A, B and C are the vertices of a triangle.
A has coordinates (1,4)
B has coordinates (3, 0)
C has coordinates (-3,-2)
D is the midpoint of AB.
E is the midpoint of AC.
Prove that DE is parallel to BC.
You must show each stage of your working.

PLEASE HELP ASAP THANK YOU

A, B And C Are The Vertices Of A Triangle.A Has Coordinates (1,4)B Has Coordinates (3, 0)C Has Coordinates

Answers

Answer 1

Answer:

see below

Step-by-step explanation:

To find the coordinates of the midpoints, add the x's and divide by 2 and add the y's and divide by 2.

The coordinates of D, the midpoint of AB, (1+3)/2 will be the x-coordinate and (4+0)/2 will be the y-coordinate.

D (2,2)

You could also see this on a graph, see image.

E, the midpoint of AC has the x-coordinate (1+-3)/2, which is -1 and y-coordinate (4+-2)/2 which is 1.

E is (-1,1)

Then we are able to calculate the slope of DE and BC.

To calculate slope, subtract the y's and put that on top of a fraction and subtract x's and put that on the bottom of a fraction. If the slopes are the same the segment are parallel.

Slope of DE:

(2-1)/(2--1)

= 1/3

Slope of BC:

(0--2)/(3--3)

=2/6

=1/3

The slopes of BC and DE are equal, so the segments are parallel.

(Alternatively, you could show that Triangle ABC and Triangle ADE are similar. Then find the segments parallel because corresponding angles are congruent.)

A, B And C Are The Vertices Of A Triangle.A Has Coordinates (1,4)B Has Coordinates (3, 0)C Has Coordinates

Related Questions

Find the value of k for which the point (3k,k) lies on the line y = 3x +8.​

Answers

Step-by-step explanation:

please mark me as brainlest

Complete the table by converting from a fraction, a decimal, or a percent.

Answers

The value obtained by doing the operation are ,a=0.11,b=11,c=(111/250)d=44,e=(1/8),f=(83/500),h=0.375,i=37.5%,j=(111/125),k=0.888,i=(777/1000),m=77%,n=0.2,o=20%,p=(777/1000),q=66.6%.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A fraction of 100 can be used to express the ratio.

The procedure of changing the basis of a number is known as number conversion. A binary number is made up of only two numbers: 1 and 0. A decimal number is made up of ten digits ranging from 0 to 9.

The values obtained from the table the decimal and the percentage form are solved as;

[tex]\frac{1}{9} \\\\ 0.3111 \\\\\ 0.1111 \times 100 \\\\ 11.11 \%[/tex]

The other missing values are;

a=0.11

b=11

c=(111/250)

d=44

e=(1/8)

f=(83/500)

h=0.375

i=37.5%

j=(111/125)

k=0.888

i=(777/1000)

m=77%

n=0.2

o=20%

p=(777/1000)

q=66.6%

Hence all the missing values are given above.

To learn more about percentages, refer to:

https://brainly.com/question/13450942

#SPJ1

A rectangular swimming pool measures 40 meters in length and 30 meters in width. in the scale drawing of the pool, 1 centimeter represents 2 meters

Answers

The area of the swimming pool on the scale drawing will be 300 sq. centimeters.

What is the scale ratio?

A model's scale ratio is the proportionate ratio of a linear dimension of the model to the equivalent characteristic of the original.

For the given scale drawing 1 centimeter represents 2 meters, therefore, the length of 40 meters in one scale drawing will be equal to,

40 meters = 40/2 centimeters = 20 centimeters

The width of 30 meters one scale drawing will be equal to,

30 meters = 30/2 centimeters = 15 centimeters

Now, the area of the swimming pool on the scale drawing will be,

Area= 20 centimeters × 15 centimeters = 300 sq. centimeters

Hence, the area of the swimming pool on the scale drawing will be 300 sq. centimeters.

The complete question is:

A rectangular swimming pool measures 40 meters in length and 30 meters in width. in the scale drawing of the pool, 1 centimeter represents 2 meters. then what is the area of the swimming pool on the scale drawing?

Learn more about Scale ratio:

https://brainly.com/question/13770371

#SPJ1

The second number in an ordered pair that represents the position of a point relative to the vertical axis is called ______________.

Answers

It is called the y-coordinate

The point itself is called a coordinate, vertically, the vertical component of the coordinate is called the y-coordinate, while horizontally, the horizontal component of the coordinate is called the x-coordinate.

Hope that helps!

#LearnwithBrainly

Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. The coordinates of point M are (2, 4), and the coordinates of point N are (3, 5).
The slope of is

Answers

The coordinates of point N are (3, 5).2 the answer is 2/1 but just write 2.

We have given that,

Polygon MNOPQ is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′.

What is the coordinate?

A coordinate system is a system that uses one or more numbers, or coordinates, to uniquely determine the position of the points or other geometric elements on a manifold such as Euclidean space.

The coordinates of point M are (2, 4), and the coordinates of point N are (3, 5)

Therefore we get,

2 the answer is 2/1 but just write 2.

To learn more about the co-ordinate visit:

brainly.com/question/17206319

#SPJ1

The width of a certain rectangle is 2 m greater than half its length. Four times its length is 26 m greater than its perimeter. What are the dimensions of the rectangle?

Answers

Answer:

Length = 30

Width = 17

Step-by-step explanation:

Let L = length of rectangle and W = Width

The first sentence gives the equation

W = L/2 + 2 ==>

2W = L +4 ==>

L = 2W - 4 ....  (1)

The perimeter of the rectangle is 2(L+W) = 2L +2W

Second sentence gives us the equation

4L = 2L + 2W + 26 ===>
2L = 2W + 26 ......   (2)

(2) - (1) ==> L = 30   (2W cancels out)

From (1), W = 30/2 + 2 = 15 + 2 = 17

Check:
Using these values and substituting in equation 2 gives us
2 * 30 = 2* 17 + 26
60 = 34 + 26
which matches

Plot the foci of the hyperbola represented by the equation x^2/625 − y^2/3600 =1 100pts

Answers

The attached image represents the foci of the hyperbola

How to determine the foci?

The equation of the hyperbola is given as:

[tex]\frac{x^2}{625} - \frac{y^2}{3600} = 1[/tex]

Rewrite as:

[tex]\frac{x^2}{25^2} - \frac{y^2}{60^2} = 1[/tex]

A hyperbola is represented as:

[tex]\frac{(x - h)^2}{b^2} - \frac{(y - k)^2}{a^2} = 1[/tex]

This means that:

h = 0

k = 0

b = 25

a = 60

Next, calculate c the distance from the center to the focus using:

[tex]c = \sqrt{a^2 -b^2}[/tex]

This gives

[tex]c = \sqrt{60^2 -25^2}[/tex]

Evaluate

[tex]c = \pm \sqrt{2975}[/tex]

This means that:

Foci = (0, -√2975) and (0, √2975)

See attachment for the hyperbola and the foci

Read more about hyperbola at:

https://brainly.com/question/16735067

#SPJ1

Which is equivalent to
64 ^1/4?

O 24/4
O4
O 16
O 16/4

Answers

Answer: [tex]\sqrt[4]{64}[/tex]

Step-by-step explanation:

[tex]64^{\frac{1}{4} }= \sqrt[4]{64}[/tex]

Find the value of x.
5
X
11
y

Answers

The value of the variable is 4√5. Then the correct option is C.

What is the triangle?

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The similar triangles are shown in the diagram.

16 / x = x / 5

    x² = 16 × 5

      x = 4 √5

Then the value of the variable is 4√5.

Then the correct option is C.

More about the triangle link is given below.

https://brainly.com/question/25813512

#SPJ1

Its about creating and Solving Linear Equations by writing linear equations from geometric figures please help

Answers

1. The value of x is 40

m ∠2x + 10 = 90

m ∠3x = 120

m ∠2x +5 = 85

m ∠2x -15 = 65

2. The value of x is 15

m ∠5x = 75

Calculating angles

From the question, we are to determine the value of x and the given angles

Since sum of angles is 360°

3x + 2x + 10 + 2x + 5 + 2x -15 = 360°

Collect like terms

3x + 2x + 2x + 2x  = 360° - 10° - 5° + 15°

9x = 360

x = 360 / 9

x = 40

∴ x = 40

Then,

m ∠2x + 10 = 2(40) + 10

m ∠2x + 10 = 80 + 10

m ∠2x + 10 = 90

m ∠3x = 3(40)

m ∠3x = 120

m ∠2x +5 = 2(40) + 5

m ∠2x +5 = 80 + 5

m ∠2x +5 = 85

m ∠2x -15 = 2(40) - 15

m ∠2x -15 = 80 - 15

m ∠2x -15 = 65

Hence, the measure of angle 2x-15 is 65

2.

Since sum of angles is 180°

Then,

5x° + x° + 90° = 180°

6x° = 180° - 90°

6x° = 90°

x = 90/6

x = 15

m ∠5x = 5(15)

m ∠5x = 75

Hence, the measure of angle 5x is 75

Learn more on Calculating angles here: https://brainly.com/question/15820650

#SPJ1

What is the denominator of the simplified expression? (startfraction 2 n over 6 n 4 endfraction) (startfraction 3 n 2 over 3 n minus 2 endfraction)

Answers

The denominator of the simplified expression will be (9n² + 4).

What is a fraction number?

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

The expression is given below.

[(2 / 6n + 4)] [(3n + 2) / (3n – 2)]

On multiplication, we have

(6n + 4) / (18n² + 8)

(3n + 2) / (9n² + 4)

The denominator of the simplified expression will be (9n² + 4).

More about the fraction number link is given below.

https://brainly.com/question/78672

#SPJ1

como faltar a la escuela​

Answers

Answer:

Como faltar a la escuela. Por favor, ¿cuál es el significado?

An unknown number b is 10 more than an unknown number k. The number b is also k less than 8. The equations to find k and b are shown below
b=k+10
b=-k+8
Which is a correct step to find k and b?
O Write the points where the graphs of the equations intersect the x-axis.
O Write the points where the graphs of the equations intersect the y-axis.
O Add the equations to eliminate k
O Multiply the equations to eliminate b.

Answers

Answer: Add the equations to eliminate k

Step-by-step explanation:

Adding the equations together, we get 2b=18.

For 1-3, consider an investment of $6000
that earns 4.5% interest. Use a graphing
calculator if needed.
1. Write an equation to describe the value
V(t) of the investment at time t if the
interest is compounded daily.

Answers

Answer:

See below

Step-by-step explanation:

Period = 1 day      

Periodic interest = .045 / 365       (since there are 365 days in a year)

V(t) = 6000 *  ( 1 + .045/365)^t      where t is in days

V(t) = 6000 * (1+.045/365)^(t * 365)       where t is in years

please help mee, sketch the graph please (50 points will give brainliest!!!)

Answers

Values are given below as pairs (x,y) where x coordinate is x values in box and y coordinate is y values on box

(-5,9)(-4,4)(-2,0)(0,4)(1,9)

Graph attached

(x+2)^2-3 evaluate and simplify the equation

Answers

Answer:

[tex](x^{2} +2)-3\\x^{2} +2-3\\x^{2} -1\\(x+1)(x-1)[/tex]

Answer:

x^2+4x+1

Step-by-step explanation:

(x+2)^2-3

(x+2)(x+2)-3

x^2+2x+2x+4-3

x^2+4x+4-3

x^2+4x+1

What is 5 + 10^5 or what is 5 + 10 to the 5th power?

Answers

Answer:

5 + 10^5 = 100005 (I think its this one you are looking for

(5 + 10)^5 = 759275

Step-by-step explanation:

Answer:

100,005

Step-by-step explanation:
Original: 10 * 1 = 10

First, you need to do 10 * 10 which = 100.
Next, you need to do 100 * 10 which = 1,000.
Next, you need to do 1000 * 10 which = 10,000.
Next, you need to do 10000 * 100 which = 100,000.
Lastly, you need to add 5 to 100,000 and you get 100,005.


I Hope This Helped :D

If the unit rate is 30 miles per hour, then how much miles is traveled in 9 hours?

Answers

270 because it’s 30 miles per each HOUR and there’s 9 so do 30 times 9!

Please help me I am stuck

Answers

so the answer to one is simply 132, because all you have to do it replace t with 0.5, and then evaluate.

the answer to the first part of second question is -64/32 or -2 because all you have to do is find the vertex, which is the point of maximum height. the formula for this -b/2a.
the answer to the second part is 160 because to find the height at the vertex just plug the x coordinate of the vertex in and evaluate. this will give you the maximum height

The quotient of (x⁴+ 5x³ 3x - 15) and (x³ - 3) is a polynomial. What is the quotient?
a.x⁷+5x⁶-30x³9x+45
b.x-5
c.x+5
d x⁷+5x⁶+6x⁴+30x³+9x+45​

Answers

Answer:

x+5 (under assumption you meant to do -3x

Step-by-step explanation:

you can use long division.

Take the leading coefficient x^4 and divide it by x^3. This results in x which is going to be the first part of you quotient. Now take that x and multiply it by the divisor (x^3 - 3). This gives you x(x^3 - 3) = x^4 - 3x. Now subtract that x^4 - 3x from the original polynomial and repeat this until you can't divide anymore

[tex]x^4+5x^3-3x-15 - (x^4-3x) = 5x^3-15\\x^3/5x^3=5\\5(x^3-3) = 5x^3-15\\5x^3-15-(5x^3-15) = 0\\\\x+5[/tex]

the answer choices is A. x B. z C. w D.y pls help me, I greatly appreciate all the help I'm getting

Answers

The graphed that represents the new function with the same slope and y-intercept is: graph Y.

What is the Slope and Y-intercept of a Function?

Slope = rise/run along a line.

Y-intercept is the y-value of the point on the y-axis that the line intercepts.

Slope of the function given = rise/run = 2/1 = 2

2 multiplied by 1/2 = 2/2 = 1.

Y-intercept of the given function is: 1

1 increased by 3 units is: 1 + 3 = 4

The slope of graph Y = rise/run = 2/2/ = 1

The y-intercept is also 4

Therefore, the answer is: Graph Y

Learn more about the slope and y-intercept on:

https://brainly.com/question/25722412

#SPJ1

answer help me me me me

Answers

Answer:

409

Step-by-step explanation:

296 = 200 + 90 + 6
The value of the 9 is 90 in 296.
1/10 of 90 is 9. The only number that has a 9 in the units digit is 409.

please help me ill give 10 points

Answers

Answer:

y=160

Step-by-step explanation:

y=90+14(x)

x=5

y=90+14(5)

y=90+70

y=160

Hope this helps!

If not, I am sorry.


Mark ran a mean distance of 13.2 km in five days. The next day, Mark ran 20 km.
Find the mean distance Mark ran in the six days.

Answers

Answer:

14.3 km  (1 d.p.)

Step-by-step explanation:

To find the mean, divide the sum of all data values by the total number of data values.

If Mark ran a mean distance of 13.2 km in five days, we can use the mean distance for each of the 5 days in our calculation.

[tex]\begin{aligned}\implies \sf mean\:distance & = \sf \dfrac{13.2+13.2+13.2+13.2+13.2+20}{6}\\ & \sf =\dfrac{86}{6}\\\\ & = \sf 14.3\:km\:\:(1\:d.p.)\end{aligned}[/tex]

Students in a reading class have three options for their book project: making a brochure, writing a news article, or designing a computer presentation. from past years, the teacher has determined that 20% of students usually choose to make a brochure, 30% of students usually choose to write a news article, and the remaining students usually choose to design a computer presentation. if the teacher uses 20 colored chips in three different colors to model this situation, how many colored chips should she use to represent each book project option? making a brochure: blue chips writing a news article: yellow ships designing a computer presentation: red chips

Answers

Answer: 4 blue chips (brochure), 6 yellow chips (news article), and 10 red chips (computer presentation).

Step-by-step explanation: If you have 20 colored chips, then 20% of the people that chose the brochure will be 20% of 20 of the chips. That is 20 * 0.2 = 4. Now, to find how to model the people who chose the news article, it will be 30% of the 20 chips. That is 20 * 0.3 = 6. Thus, 6 chips can be modeled for the news articles. Lastly, we add 6 + 4 and that is 10. The rest is another ten out of the 20. Thus, we can use 10 red chips to model the computer presentation.

The teacher should use 4 blue chips for the making a brochure option, 6 yellow chips for the writing a news article option, and 10 red chips for the designing a computer presentation option.

What is Division?

A division is a process of splitting a specific amount into equal parts.

To model this situation using colored chips, we can use the following approach:

Divide the total number of chips (20) into five equal parts, each representing 20% of the total number of students.

For the making a brochure option, use four blue chips to represent the 20% of students who choose this option.

For the writing a news article option, use six yellow chips to represent the 30% of students who choose this option.

For the designing a computer presentation option, use ten red chips to represent the remaining 50% of students who choose this option.

So, the teacher should use 4 blue chips for the making a brochure option, 6 yellow chips for the writing a news article option, and 10 red chips for the designing a computer presentation option.

Hence,  the teacher should use 4 blue chips for the making a brochure option, 6 yellow chips for the writing a news article option, and 10 red chips for the designing a computer presentation option.

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ5

help me in math pls if u know rn i for got the next step​

Answers

Answer:

I'm not sure what the question is.    I'll offer one simplification that might help.

Step-by-step explanation:

[tex]\sqrt{3} - 3(4*\sqrt{8})[/tex]

One can convert the [tex]\sqrt{8}[/tex] to [tex]\sqrt{2} *\sqrt{4}[/tex] and then that becomes [tex]\sqrt{2} *\2}[/tex]2 or 2[tex]\sqrt{2}[/tex]

[tex]\sqrt{3} - 3(4*\sqrt{2}\sqrt{4})\\[/tex]

[tex]\sqrt{3} - 3(4*2*\sqrt{2})\\[/tex]  See above explanation.

[tex]\sqrt{3} - 24*\sqrt{2})\\[/tex]

1 Select the correct answer from the drop-down menu. sinr O tant = cost. Therefore, tan(90-A) = COST. 1/tan(90-A) 1/sin A 1/cos(90 - A) 1/tan A . (All angle measurements are in degrees.) Reset Next 1 Select the correct answer from the drop - down menu . sinr O tant = cost . Therefore , tan ( 90 - A ) = COST . 1 / tan ( 90 - A ) 1 / sin A 1 / cos ( 90 - A ) 1 / tan A . ( All angle measurements are in degrees . ) ​

Answers

[tex]\tan(90^{\circ}-A)\\ \\ =\frac{\sin(90^{\circ}-A)}{\cos(90^{\circ}-A)}\\ \\ =\frac{\cos A}{\sin A}\\\\=\boxed{\frac{1}{\tan A}}[/tex]

which of the following sets are discrete?!? check all that apply. ​

Answers

which of the following sets are discrete?

Answer: C. {2,4,6,8}

Step-by-step explanation:

because constituting a separate entity : individually distinct several discrete sections. 2a : consisting of distinct or unconnected elements : noncontinuous. b : taking on or having a finite or countably infinite number of values discrete probabilities a discrete random variable.

in the adjoining figure prove that<A+<B+<C+<D+<E is equal 180​

Answers

It has been proved that the 5 star vertices have their sum of angles as A + B + C + D + E = 180°

How to find the sum of angles of a polygon?

The adjoining star contains a regular pentagon. Thus;

Sum of interior angles of the pentagon = (5 - 2) * 180 = 540°

Thus;

Each interior angle of the pentagon = 540/5 = 108°

Thus, each exterior angle = 180 - 108 = 72°

Then measure of the angle at the vertex = 180 - 72 - 72 = 36°

Thus, each angle at the vertices of the star have an angle of 36°.

There are 5 star vertices and so;

Sum of angles of 5 star vertices = 5 * 36 = 180°

Read more about Angles in a Polygon at; https://brainly.com/question/1592456

#SPJ1

Let f(x)=4x and g(x)=4x+1−2. Which transformations are needed to transform the graph of f(x) to the graph of g(x)? Use the drop-down menus to complete the statements.

Answers

horizontal transformation 1 unit left.

vertical translation 2 units down.

What is graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

Given:

f(x) = [tex]4^{x}[/tex]

g(x) = [tex]4^{x+1} -2[/tex]

As, we can see that g(x) is shifted left side by 1 unit

So, horizontal transformation 1 unit left.

Now, as 2 is subtracted

So, vertical translation 2 units down.

Learn more about this concept here:

https://brainly.com/question/10269163

#SPJ1

Other Questions
write about dilemma you faced in english i hope it be short in five sentences , 60 words or close from it Select The correct answer.Segment AB Is tangent to the circle at point B. Which equation describes the relationship between the tangent and secant line segments?BDOA(AD) = (AC) (AB)OB. (AB)2 = (AC)(CD)OC. (AB)2 = (AC)(AD)OD. AB=(AC + AD) BaCl2(aq)+Na2SO4(aq)BaSO4(s)+2NaCl(aq)Using the balanced chemical equation, determine how many moles of NaCl will be produced, if 0.731 mol of BaCl2 is allowed to react with an excess of Na2SO4. What are the zeros of this function? Identify the antonym:John faced much adversity during his long life.A. Hardship B. Misfortune C. Trouble D. Good luck How does the intracellular fluid compartment differ from the extracellular fluid compartment?. What methods show the property sheet? Check all that apply. Work out (6 10) (3 105)Give your answer in standard form. analyse how the reduction in size and the profitability of computer have influence their usage How should Pierre revise the topics of his supportingparagraphs so they are more effective?He should place body paragraph 1 after bodyparagraph 3 because it relates to the conclusion.He should change the focus of body paragraph 1so it supports his main topic.He should remove body paragraph 2 because itemphasizes unimportant information.He should move body paragraph 3 to hisintroduction so it hooks his audience. Arrange these elements into a table showing metals and non-metals: phosphorus, P, barium, Ba, vanadium, V. mercury, Hg, krypton, Kr, potassium, K, and uranium, U. The monarch is a kind of butterfly that migrates. Which of the following is true of the doctrine of res judicata? Group of answer choices It prevents a person from being tried twice even if the same crime violates both federal and state laws. It states that a federal and state governmental prosecutor cannot cooperate for one conviction. It bars subsequent civil actions involving the same parties, claims, demands or causes of action in civil law cases. It bars a person from being tried twice for the same offense under criminal and civil law. It states that if the factual evidence is the same, an individual can be tried twice under different sections of law. Read this excerpt from Kinnell's poem "Vapor Trail Reflected in the Frog Pond":And I hear,coming over the hills, America singing,her varied carols I hear:crack of deputies' rifles practicing their aim on stray dogsat night,sput of cattleprod,TV going on about the smells of the human body,curses of the soldier as he poisons, burns, grinds, andstabsthe rice of the world,with open mouth, crying strong, hysterical curses.What is this part of the poem about?A. America's involvement in the warB. Tadpoles who may never grow into frogsC. The rice paddies that soldiers trudge throughD. The casualties in Vietnam Which statements are true? Select three options O The line x = O is perpendicular to the line y = -3 O All lines that are parallel to the y-axis are vertical lines. O All lines that are perpendicular to the x-axis have a slope of O. O The equation of the line parallel to the x-axis that passes through the point (2, -6) is x = 2. O The equation of the line perpendicular to the y-axis that passes through the point (-5, 1) is y = 1 Select the correct answer.Colton has trouble remembering information for his tests because he crams the night before. Which would be the best study habit for Colton to commit to?A. studying a little every dayB. studying right before his testsC. studying in the evenings before bedD. studying only on Saturdays what is the square root of 36/19636/169 Suppose a firm is allowed to operate as a monopoly due to the presence of large economies of scale. Social welfare can potentially gain if Multiple choice question. price is regulated at the socially efficient level. profits are regulated at the socially efficient level. the HHI exceeds 1,800. profits are forced to be negative Where does billy bob johns A 13 -ft ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft from the house, the base is moving away at the rate of 15 ft/sec.a. What is the rate of change of the height of the top of the ladder?b. At what rate is the area of the triangle formed by the ladder, wall, and ground changing then?c. At what rate is the angle between the ladder and the ground changing then?