How many congruent triangles do the midsegments of an equilateral triangle partition the triangle into? Explain.

Answers

Answer 1

Answer:

4

Step-by-step explanation:

Let us consider an equilateral triangle ABC. Now, we will define midsegments:

A midsegment of a triangle is a segment that connects the midpoints of two sides of a triangle (here triangle ABC). This segment has two special properties. It is always parallel to the third side, and the length of the midsegment is half the length of the third side.

Refer the attached image:

Now, from the definition of midsegment we can see that:

[tex]PQ=\frac{1}{2}BC[/tex]

[tex]\therefore PQ=BR[/tex]

and PQ is also parallel to BR.

Now, again from the definition of midsegment we can see that:

[tex]QR=\frac{1}{2}AB[/tex]

[tex]\therefore QR=PB[/tex]

and QR is parallel to PB.

therefore, PQBR forms a parallelogram

And a diagonal of a parallelogram divides it into two congruent triangles.

Hence, triangle 2 (triangle PBR) is congruent to triangle 4(triangle PQR).

Similarly, triangle 3 (triangle QRC) and triangle 1 (triangle APQ) are congruent to triangle 4 (triangle PQR), Therefore, there are 4 congruent triangles formed when midsegments of an equilateral triangle partition the triangle.


How Many Congruent Triangles Do The Midsegments Of An Equilateral Triangle Partition The Triangle Into?
Answer 2

The midsegments of an equilateral triangle partition it into four smaller congruent triangles, due to the Triangle Midsegment Theorem and the Third theorem of congruence for triangles.

When the midsegments of an equilateral triangle are drawn, they connect the midpoints of the sides of the triangle. These segments will each be parallel to one side of the triangle and half its length, according to the Triangle Midsegment Theorem. Drawing all three midsegments partitions the equilateral triangle into four congruent smaller triangles. Each smaller triangle will be similar to the original equilateral triangle.

By the Third theorem of congruence for triangles (which is often referred to as SSS or side-side-side), if three sides of one triangle are congruent respectively to the corresponding sides of another triangle, the two triangles are congruent. In this case, each smaller triangle formed by the midsegments shares a side with the original triangle and has the other two sides equal in length to the midsegments, which are congruent to each other by construction.

Therefore, all four smaller triangles are congruent to each other.


Related Questions

You invest $2000 in an account at 4.5% per year simple interest. How much will you have in the account at the beginning of the 8th year? Round your answer to the nearest whole dollar. A. $2560 B. $2640 C. $2720 D. $2630

Answers

Problem

You deposit $2000 into a bank account paying 4.5% simple interest per year. You left the money in for 8 years. How much interest do you get at the end of those 8 years?

Result

The interest is $720.

Then you add the money you invested to your interest so your answer would be  ' C ',

I think I'm not that great with math but I really hope I helped you .

Answer:

D. $2630

Step-by-step explanation:

Given,

The principal amount, P = $ 2000,

Annual rate of interest, r = 4.5 % ,

Thus, the interest for 7 years,

[tex]I=\frac{P\times r\times 7}{100}[/tex]

[tex]=\frac{2000\times 4.5\times 7}{100}[/tex]

[tex]=\frac{63000}{100}[/tex]

[tex]=630[/tex]

Hence, the amount after 7 years or at the beginning of the 8th year is,

[tex]A=P+I=2000+630=\$ 2630[/tex]

Option 'D' is correct.

PLEASE ANSWER FAST WILL MAKE BRAINLIST...

1.David has a collection of computer games. Last year, he had 400 CDs in his collection and this year he has 125% as many CDs as he had last year. How many CDs does he have now?
Select one:
a. 400
b. 500
c. 425
d. 450

2.David has a collection of computer games. Last year, he had 400 CDs in his collection and this year he has 120% as many CDs as he had last year. What is the size of his CD collection this year?
Select one:
a. 480 CDs
b. 500 CDs
c. 400 CDs
d. 440 CDs

3.Eric used to practice football for 60 minutes every day. Now, he practices for 150% as many minutes as he used to. How many minutes does he currently practice every day?
Select one:
a. 110
b. 180
c. 90
d. 200

4.Eric used to practice football for 90 minutes every day. Now, he practices 200% as many minutes as he used to. How many minutes does he currently practice every day?
Select one:
a. 180
b. 90
c. 200
d. 100


Jane drives at a constant rate of 45 miles per hour for 4 hours. How far will she have traveled in that time?
Select one:
a. 110 miles
b. 220 miles
c. 180 miles
d. 160 miles

Answers

The first questions answer is 50.

The second questions answer is 480

The third is 90

The fourth answer is 180

Lastly the last answer is 180 again

Why is David playing games from a cd. Anyways, The answers to the second one is 480. I just so happen to be on the same question.

after 3/4 of a minute a sloth has moved just 3/8 of a foot. what is the sliths speed in feet per minute?

Answers

This is a tricky question but my best guess is .5 or 1/2 a foot per minute. I divided 3-8 as a decimal and added one/4th part to it to be a full minute.

write the equation of the line with y-intercept 3 and a slope of -2/3, and graph it

Answers

Answer:

Equation is [tex]y=\frac{-2}{3} x+3[/tex].

Graph is attached.

Step-by-step explanation:

General format of a linear equation is given as,

y=mx+c

where,

y is the dependent variable.

m is the slope/ gradient

x is the independent variable

c is the y-intercept

By substituting values to the above general equation format we get;

[tex]y=\frac{-2}{3} x+3[/tex].

Graph is attached.

Greg added 3 hundreds plus 2 tens and got 32. What did he do wrong?

Answers

300 (3 hundreds)+20 (2 tens) should equal 320. Greg confused the hundreds place with the tens place and the tens place with the ones place, what he thought was : 3 tens plus 2 ones equals 32. Answer: He got hundreds confused with tens, and tens confused with ones.

300 (3 hundreds)+20 (2 tens) should equal 320. Greg confused the hundreds place with the tens place and the tens place with the ones place, what he thought was : 3 tens plus 2 ones equals 32. Answer: He got hundreds confused with tens, and tens confused with ones.

What is the volume of a cube if it is 25cm long 6cm wide and 4cm high

Answers

if you multiply 25×6×4 you should get 600.


hope this helps!

the answer is a, 600

Lisa is standing on the dock besides a leak she drops the rock from her hands into the lake after the rock hits the surface of the lake the rocks distance from the lake surface changes at a rate of -2 in./s if we still hold her hand 4 feet above the lake surface how far from Lisa‘s hand is the rock for seconds after he hits the surface

Answers

The distance to the lake surface from Lisa's hand is 48 inches. The distance to the rock is increasing at the rate of 2 inches per second.

The distance (y) from Lisa's hand to the rock at time t (seconds) is ...

... y = 48 +2t

What is the square root of this problem?—-

Answers

Answer

The answer to this question is 0.9

Explanation

We know that

sequre of 9 is equal to 81  as [tex]9^2 = 81[/tex]

Then sequre of 0.9 will be

[tex]0.9^2 = 0.81[/tex]

So,

b = [tex]\sqrt{ 0.81}[/tex]

b = [tex]\sqrt{ 0.9^2}[/tex]

Exponent and square root cancel out each other

So, the answer is 0.9.


The sum of a number and two thirds the number is the same as four less than twice the number what is the number

Answers

x + (2/3)x = 2x-4

(2/3)x = x-4

2x = 3x-12

0= x-12

12 = x

solve y=x^2+23 for x

Answers

For this case we must clear x from the given equation:

[tex]y = x ^ 2 + 23[/tex]

We passed 23 subtracting the other side of equality:

[tex]y-23 = x ^ 2[/tex]

By definition, [tex]a ^ 2 = b[/tex]is written as [tex]a = +/-\sqrt{b}[/tex]

So, we have:

[tex]x = + / -\sqrt{(y-23)[/tex]

So, the solution of [tex]y = x ^ 2 + 23[/tex] for x is:

[tex]x = + / -\sqrt{(y-23)[/tex]

Answer:

[tex]x = + / -\sqrt{(y-23)[/tex]

[tex]x1=+\sqrt{(y-23)[/tex]

[tex]x2=-\sqrt{(y-23)[/tex]


Answer:

x = +/- (square root) y-23

Step-by-step explanation:

A P E X

how do i graph 10x + 2y > 20

Answers

10x + 2y > 20

Solution

Step 1: First we have to rewrite the given equation y in terms of x.

Subtract 10 x from both sides, we get

10x - 10x + 2y > -10x + 20

2y > -10x + 20

Divide both sides by 2, we get

y > -5x + 10

Step 2: Now we have to find the coordinates by plugging in the values of for x = -1, 0, 1

and  find the corresponding values for y.

Plug in x = -1,

y = -5(-1) + 10 = 5 + 10 = 15.

The coordinates are (-1, 15)

Plug in x = 0, we get

y = -5(0) +10 = 10

The coordinates are (0, 10)

Plug in x = 1, we get

y = -5(1) + 10 = -5 +10 = 5

The coordinates are (1, 5)

Step 3: Now plot the points on a grid and draw the draw the dotted line because it is greater than. Since it is grater than we have to shaded the region above the line.

Note: Attached the graph. Please have a look at it.

Thank you. :)

Annie and Lily share some money in the ratio 4:3 what fraction of the money does lily get?

Answers

lily get 3 /(4+3)

she get 3/7

Final answer:

Lily receives 3/7 of the total money when it is shared in a 4:3 ratio with Annie.

Explanation:

If Annie and Lily share some money in the ratio of 4:3, we can use this ratio to determine what fraction of the money Lily gets. The total parts of the ratio are 4 (for Annie) plus 3 (for Lily), which equals 7 parts in total.

Lily's share is 3 parts of the total 7 parts. So, Lily receives 3/7 of the total money. This fraction represents Lily's portion when the money is divided according to the given ratio.

Help ASAP please!!!
First answer and correct answer gets the brain...

Answers

3/4x + 3 = 5/6

(3/4 * 12)x + 3 = (5/6 * 12)

9x + 3 = 10

You have to find the lowest common denominator (LCD) by finding the number that you can multiply into every fraction to turn them into a whole number.



2.93 is greater than or less than 0.293

Answers

2.93 is greater than 0.293. Greater than means it has a higher value. 2.93 is ten times as much as 0.293. It has a higher value, therefore being greater than.

Which of the following statements is correct?

• 15 > 700

• 15 = 700

• 15 < 700

• 700 = 700

Answers

The last two ones

< Less than

> Greater than

= Equal to


The correct statements are '15 < 700' and '700 = 700'.

In mathematics, we use comparison operators to establish relationships between numbers.

By comparing the given numbers, we see that 15 is less than 700, which makes the correct statement: '15 < 700'. Additionally, the statement '700 = 700' is also correct, as these values are identical and other statements are incorrect.

A farmer has 140 bushels of wheat to sell at his roadside stand. He sells an average of 15 3/5 bushels each day. Represent the total change In the number of bushels he has for sale after 6 days

Answers

Answer:

  Change in number of bushels after 6 days = 46.4 bushels.

Explanation:

 A farmer has 140 bushels of wheat to sell at his roadside stand.

  He sells an average of [tex]15\frac{3}{5}[/tex] bushels each day = [tex]\frac{15*5+3}{5} =\frac{78}{5}[/tex]bushels

  Total number of bushels sold after 6 days = 6* [tex]\frac{78}{5}[/tex] = 93.6 bushels.

  Change in number of bushels after 6 days = 140 - 93.6 = 46.4 bushels.

Answer: He has about 46 bushels left (46.4)

Step-by-step explanation:

Hi, to answer this question we have to multiply the average sell of bushels per day (15 3/5) by the number of days stated (6):

15 3/5 x 6 = (15x5+3)/5 x 6 = 78/5 x 6 = 468/5 = 93.6

Finally we have to subtract the number obtained to the number of bushels that the farmer had at the beginning.

140 -93.6 = 46.4

He has about 46 bushels left (46.4)

Feel free to ask for more if needed or if you did not understand something.

Solve 8.246- 5 hundredths

Answers

To solve the expression 8.246 minus 5 hundredths, we subtract 0.05 from 8.246, aligning the decimal places, which gives us the final answer of 8.196, accurately rounded to the thousandths place.

To solve 8.246 - 5 hundredths, we need to understand what five hundredths mean. Five hundredths is the same as 0.05. So, the problem now looks like 8.246 - 0.05.

When we subtract these two values, we need to line up the decimal places properly:

 8.246
- 0.05
------

Subtracting, we get:

 8.246
- 0.050
------
 8.196
Therefore, the final answer is 8.196.

It's important to note that when subtracting values, you must consider the position of the farthest right significant figure. In this case, the least precise number (original number) had its farthest right significant figure in the thousandths place, so our final answer is also rounded to the thousandths place.

"For each power, write an equivalent multiplication expression with two factors"

can anybody help?

Answers

 

10⁴ = 10²⁺² = 10² × 10² 8² = 8¹⁺¹ = 8¹ × 8¹
Final answer:

Converting a power into an equivalent multiplication expression involves rewriting the power's base and exponent using multiplication. The exponent signifies how many times to multiply the base by itself.

Explanation:

Converting a power into an equivalent multiplication expression with two factors involves rewriting the power's base and exponent. Consider, for example, a power like 6^3. This expression can be rewritten as multiplication with two factors in different ways, such as 6 x 6 x 6 or 36 x 6. The exponent value tells us how many times to multiply the base by itself. Remember that this is true for all types of powers, including whole numbers, negative numbers, and fractions, which means your multiplication expression factors may differ.

Learn more about Exponentiation here:

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Compare 4x(8-3)and 32-12

Answers

4x(8-3) = 32 -12
32 - 12 = 32 - 12
32 -32 = -12 + 12
0 = 0
then 4x(8-3) = 32 -12

1. -7/9 • 3/5
A. 18/35
B. 7/15
C. -18/35
D. -7/15

2. 1/3 divided by 5/6
A. 2/5
B. 5/2
C. 2/15
D. 5/18

3. 2 and 1/8 divided by 34
A. 51/32
B. 1/16
C. 2 and 1/3
D. 2 and 5/6

4. -4/5 divided by 8/9
A. -9/10
B. 1/20
C. 9/10
D. -1/20

5. 3/5 Divided by 9/10 A. 2/3
B. 2/5
C. 3/10
D.27/50

6. 4/7 divided by 9/14
A. 3/7
B. 2/3
C. 6/7
D. 8/9

Answers

the answer to the question

Bea bakery bakes 215 cookies and 45 muffins every hour how May baked goods are baked in 4 hours.

Answers

1040. you do 215 plus 45 then multiply that by 4
You do 215 plus 45 and then multiply it by 4 and the answer would be 395

A bookstore buys Algebra 1 books at a wholesale price of $23 each. It marks up the price by 92% and then sells the Algebra 1 books. What is the amount of the markup? What is the selling price?

Answers

Answer:

The mark up is $21.16 and the final selling price is $44.14

Step-by-step explanation:

To find the mark up price, you simply multiply the cost by the mark up percentage. This will give you the mark up.

$23 * 92% = $21.16

Now to find the total selling price, we add the cost and the mark up together.

$23 + $21.16 = $44.16

Final answer:

The amount of markup on the Algebra 1 book is $21.16, calculated by multiplying the wholesale price of $23 by the markup percentage of 92%. The selling price of the book is $44.16, the sum of the wholesale price and the markup.

Explanation:

To calculate the amount of the markup for the Algebra 1 books, we will apply a percentage increase to the wholesale price. The wholesale price of each book is $23, and the markup percentage is 92%. To find the markup amount, we multiply the wholesale price by the markup percentage:

Markup = wholesale price × Markup percentage

Markup = $23 × 0.92
Markup = $21.16

Now, to calculate the selling price, we add the markup to the wholesale price:

Selling Price = Wholesale Price + Markup
Selling Price = $23 + $21.16
Selling Price = $44.16

Therefore, the amount of the markup is $21.16, and the selling price of the book is $44.16.

help me please!!!!!!!

Answers

The attachment shows a model for 2².

Hey there!!

Question given :

... 2²

2² = 2 × 2 = 4

Hence, 2² = 4.

In the options given, the only answer which suites the question is the 4 squares.

Hope my answer helps!!

For the polynomial function ƒ(x) = x4 −25x2, find the zeros. Then determine the multiplicity at each zero and state whether the graph displays the behavior of a touch or a cross at each intercept.

Answers

ANSWER

The zeros are [tex]x=-5,x=0,x=5[/tex]


EXPLANATION

Given;

[tex]f(x)=x^4-25x^2[/tex].


We can rewrite the function as


[tex]f(x)=x^2(x^2-25)[/tex]


[tex]\Rightarrow f(x)=x^2(x^2-5^2)[/tex]


[tex]\Rightarrow f(x)=x^2(x-5)(x+5)[/tex]



The zeros are found by equating the function to zero.


[tex]\Rightarrow x^2(x-5)(x+5)=0[/tex]


[tex]\Rightarrow (x-5)=0[/tex]

The multiplicity is 1, since it is odd the graph crosses at this intercept. which is [tex]x=5[/tex]


Or

[tex]\Rightarrow (x+5)=0[/tex]


The multiplicity is 1, since it is odd the graph crosses at this intercept. which is [tex]x=-5[/tex]


Or


[tex]\Rightarrow x^2=0[/tex]


This last root has a multiplicity of 2.

That is

[tex]x=0[/tex] repeats two times.


Since the multiplicity is even, the graph touches the x-axis at the point [tex]x=0[/tex].



See graph.









Final answer:

The zeros of the function ƒ(x) = x4 -25x2 are -5, 0, and 5. Each of these zeros has a multiplicity of 1. The graph crosses the x-axis at each of these zeros, indicating odd multiplicities.

Explanation:

The polynomial function given is ƒ(x) = x4 -25x2. In order to find the zeros, you set the function equal to zero and solve for x: 0 = x4 -25x2. This can be rewritten as x2(x2 - 25) = 0. From this, it's clear that x = 0 is a zero of the function. The other zeros can be found by setting x2 - 25 = 0, resulting in x2 = 25, and therefore, x = ±5. So, the zeros are -5, 0, and 5. Each of these zeros has a multiplicity of 1, because the factorization of f(x) doesn't include any squared terms. The graph crosses the x-axis at each of these points, which is characteristic of odd multiplicities.

Learn more about Zeros and Multiplicity here:

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Which fraction converts to a terminating decimal number? A. 1/6 B. 2/9 C. 3/8 D. 4/7

Answers

C- 3/8 because it converts to .375

if m<mkl=83. m<jkl=127. and m<jkm=(9x-10). find the value of x

Answers

Final answer:

To find the value of x, we can use the given equations and the Angle Sum Property of a Triangle. By substituting the known values into the equation (9x-10), we can solve for x.

Explanation:

To find the value of x, we can use the facts given in the question. We know that m<mkl = 83 and m<jkl = 127. We also know that m<jkm = (9x-10). From these facts, we can form two equations:

1. m<mkl = 83

2. m<jkl = 127

Using these equations, we can determine the value of x.

Let's solve the first equation:

1. m<mkl = 83

Since m<mkl = 83 and m<jkl = 127, we can substitute these values into equation (9x-10) according to the Angle Sum Property of a Triangle:

2. 83 + 127 + (9x-10) = 180

Simplifying the equation, we get:

3. 210 + 9x - 10 = 180

Combining like terms, we have:

4. 9x + 200 = 180

Subtracting 200 from both sides, we get:

5. 9x = -20

Dividing both sides by 9, we find:

6. x = -20/9

Therefore, the value of x is -20/9.

the length of a rectangle is 7 inches more than its width, if the perimiter of the rectangle is 66 inches, find its dimensions.

Answers

Perimeter of rectangle=66
length of rectangle=L
width of rectangle=w
P of a rect.= 2(length)+ 2(width)
66= 2L+2w

if the length is 7in more than the width, then
L=7+w

Now we will substitute 7+w in for L. Here is our new equation:

66=2(7+w) + 2w

Solve for w

66=14+2w+2w
66=14+4w
52=4w
w=13
L=7+13, so L=20

I hooe this is explained well enough

Rob is twice Joshua’s age.nick is 5years older than Joshua .the sum of all their ages is 45.how old is nick

Answers

To solve this you would set up a systems of equations using the info provided.
x = Rob's Age
y = Joshua's Age
z = Nick's Age

x = 2y
z = y + 5
x + y + z = 45

Substitute the values for x and z into the third equation to find Joshua's age.
2y + y + y + 5 = 45 Combine like terms
4y + 5 = 45 Subtract 5 from both sides then divide both sides by 4.
4y = 40
y = 10
Since we just want Nick's age, go to the z equation and plug 10 in for y.
z = y + 5
z = 10 + 5
z = 15
Nick is 15 years old!

[tex]<b>HEY THERE!![/tex]

GIVEN:- Rob is twice Joshua’s age.nick is 5years older than Joshua .the sum of all their ages is 45.

Now let Rob's age = x
Joshua's age = y
and Nick's age = z

Then as according to question:-
x = 2y.......................1️⃣
z = y+5.................2️⃣
x+y+z = 45...............3️⃣

Now from 1️⃣and2️⃣put the value of x and z in 3️⃣
=> 2y + y + y+5 =45
=> 4y + 5 = 45

Subtract with 5 on both sides.
=> 4y = 40

divide with 4 on both sides
=> y = 10

Now put this new value of y in equation 2️⃣
=> z = 10+5
=> z = 15

So Nick's age is 15 years old.

HOPE IT HELPED YOU.

If Mr. Deane's class, 60% of the students are boys. There are 15 boys in the class. What is the total number of students in Mr. Deane's class?

Answers

He has 25 student n his class


There are 25 students. For explanation 60 divided by 15 is 4 so that means that the 40% left over has to be divided by 2 and that would 20 and then from there you add the numbers together

If a humming bird were to get all of its food from a feeder, then a 16 ounce nectar feeder could feed about 80 hummingbirds a day. How many hummingbirds would you expect to feed with a 12 ounce feeder?

Answers

Answer:

60 hummingbirds can be fed by a 12 ounce feeder.

Step-by-step explanation:

In order to solve this problem, we can make a ratio table. For every 16 ounce feeder, 80 hummingbirds can be fed. However, we want to calculate how many hummingbirds can be fed by a 12 ounce feeder. We can get a common denominator for our ratio to solve this. 16:80 divided by 4:4 is 4:20. Since 4 is a factor of 12, we can multiply 4 by 3 to get 12. However, what we do to one section we do to the other. 20 x 3 is 60. 60 hummingbirds can be fed by a 12 ounce feeder.

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