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
77julia77 [94]
3 years ago
15

Use Euler's Formula to find the missing number.Faces: 20Edges: 30Vertices:​

Mathematics
1 answer:
adoni [48]3 years ago
7 0

Answer:

V=12

Step-by-step explanation:

Faces: 20 Edges: 30

Write the Euler's formula for 3-dimensional figures

F+V=E+2

Substitute some variables for their known values

20+V=30+2

Add the numbers on the right side of the equation

20+v=32

Subtract 20 on both sides

20-20+V=32-20

Subtract

V=32-20

Number of Vertices

V=12

You might be interested in
A football team lost 5 yards on each 3 plays. explain how you could use a number line to find the team's change in field positio
ollegr [7]
<span>A football team lost 5 yards on each 3 plays.
Let’s use a number line to be able to see how far in the field did they lost in 3 games.
=> 1 : 5  (1 game is to 5 yards)
=> 3 : 15 (3 games is to 15 yards )
All in all they lost 15 yards in 3 games.
pls. see attachment for more presentation.</span>



5 0
3 years ago
Which expression has the same value as Negative 18 divided by (negative 9)?
Mandarinka [93]

Answer:

The answer is 36/18.

Hope this helps.

5 0
4 years ago
Read 2 more answers
The answer of this question
dolphi86 [110]

Answer:

i think it is c

Step-by-step explanation:

not 100% sure tho

4 0
3 years ago
Plz help me with b,a , and b
solniwko [45]
2A) C is correct.

2B) If x + 13 = 28, solve.
x+13=28\\&#10;x=15
If x = 15 and x + 13 = 28, you can solve it two ways:
1. Plug x into 4x + 26 to get a perimeter of 86, or
2. Redo the equation:
P=2(15)+2(28)\\&#10;P = 30+56\\&#10;P=86

3a. Since the 6z is negative, you want an expression the has 5z - (11z). Answers A and D have that in their answer.
But since the 13 is positive, you want the answer that subtracts the smaller number from the larger. Thus, D is your answer since it subtracts 2 from 15.

3b) You think about this question the same way; 6z is positive, so the smaller number is being subtracted from the larger, meaning that 11z - 5z is what you look for. C and D are the two that have that, so now let's look at the second term.
The 13 is negative, so you want the answer that has 2 - 15. The answer that has that is D.

Hope this helps :D

8 0
3 years ago
Suppose m= 7, t = 20 and r = 35. what is t(m ÷ r)?
kow [346]
The answer is 4.
Here's how to solve it.

Remove parentheses: 
=20 × 7/35
7/35 = 1/5

Cancel the common factor 7:
=1/5
=20 × 1/5

Multiply fractions:
1·20/5

Simplify:
20/5

Divide
20/5=4

Hope this helped! :)

7 0
3 years ago
Other questions:
  • WhT is the answer to -8(-4f-9)
    15·2 answers
  • If -3x–7 =23 then 6x=?
    15·1 answer
  • Write a fraction less than 1, with a demoninator of 6 that is greater then 3/4
    13·1 answer
  • What is the answer of -2h -7 and h is -1
    7·2 answers
  • Which mixed number is equivalent to 606/100
    11·1 answer
  • What is the x-axis and the y-axis of -2x+2=-4​
    10·1 answer
  • How much times does it take to put 0.3 into 5.7 whoever answers first and the most accurate gets brainliest
    9·2 answers
  • PLEASE SHOW YOUR WORK!!!<br><br><br><br><br><br> Solve for y: 3^3 + 14 y- (25y - 13) = y + 7y - 9y
    6·1 answer
  • What is 24/30 as a decimal
    7·2 answers
  • You paid $39.96, which is 80% of the full price, for a new X-Box game. What was the full price of the game?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!