A prism, bases of which are equilateral triangles, circumscribes a sphere of radius 6. What is the volume of the prism?

Answers

Answer 1

Answer:

  1296√3 cubic units

Step-by-step explanation:

The volume of the prism will be the product of its base area and its height. Since it circumscribes a sphere with diameter 12, that is the height of the prism.

The central cross section of the sphere is a circle of radius 6, and that will be the size of the incircle of the base. That is, the base will have an altitude of 3 times that incircle radius, and an edge length of 2√3 times that incircle radius. Hence the area of the triangular base is ...

  B = (1/2)(6×2√3)(6×3) = 108√3 . . . . . square units

The volume of the prism is then ...

  V = Bh = (108√3)(12) = 1296√3 . . . cubic units

_____

Comment on the geometry

The centroid of an equilateral triangle is also the incenter and the circumcenter. The distance of that center from any edge of the triangle is 1/3 the height of the triangle. So, for an inradius of 6, the triangle height is 3×6 = 18. The side length of an equilateral triangle is 2/√3 times the altitude, so is 12√3 units for this triangle.


Related Questions

What is the distance between the coordinates (5,5) and (7,2)? Round your
answer to the nearest tenth.

Answers

Answer:

4

Step-by-step explanation:

when you write them down and draw a diaganal line from 7,2 to 5,5 it passes 4 intersections, so it would be 4 units. When you round if it is 4 or less it stays the same and if it is 5 or more then it changes so it would still be 4.

Stay Safe

A pitcher struck out 11 out of 40 batters. Write an equivalent decimal.

Answers

Answer:

0.275

Step-by-step explanation:

We want to write 11 out of 40 batters as a decimal.

We can write 11 out of 40 as a fraction to get:

[tex] \frac{11}{40} [/tex]

Note that:

[tex] \frac{11}{40} = \frac{1}{4} \times \frac{11}{10} [/tex]

This implies that:

[tex] \frac{11}{40} = 0.25 \times 1.1[/tex]

This gives us

[tex] \frac{11}{40 } = 0.275[/tex]

What is larger? -1 or -4/3

Answers

Answer:

-4/3

Step-by-step explanation:

-4/3 is equal to -1 1/3 which is greater than just -1

Answer: -1 is ;larger

what is 738 divided by 13 in fraction form

Answers

Answer:

56.76923076...

Step-by-step explanation:

738 divided by 13 should be [tex]\frac{738}{13}[/tex] as an improper fraction.

As a mixed fraction, it is: [tex]56\frac{10}{13}[/tex]

And as a decimal it is approximately 56.769

I did this problem on a calculator after doing some written work on it.

can you find the simplest form of this math problem.

Answers

Answer:

- 7y²

Step-by-step explanation:

(0,01)⁻¹/² × ∛(- 343y⁶/1000) =

= -(1/100)⁻¹/² × ∛( - 7³y⁶/10³)

= - 100¹/² × 7y²/10

= -(10²)¹/² × 7y²/10

= - 10 × 7y²/10

= - 7y²

Answer:

-7y^2

Step-by-step explanation:

(0.01)^(-1/2) = (1/0.01)^(1/2) = 100^(1/2) = 10

(-343 × y^6 ÷ 1000)^(1/3) =

(-343)^(1/3) × (y^6)^(1/3) ÷ 1000^(1/3)

= -7 × y^2 ÷ 10 = -0.7y^2

10 × -0.7y^2

-7y^2

pls help me for part A and B if correct I will mark brainslit :)) !!

Answers

Answer:

answer choice b is the correct answer

Step-by-step explanation:

5/8 times 2 1/2

1 3/4

1 3/4 > 1 1/4

30 kg into 5:3 ratio

Answers

Answer:

18.75 Kg : 11.25 Kg

Step-by-step explanation:

Sum the parts of the ratio, 5 + 3 = 8 parts

Divide 30 Kg by 8 to find the value of one part of the ratio

30 Kg ÷ 8 = 3.75 Kg ← value of 1 part of the ratio, thus

5 parts = 5 × 3.75 Kg = 18.75 Kg

3 parts = 3 × 3.75 Kg = 11.25 Kg

Jill traced the. three shapes shown out of cardboard for an art project. Select all of the shapes that will give Jill a piece of cardboard with the same total area. Please help!

Answers

Answer:

1st and 3rd figures have the same area

Step-by-step explanation:

1st figure is combined figure consisting of 4 m by 5 m rectangle and right triangle with legs

[tex]4-1=3\ m[/tex] and [tex]10-5=5\ m[/tex]

The area of the first figure is

[tex]A_{rectangle}=4\times 5=20\ m^2\\ \\A_{triangle }=\dfrac{1}{2}\cdot 3\cdot 5=7.5\ m^2\\ \\A_{1^{st}\ figure}=20+7.5=27.5\ m^2[/tex]

2nd figure is combined figure consisting of 3 m by 6 m rectangle and right triangle with legs

3 m and [tex]1+3+1=5\ m[/tex]

The area of the second figure is

[tex]A_{rectangle}=3\times 6=18\ m^2\\ \\A_{triangle }=\dfrac{1}{2}\cdot 3\cdot 5=7.5\ m^2\\ \\A_{2^{nd}\ figure}=18+7.5=25.5\ m^2[/tex]

3rd figure is combined figure consisting of 10 m by 2 m rectangle and right triangle with legs

3 m and [tex]10-5=5\ m[/tex]

The area of the third figure is

[tex]A_{rectangle}=2\times 10=20\ m^2\\ \\A_{triangle }=\dfrac{1}{2}\cdot 3\cdot 5=7.5\ m^2\\ \\A_{3^{rd}\ figure}=20+7.5=27.5\ m^2[/tex]

What is 10 +19. +20000000000000

Answers

The answer is 20000000000029

Answer is: 20000000000029

Organize the following polynomial expressions from least to greatest based on their degree: (2 points)

I. x + 2xyz
II. 9x3y2
III. 18x2 + 5ab − 6y
IV. 4x4 + 3x2 − x − 4

Answers

On arranging from least to greatest based on their degree:

[tex]18x^2 + 5ab - 6y\\\\x + 2xyz\\\\4x^4 + 3x^2 -x-4\\\\9x^3y^2[/tex]

Solution:

Given that,

Organize the following polynomial expressions from least to greatest based on their degree

Degree of polynomial is highest power of the variable in the algebraic expression

For polynomial with more than one variable, find the degree of each monomial and then add them and choose the largest exponent

[tex]I) x + 2xyz \\\\Degree\ of\ x = 1\\\\Degree\ of\ 2xyz = 1 +1 + 1 = 3[/tex]

Thus degree is 3

[tex]II) 9x^3y^2\\\\Degree = 3 + 2 = 5[/tex]

Thus degree is 5

[tex]iii) 18x^2 + 5ab - 6y\\\\Degree\ of\ 18x^2 = 2\\\\Degree\ of\ 5ab = 1 + 1 = 2\\\\Degree\ of\ 6y = 1[/tex]

Thus degree is 2

[tex]iv) 4x^4 + 3x^2 -x-4\\\\Degree\ of\ 4x^4 = 4\\\\Degree\ of\ 3x^2 = 2\\\\Degree\ of\ x = 1\\\\Degree\ of\ 4 = 0 (since\ degree\ of\ constants\ is\ 0)[/tex]

Thus degree is 4

On arranging from least to greatest based on their degree:

[tex]18x^2 + 5ab - 6y\\\\x + 2xyz\\\\4x^4 + 3x^2 -x-4\\\\9x^3y^2[/tex]

2x-4=10 reverse order algebra

Answers

Answer:

7

Step-by-step explanation:

2x-4=10

2x=10+4

2x=14

x=14/2

x=7

One side of a triangle is 2 times the second side. The third side is 5 feet longer than the second side. The perimeter of a triangle is 81 feet. Find the length of each side.

Answers

Answer:

The length of the side of the triangles are;

First side = 38 ft

Second side = 19 ft

Third side =24 ft

Step-by-step explanation:

To solve the question we are going to take;

Second side is x ft

Since, the first side is 2 times the second side then;

First side of the triangle is 2x ft

Since the third side is 5 ft less than the second side, then;

The third side is (x+5) ft

But, the perimeter of the triangle is 81 ft

Perimeter of a triangle is given by the sum of sides;

Therefore;

x + 2x +(x +5) = 81 ft

4x + 5 = 81

4x = 76

    x = 19 ft

Therefore;

Second side = 19 ft

First side = 38 ft

Third side = 24 ft

What is the slope of the line that contains these points?
x -4, 1, 6, 11
y -3,-2,-1,0

Answers

Answer:

slope = 1/5

Step-by-step explanation:

[tex]\frac{0-(-3)}{11-(-4)} =\frac{3}{15} =1/5[/tex]

What is diversification?

A. investing in volatile stocks
B. investing in various types of investments
C. investing in low-risk investments

(20 points!!!!!! )

Answers

Answer:

b. investing in various types of investments

Step-by-step explanation:

i hope this helps!

brainliest is appreciated... :}

Answer:

1. diversification is the process of allocating capital in a way that reduces the exposure to any one particular asset or risk.

A. Stock market volatility is arguably one of the most misunderstood concepts in investing.

(B i) Stocks.

(ii) Bounds

(III) mutual funds

(iv) index funds

(C). Bank Savings.

Certificates of Deposit (CDs) ...

Treasury Securities. ...

Money Market Accounts. ...

Stable Value Funds. ...

Fixed Annuities. ...

Immediate Annuities

Which quadrilateral can be inscribed in a circle?
A) A
B) B
C) C
D) D

Answers

Answer:

The correct option is A

Therefore the quadrilateral in the option A can be inscribed in a circle.

Step-by-step explanation:

Given:

Four Quadrilateral, A ,B ,C ,D in the figure below.

For a quadrilateral to be inscribed in a circle we required opposite angles must be supplementary, that is it should add up to 180°.

So from the four given quadrilateral we have only in quadrilateral A the opposite angles are supplementary.

Quadrilateral A :

Consider the quadrilateral PQRS where

∠SPQ = 91°

∠PQR = 101°

∠QRS = 89°

∠SPQ  and ∠QRS  are opposite angles and their sum is 180°

[tex]\angle SPQ+\angle QRS = 91+89 =180[/tex]

Others in option B, C , and D opposite angles are not supplementary hence cannot inscribe in a circle.

Therefore the quadrilateral in the option A can be inscribed in a circle.

Answer:

c Mark me as the brainiest

Step-by-step explanation:

A quadrilateral that can be inscribed in a circle has vertices that lie on a single circle. A distinguishing property of such quadrilaterals is that they have opposite angles adding up to 180°. Non-rectangular parallelograms cannot be inscribed in circles, because their opposite angles are equal rather than supplementary.

Approximately 68% of films are rated R. If 720 films were recently rated, how many were rated R?

Answers

Answer:

Approximately 490 films were rated R.

Step-by-step explanation:

Total films recently rated is 720. About 68% of the films were rated R. Thus, 68% of 720 is calculated below.

[tex]68\% \: of \: 720 \: films[/tex]

[tex] = \frac{68}{100} \times 720[/tex]

[tex] = 0.68 \times 720[/tex]

[tex] = 489.6[/tex]

[tex] = 490 \: films \: (approximated)[/tex]

Therefore, if 720 films were recently rated, 68% of films rated R is about 490 films.

How do you find a volume of a sphere? Please explain. (Also if you can please someone answer the other questions I asked but it has not been answered.)

Thanks!

Answers

Answer:

  V = (4/3)πr³

Step-by-step explanation:

The formula usually used to find the volume of a sphere is ...

  [tex]V=\dfrac{4}{3}\pi r^3[/tex]

where r represents the radius of the sphere.

The actual math involved will depend on what information about the sphere you are given. If you are given the radius or diameter (twice the radius), then this formula will be directly useful.

To determine the volume of a sphere, use the formula V = ([tex]\frac{4}{3}[/tex])πr³. Measure the radius, cube it, multiply by pi, and then multiply by 4/3.

To find the volume of a sphere, you use the formula:

V = ([tex]\frac{4}{3}[/tex])πr³

Here, V stands for volume, r represents the radius of the sphere, and π (pi) is approximately 3.14159.

Step-by-Step Explanation:

Measure the radius r of the sphere.Cube the radius (multiply it by itself three times): r³.Multiply the cubed radius by π (pi).Multiply the result from step 3 by 4/3.

The scale of a railroad train set is 3.5 mm to 1 foot if the link of the model car in this it is 150 mm what is the approximate length of an actual car

Answers

The actual length of car is 42.857 foot

Solution:

Given that,

The scale of a railroad train set is 3.5 mm to 1 foot

The link of the model car in this it is 150 mm

To find: Length of actual car

Let "x" be the length of actual acr

From given,

Scale is:

3.5 mm : 1 foot

Then, given that link of the model car in this it is 150 mm

Then we get,

3.5 mm : 1 foot

150 mm : x foot

This forms a proportion and we can solve the sum by cross multiplying

[tex]3.5 \times x = 1 \times 150\\\\x = \frac{150}{3.5}\\\\x = 42.857[/tex]

Thus the actual length of car is 42.857 foot

Annabella has a cup of raisins. She gave equal portions of 1/2 cups of the raisins to her for siblings which diagram could Annabella used to find the fraction of the love the each sibling receives

Answers

Answer:1/4

Step-by-step explanation:

Evaluate f(5):f(x) = x2 - 16x - 48

Answers

Answer:

f(5)=-103

Step-by-step explanation:

f(x) =x^2-16x-48

x=5

f(5)=5^2-16*5-48

f(5)=25-80-48

f(5)=-103

A cylinder has a height of h meters, and the base has a radius of 7 meters. If the volume of the cylinder is 539π find the height

Answers

Answer:

Therefore,

The Height of Cylinder is 11 meters.

Step-by-step explanation:

Given:

Cylindrical Shape

Radius = r = 7 meter

Volume of Pipe = 539π

To Find:

Height = ?

Solution:

Formula for Volume of Cylinder is given by

[tex]\textrm{Volume of Cylinder}=\pi (Radius)^{2} \times Height[/tex]

Substituting the given values we get

[tex]539\pi=\pi(7)^{2}\times Height\\\\Height=\dfrac{539}{49}=11\ meter[/tex]

Therefore,

The Height of Cylinder is 11 meters.

there are 25 animals in the field. Some are horses, some are ducks. There are 84 legs in all. How many of animal are in the field?

Answers

Answer:

Ducks = 8

Horses = 17

Step-by-step explanation:

From the question;

Total number of animals = 25 Total number of legs = 84 legs

We are required to determine the number of ducks and horses;

We need to know that;

A duck has two legs while a horse has four legs;

Assuming there were x ducks and y horses

Then;

x + y = 25 ................................Eqn 1

And;

2x + 4y = 84 .............................Eqn 2

Solving the two equations simultaneously we can get the number of each animal.

x + y = 25

2x + 4y = 84

Multiplying the first equation by 2, we get

2x + 2y = 50

2x + 4y = 84

Subtracting the two equations;

2x + 2y = 50

2x + 4y = 84

........................................................

      - 2y = -34

          y = 17

Solving for x

x = 25 -17

    = 8

Therefore; there were 8 ducks and 17 horses in the field

2x246-2x3-194 add brackets to make the question right.

Answers

Answer:

(2*246)-(2*3)-194=492-6-194=292

Step-by-step explanation:

3. Bill's baseball bag weighs 4 pounds. If he takes out a pair of cleats
that weigh 6 ounces, how much will his bag weigh?

Answers

Answer:

58 ounces

Step-by-step explanation:

16 x 4=64 - 6=58 ounces

Final answer:

After converting the weight of the cleats from ounces to pounds, the new weight of Bill's baseball bag is determined to be 3.625 pounds by subtracting 0.375 pounds (weight of the cleats in pounds) from the original 4 pounds.

Explanation:

The subject of this question is Mathematics, specifically dealing with unit conversion and simple subtraction of weights. To determine the new weight of Bill's baseball bag after removing the cleats that weigh 6 ounces, we need to first convert the ounces to pounds, since the weight of the bag is given in pounds.

There are 16 ounces in one pound. Therefore, 6 ounces is equivalent to 6 ounces \/ 16 ounces per pound = 0.375 pounds. Starting with the original weight of the bag which is 4 pounds, subtracting the weight of the cleats in pounds will give us the new weight of the bag.

4 pounds - 0.375 pounds = 3.625 pounds. This is the weight of Bill's baseball bag after the cleats are removed.

Family room measures 23 feet by 28 feet. They are covering the floor with tiles that measure 1 foot on a side and cost $0.94 each. How many will they spend on the tile?

Answers

Answer:

$605.36

Step-by-step explanation:

They will spend  644* 0.94 = 605.36

Sure you can write in one line

23*28*0.94 = $605.36

Factor completely 8y^2+6y+1

Answers

8y² + 6y + 1 = (4y + 1)(2y + 1)


Find the Sum.
213,857 +43,762

Answers

The answer is 257,622
The answer is 257,655

Solve the following by using mathematical Induction. For >/ 1
1^2+2^2+3^3+......+ n^2 = 1/6 n(n+1)(2n+[)

Answers

Answer:

See explanation

Step-by-step explanation:

Prove that

[tex]1^2+2^2+3^3+...+n^2=\dfrac{1}{6}n(n+1)(2n+1)[/tex]

1. When [tex]n=1,[/tex] we have

in left part [tex]1^2=1;[/tex] in right part [tex]\dfrac{1}{6}\cdot 1\cdot (1+1)\cdot (2\cdot 1+1)=\dfrac{1}{6}\cdot 1\cdot 2\cdot 3=1.[/tex]

2. Assume that for all [tex]k[/tex] following equality is true

[tex]1^2+2^2+3^3+...+k^2=\dfrac{1}{6}k(k+1)(2k+1)[/tex]

3. Prove that for [tex]k+1[/tex] the following equality is true too.

[tex]1^2+2^2+3^3+...+(k+1)^2=\dfrac{1}{6}(k+1)((k+1)+1)(2(k+1)+1)[/tex]

Consider left part:

[tex]1^2+2^2+3^2+...+(k+1)^2=\\ \\=(1^2+2^2+3^3+...+k^2)+(k+1)^2=\\ \\=\dfrac{1}{6}k(k+1)(2k+1)+(k+1)^2=\\ \\=(k+1)\left(\dfrac{1}{6}k(2k+1)+k+1\right)=\\ \\=(k+1)\dfrac{2k^2+k+6k+6}{6}=\\ \\=(k+1)\dfrac{2k^2+7k+6}{6}=\\ \\=(k+1)\dfrac{2k^2+4k+3k+6}{6}=\\ \\=(k+1)\dfrac{2k(k+2)+3(k+2)}{6}=\\ \\=(k+1)\dfrac{(k+2)(2k+3)}{6}[/tex]

Consider right part:

[tex]\dfrac{1}{6}(k+1)((k+1)+1)(2(k+1)+1)=\\ \\\dfrac{1}{6}(k+1)(k+2)(2k+3)[/tex]

We get the same left and right parts, so the equality is true for [tex]k+1.[/tex]

By mathematical induction, this equality is true for all n.

What are all of the Angle measures

Answers

Answer:Type of Angle Description

Acute Angle is less than 90°

Right Angle is 90° exactly

Obtuse Angle is greater than 90° but less than 180°

Straight Angle is 180° exactly

Step-by-step explanation:

Answer:

∠ABC = 62°, ∠DBE = 62°, ∠CBE = 118°, ∠ABD = 118°

Step-by-step explanation:

Solving for x

We can say that angle ABC and angle DBE are vertically opposite angles because there are only two intersecting lines. Vertically opposite angles are equal so we can form an equation:

4x + 2 = 5x - 13

5x - 4x = 2 + 13

x = 15

Angles ABC and DBE

Now we can substitute x into the equation and find out the value for angles ABC and DBE.

4(15) + 2 = 60 + 2 = 62°, just to make sure we need to substitute x into the other equation to see whether we get the same answer:

5(15) - 13 = 75 - 13 = 62°, now we can confirm that angles ABC and DBE are 62°.

Angles CBE and ABD

Now we can use the rule, angles on a straight line add up to 180°, to find the other two angles, because these two angles are vertically opposite, they are also equal to each other.

180 - 62 = 118°

Angles CBE and ABD are both 118°

Determine the equation of the linear function that has a slope of -4 and passes through the point (2,-4). Write the equation in slope-intercept form and draw/graph the equation

Answers

Answer:

Part 1) [tex]y=-4x+4[/tex]

Part 2) The graph in the attached figure

Step-by-step explanation:

Part 1)

we know that

The linear equation in slope intercept form is equal to

[tex]y=mx+b[/tex]

where

m is the slope

b is the y-intercept

we have

[tex]m=-4\\point\ (2,-4)[/tex]

substitute in the linear equation

[tex]-4=-4(2)+b[/tex]

solve for b

[tex]-4=-8+b\\b=8-4\\b=4[/tex]

substitute

[tex]y=-4x+4[/tex]

Part 2) Draw the equation

we know that

To graph a line we need two points

we have the y-intercept (0,4) and (2,-4)

Plot the points, connect them and join to draw the line

see the attached figure

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The longest side of the triangle section is 4 feet shorter than twice the shortest side. The third side is 3 feet longer than the shortest side. The perimeter is 59 feet . How long is each side Which of the following pieces of evidence is the strongest support for a claim limiting access to fast food for children?A. Fast food affects your brain function.B. Fast food should not sold to children.C. A daily two percent metabolic imbalance between intake of calories and physical exercise can lead to obesity; heavy users of fastfood products register an imbalance of more than ten percent.D. Fast food is expensive During the Hellenic Age, a dominant feature of Greek society was a. cooperation among the Greek poleis. b. instability within each polis. c. the building of walls around the Aegean. d. equality between men and women. What is the slope of the line that passes through (-3, 6) and (6, 8)? Type a numerical answer in the space provided. If necessary, use the / key for a fraction bar. Do not include spaces in your answer.a0 Research suggests that children who eat hot breakfast at home perform better at school. Many argue that not only hot breakfast but also parental care of children before they go to school has an impact on childrens performance. In this case, parental care is moderating variable.TrueFalse Cleftell Inc., a coal mining company in the United States, is the only supplier of coal in its area. The company is backed by the government as it offers its supplies at a discounted rate. Government backing makes it easier for the company to deal with legislation, thereby increasing its overall efficiency and productivity. Which of the following market structures is exemplified in the scenario? a. Monopsony b. Pure competition c. Oligopoly find the point slope form for (-4,-9) and (1,6) Explain the concept of reciprocal determinism and how it relates to both negative and prosocial behaviors found on television. People in our society tend to think of themselves in terms of their individuality, but we are also all products of our __________, such as the time and place we live and the family we were born into.a. social contextsb. interests and skillsc. genetic makeupd. likes and dislikes solve using sublimationy=8x+13-4x-5y=23 Assume that England and Spain each has 40 labor hours available. Originally, each country divided its time equally between the production of cheese and bread. Now, each country spends all its time producing the good in which it has a comparative advantage. As a result, the total output of cheese increased by What is the equation for the line of reflection? On a coordinate plane, triangle A B C has points (6, 3.7), (5.4, 2), (1, 3). Triangle A prime B prime C prime has points (3.7, 6), (2, 5.4), (3, 1). x = 3 y = 3 y = x x = 6 3. PART A: Which connection does Gerald draw betweenhis experience as youth with his business success?A Gerald learned that it was possible to not believewhen the Second Coming of Christ did not happen,and eventually stopped believing in his own businessmodel.Gerald's realization that Jesus was not returning toearth made him go on to question the authority ofthose in the church and in the business world.C Waiting for the Second Coming of Christ taughtGerald the perseverance that contributed to hissuccess as a business man.D Gerald's business ideas were first inspired by thehome burglary he experienced as a youth, he'd feltlike he'd been let down by others and didn't wantpeople to experience that, An increase in the financial leverage of a firm as a result of an increase in outstanding debt has which effect on the potential reward to stockholders while increasing the risk of financial distress or bankruptcy? If a firm is interested in improving their human capital, which are they most likely to consider? A)investing in new capital equipment B)increasing the capital to labor ratio C)replacing current workers with new hire D)investing in training and education for their workers What is the subject in the following sentence? She told him the truth. A new extended-life light bulb has an average life of 750 hours, with a standard deviation of 50 hours. If the life of these light bulbs approximates a normal distribution, about what percent of the distribution will be between 600 hours and 900 hours? A scientist is designing a clinical trial to test the effect of online chat counseling with migraine sufferers as a supplementary treatment in combating their migraines. Migraine sufferers will have access to counselors via online chat software; the scientist plans to see whether their migraine pain has been reduced after six weeks. Preliminary information suggests that the effect of (face-to-face) counseling is larger for migraine sufferers who are women than men. Knowing this, the scientist would probably use a: why was claudette colvin important? in own words please what is 44/12 as a simplified mixed fraction