Mathematics High School

geometric proofs- how can i prove that angle DAE=DBE?

Geometric Proofs- How Can I Prove That Angle DAE=DBE?

Answers

Answer 1
1. AC ~= BC, angle(ACD) ~= angle(BCD)
Given

2. CD ~= CD
Reflexive property

3. triangle(ACD) ~= traingle(BCD)
SAS

4. AD ~= BD
CPCFC (congruent parts of congruent figures are congruent)

5. angle(DAE) ~= angle(DBE)
Properties of isosceles triangle

Related Questions

The difference of n and 7 is no more than 12. Find all possible values of n.

Answers

Answer:

-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29

7-12= -5

7+12= 29

-5 ≤ n ≤ 29 or -5 ≤ n < 30 or -6< n ≤ 29 or -6 < n < 30

either one is acceptable. question was not clear but i did my best! :)

I agree with the person above

Evaluate: 7.921 x 104.

79,210,000

7,921

792.1

79,210 Will mark brainly
Need now!!

Answers

Answer:

79,210,000

Step-by-step explanation:

:)

Evaluate V.
V=LWH
L=3. W = 2. H= 1

Answers

Answer:

Answer is 6cm³

Step-by-step explanation:

V = 3 × 2 × 1

= 6cm³

Find the slope of the line that passes through (6, 3) and (9, 5).

Answers

Answer:

2/3

Step-by-step explanation:

y2 - y1 / x2 - x1

5 - 3 / 9 - 6

2/3

help plz ill give u BRAINEST ​

Answers

Answer:

First option, relation 1 and relation 4

Step-by-step explanation:

Because they both cross one of the two axes once, which from what I remember, makes it a function.

Hope this makes sense, and please correct me if I'm wrong :)

Could someone help answer this, please no spam, thank you, will give brainliest, homework help,!

Answers

Answer:

Inequality form: b > 8

The function f(x)=260−55 x represents the distance, in miles, remaining on a trip x hours into the trip. What is the value of f(3)

Answers

F(3) means what is the value of the function when x=3. Therefore, plug 3 into the equation and you will have the answer. F(3)= 260-55(3) = 260-165 = 95.

95 miles.

Between which two consecutive whole numbers can we find 96−−√?

A.7 and 8
B.8 and 9
C.9 and 10

Answers

C. 9 and 10 I think


Hoped it helped (:

please answer!! WILL GIVE A BRAINLIEST AND THANKS!

Answers

Answer:

2)  Lyn has 42, and Jo has 21

4)  320 women

6) 12 miles

Step-by-step explanation:

2) Divide 63 by 3 and get 21. 21 + 21 = 42 for Lyn, and leave 21 for Jo.

4) Subtract 20 from 620, and get 600. Divide 600 into 2 and get 300. 300 +20 = 320

6) Divide 24 into 2, and get 12. Multiply 12 by 3 and get 36. Divide 36 by 3 and get 12. 12 is your answer.

Hope this helps!

-kiniwih426

factor [tex]x^{2} + 2x[/tex]

Answers

Answer:

the answer is x(x+2)

-2.4 - 4.9=
It’s not 2.5

Answers

Answer:

-7.3

Step-by-step explanation:

You can't subtract a negative number. Enjoy and brainliest would make my day :D

Answer:

-7.3

Step by step explanation:

−2.4−4.9

=−2.4−4.9

=−2.4+−4.9

=−7.3

Cameron had a balance of $450.00 in his account, and then he made a purchase for $517.50. What is the
new balance in his account?

Answers

Answer:

-$67.50

450 - 517.5 = -67.5

easy ratio questions !! - giving brainly if correct and both questions are answered :) question in the file ^​

Answers

Answer:

3 blue 9 orange

Step-by-step explanation:

The third option.

Help me please i need help

Answers

C because I checked all of the other answers and they were wrong. Please mark Brainliest

Can anyone explain this to me?

Answers

Answer:

Option C

Step-by-step explanation:

Long division or synthetic division. Look up these two techniniques.

The value of (√5 + √2)2
(A) 7+ 2√5 (B) 1+ 5√2 (C) 7+2√10 (D) 7-2√10

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

Using identity :

[tex] {(a + b)}^{2} = {a}^{2} + b {}^{2} + 2ab[/tex]

[tex]( \sqrt{5 }{+ \sqrt{2{}^{} } } ) {}^{2} [/tex]

[tex]( \sqrt{5} ) {}^{2} + ( \sqrt{2} ) {}^{2} + 2( \sqrt{5} )( \sqrt{2} )[/tex]

[tex]5 + 2 + 2 \sqrt{10} [/tex]

[tex]7 + 2 \sqrt{10} [/tex]

therefore, the correct choice is :

[tex] \mathrm{C.) \: \: 7 + 2 \sqrt{10} }[/tex]
Solution:

[tex]( \sqrt{5} + \sqrt{2} {)}^{2} \\ [/tex]

[tex]by \: \: \: using \: \: \: the \: \: \: formula \: \: (a + b) ^{2} = {a}^{2} + 2ab \: + {b}^{2} \: \: we \: \: \: get \\ ( \sqrt{5} {)}^{2} + 2( \sqrt{5}) \: (\sqrt{{2)}} + ( \sqrt{2) }^{2} \\ = \sqrt{5} \times \sqrt{5} + 2 \sqrt{5 \times 2} + \sqrt{2} \times \sqrt{2} \\ = 5 + 2 \sqrt{10} + 2 \\ = 7 + 2 \sqrt{10} [/tex][/tex]

Answer:

(C) 7+2√10

What is the range of the discrete finite function mapped below?
F(x)
2
6
8
-10
A. {(2, 2), (6, 1), (6,4), (10,5)}
B. {(1,6), (2, 2), (4, 6), (5, 10)}
C. {1,2,3,4,5)
D. {2, 6, 10}

Answers

Answer:

your right is (C)

hope it's help you (^0^)

Which of the expressions bests fits this situation?

Answers

Answer:The answer is option B

Step-by-step explanation:

To get the balance, the amount given to each employee should be multiplied by the total employees then the total surplus should be subtracted from the suplus distributed among the employees to get the remaining surplus

The Turbo Penguins football team has three colors of jerseys, Black, White,
and Yellow, and two colors of pants, Gray and Purple. Which list shows all
possible jersey and pant combinations team members can wear?
A. BW, BY, BG, BP, WY, WG, WP, YG, YP, GP
ООО
B. BG, BP, WG, YP
C. BG, BP, WG, WP, YG, YP
O
D. BG, GB, BP, PB, WG, GW, WP, PW, YG, GY, YP, PY

Answers

Answer:

c

Step-by-step explanation:

Each jersey can be paired with both pant colors once, so you should have 6 different combinations of pants and jerseys.

2x+20=12x by first subtracting 20 from each side what property allows you to do so does it help you get closer to finding a solution what is a better first step

Answers

Answer:

Step-by-step explanation:

2x+20=12x

We can subtract 2x from both sides:

2x+20-2x=12x-2x

20=10x

20/10=x

x=2

Hello everyone, could someone help me with this problem

Answers

Which problem the whole page?
2. 42 is the rounded answer the real answer was 42.2
3. 15 real answer 15.5

2. Which numbers are equivalent to 0.6?
Circle all that apply.
6
A.
B. 60%
100
6
C. 0.60
D.
10
E.
F. 6%

Answers

Answer = B and F

So 0.6 can be also said as 0.60/100 . There for O.60/100 can be B

and... 0.6 can be also said as 6/10...

So it can be F

5x-4=11
Can anyone answer this for me

Answers

Answer:

3

Step-by-step explanation:

5x=11+4

5x=15

x=15/5

x=3

Answer:

x=3 is the answer.

What is 4.4 dvided 1.85

Answers

Answer:

2.378378378

Step-by-step explanation:

rounded it would be 2.4

2.378. This is the answer

The school colors at Mission Middle School are green and white. Kendra volunteered to make cupcakes
for the school bake sale. To make the right shade of green frosting, she uses 7 drops of blue food
coloring for every 3 drops of yellow food coloring.

Answers

64 will be your answer because the amount of blue each time time used for each cupcake will be multiplied into 3 which will be 3

I NEED HELP If right will make brileintest


Using the graph of f(x) and g(x), where g(x) = f(k⋅x), determine the value of k.


Graph of two lines. f of x passes through 2, 0 and 3, 2, and g of x passes through two thirds, 0 and 1, 2.


3

one third

negative one third

−3

Answers

Answer:

k=4

Step-by-step explanation:

So we have the graphs of f(x) and g(x).

And we know that g(x) is defined as  f(kx), where k is some constant.

First, from the graph we can note two points:

For g(x), we have the point (1,10) and for f(x), we have the point  (4,10).

ok now can you give me brainlest

14. Thomas is building a fence around his
garden. He made a scale drawing as
shown below.
4 cm
2 cm
Scale
1 cm: 1.5 m
What is the perimeter of the actual fence?
13

Answers

Answer:

18 meters

Step-by-step explanation:

4 cm = 6m

2cm = 3m

6x3=18

Please <3 my Answer B )

Answer:

13

Step-by-step explanation:

Are these correct look at all them start by the first photo and say number one is

Answers

Answer

For picture 1 it's 13/20

and 2nd is 25/12 or 2 1/12

picture 3 it's 55/28 or 1 27/28

picture 4 it's 11/12

picture 5 it's 1/2 hour , 1 hour 1 1/2 hour

Step-by-step explanation:

your answers are correct.

What quantities are being compared? (If there are x- and y- axes, what do they represent?)

Answers

Answer:

The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).

Summarize Rotational Symmetry in your own words.

Answers

Answer:

a pattern that we can turn a pattern by some degree about a point and the pattern looks exactly the same

Step-by-step explanation:

Many geometrical shapes appear to be symmetrical when they are rotated 180 degrees or with some angles, clockwise or anticlockwise

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