Help please? Will mark correct and first answer as brainliest!! : )

Answer:

Step-by-step explanation:

Let  

V

be the number of vertices of a polyhedron,  

F

the number of faces of that polyhedron, and  

E

be the number of edges. The quantity  

χ

=

V

−

E

+

F

is called the Euler characteristic (of a polyhedron). In the case of convex polyhedra,  

χ

=

2

.

Consider, for example, a tetrahedron (which is the simplest solid). It has 4 faces,  

1

2

(

4

)

(

3

)

=

6

edges, and  

1

3

(

4

)

(

3

)

=

4

vertices. Thus we have  

V

−

E

+

F

=

4

−

6

+

4

=

2

.

Euler's formula holds for all Platonic solids (tetrahedron, cube, octahedron, dodecahedron, and icosahedron). Since a cube and an octahedron are dual polyhedra (each is formed by connecting the centers of the faces of the other), their  

V

and  

F

values are equal to the  

F

an  

V

values of the other. (The same is true for the dodecahedron and icosahedron).

Answer:

5.3 hours

Step-by-step explanation:

Ashley recently opened a store that uses only natural ingredients. She wants to advertise her products by distributing bags of samples in her neighborhood. It takes Ashley 2/3 of a minute to prepare one bag. It takes each of her friends 75% longer to prepare a bag. How many hours will it take Ashley and 4 of her friends to prepare 1575 bags of samples?

Time it takes 1 person to preprate one bag = 2/3 min

Time it takes each friend of Ashley: 75% more than 2/3 min

75% × 2/3 minutes

=75/100 × 2/3 minutes

= 0.75 × 2/3

= 0.5 min

= 1/2 minutes

Friends = 2/3 min + 1/2 min = 7/6 min per friend

Time it takes Ashley and the 4 friends working along to prepare one bag:

Ashley's time per bag = 1 bag / (2/3) min

= 3/2 bag/min

Ashley's friends time per bag = 1 bag / (7/6) min

= 6/7 bag/min

Total = 3/2 bag/min + 4 × 6/7 bag/min

= (3/2 +24/7)

= 69/14 bag/min

Time it takes to prepare 1575 bags of samples = number of bags / number of bags per min

= 1,575 bags / (69/14) bags/min

= 319.56 min

Convert to hours:

356.56 min / 60 min per hour

= 5.3 hours

Answer:

3.5 hrs

Step-by-step explanation:

Khan Academy!

6 = 2 • 3, so

6ˣ⁻³ = 2ˣ⁻³ • 3ˣ⁻³

Then in

2²ˣ = 6ˣ⁻³

we would have

2²ˣ = 2ˣ⁻³ • 3ˣ⁻³

2²ˣ / 2ˣ⁻³ = 3ˣ⁻³

2²ˣ⁻ˣ⁺³ = 3ˣ⁻³

2ˣ⁺³ = 3ˣ⁻³

Now take the logarithm of both sides. The base you choose doesn't matter.

log(2ˣ⁺³) = log(3ˣ⁻³)

Recall that log(aⁿ) = n log(a), so that the equation reduces to

(x + 3) log(2) = (x - 3) log(3)

Solve for x :

log(2) x + 3 log(2) = log(3) x - 3 log(3)

(log(2) - log(3)) x = - 3 log(2) - 3 log(3)

Recall that log(a) - log(b) = log(a/b), and log(a) + log(b) = log(ab), so that

log(2) - log(3) = log(2/3)

- 3 log(2) - 3 log(3) = - 3 (log(2) + log(3)) = - 3 log(6)

So, we get

log(2/3) x = - 3 log(6)

x = -3 log(6) / log(2/3)

As I mentioned, the base of the logarithm doesn't matter, x will always have the same value of about 13.257.

Answer:

16,200 im not sure if its right just multiply everything then add to multiplication x3

Answer:

40.2336 meters

Step-by-step explanation:

Answer:

40.2336 meters

Step-by-step explanation:

Answer:

√5+√3 /√5-√3 + root 5 + root 3 upon root 5 minus root 3 + root 5 minus root 3 upon root 5 + root 3 ​

Step-by-step explanation:

√5+√3 /√5-√3 + root 5 + root 3 upon root 5 minus root 3 + root 5 minus root 3 upon root 5 + root 3 ​

Answer:

Matrix is array of number while vector is a list of numbers

Answer:

a vector is a form of a matrix having one row or one column or just say a "vector" is a list of values, a "matrix" is a table (or list of lists.................

Step-by-step explanation:

Answer:

6 times 16 equals 96 divided by 2 (or half) equals 48

Step-by-step explanation:

Answer:

creo que son 250

Step-by-step explanation:

Answer:

you want to put your first pint at negative 3 on the Y axis. and then you want to go down 2 and right 1 to crest your slope.

-0.9 -0.4. Make sense at all???

Answer:

-2

Step-by-step explanation:

6+(-8)=-2

Answer:

Ricky

Step-by-step explanation:

24 divided by 3 equals 8 drawings per minute

28 divided by 4 equals 7 drawings per minute

Answer:

Ricky

Step-by-step explanation:

One way to solve this is finding out how many characters they draw per minute. In order to find this, you must divide the amount of cartoon characters by the time. For example, 24 divided by 3 is 8 and 28 divided by 4 is 7. Ricky draws 8 per min and Leo draws 7 per min. Therefore, Ricky draws at a faster rate. Hope this helps! :)

Answer:

So, in order to solve this, you need to know slope. Slope is equal to rise (up/down) over run (left/right). The number at the end, which in this case is 2, is the y-intercept. So, first, graph a point on the y-axis, which is 2. Next, you can place any other point on the line, as long as it follows your slope, which is 3/5. If you need a better explanation, just graph (0, 2) on the y-axis and also graph the point (3, 5).

Have a good one,

Philip

BRAINLIEST IS ALWAYS APPRECIATED! <3

Answer:

3 times 8 = 24  + 8 = 32

Step-by-step explanation:

Answer:

The number is 8

Step-by-step explanation:

3x + 8 = 32

3x = 24

x = 8

________

A number can be denoted as x. 3 times a number is 3 of that number, and 8 more than a number is that number plus 8. This relationship can be given by:

x + x + x + 8 = 32

(x + x + x) + 8 = 32

3x + 8 = 32

3x + 8 - 8 = 32 - 8

3x = 24

3x/3 = 24/3

x = 8

Answer:

58.5

Step-by-step explanation:

9 x 13 = 117

117 divided by 2 = 58.5

Answer:

no thanks

Step-by-step explanation:

i don't wanna help u nerd

Answer:

potato

yes potato

Answer:

The slope is Undefined.

Step-by-step explanation:

Answer:

130

Step-by-step explanation:

happy to help :0 have a good day sir

Answer:

52

Step-by-step explanation:

the sequence is increasing by 4

hence, the nth term in n = 4(n) -16

hence, 17th term = 4(17) -16 = 52

Answer:

[tex]y=3x-8[/tex]

Step-by-step explanation:

Answer: This question is confusing because I can't come up with a whole answer because I don't see a way to get to it no matter how many different ways I try to solve it ;-; The closest I got was $267 with 10 tickets and the fee

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

The function is not one to one because there are multiple x-values for each y-value.

Answer:look at the angle bro and you got the angle just look at it good enough

Step-by-step explanation:

Answer: Hey! no need to fret ok so your trying to find what multiplied by itself would get 1109. Make an algebra equation and solve for x:

x • x = 1109

x ≈ 33.302

Step-by-step explanation:Hoped I helped! Have a great day and put this on brainliest please. Thank you!

Answer:

an = an – 1 + 14; a1 = 9

Step-by-step explanation:

Answer:

Step-by-step explanation:

pizza represent p

$14=1p

$9=9*1/4=9/4

Answer:

typing 16 words in 2/3 of a minute

Step-by-step explanation:

very very sorry for the late response wish i could have seen this earlier

Step-by-step explanation:

Answer:

typing 16 words in 2/3 of a minute

Step-by-step explanation:

Answer:

2k+7

Step-by-step explanation:

4k - 1 ( 2k - 7 )

4k-2k +7

Answer: The slope would be 2/5.

Step-by-step explanation: To find the slope, it's rise divided by run. The 2 points on this graph are (-2,-1) and (3,1). So basically,  change in y value, divided by the change in x value.

The correct statement is  written in standard form, the polynomial is 7x^4 + x^3 + 2x^2 – 3

A polynomial function is a mathematical expression that is consists of different types of variables such as non-zero coefficients, positive exponents, and constants.

1. Linear polynomial function: it is made up of a single variable raised to the power of 1. An example is y + 2

2.  Quadratic polynomial function - it has a single variable and it is raised to the power of 2. An example is x² + 10x + 25

3. Cubic polynomial function: it has a single variable raised to the power of 3. An example is 5y³ + y²

4. Binominal function: this is a function that contains only two terms. An example is t³ - 400

To learn more about polynomials, please check: https://brainly.com/question/17822016