absolute value of 1,123?​

Answers

Answer:

1,123 is the absolute value because it is a positive integer hence it reaches the positive absolute value

Answer:

the correct answer is 1,123

Step-by-step explanation:

absolute value is the non-negative value of a real number, without regard to its sign. which means [1,123]= 1,123

Pls help! Due soon. I will give brainiest *no links*

Answers

Answer:

#2 a.

#3 c.

#4 a.

#5 c.

#6 b.

863 to the nearest 100​

Answers

I think it would be 900

Answer

the correct answer is 900

What is the positive solution to the equation 2x^2 = 72?

Answers

Answer:

x= 6

Step-by-step explanation:

6*6=36*2=72

2x^2=72
x^2=36
x=±6
x=6
x=-6

|y-x|, if y>x PLZ HELP

Answers

Answer:

56tt8989899999999×-×554545--455356788:988

Which expression can go in the blank to make this equation true
-4.5 + 4.4 + ? = 0

Answers

Answer:

+ 0.1

Step-by-step explanation:

So, first, we will add together -4.5 + 4.4, which equals -0.1. Then, we need to add the positive value of that to make it 0, so we add 0.1. I Hope This Helps :)

Will GiVE BRAINLIEST!!!!
A carpenter uses two different types of paint in his work, X-Brand and Y-Brand (represented by the x and y variables respectively in the system of equations below). The system of equations represents the total cost and amount of paint he purchased for a client. Determine the cost, in dollars, of the X-Brand.
2x+5y=6
−x+2y=−3

Answers

Answer

$3

Step-by-step explanation:

To find the x value, you want to cancel out the y terms in the equations. To do so, multiply (2x+5y=6) by 2, and (-x+2y=-3) by -5. This gives you

4x+10y=12

5x-10y=15

You can then cancel out the y terms and add the other terms from the 2 equations together to make

9x=27

You then divide 27 by 9 to get 3 as the value for x.

I need the answer with justification please​

Answers

The chance of getting an even number for 1 roll is 1/2 ( half the numbers are even.)

For 3 times in a row:

1/2 x 1/2 x 1/2 = 1/8

The answer is 1/8

what is the fraction 7 x 1/4 = ____

Answers

change 7 to a fraction
7/1 x 1/4
= 7/4

Answer:

4/7 is the answer

Step-by-step explanation:

7 x ¼

=7/4

How do I get from step 2 to step 3?

Answers

Answer:

do the floss

Step-by-step explanation:

I think you divide 16 on both sides and add them together.
But I really don’t know
Sorry :(

Help ASAP I’m so confused

Answers

Answer:

1)  0.1 unit

2)  0.1 unit²

3)  0.15 unit²


Please help me PLEASE

Answers

Answer:

the answer would be Point F

Answer:

The answer is F

Step-by-step explanation:

Please help me simplify this! Thank you so much!

Answers

Step-by-step explanation:

8∧-2 x (8∧2)∧3

=8∧-2 x 8∧6

=8∧(-2+6)

=8∧(4)

(40)
8. Use the information in the figure
below to answer questions a. and b.
70°
W
N
Х
35°
a. What is mZw?
b. What is mZz?

Answers

w= 55
z= 55

for w take 90+35 then your answer minus 180 which would equal 55. w and y are vertical angles therefore you can add 55+70 and get 125, 180-125= 55, so 55 would be the answer for both w and z

Can somebody please help me with this question

Answers

Answer:

35?

Step-by-step explanation:

Answer:

Step-by-step explanation:

I don't have the exact answer I just know it's going to be wayy less than 90 degrees, and probably  like around 30 or even less.

This is not a test but pls help

Answers

Answer:

7 x 2 x 6 is the same as 2 x 7 x 6

Step-by-step explanation:

Use PEMDAS to evaluate the expression 24 ÷ 3 + 6 x 4 − 11. 19 21 22 24
asap

Answers

Answer:

The answer is 21 if you use PEMDAS.

Answer:

21

Step-by-step explanation:

PEMDAS= Parenthesis Exponents Multiplication Division Addition Subtraction

Hope this helps! have a great day!  

Add the fractions 3/14+15/21. Simplify your answer

Answers

When simplified, it should be 13/14

The solution of fractions 3/14 + 15/21 is,

⇒ 3/14 + 15/21 = 39/42

We have to given that,

To add the fractions 3/14 and 15/21.

Now, We can add the fractions as,

⇒ 3/14 + 15/21

Since, LCM of 1 and 21 are 42.

Hence, Make the denominator same,

⇒ 9/42 + 30/42

⇒ (9 + 30) / 42

⇒ 39/42

Therefore, The solution of fractions 3/14 + 15/21 is,

3/14 + 15/21 = 39/42

Learn more about the fraction visit:

https://brainly.com/question/5454147

#SPJ6

Solve the system of equations using linear combination. -4x+y=10 -2x-y=-1

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :D

Surface area to volume ratio for a sphere

Answers

A45. Bbbb I have to go get out there a few minutes later to pick

Pls someone help me with this question pls

Answers

Answer:

9/11

Step-by-step explanation:

9/11

-4(3x - 2x + 4y)
Simplify the expression

Answers

Answer:

− 4 x − 16 y

Step-by-step explanation:

Answer:

− 4 x − 16 y

Step-by-step explanation:

Plz help I’m down bad atm

Answers

Answer: Second option, 2^2x+6=2^6

Step-by-step explanation:

You can simplify 4^x+3 by making the 4 into 2^2. By doing this you also multiply the current powers of 4 by 2, giving you (x+3) • 2, furthermore, 2^2x+6.

64 is a power of 2, so just multiply 2 by itself until you get the number you’re looking for and count how many times you do it. Or just type each option, like 2^4, 2^6 into the calculator until you find it.

Given the function h(n)= n squared - 1, find h(-4).​

Answers

h(-4)= (-4)^2-1
(-4)^2=16
16-1=15

h(-4)=15

Please help me with this ASAP ASAP please please help

Answers

Answer:

Step-by-step explanation:

Base perimeter : 4 x 2 x π = 8π cm

LA = 8π x 4 = 32π cm^2

Base area: 4^2 π = 16π cm^2

SA = 2 x 16π + 32 = 64π cm^2

V = 16π x 4 = 64π cm^3

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