a || b and p is a transversal. If m 1 = 140°, find the
measure of each angle giving one reason for each answer.
(The first one is done for you.)

A || B And P Is A Transversal. If M 1 = 140, Find The Measure Of Each Angle Giving One Reason For Each

Answers

Answer 1

Answer:

Angle 4 = 140

Angle 3= 40

Angle 5=140

angle 6=40

angle 7=40

Step-by-step explanation:

Adjacent angles are congruent. Thats how I can tell angle 4 is 140. And also how i can tell angle 3 is 40. Any questions?

im not explaining the rest im too tired

btw I also do 8th math lol it stinks.


Related Questions

I need some help please

Answers

Answer:

32

Step-by-step explanation:

Substitute values given into the expression :

3[2(1)+(3)]-4[((1)-(3)]+(3)²

3[5]-(-8)+9

15+8+9 =

32

Hope this helped and have a good day

Help pleaseee
Solve for g

Answers

Answer:

g=4f-k+h

Step-by-step explanation:

f=g-h+k

4

4f=g-h+k

4f-k=g-h

4f-k+h=g

What is the cube root of 12 167?

Answers

From the given information provided, the cube root of 12,167 by prime factorization method is approximately 23.

You can find the cube root of 12,167 using a calculator or by using the prime factorization method.

Using the prime factorization method, we can express 12,167 as the product of its prime factors:

12,167 = 19 × 641

Since the cube root of a product is equal to the product of the cube roots of the factors, we can find the cube root of 12,167 as follows:

∛12,167 = ∛(19 × 641)

∛12,167 = ∛19 × ∛641

∛12,167 = 2.7144 × 8.0186

∛12,167 = 23.1649 (rounded to four decimal places)

Therefore, the cube root of 12,167 is approximately 23.

Learn more about prime factorization here: brainly.com/question/18187355

#SPJ4

A quadrilateral has two angles that measure 232° and 86°. The other two angles are in a ratio of 4:17. What are the measures of those two angles?

Answers

The two missing angles of the quadrilateral are 10.5° and 2.47°, calculated from the given angles of 232° and 86°, and a ratio of 4:17.

The angle sum of a quadrilateral is 360°. Therefore, we need to find the sum of the two missing angles.We can start by subtracting the two known angles from the total angle sum and then dividing the difference by the ratio given.

360° - 232° - 86° = 42°

To find the two missing angles, divide the sum by the ratio given.

42° ÷ 4:17

The find the measure of the first angle, divide 42° by 4:

42° ÷ 4 = 10.5°

To find the measure of the second angle, divide 42° by 17:

42° ÷ 17 = 2.47°

Therefore, the two missing angles of the quadrilateral are 10.5° and 2.47°.

Learn more about quadrilateral here:

https://brainly.com/question/29934291

#SPJ4

to find the value of a numerical or algebraic expression is called?

Answers

The process of finding the value of a numerical or algebraic expression is called evaluation.

Evaluation involves substituting the given values of the variables in the expression and then simplifying the expression using the order of operations (PEMDAS).

For example, if we are asked to evaluate the expression 3x + 2y when x=4 and y=5, we would substitute these values to get 3(4) + 2(5), which simplifies to 12 + 10 = 22. Therefore, the value of the expression 3x + 2y when x=4 and y=5 is 22.

In algebra, evaluation is an important process because it allows us to find the value of an expression for specific values of the variables, which can help us to solve equations or inequalities, and to simplify expressions.

You can read more about algebra at https://brainly.com/question/22399890

#SPJ4

The table below shows some inputs and outputs of function f(x). _1 0 2 4 8 f(a) 1 5 13 21 37 Which statement best describes the function? O f(x) is a linear function because z and f(z) are both increasing. O f(2) is an absolute value function because 2 and f(a) are both increasing. O f(z) is a linear function because f(z) is increasing by 4 for each increase in z by 1.

Answers

A statement which best describes the function include the following: A. f(x) is a linear function because x and f(x) are both increasing.

What is a linear function?

In Mathematics, a linear function can be defined as a type of function whose equation is graphically represented by a straight line on the cartesian coordinate. This ultimately implies that, a linear function has the same slope and it is typically used for uniquely mapping an input variable to an output variable, which both increases simultaneously.

Next, we would determine the slope by using the points contained in the table as follows;

Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (5 - 1)/(0 + 1)

Slope (m) = 4.

Slope (m) = (13 - 5)/(2 - 0)

Slope (m) = 4

Slope (m) = (21 - 13)/(4-2)

Slope (m) = 8/2 = 4.

Read more on slope here: brainly.com/question/23086745

#SPJ1

Solve for x

A. Solve using the change of base formula.
Logby= log y/log b

B. Solve using a different method.

C. verify your solutions by substituting your value back into the original equation.

Answers

A) By using the change of base formula, the solution of the expression is,

⇒ x = - 2/3

B) The solution of the expression is,

⇒ x = - 2/3

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ 5³ˣ⁻² = 125²ˣ

Now, We have the change of base formula,

⇒ [tex]log_{b} y = \frac{log y}{log b}[/tex]

Here, The expression is,

⇒ 5³ˣ⁻² = 125²ˣ

⇒ 5³ˣ⁻² = 5⁶ˣ

Take log on both side,

⇒ log 5³ˣ⁻² = log 5⁶ˣ

⇒ (3x - 2) log 5 = 6x log 5

⇒ 3x - 2 = 6x

⇒ - 2 = 6x - 3x

⇒ 3x = - 2

⇒ x = - 2/3

B) By using another method as;

The expression is,

⇒ 5³ˣ⁻² = 125²ˣ

⇒ 5³ˣ⁻² = 5⁶ˣ

By comparing we get;

⇒ 3x - 2 = 6x

⇒ - 2 = 6x - 3x

⇒ 3x = - 2

⇒ x = - 2/3

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ1

Claire goes to the gym every 4 days and the
park every 6 days. If she does both today,
how many days will pass until the next time
she goes to the gym and park on the same
day?
GCF or LCM? (circle one)

Answers

Required, after 12 days Claire will have the day where she has gone to the gym and the park an equal number of times.

What is the least common multiple (LCM)?

The least common multiple (LCM) of two numbers represents the smallest multiple that is divisible by both numbers.

Here,
In this case, the LCM of 4 and 6 is 12, which is the smallest number that is divisible by both 4 and 6. This means that after 12 days, Claire will have gone to the gym and the park an equal number of times, and will thus be back at the same point. Therefore, the answer is LCM.

Thus, the required, after 12 days Claire will have the day where she has gone to the gym and the park an equal number of times.

Learn more about Least common multiple (LCM) here:
https://brainly.com/question/14617090
#SPJ9

Which display is most likely to reveal association between X and Y ? A. Dot plot B. Scatter plot C. Histogram D. Pareto chart

Answers

Scatter plot Answ

Step-by-step explanation:

If the numerator of a fraction is multiplied by 4 and the denominator is reduced by 2,the result is 4 . If the numerator of the fraction is increased by 15 and 2 subtracted from the double of the denominator, the result is 5/4. Find the fraction.​

Answers

The original fraction described in the question is; 25/31

How to simplify fractions?

Let the numerator be x and let the denominator be y.

We are told that the numerator of a fraction is multiplied by 4 and the denominator is reduced by 2,the result is 4. Thus;

4x/(y - 2) = 4

4x = 4y - 8

4x - 4y = -8   -----(1)

The numerator of the fraction is increased by 15 and 2 subtracted from the double of the denominator, the result is 5/4. Thus;

(x + 15)/(2y - 2) = 5/4

4x + 60 = 10y - 10

4x - 10y = - 70   ----(2)

Subtract eq 2 from eq 1 to get;

6y = 62

y = 31/3

Thus;

4x - 4(31/3) = -8

Multiply through by 3 to get;

12x - 124 = -24

12x = 100

x = 25/3

Thus, the fraction is;

(25/3)/(31/3) = 25/31

Read more about simplifying fractions at; https://brainly.com/question/6109670

#SPJ1

An architect is drawing a floor plan for the basement of a house. He has drawn the
plans as shown. On the plan, 1/4 inch represents 4 feet in length in the house.
What is the area of the basement?

Answers

The area of the basement will be 576 square feet.

What is an area?

The area is defined as the space covered by the object in a two-dimensional plane. The area of the rectangle is calculated by the multiplication of the length and the width.

Given that a basement floor plan for a house is being created by an architect. He drew the plans as they are seen. On the plan, one-fourth of an inch corresponds to four feet in the house.

The area of the basement will be calculated as:-

Area = 12 x 6

Area = 72 square inches

Area = 72 x 8 feet

Area = 576 square feet

To know more about an area follow

https://brainly.com/question/12203483

#SPJ9

1001₂ = ______ (base 6)
A. 13
B. 14
C. 15
D. 21
E. 23

Answers

The binary number will be equal to 14 in base 6

1001₂ = 14 (base 6)

What is a number base?

Base is defined as a set of digits used to represent numbers. There are different number systems which make use of different combinations of digits as the base.

One of the most common which is the binary number system uses only 2 digits, i.e., 0 and 1 to represent numbers, while the Octal number system uses 8 digits, i.e., 0 to 7, to represent numbers.

The most common number system that is in use is the decimal number system that uses the base 10, which includes digits from 0 to 9 for writing numbers.

1001₂ = 1 x 2^3 + 0 x 2^2 + 0 x 2^1 + 1 x 2^0

1001₂ = 1 x 8 + 1 x 1

1001₂ = 8 + 1

1001₂ = 9

Converting 9 into base 6

6 9

6 1 r 3

  0 r 1

From downwards pointing up

9 = 13 (base 6)

Learn more about number bases here: https://brainly.com/question/19460684

#SPJ1

What is -8/9 divided 2/3??

Answers

Answer:

-1.33333333333

Step-by-step explanation:

Answer:

-1 1/3

Step-by-step explanation:

Find the y-Intercept and x-intercept of the line.
5x - 2y = 10

Answers

The x-intercept and the y-intercept of the line 5x - 2y = 10 include the following ordered pairs:

x-intercept = (2, 0).

y-intercept = (0, -5).

What is the x-intercept?

In Mathematics, the x-intercept can be defined as the point at which the graph of a function crosses the x-coordinate (x-axis) and the value of "y" or y-value is equal to zero (0).

What is y-intercept?

In Mathematics, the y-intercept is sometimes referred to as an initial value (base value) and the y-intercept of any graph such as a linear function, generally occur at the point where the value of "x" is equal to zero (x = 0).

In this exercise, we would use an online graphing calculator to plot the linear function in order to determine the x-intercepts and y-intercepts as shown in the image attached below.

Read more on y-intercept here: brainly.com/question/6240745

#SPJ1

Ben has 300 marbles in a bag.
He gives
65 of the marbles to Sofia
80 of the marbles to Paul
35 of the marbles to Lucas
What fraction of his 300 marbles has Ben given away?
Give your fraction in its simplest form.

Answers

Answer:

Ben had given away 3/5 of his fraction.

Step-by-step explanation:

total number of marbles Ben give away,

= 65+80+35

= 180

180/300= 3/5

What are the outliers in this data set?

26, 51, 53, 57, 57, 62, 65, 71, 93

Select EACH correct answer.

Answers

Answer:

What are the outliers in this data set?

26, 51, 53, 57, 57, 62, 65, 71, 93

Select EACH correct answer.

26, 71, 93

Step-by-step explanation:

Tell me if I'm wrong, You're welcome.

The population in a small town is increasing annually by 2.8%. What is the quarterly rate of population increase?

Answers

Answer:

To find the quarterly rate of population increase, we first need to find the annual rate of population increase in decimal form, which is 2.8% expressed as 0.028.

To find the quarterly rate, we need to divide the annual rate by 4, since there are 4 quarters in a year:

0.028 / 4 = 0.007

Therefore, the quarterly rate of population increase is 0.007 or 0.7%

You can work at most 20 hours next week. You need to earn at least $90 to cover
you weekly expenses. Your dog-walking job pays $7.50 per hour and your job as a
car wash attendant pays $6 per hour. Write and graph a system of linear
inequalities to model the situation. Use the graph to list 3 solutions

Answers

The system of inequalities is.

x + y ≤ 20

x*7.5 +  y*6 ≥ 90

And some solutions can be:

(10, 5)

(11, 5)

(12, 6)

How to write the system of inequalities?

Let's define the variables we will be using:

x = number of hours dog-waling

y = number of hours at the car wash.

We know that you can work at most 20 hours, then:

x + y ≥ 20

And you need toearn at least $90, then wecan write:

x*7.5 +  y*6 ≥ 90

The system of inequlities is:

x + y ≤ 20

x*7.5 +  y*6 ≥ 90

And the graph is the one below. The solutions are all the points in the dark blue region, some solutions we can see there are:

(10, 5)

(11, 5)

(12, 6)

Learn more about systems of inequalities:

https://brainly.com/question/9774970

#SPJ1

pls help me on all questions if you can

Answers

All the answers to the questions except which are impossible are illustrated below.

What is a polygon?

A polygon is a closed more than two-sided and can be made up of a finite number of straight line segments and is a type of planar figure in geometry.

Each line of the polygonal circuit's segments are referred to as its edges or sides.

9. We know, The sum of all the interior angles of a 'n' sided polygon is,

= 180(n - 2).

= 180(10 - 2).

= 180×8.

= 1440°.

11. 180(n - 2) = 1260.

180n - 360 = 1260.

180n = 1620.

n = 9.

13. Mesure of exterior angles is,

= 360/n.

= 360/5.

= 72°.

14. 360/60 = 6 sides, As EA = 360/n, n = 360/EA.

learn more about polygons here :

https://brainly.com/question/24464711

#SPJ1

The rectangular floor of a classroom is 22 feet in length and 24 feet in width. A scale drawing of the floor has a length of 11 inches. What is the perimeter, in inches, of the floor in the scale drawing?

Answers

The scale floor's perimeter is 34 inches.

What is meant by perimeter?The overall length of a form's boundary is referred to as the perimeter of that shape. Adding the lengths of all the sides and edges that surround a form yields its perimeter. It is calculated using linear length units such centimeters, meters, inches, and feet. The perimeter is the space surrounding a shape's edge. Get the perimeter of various forms by multiplying their side lengths.The circumference of an object is known as its perimeter. For instance, your home has a yard that is enclosed. The length of the fence is the perimeter. The length of your fence is 200 feet if the yard is 50 feet by 50 feet.

To solve, we can set up fractions:

21/7 = 30/x

Cross multiply and you get:

21x = 210

Divide each side by 21:

x = 10

You can apply the following equation since you're attempting to determine the floor's perimeter:

2w + 2l = p

Substitute to solve:

2 ( width = 10 )

2 ( length = 7 )

2 (7) + 2 (10) = p

14 + 20 = p

34 = p

The complete question is:

The rectangular floor of a classroom is 21 feet in length and 30 feet in width. A scale drawing of the floor has a length of 7 inches. What is the perimeter, in inches, of the floor in the scale drawing?

To learn more about perimeter, refer to:

https://brainly.com/question/19819849

#SPJ1

Please answer both questions in the photo!!! (20p)

Answers

Solution below:

(2.4, 2)

(4, -3.4)

Answer:

(2.4, 2)

(4, -3.4)

Step-by-step explanation:

Brainliest Please

The breadth of a rectangle is half of its length. If its perimeter is 76m,find its length and breadth.​

Answers

The length and breadth of the rectangle are 25.33 meters and 12.67 meters,

What is a rectangle?

A rectangle is a quadrilateral having four sides and the sum of the angles is 180 in the rectangle the opposite two sides are equal and parallel and the two sides are at 90-degree angles.

We are given that the breadth of the rectangle is half of its length, so we can write:

B = 0.5L

We are also given that the perimeter of the rectangle is 76m. The perimeter of a rectangle is the sum of the lengths of all four sides, which in this case is:

Perimeter = 2(L + B)

Substituting the value of B from the first equation, we get:

Perimeter = 2(L + 0.5L)

Perimeter = 2(1.5L)

Perimeter = 3L

Now we can solve for L:

3L = 76

L = 25.33

So the length of the rectangle is 25.33 meters.

To find the breadth, we can substitute this value of L back into the first equation:

B = 0.5L

B = 0.5(25.33)

B = 12.67

So the breadth of the rectangle is 12.67 meters.

Therefore, the length and breadth of the rectangle are 25.33 meters and 12.67 meters, respectively.

To know more about rectangles follow

https://brainly.com/question/30755636

#SPJ9

The measure of an angle is 71.6°. What is the measure of its complementary angle

Answers

Answer:

18.4 degrees

Step-by-step explanation:

a complementary angle is 90 degrees and 90 - 71.6 is 18.4. So, the answer is 18.4 degrees.

-12x3^2+36 please ty

Answers

Answer:

-72

Step-by-step explanation:

Answer:

-72

Step-by-step explanation:

multiply-12 x3^2 and then add 36

Which shape has two pairs of parallel sides

Answers

The shape with two pairs of parallel sides is called a parallelogram.

What is a paralellogram?

A parallelogram is a shape that has four sides, in which the two opposite lengths are:

Parallel to each other.Have the same measure.

As there are four sides, divided two by two, the shape has two pairs of parallel sides, and is called a parallelogram.

More can be learned about parallelograms at https://brainly.com/question/970600

#SPJ1

Shana wants to use all 62 feet of the fencing she has to make a rectangular run for her dog. She decides to make the length of the run 20 feet. She writes and solves the equation 2 l plus 2 w equals 62 to find the width of the run.

Which statements are true of the solution? Check all that apply.

The value of w is 10 feet.
The value of w can be zero.
The value of w cannot be a negative number.
Substitution is used to replace the variable l with a value of 20.
The subtraction property of equality is used to isolate the term with the variable w

Answers

62 = 2 l + 2 w
62 = 2(20) + 2 w
62 = 40 + 2 w
22 = 2 w
11 = w

The value of w CAN be zero if the length was 31

The value of w cannot be negative

Substitution is used to replace the variable l with a value of 20

The subtraction property of equality is used to isolate the term with the variable w when we subtract 40

Answer:

11 feet long

Step-by-step explanation:

20+20=40

62-40=22

22÷2=11

check

11+11+20+20=62

Bisectors of triangles
Find RT

Answers

The length of RT is 13 units

What is Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices.

As T is the centroid of the given triangle.

TN=TP

x+10=4x-17

Now solve for x

27=3x

x=9

Now TP=4(9)-17

TP=36-17

TP=19

Now from pythagoras theorem we find the length of RT

19²=14²+RT²

361-196=RT²

165=RT²

Take square root on both sides

RT=13

Hence, the length of RT is 13 units

To learn more on Triangles click:

https://brainly.com/question/2773823

#SPJ1

Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the face values showing on the dice. (a) How many sample points are possible?
(b) What is the probability of obtaining a value of 7?
(c) What is the probability of obtaining a value of 8 or greater?

Answers

a) There are 36 sample points that are possible.

b) The probability of obtaining a value of 7 is 1/12.

c) The probability of obtaining a value of 8 or greater is 1/6.

(a) When rolling a pair of dice, each die has six possible outcomes: 1, 2, 3, 4, 5, or 6. The possible outcomes for the pair of dice can be represented by the set of all ordered pairs (a, b), where a and b represent the outcomes of the first and second die, respectively.

Since each die has six possible outcomes, there are a total of 6 x 6 = 36 possible outcomes for rolling a pair of dice.

(b) To obtain a sum of 7, we must have one die showing 1 and the other die showing 6, or one die showing 2 and the other die showing 5, or one die showing 3 and the other die showing 4, for a total of three possible outcomes.

Since each die has six possible outcomes, there are a total of 6 x 6 = 36 possible outcomes. Therefore, the probability of obtaining a sum of 7 is 3/36, or 1/12.

(c) We must have one die showing 2 and the other die showing 6, or one die showing 3 and the other die showing 5, or one die showing 4 and the other die showing 4, or one die showing 4 and the other die showing 5, or one die showing 5 and the other die showing 3, or one die showing 6 and the other die showing 2, for a total of 5 + 1 = 6 possible outcomes.

Therefore, the probability of obtaining a sum of 8 or greater is 6/36, or 1/6.

To learn more about probability click on,

https://brainly.com/question/15036514

#SPJ4

How do you solve verifying identity with calculator?

Answers

Verifying Identity with a calculator requires an individual to enter specific numerical values into a calculator and then solve a given equation. This can be used to prove the validity of an equation, or the accuracy of a given answer.

The equation is typically written in algebraic form and includes numerical values.Verifying Identity with a calculator requires an individual to enter specific numerical values into a calculator and then solve a given equation. This can be used to prove the validity of an equation, or the accuracy of a given answer. For example, if an individual is asked to verify the identity [tex]sin^2x + cos^2x[/tex]= 1, they will be given numerical values to plug into the equation. For example, if they are given x = 60, they would enter[tex](sin60)^2 + (cos60)^2[/tex] into the calculator and solve. This should result in an answer of 1, proving the equation is accurate.

Learn more about Identity here:

https://brainly.com/question/30339186

#SPJ4

2. A container holds 5 red pens, 4 purple pens and 3 blue pens. Find the
probability P(red pen, purple pen) without replacement. (use the simplest
fraction)

Answers

The probability P(red pen, purple pen) without replacement is 10/33.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given that a container holds 5 red pens, 4 purple pens and 3 blue pens.

We need to find the probability P(red pen, purple pen) without replacement.

P(red pen, purple pen) = (number of ways to select a red pen and a purple pen) / (total number of ways to select two pens)

Total number of ways to select two pens=¹²C₂=66 ways.

Number of ways to select a red pen and a purple pen = (number of ways to select a red pen) x (number of ways to select a purple pen from the remaining pens)

Number of ways to select a red pen = 5

Number of ways to select a purple pen from the remaining pens = 4

Therefore, the number of ways to select a red pen and a purple pen without replacement is:

Number of ways to select a red pen and a purple pen = 5 x 4 = 20

P(red pen, purple pen) =20/66

=10/33

Hence, the probability P(red pen, purple pen) without replacement is 10/33.

To learn more on probability click:

https://brainly.com/question/11234923

#SPJ9

Other Questions
I need some help please Americans are more likely than the French or British to believe that everyone should be equal politically and less likely to think that it is important that everyone be equal economically. What do these differing views reflect?a. Differences in the countries' geographiesb. Differences in the countries' political culturesc. Differences in the countries' constitutionsd. Differences in the countries' demographic trends (IF YOU DONT KNOW THE ANSWER DONT POST SOMETHING RANDOM) During the Industrial Revolution, the production of goods changed from cottage industries to a factory system.Determine whether each characteristic reflects an aspect of cottage industries or the factory system.Select the correct answer in each row. lines as you need to collect the stars week 25 wednesday english bellringer what is 8 in spanish? five friends equally shared 2 bottles of juice. Each bottle contains 1/3 liters of juice. What fraction of a bottle did each of them drink? What is the molar mass of the potassium permanganate? True or false statement, a company exhibiting a high liquidity ratio is likely to have enough resources to pay off its short-term obligations. What is your opinion on toxic fandoms (K-pop)? which of the following characteristic is associated with proactively engaging role expectations, and often contributing beyond what a role formally requires (e.g., acting creatively)? What is the ICD-10 for benign ovarian cyst? TRUE OR FALSE The step-motor valve uses a small motor to control the valve's port, which in turn controls evaporator superheat. Find the circumference of this circle using 3 for . Classify the following adjusting entries as involving prepaid expenses (PE), unearned revenues (UR), accrued expenses (AE), or accrued revenues (AR).a. to record revenue earned that was previously received as a cash advance.b. to record annual depreciation expense.c. to record wages expense incurred but not yet paid (nor recorded).d. to record revenue earned but not yet billed.e. to record expiration of paid insurance. Felix is making a pattern with tiles shaped like parallelograms. He needs 5 black tiles and 5 white tiles. The tiles cost $0.50 per cm. What is the total area of the tiles Felix needs to buy? A = ? cm 27 2.4 cm 2 cm 4 cm. How much would the tile pattern cost? What is the author overall tone towards Jack the Ripper in the news article? did the original mayflower sink? How do you write an effective policy memo? The world flow of foreign direct investment between 1990 and 2017 increased 600 percent. If a company decides to establish a new operation in a foreign country, that company has engaged in a). greenfield investment b.) an acquisition c.) a franchise arrangementd.) a mergere.) a censing arrangement