![ehsket](/avatars/46609.jpg)
ehsket
18.07.2019 •
Mathematics
1. use euler's formula to find the missing number. edges: 49 faces: 21 vertices: ? a. 30 b. 32 c. 26 d. 28 2. what is the scale factor of a cube with a volume of 512m^3 to a cube with a volume of 3,375 m*3? a. 8: 15 b. 64: 225 c. 15: 8 d. 225: 64
Solved
Show answers
More tips
- H Health and Medicine Which Water Are You Drinking? Is it Worth Buying Bottled Water?...
- A Animals and plants Уход за джунгариками: полезные советы и рекомендации...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- S Sport How to Choose Tennis Rackets?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine What to Do When Your Jaw Locks Up?...
- G Goods and services What Are the Most Popular Services?...
Answers on questions: Mathematics
- M Mathematics What is the answer to 4x-4=5x+2?...
- M Mathematics Me.white decided to install a pool. the pool had a width of 6 yards and an area of 54 square yards. what is the length of mr. whites pool ?...
- M Mathematics The sum of 5 and the quotient of a number and -3...
- M Mathematics What is a orthocenter in math in your own words?...
- M Mathematics How do i find g(x) if f(g(x)) and f(x) are given like f(g(x)) f(x)= sqrt of 6x-4...
- M Mathematics Functions and relations-graphing using a table of values...
- M Mathematics What is the answer to the equation -8n + 4( 1 + 5n) = -6n - 14...
- M Mathematics The x intercepts of a quadratic function are -3 and 7. what is the axis of symmetry?...
- M Mathematics 45pts! what is the range of the function shown on the graph?...
- M Mathematics Using the function h(x)=-4x-9 find h(3) find c if h(x)=-5...
Ответ:
By definition, euler's formula is given by:
C + V = A + 2
Where,
C: number of faces
V: number of vertices
A: number of edges
Substituting values we have:
21 + V = 49 + 2
Clearing V we have:
V = 49 + 2-21
V = 30
the missing number is:
A. 30
Question 2:
The volume of the cube is:
V1 = L1 ^ 3 = 512
The volume of the new cube is:
V2 = L2 ^ 3 = 3375
V2 = (kL1) ^ 3 = 3375
V2 = k ^ 3 (L1) ^ 3 = 3375
V2 = k ^ 3V1 = 3375
Therefore, the scale factor will be:
k ^ 3 = V1 / V2
k ^ 3 = 512/3375
k = (512/3375) ^ (1/3)
k = 8/15
the scale factor of a cube with a volume of 512m ^ 3 to a cube with a volume of 3,375 m * 3 is:
A. 8:15
Ответ:
Because the four gallons of punch equals 100%, so the three gallons of soda represent 3/4 of the punch, which makes 75%. The remaining 25% is the juice.