Louis Poinsot established the patterns for the icosahedron and the dodecahedron in
1809. Besides really long words, what are they?

Answers

Answer 1

Answer:

Platonic solids

Step-by-step explanation:

Answer 2

To solve this we must be knowing each and every concept related to geometry. Therefore, icosahedron and the dodecahedron represents geometry of molecule.

What is geometry?

Molecular geometry in chemistry depicts a molecule's three-dimensional form as well as the relative location of its atomic nuclei.

Understanding a molecule's molecular geometry is critical since the spatial connection between atoms dictates its reactivity, color, bioactivity, state of matter, polarization, as well as other features. A molecule's form influences its physical and chemical properties, including its colour, sensitivity, and bioactivities. Icosahedron and the dodecahedron represents geometry of molecule.

Therefore, icosahedron and the dodecahedron represents geometry of molecule.

To learn more about geometry, here:

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Related Questions

What are two ways you could represent the expression 3-4n

Answers

There are not just "the two ways" to represent this expression. There are two ways, surely, but they are not the only ways as implied.

You could expose 4 and get something like [tex]4(\frac{3}{4}-n)[/tex] or expose 3 and get something like [tex]3(1-\frac{4}{3}n)[/tex].

But you could also say something like [tex]3-(1+3)n=3-n-3n=-3(n-1)-n[/tex]... in fact there are a lot of ways to write any expression.

Hope this helps :)

Please help

Solve the inequality.
|14 – 5x] > 8
[?]
x <
or x >
A

Answers

Answer:

x< -4/1 or x > 6/5

If our answers are different, just say so :)

Find the value of x.
95
38°
X

Answers

Answer:

47

Step-by-step explanation:

x is one of the three angles of a triangle. The other two are given as 95 and 38.

Together all three have to make 180 degrees.

x + 95 + 38 = 180

x + 133 = 180

x = 180 - 133

x = 47

Answer:

47

Step-by-step explanation:

as we know that sum of a triangle is always=180°

so x+38°+95°=180

so x+133=180

and x=180-133

so x= 47

Which of the following statements is true for the following data set?
7, 5, 6, 4, 7, 8, 12
a. Only the mean and median are equal.
b. Only the mean and mode are equal.
c. Only the median and mode are equal.
d. The mean, median, and mode are all equal.

Answers

Answer:

D.

Step-by-step explanation:

Mean : 7 + 5 + 6 + 4 + 7 + 8 + 12 = 12 + 10 + 7 + 20 = 30 + 19 = 49. 49/7= 7

Mode : 7.

Median 4 , 4, 6, 7, 7, 8, 12.    7 is the middle number

Three foreign languages are offered at Cliff High School. 1/6 of the students take French, 1/5 take Spanish, and 1/3 German. Which
fraction represents the number of students taking a foreign language at Cliff HS?

Answers

Answer:

1/3

Step-by-step explanation:

You have two cards with a sum of (-12) in your hand.
Add two more cards but the total of cards stay the same

Answers

Answer:

you could have a 6 and then a -6

or a 3 and a -3

or 0 and 0

have 2 cards with the same number but one is negative

Step-by-step explanation:

A troop leader recorded whether the members of two troops prefer hiking or swimming. The troop leader plans to create a two-way table to display the results.

Which variables can the troop leader use as the row and column headings of the table?
troop number and number who prefer hiking
troop number and activity preference
activity preference and number of troop 1 members
activity preference and number of troop 2 members

Answers

The second one is the correct answer

Answer:

troop number and activity preference or b

Step-by-step explanation:

Help I need an equation and an answer


37. Mia won $77 in a raffle at her team's fundraiser. Later she split it amongst her friends and gave $14 to each, keeping $21 for herself. How many friends did she share it with?​

Answers

she share it to thirty seven people

S...
Find the length of UT.
12
T
14
W
2x+2
2x + 5
V
A. 32
B. 43
O o
C. 21
D. 39

Answers

9514 1404 393

Answer:

  A. 32

Step-by-step explanation:

The relationship between segment lengths is ...

  WT·WU = WC·WV

  14(2x +2) = 12(2x +5)

  28x +28 = 24x +60

  4x = 32

  2x = 16

Then the measure we're after is ...

  UT = WT +WU = 14 +(16 +2)

  UT = 32

The formula for determining the pressure, p, exerted on an object at a depth, h, below the surface of a liquid is p = s + dgh, where s is the atmospheric pressure, d is the density of the liquid, and g is the acceleration due to gravity.

(Pls Explain in Simple terms)

Answers

Answer:

The formula for determining the pressure, p, exerted on an object at a depth, h, below the surface of a liquid is p = s + dgh,

State the domain of each function.

1. [tex]g(a)=\sqrt{1+a^{2}}[/tex]

2. [tex]f(x)=\frac{2}{x} + \frac{4}{x+1}[/tex]

Please show your work, as the steps are the only reason I'm asking.

Answers

Answer:

[tex] \rm \displaystyle g(a) = \sqrt{1 + {a}^{2} } \xrightarrow{ \rm Domain}a \in \mathbb{R}[/tex]

[tex] \rm\displaystyle f(x)=\frac{2}{x} + \frac{4}{x+1} \xrightarrow{ \rm Domain}x \in \mathbb{R} / \{0, - 1 \}[/tex]

Step-by-step explanation:

Question-1:

we want to figure out the domain of the following function:

[tex] \displaystyle g(a) = \sqrt{1 + {a}^{2} } [/tex]

remember that, the domain of an even root function are all values of x for which the redicand is positive or 0 that is being said the domain of the function g(a) belong to [tex]\mathbb{R}[/tex] . another way to think about it, the domain of square root function f(x) belong to x≥0. In this case we have square variable in the redical so when we input a negative number, it yields a positive number with that said the domain of the function g(a) belong to all the real numbers.Thus,

[tex] \rm \displaystyle g(a) = \sqrt{1 + {a}^{2} } \xrightarrow{ \rm Domain}a \in \mathbb{R}[/tex]

Question-2:

we'd like to find the domain of the following function:

[tex] \displaystyle f(x)=\frac{2}{x} + \frac{4}{x+1}[/tex]

in order to do so we need to simplify it further,so simplify addition in order to do so the first step is to figure out the LCM of the denominator i.e x(x+1) +x, secondly divide the denominator of every fraction by the LCM and multiply the result by the numerator of very fraction ,then finally add them therefore,

[tex] \displaystyle f(x)=\frac{2x + 2+4x}{ {x}^{2} + x } \\ \displaystyle \boxed{\frac{6x + 2}{ {x}^{2} + x }} [/tex]

we know that the domain of a rational function are all the values of x for which the denominator is different than 0.

the denominator of the function would be 0 when x=0 and -1 thus,

[tex] \rm\displaystyle f(x)=\frac{2}{x} + \frac{4}{x+1} \xrightarrow{ \rm Domain}x \in \mathbb{R} / \{0, - 1 \}[/tex]

and we're done!

A baseball player had a batting average of 0.334 for the season. Write this numbwr in expanded form​

Answers

Answer:

0.300 + 0.030 + 0.004

or

0.100 x 3  +  0.01 x 3  +  0.001 x 4

New Orleans is 2 meters below sea level.
Baton Rouge is 17 meters above sea level.
How much higher is Baton Rouge than New Orleans?

Answers

Answer:

Baton Rouge is 19 meters higher that New Orleans.

solve -5x+y=1 and 9x-2y=4 using multiplication and then elimination.​

Answers

Answer:

x = - 6, y = - 29

Step-by-step explanation:

Elimination:

2*(-5x + y = 1) = -10x + 2y = 2

9x - 2y = 4 = + (9x - 2y = 4) =

-x = 6

x = -6

9(-6)-2y=4

-54-2y=4

-2y=58

y=-29

Simplify the following expression. 2p – 10 – 4p – 7

Answers

Answer:

the answer is-2p-3

hope is helpful

Answer:

2p – 10 – 4p –7

–2p –17

I hope I helped you^_^

brainliest to best answer

Answers

Answer:

2

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

so 2x1=2 so -2x-1=2

if its wrong i dont now cause im silly

If z=(x+y)e^y and x=5t and y=1−t^2, find the following derivative using the chain rule. Enter your answer as a function of t.

dz/dt= ?

Answers

By the chain rule, if [tex]z=f(x,y)=f(x(t),y(t))[/tex], then

[tex]\dfrac{\mathrm dz}{\mathrm dt} = \dfrac{\partial f}{\partial x}\dfrac{\mathrm dx}{\mathrm dt} + \dfrac{\partial f}{\partial y}\dfrac{\mathrm dy}{\mathrm dt}[/tex]

We have [tex]f(x,y)=(x+y)e^y[/tex], for which

• [tex]\dfrac{\partial f}{\partial x} = e^y[/tex]

• [tex]\dfrac{\partial f}{\partial y} = e^y + (x+y)e^y = (x+y+1)e^y[/tex]

and [tex]x(t)=5t[/tex] and [tex]y(t)=1-t^2[/tex], so that

• [tex]\dfrac{\mathrm dx}{\mathrm dt} = 5[/tex]

• [tex]\dfrac{\mathrm dy}{\mathrm dt} = -2t[/tex]

Putting everything together, we get

[tex]\dfrac{\mathrm dz}{\mathrm dt} = 5e^y - 2t(x+y+1)e^y \\\\ \dfrac{\mathrm dz}{\mathrm dt} = 5e^{1-t^2} - 2t(5t-t^2+2)e^{1-t^2} = \boxed{\left(2t^3-10t^2-4t+5\right)e^{1-t^2}}[/tex]

The solution of the derivative using the chain rule is [tex]\dfrac{dz}{dt}=(2t^3-10t^2-4t+5)e^{1-t^2}[/tex].

What is the Chain rule?

The chain rule explains how to calculate a composite function's derivative.

What is a composite function?

If you may write [tex]f(g(x))[/tex] , a function is composite. It's a function within a function, or a function of a function, in other words.

By the chain rule, we can write if [tex]z=f(x,y)=f(x(t),y(t))[/tex], then,

[tex]\dfrac{dz}{dt}=\dfrac{\partial f}{\partial x} \dfrac{dx}{dt}+\dfrac{\partial f}{\partial y} \dfrac{dy}{dt}[/tex]

As it is given to us, [tex]f(x,y)=(x+y)e^y[/tex], therefore, we can write,

[tex]\dfrac{\partial f}{\partial x}=e^y[/tex][tex]\dfrac{\partial f}{\partial y}=e^y+(x+y)e^y=(x+y+1)e^y[/tex]

And x(t)=5t, while y(t)=1-t², So,

[tex]\dfrac{dx}{dt}=5[/tex][tex]\dfrac{dy}{dt}=-2t[/tex]

Now, Substitute all the values together, in the equation,

[tex]\dfrac{dz}{dt}=\dfrac{\partial f}{\partial x} \dfrac{dx}{dt}+\dfrac{\partial f}{\partial y} \dfrac{dy}{dt}[/tex]

Substituting the values we will get,

[tex]\dfrac{dz}{dt} &=(5 \times e^y)+[-2t(x+y+1)e^y]\\\\[/tex]

     [tex]=5e^{1-t^2}-2t(5t-t^2+2)e^{1-t^2}\\\\=(2t^3-10t^2-4t+5)e^{1-t^2}[/tex]

Hence, the solution of the derivative using the chain rule is [tex]\dfrac{dz}{dt}=(2t^3-10t^2-4t+5)e^{1-t^2}[/tex].

Learn more about Chain Rule:

https://brainly.com/question/2285262

need help with some khan academy stuff

Answers

Answer:

2.2 % per minute

35 minutes

Step-by-step explanation:

(0,23%) and (30, 89%)

We can find the slope

m = ( y2-y1)/(x2-x1)

    = (89-23)/(30-0)

   66/30

   =2.2 % per minute

To get to full change we need 100-23 = 77 %

77% * 1 minute/ 2.2 % =35 minutes

PLS PLS PLS IM BEGGING YOU, HELP ME, i’ve been trying so hard to solve this for hours and i still dont get it :( pls help me

Answers

Answer:

m=79

t=54

Step-by-step explanation:

yes these are the answers

Answer:

angle  t =  54 degrees

angle m=79(alternate angles)

Step-by-step explanation:

angle p=126 degrees

angle z=79 degrees

 

angle p + angle t=180(allied angles)

      126 + t           =180

                t           =180-126

                        t =  54 degrees

u=79(vertically opposite angles)

therefore;

    angle m=79(alternate angles)

The points represented by the (x,y) coordinate pairs in the table below all lie on line k. What is the slope of line k?

Answers

Answer:

the slope is -2/1

You can find it by using the equation [tex]\frac{y_{1}- y_{2} }{x_{1}- x_{2} }[/tex]

so 3-1/1-2= 2/-1, which is also written as -2/1

Find the output, k, when the input, t, is -7.

k= 10t - 19

k=

Answers

Answer:

Here is the answer . hope this helps.

Barry is checking his bank account for a few transactions that he completed. He had $230
in his account to start and then contributed a check for $360. He paid his water, electric and
cable bill, which were $100, $46 and $107. How much money is in his bank account?

A. $253
B. $383
C. $590
D. $337

Answers

Answer:

D.

Step-by-step explanation:

$230 + $360 = $590

$590 - $253* = $337

$337

*( total sum of all the bills )

A rectangle has an area of 48 cm2 and a perimeter of 38 cm. What are the dimensions of the rectangle?

Answers

The dimensions of the rectangle will be 3 cm. and 16 cm..

Solution:

First, calculating the area of the rectangle, based on these dimensions,

Formula for the area of a rectangle:

A=LW

A=(3)(16), or A=(16)(3)

A=48 cm²✔

So, now we know that these dimensions satisfy the area of the rectangle, but do they satisfy the perimeter of the rectangle?

Now, calculating the perimeter of the rectangle, based on these dimensions,

Formula for the perimeter of a rectangle:

P=2(L+W)

P=2(3+16), or 2(16+3)

P=2(19)

P=38 cm ✔

Now, we know that both of these dimensions satisfy both of the given conditions. So, the final answer is that the two dimensions of the rectangle are 3 cm. and 16 cm.. I hope that this answer helped you find what you were looking for. Enjoy your day, and take care.

Does anyone know how to finish this equation?

Answers

Not sure what you mean?

Do the following graphs represent a mathematical function? If not, explain why.

Answers

Answer:

Yes for both

Step-by-step explanation:

In such cases use the vertical line test. If the graph is intersected at more than one point, it is not  a function.

Both the given graphs represent a function as both pass the vertical line test.

Answer:

Yes

Step-by-step explanation:

Whenever you are given a problem that's asking to see if a graph is a function or not, always use the vetical line test to determine that. In short, you draw a line accross each y axis point and if the line only goes accross one point throughout the graph then it's a function. Following the test we will see that both graphs are indeed functions.

Best of Luck!

(1/5) to the power of 2

Answers

Answer:

0.04

Step-by-step explanation:

first we change 1/5 into a decimal which is 0.2

the we just multiply it by itself which is

0.04

If 3x+2=5/9, what is the value of −3x+8?

Answers

Answer:

[tex] \frac{85}{9} [/tex]

Step-by-step explanation:

hopefully the picture is clear and understandable!

:)

I apologize for asking this again but I need help finding the complementary angles, ASAP

Answers

Answer:

2nd option is correct

∠AEF and ∠FED , ∠AEG and ∠CEG

Step-by-step explanation:

1st option is a supplementary and even 3rd and 4th options

The perimeter of the triangle below is 4x + 3y. Find the measure of the missing side.

Answers

Answer:

let side be t

t + x + y +x + y = 4x + 3y

t + 2x + 2y = 4x + 3y

t = 2x +y

so missing side length is 2x + y

A parallelogram has a base of 10 centimeters and a height of 4 centimeters. What is the area of the parallelogram?​

Answers

The area of the parallelogram is 40 centimeters

Answer:

Formula = base x height

10 x 4 = 40

Area = 40cm

Step-by-step explanation:

Other Questions
In terms of the scientific method, the purpose of an experiment is: Kris drives 30 miles to work. For the first x miles, he drives 40 miles per hour. Then he is stuck in traffic and averages only 3 miles per hour the rest of the way. This expression can be used to find the total time Kris spends commuting: 40(x) + 3(30 - x).Simplify the expressions.1. 3(30 x)2. 40(x) + 3(30 - x) You have two cards with a sum of (-12) in your hand.Add two more cards but the total of cards stay the same what is it meant by a skill set?Why are communication skills (verbal and nonverbal) an important part of skill set in dealing with employers, coworkers, and customers? If 3x+2=5/9, what is the value of 3x+8? Simplify the following expression. 2p 10 4p 7 I apologize for asking this again but I need help finding the complementary angles, ASAP A rectangle has an area of 48 cm2 and a perimeter of 38 cm. What are the dimensions of the rectangle? golf activity geometry use distance formulaHELP PLEASE n explain if you know! GIVING BRAINLIEST, THANKS AND FIVE STARS!!!!!!Find the greatest common factor of each pair of numbers.1. 24 and 362. 39 and 543. 42 and 984. 48 and 725. 65 and 916. 7 and 20 1+sin^4-cos^4a/1-sin^6-cos^6a=2/3cos^2a Based on Source 2, which statements best describe Athenian democracy? Select the two correct answers.A Most agricultural goods were exported to foreign territories.B Some women filled important elected positions in the Assembly.C Military service qualified people to vote in Athens.D Only citizens of Athens voted in elections and on laws.E People who owned land were excluded from elections.F The laws affected everyone living in Athens. how does calcium atomic radius compare to magnesium (Mg) radius and patssiuks (K) redius? Are (2,9) and (-3,-6) both on the line y = 4x + 6? If not, find an equation for the line that does pass through both points. Ms. Ferris owns a barn 12 yards long What factors are influencing the behavior of birth rate? I. The number of women of childbearing age. II. The adoption of family planning systems. III. The incorporation of women into paid work. A) Only IB) Only IIIC) I and II onlyD) Only II and IIIE) I, II and III The formula for determining the pressure, p, exerted on an object at a depth, h, below the surface of a liquid is p = s + dgh, where s is the atmospheric pressure, d is the density of the liquid, and g is the acceleration due to gravity.(Pls Explain in Simple terms) Description of settlement need help with some khan academy stuff S...Find the length of UT.12T14W2x+22x + 5VA. 32B. 43O oC. 21D. 39