Triangle Proofs Please help

Triangle Proofs Please Help

Answers

Answer 1

Explanation:

There may be a more direct way to do this, but here's one way. We make no claim that the statements used here are on your menu of statements.

Statement . . . . Reason

2. ∆ADB, ∆ACB are isosceles . . . . definition of isosceles triangle

3. AD ≅ BD

and ∠CAE ≅ ∠CBE . . . . definition of isosceles triangle

4. ∠CAE = ∠CAD +∠DAE

and ∠CBE = ∠CBD +∠DBE . . . . angle addition postulate

5. ∠CAD +∠DAE ≅ ∠CBD +∠DBE . . . . substitution property of equality

6. ∠CAD +∠DAE ≅ ∠CBD +∠DAE . . . . substitution property of equality

7. ∠CAD ≅ ∠CBD . . . . subtraction property of equality

8. ∆CAD ≅ ∆CBD . . . . SAS congruence postulate

9. ∠ACD ≅ ∠BCD . . . . CPCTC

10. DC bisects ∠ACB . . . . definition of angle bisector


Related Questions

PLEASE HELP
Can anyone explain to me what the pythagorean theorem is? I never received an explanation when I asked my teacher for help

Answers

Answer:

In mathematics, the Pythagorean theorem, or Pythagoras' theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.

Step-by-step explanation:

It states that the area of the square whose side is the hypotenuse (the side opposite the right angle) is equal to the sum of the areas of the squares on the other two sides. This theorem can be written as an equation relating the lengths of the sides a, b and c, often called the Pythagorean equation: a²+b²=c², where c represents the length of the hypotenuse and a and b the lengths of the triangle's other two sides.

Solve for x. 8x - 3 and 4x + 3 answer

Answers

After simplifying, your final answer is 3/2. Check the picture above for the work.

Answer for ( f^-1 )

Answers

Answer:

Changes made to your input should not affect the solution:

(1): "^-1" was replaced by "^(-1)".

STEP

1

:

Final result :

 f(-1)

Step-by-step explanation:

PLease tell me if right

angle abc and angle cbd are supplementary angles the measure of angle cbd is 41 degrees what is the measure of angle abc

Answers

Answer:

139

Step-by-step explanation:

180-41=139

5th grade . pls help.

Dorothy is installing purple and
white tile in her kitchen. She made a diagram of the layout
showing the area of both colors. Write two expressions that
describe the area of the purple tile.

Answers

4/16 and 1/4 happy to help :)

https://brainly.com/invite/f6c2ad11c03cc635d6349ff4fa7661f7?utm_source=invite&utm_medium=link&utm_campaign=bfp_qpage_box&utm_term=parent

Answers

Step-by-step explanation:

What's the link for tho?

Answer:

fr

Step-by-step explanation:

me

IF YOU ANSWER THIS I WILL MARK YOU THE BRAINLIEST

Answers

Answer:

The second I think I may be wrong though.

Step-by-step explanation:

It looks like the answer and it is the right one.

(0.4+8(-0.8*5/8)-5 divided by 2 1/2) divided by ((1 7/8*8-(8.9-2.6 divided by 2/3))*34 2/5) *90

I WILL GIVE YOU BRIANLIEST

Answers

Answer:

-1.46511627907

Step-by-step explanation:

What is the radius of a circle (rounded to the nearest tenth) that has a circumference of 87 cm?
a

Answers

Answer:

13.9

Step-by-step explanation:

Answer:

To find the radius from the circumference of a circle, you have to do the following:

Divide the circumference by π, or 3.14 for an estimation. The result is the circle's diameter.

Divide the diameter by 2.

There you go, you found the circle's radius.

hace 6 días

Joelle earns her regular pay of​ $12.50 per hour for up to 40 hours of work in a week. For each hour over 40 hours in a​ week, Joelle is paid 1 1/2 times her regular pay. How much does Joelle earn for a week in which she works 48​ hours?

Answers

answer:

well, 600

Step-by-step explanation:

1. joelle got 12.50/h

2. she work to 40h/w

3. 12.5x40= e/w, is equal to 20+(12x40) = 500.

4. 500 + 1h/$12.5, 8h = 500 + 8x12 + 8x(1/2)

5. 500 + 96 + 8x1/2(8 x 1/2 is 4 because it is the hath) = 600

can someone help me , what is 525 x 358 ?

Answers

Answer:

187,950

Step-by-step explanation:

your welcome

A school is implementing an SAT preparation program. To study the program's effectiveness the school looks at participantsSAT scores before starting the program and after completing the program . The results are shown in the table. How can the values in the Difference row of the table be interpreted?
A. A positive difference means that the students score increased after the program, and a negative difference means that the students score decreased after the program.

B. A positive difference means that the students score decreased after the program, and a negative difference means that the students score increased after the program.

C. A positive difference means that the program was effective, and any negative differences can be ignored.

D. A negative difference means that the program was effective, and any positive difference can be ignored.

Answers

Answer:

b

Step-by-step explanation:

Option B is correct,  A positive difference means that the students score decreased after the program, and a negative difference means that the students score increased after the program.

What is Statistics?

Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.

Given that a school is implementing an SAT preparation program.

To study the program's effectiveness the school looks at participants SAT scores before starting the program and after completing the program .

The results are shown in the table.

We need to find the values in the Difference row of the table be interpreted

if we observe the table before value is less and after value is larger, and when we find the difference we get negative value.

A positive difference means that the students score decreased after the program

Negative difference means that the students score increased after the program.

Hence, Option B is correct,  A positive difference means that the students score decreased after the program, and a negative difference means that the students score increased after the program.

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(4x-5y)-(x-y) six =6,y=-4

Ayudaaaa

Answers

Answer:

the answer is 54 !!!!!!!!!

Answer:

34

Step-by-step explanation:

(4x-5y)-(x-y)        if x=6 and y=-4

step one:

4x=24

5y=-20

24- (-20)= 44

x-y=10

44-10=34

I'm pretty sure I'm right because I worked it out on a calculator and if it changed the minus in 4x-5y to a + then that means the minus here

(4x-5y   - < --  (x-y) is not supposed to become a + sign

solve the equation e^3x-4=3​

Answers

Answer: 0.648637

Explanation:

e^3x = 3 + 4

e^3x = 7

3x = In (7)

X = 0.648637

We are given with a equation i.e ;

[tex]{:\implies \quad \sf e^{3x}-4=3}[/tex]

Transpose 4 to Right-Hand-Side ;

[tex]{:\implies \quad \sf e^{3x}=7}[/tex]

Now , Taking Natural logarithm to both sides ;

[tex]{:\implies \quad \sf ln(e^{3x})=ln(7)}[/tex]

[tex]{:\implies \quad \sf 3x \: ln(e)=ln(7) \quad \qquad \{\because ln(a^{b})=b\: ln(a)\}}[/tex]

[tex]{:\implies \quad \sf 3x=ln(7) \quad \qquad \{\because ln(e)=1\}}[/tex]

[tex]{:\implies \quad \bf \therefore \quad \underline{\underline{x=\dfrac{ln(7)}{3}}}}[/tex]

Find the surface are of the triangular prism
A. 315 in
B. 539 in
C. 469 in
D. 784 in

Answers

Answer:

i think ur answer is c option

Answer is c
Reasons: took the test

Shandar rents a pickup truck for her house move. She has to pay $96 for the first day, $88 for each
additional day she keeps the truck, and 45 cents for each mile she drives. She will also be able to use a
$25 coupon. Write an expression that represents the total cost when Shandar keeps the truck for h days
and travels a total of p miles.

Answers

Answer:

x = 96 + (88h + 0,45p) - 25

Step-by-step explanation:

Expression that represents the total cost when Shandar keeps the truck for h days and travels a total of p mile x= 71+ 88h +0.45p

What is equation?

An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra. Algebra is used in math when you do not know the exact number in a calculation.

Let us consider 'h' the number of additional days

let p be number of miles she drives.

let x be the total cost

Now,

For h days fare will be = 88h

For p miles fare will be = 0.45p

Coupon= $25

Total cost = Charges for first day + fare of additional h days +  charges of total p miles- coupon

x = 96 + (88h + 0,45p) - 25

x= 71+ 88h +0.45p

Hence, required equation is x= 71+ 88h +0.45p

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_______ marshes are the most diverse.
brackish
freshwater
salt
estuary

Answers

The brackish marshes are the most diverse.

What are Brackish Marshes?

These are the sectors that are found in the estuaries that border the coasts, which is why they contain fresh and salt water, which is usually called brackish, where a great diversity of animals live, both salt water and adaptable to brackish water.

Within the fauna of this sector, you can find the archer fish, the Monodactylus argenteus and Scatophagus argus.

If you want to learn more about Marshes, you can visit the following link: https://brainly.com/question/17326027

Answer: freshwater

Step-by-step explanation: Edge 2022 states this

Write an inequality for the situation The value, v, of the necklace is greater than $83

Answers

Answer:

v > 83

Step-by-step explanation:

V: represents the necklace

83: V must be greater than 83

>: greater than symbol

Have a great day!

Please mark brainliest!

What is smaller than 1/4 but greater than 1/2 pls help

Answers

According to the image, it would be 1 and 1/3.

Answer: 3/8

Step-by-step explanation:

cuz it is

If x=3 what is the value of y in this equation?

Y=12x



a. 123
b. 36
c. 3
d. 15

Answers

Answer:

[tex]\displaystyle \large{y=36}[/tex]

Step-by-step explanation:

We are given the equation [tex]\displaystyle \large{y=12x}[/tex]. To find y-value when or at x = 3, simply substitute x = 3 in which gives us [tex]\displaystyle \large{y=12(3)}[/tex] then evaluate the value as we obtain the y-value or final answer to the question:

[tex]\displaystyle \large{\boxed{y=36}}[/tex]

If you have any questions about this question or for clarification, do not hesitate to ask in comment!

Tina baked some cookies. 12 of her cookies were peanut butter. 12 of the peanut butter cookies also had chocolate chips. What fraction of the cookies were peanut butter and had chocolate chips?​

Answers

Answer:

12/12 or 1

Step-by-step explanation:

Tina baked 12 peanut butter cookies, and it is said that 12 of them had chocolate chips. So, we can make a fraction, being 12/12

A peach grower expects to produce 13,400 peaches if a crate holds 92 peaches how many crates will the grower need?

Answers

146 crates

13,400 peaches divided by 92 per crate is roughly 145.65 crates. You can’t have part of a crate so round up to get 146 crates


Dana wants to build a rectangular pen for her goats. The length of the pen should be at least 50 feet, and the perimeter of the pen should be
no more than 190 feet.

Answers

The width of the pen must not be less than 45 feet

Perimeter of the pen

The formula for calculating the perimeter of a rectangle is expressed as:

P = 2(l + w)

Given the following

P = 190feet

l = 50feet

Required width

190 = 2(50 + w)

95 = 50 + w

w = 45

Hence the width of the pen must not be less than 45 feet

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Find the z value to the left of the mean so that 82.12% of the area under the distribution curve lies to the right of it.

Please explain!

Answers

P(z)=0.1788

z = - 0.91995

What is x' value when 5x=10?

Answers

Answer:

x=2 because 5*2=10

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

5x = 10

or, x = 10/5

or, x = 2 :)) (would love if you could mark me the brainliest)

Last week the price of apples at a grocery store was $1.60 per pound this week apples at the same grocery store are on sale at 10% discount what is the total price of four and
1/2 pounds of apples this week at the grocery store

Answers

Answer:

0.72

Step-by-step explanation:

first you take 1.60 and find 10 percent of it once you find that you times it by 4.5.

Answer:

$6.48

Step-by-step explanation:

10 = 0.16

1.60-0.16=1.44

1.44x4=5.76

1.44/2=0.72

5.76+0.72=6.48

The equation l 7x-1 l= 10 is equivalent to
or

Answers

Answer:

NO!

Step-by-step explanation:

b/equivalent fraction is two fraction exactly the same solution set!but this no the same solution set!

7x_ 1=10

6x/6=10/6

x=1.666667

so,No!

(8x+6) (10x+9y) 73° 110°

Answers

Answer:{x,y}={-1,-4}

Step-by-step explanation:

 [2]    8x = 4y + 8

 [2]    x = y/2 + 1

// Plug this in for variable  x  in equation [1]

  [1]    10•(y /2+1) - 9y = 26

  [1]     - 4y = 16

// Solve equation [1] for the variable  y

  [1]    4y = - 16

  [1]    y = - 4

// By now we know this much :

   x = y/2+1

   y = -4

// Use the  y  value to solve for  x

   x = (/2)(-4)+1 = -1

ABCD is rotated counterclockwise about the origin. By how many degrees
was ABCD rotated?
A. 360 °
B. 90°
C. 180°
D. 270°

Answers

Answer:

image please

Step-by-step explanation:

What is the average rate of change over the interval [-1,2]​

Answers

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

so let's take a peek at the table, so hmmm when x = -1, b(x) = 1, so we have the point (-1 , 1), and when x = 2, b(x) = 7, so we have the second point of (2 , 7)

[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{7}-\stackrel{y1}{1}}}{\underset{run} {\underset{x_2}{2}-\underset{x_1}{(-1)}}}\implies \cfrac{6}{2+1}\implies \cfrac{6}{3}\implies 2[/tex]

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