IN triangle DEF, DE is congruent to FD and m

Answers

Answer 1

Answer:

The measure of angle E is 55°

Step-by-step explanation:

In an isosceles triangle, the vertex angle is the angle including between the two equal sides, the base angles are the other angles of the triangle, the base angles are equal in measures

In triangle DEF

DE is congruent to FD

∴ The length of DE = the length of FD

∵ ∠D is the angle including sides DE and FD

∴ ∠D is the vertex angle

∠F and ∠E are the base angles

∵ The base angles of the isosceles triangle are equal in measures

m∠F = m∠E

∵ m∠F = 55°

∴ m∠E = 55°

The measure of angle E is 55°


Related Questions

The ramp measures 9 feet long and is 3 feet from the ground. What is the slope of the ramp?

Answers

Answer:

I think it's y = 3 and x = 9 so 3/9 I think.

or -3/9 if the ramp goes down

or 3/9 if the ramp goes up

good luck!

What is the slope of the line that goes through points (-3,-4) and (-7, 16)?

Answers

Answer:

The slope is -5

Step-by-step explanation:

16 -(-4) / -7 -(-3) = 5

Hope this helps. Pls give brainliest.

-5. have a good day

I need help with linear regression ​

Answers

Answer:

In statistics, linear regression is a linear approach to modelling the relationship between a scalar response (or dependent variable) and one or more explanatory variables (or independent variables). The case of one explanatory variable is called simple linear regression. For more than one explanatory variable, the process is called multiple linear regression. This term is distinct from multivariate linear regression, where multiple correlated dependent variables are predicted, rather than a single scalar variable.

Find an exact value. Cos 75° negative square root of six plus square root of two quantity square root of six minus square root of two divided by four quantity negative square root of six plus square root of two divided by four square root of six minus square root of two

Answers

Answer:

√2(√3 - 1)/4

Step-by-step explanation:

To find an exact value for Cos75°, we use the compound angle formula. Since 75° = 45° + 30°, Cos75° = Cos(45° + 30°).

Using Cos(A + B) = CosACosB - SinASinB where A = 45° and B = 30°,  

Cos75° = Cos(45° + 30°) = Cos45°Cos30° - Sin45°Sin30°

Now Cos45° = Sin45° = 1/√2 = √2/2, Cos30° = √3/2 and Sin30° = 1/2.

Substituting these values into the above equation, we have

Cos75° = Cos(45° + 30°)

= Cos45°Cos30° - Sin45°Sin30°

= √2/2 × √3/2 -  √2/2 × 1/2

= √6/4 -√2/4

= √2(√3 - 1)/4

Y’all pls help me kanajkabawiajjajqjqkqknabajokqnqq

Answers

Answer:

help with what? what is your q u e s t i o n

Step-by-step explanation:

Answer:

I will help, but I need to know your question first haha!

Step-by-step explanation:

Please help I don't want to get a bad grade

Answers

Answer:

2m-17

Step-by-step explanation:

-20+1/4(8m+12)

-20+2m+3

2m-20+3

2m-17

the answer is -20+ (8m+12/4)

What percentage of the circle is shaded? *

2%
25%
50%
75%

Answers

Answer:

50%

Step-by-step explanation:

There are 4 sections in the circle. 2 out of 4 of them are shaded. That is half. 50% is another way of representing half of something.

Answer:

its c 50%

Step-by-step explanation:

A company orders 18 boxed lunches from a deli for $223.20. If each boxed lunch costs the same amount, what is the unit cost of each boxed lunch?​

Answers

Answer:

12.40

Step-by-step explanation:

[tex]223.20 \div 18[/tex]

that will give you the answer of 12.40 for each unit.

Answer:

Step-by-step explanation:

1 box costs x amount

18 boxes cos 223.20

Cross multiply

223.20 * 1 = 18 x

Divide by 18

223.20 / 18 = 18x / 18

x = 12.40

Cost of 1 box is 12.40

Solve the following:
3x + 7 = 5x - 1
X =

Answers

Answer:

x= 4

Step-by-step explanation:

3x + 7 = 5x - 1

combine the like numbers: add 1 to the other side, isolating 5x

3x + 8 = 5x

Subtract 3x from 5x, isolating 8

8 = 2x

divide

4 = x

Check if it works

3(4) + 7 = 5(4) - 1

19 = 19

Yes, it is correct

Find the inverse:
y = -3x +5

Answers

Answer:

Step-by-step explanation:

x=-3y+5

x-5 = -3y

y = -(x-5)/3

This is the inverse function of y

Um técnico em eletricidade recebeu um molho que continha 12 chaves não identificadas pra abrir a porta de um quarto de hotel e efetuar os reparos necessários na rede elétrica.qual a probabilidade de ele acertar na primeira tentativa

Answers

Answer:

Step-by-step explanation:

Dado que:

Um técnico em eletricidade recebeu um pacote que continha 12 chaves não identificadas, a probabilidade de que ele acertasse na primeira vez será:

= número de ensaios / número total de ensaios disponíveis

O técnico eletricista tem apenas uma tentativa

uma vez que existem 12 chaves não identificadas, o número total de testes disponíveis 12

= 1/12

= 0.0833

= 0.0833 × 100

= 8.33%

the figure is symmetric about the x- and y-axis. what is the area of the figure below

Answers

Answer:

126 units²

Step-by-step explanation:

Draw 5 vertical lines BR, CQ, EO, GM, HL and we will have 4 trapezoids and 2 rectangles.

Trapezoid ABRS ≅ trapezoid IHLK

Trapezoid DEOP ≅ trapezoid FEON

Rectangle BCQR ≅ rectangle GHLM

Area of trapezoid is [tex]\frac{b_{1} +b_{2} }{2}h[/tex]

Area of rectangle is [tex]lw[/tex]  

The total area of the figure is: ( 2 × [tex]A_{ABRS}[/tex] + 2 × [tex]A_{BCQR}[/tex] + 2 × [tex]A_{DEOP}[/tex] )

In trapezoid ABRS: [tex]b_{1}[/tex] = 6, [tex]b_{2}[/tex] = 8 and h = 3 ⇒

2 × [tex]A_{ABRS}[/tex] = 2 × [3(6 + 8) ÷ 2] = 42 units²

In rectangle BCQR: l = 6 and w = 3 ⇒

2 × [tex]A_{BCQR}[/tex] = 2 × (6 × 3) = 36 units²

In trapezoid DEOP: [tex]b_{1}[/tex] = 6, [tex]b_{2}[/tex] = 10 and h = 3 ⇒

2 × [tex]A_{DEOP}[/tex] = 2 × [3(6 + 10) ÷ 2] = 48 units²  

[tex]A_{total}[/tex] = 42 + 36 + 48 = 126 units²  

XYZ shown below has a measure of (8x + 12)°. The measure of 1 is (4x + 8)°, and the measure of 2 is (9x - 11).
What is the measure of ZXYZ?
A 3
B 20°
C 36°
D 60

Answers

Answer:

C

Step-by-step explanation:

∠ XYZ = ∠ 1 + ∠ 2, substitute values

8x + 12 = 4x + 8 + 9x - 11 = 13x - 3 ( subtract 13x from both sides )

- 5x + 12 = - 3 ( subtract 12 from both sides )

- 5x = - 15 ( divide both sides by - 5 )

x = 3

Thus

∠ XYZ = 8x + 12 = 8(3) + 12 = 24 + 12 = 36° → C

A playground is rectangular with a length of 1/2
miles. If the area of the playground is 5/8
square miles, what is its width? Input your answer as a fraction. Need help ASAP for a grade

Answers

Answer:5/4

Step-by-step explanation:

Area = length* width

5/8 = 1/2 * width

Width = 5/4

Answer:

5/4 miles.

Step-by-step explanation:

Width = area / length

=  5/8 / 1/2

= 5/8 * 2

= 10/8

= 5/4 miles.

A book weighs 0.65 kg. A printing company packs 5 copies of
the book in a box. How much do the books in the box weigh?

Answers

Answer:

3.25 kg

Step-by-step explanation:

Since there are five books in the box, and one book weighs 0.65 kg, you just have to multiply 0.65 by five.

0.65(5)=3.25. So the answer is 3.25kg

The circle has a radius of 11 cm. What is the area of the shaded sector? Use 3.14 for π, and round your answer to the nearest tenth.

What is the approximate area of the shaded sector?
23.0 cm2
126.7 cm2
253.3 cm2
379.9 cm2

Answers

Answer:

C) 253. 3 cm²

Step-by-step explanation:

1. Sector area formula can be in degrees or radians. I will use degrees because we are given 240 degrees as a unit.

2. SA= [tex]\frac{x}{360}[/tex] times [tex]\pi r^{2}[/tex] where x is the degrees of the sector

3. 240/360 times 3.14(11)²

4. 0.66666667 times 379.94

5. approximately 253. 3 cm²

Answer:

C. 253.3 cm2

Step-by-step explanation:

HELPP PLEASEEE!!
(look at the photo)

Answers

Answer:

B

Step-by-step explanation:

If you notice, since concert tickets is 1, the cost is $23. So we are finding an option that satifies that. The only option is B.

Hope you get a 100. Please hit the crown if correct :D

Answer:

B:23 dollars is the cost for each concert ticket

Step-by-step explanation:

Determine whether 2, 5, 9, 14, . . . is an arithmetic sequence

Answers

Answer:

no because they do not go up by the same number  plz mark brainiest

Step-by-step explanation:

No it’s not because it’s not in a specific order

Which statements about the Commutative Property of Multiplication are TRUE? Select all that apply. A. The property applies to all real numbers. B. The property states that ab is equivalent to ba. a ( x + y ) = ax + ay C. There is also a Commutative Property of Division because multiplication and division are related operations. D. The property states that when multiplying three numbers together, you can multiply any two of them first and then multiply by the remaining number.

Answers

Answer:

b) The property states that ab is equivalent to b a

Step-by-step explanation:

Commutative property:-

the commutative property , when we multiply two integers , the answer we get after multiplication will remain the same, even if the position of the integers are interchanged.

Let 'a' and 'b' be the two integers , then  ab = b a

Example:-

   .    1 X 2 = 2 X 1 = 2

  .    12 X 5 = 5 X 12 = 60

Answer:

B

Step-by-step explanation:

WILL GIVE BRAINLIEST A full grown elephant can, on average, eat 300 lbs of food and drink 50 gal of water each day. How much food is needed for 4 elephants for a week?

Answers

Answer:

8400

Step-by-step explanation:

Explanation: do 300 times 28 because 28 days is 4 weeks then you will get your answer please give brainliest!

Answer:

8400

Step-by-step explanation:

300x4 is 1200 then, you multiply by 7( 7 because there is 7 days in a week) which you get 8400 pounds of food

Question 1 (1 point)
(05.06)
Which of the following points lie in the solution set to the following system of inequalities? (1 point)

y < −3x + 3
y < x + 2

a
(1, −5)

b
(1, 5)

c
(5, 1)

d
(−1, 5)

HELP PLEASE

Answers

Answer:

The points that lie in the solution set of following system of inequalities are:

Option A (1,-5) and Option C (5,1)

Step-by-step explanation:

We need to find the points that lie in the solution set to the following system of inequalities

[tex]y<-3x+3\\y<x+2[/tex]

We will check each option to identify if they satisfy the given set of inequalities or net.

Option A (1,-5)

We have x=1, y=-5

Putting values and checking

[tex]\\y<-3x+3\\-5<-3(1)+3\\-5<0 \ (true)\\y<x+2\\-5<1+2\\-5<3 \ (true)[/tex]

So, Option A is correct as both values satisfy the given set of equations

Option B (1,5)

We have x=1, y=5

Putting values and checking

[tex]y<-3x+3\\5<-3(1)+3\\5<0 \ (false)\\y<x+2\\5<1+2\\5<3 \ (false)[/tex]

So, Option B is not correct as both values doesn't satisfy the given set of equations

Option C (5,1)

We have x=5, y=1

Putting values and checking

[tex]y<-3x+3\\1<-3(5)+3\\1<-15+3\\1<12 \ (true)\\y<x+2\\1<5+2\\1<7 \ (true)[/tex]

So, Option C is correct as both values satisfy the given set of equations

Option D (-1,5)

We have x=-1, y=5

putting values and checking

[tex]y<-3x+3\\5<-3(-1)+2\\5<3+2\\5<5 \ (false)\\y<x+2\\5<-1+2\\5<-1 \ (false)[/tex]

So, Option D is not correct as both values doesn't satisfy the given set of equations

The points that lie in the solution set of following system of inequalities are:

Option A (1,-5) and Option C (5,1)

On a social media site, Josie gets 10 friend requests. She could accept or reject any of them. How many different possible ways could she respond to this set of 10 requests?

Which one is the correct answer?
9
10
11
19
20
21
45
44
46
1024
1023
1025
None of the above

Answers

20 because she could chose to accept or reject the 10 request

You can buy 2 songs on I-Tunes for $ 2.58, or 3 songs for $ 3.87. Write an equation to show the relationship between the number of songs, s, and the total cost, c.

Answers

Answer:

for the first pack, 1 Itune song would be 1.29 and for the other pack, for one Itune song would be 1.29 also, the relationship between these problem is that they are the same price for 1 song. The total cost for 1 is $1.29 hope this helps, have a great day! ツ

Step-by-step explanation:

Which equation represents the line that is parallel to 5x+y=13 and passes through the point (15,-31)?

Answers

Answer:

thx for 10 points tho

Step-by-step explanation:

A Jackhammer from 1 meter away produces roughly 100dB of sound. What is the sound pressure caused by the Jackhammer? Recall that the loudness of a sound in decibels (dB) is given by the equation L=20log10(ppref) dB. Please help i'm so lost!!!

Answers

Answer:2

Step-by-step explanation:

Answer:

2Pa

Step-by-step explanation:

just did the hw :)

A bag contains 8 red pens, 7 blue pens, and 14 black pens. Denato will pull a pen from the bag.

When Denato pulls a pen from the bag, how many outcomes are possible?

A.8
B.7
C.14
D.29
20 POINTS!!

Answers

The probability helps us to know the chances of an event occurring. The number of possible outcomes When Denato pulls a pen from the bag is 29.

What is Probability?

The probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

Given that the bag has 8 red pens, 7 blue pens, and 14 black pens. Therefore, if Denato will pull a pen from the bag the number of possibilities will be the sum of all the number of pens.

Number of Possibilities = 8 + 7 + 14 = 29

Thus, the number of possible outcomes When Denato pulls a pen from the bag is 29.

Learn more about Probability:

https://brainly.com/question/795909

Answer:

29

Step-by-step explanation:

There are 9 pens, so 29 outcomes

I need you to find the value for X, show steps please!

-4x = 22

Answers

Answer:

x=-5.5

Step-by-step explanation:

This equation has already been simplified to the last part for you so all you have to do is divide 22 by -4 and you get -5.5

22/-4=-5.5

Answer:

x = -5.5

Step-by-step explanation:

To answer this you need to isolate the x.. So -4x/-4 and then do the same to 22. So 22/-4 = -5.5

The answer is x = -5.5

the question is on the sheet ​

Answers

The answer is Y=3/2x -4 :)

Answer:

m= 3 /2

Step-by-step explanation:

find the value of s(5) in function s(x)=2^2+10

Answers

Answer:

0

Step-by-step explanation:

Please help me with My algebra. I'm stressing a lot right now so Thank you.

I might brainly you

Answers

Hello! These worksheets are online! Just look up the title and it should come up if not just repost the picture fully and I’ll look it up for you!
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