Mathematics Middle School

ΔABC is an isosceles triangle with AB = AC, D is the midpoint of BC and
AD is joined. Prove that ΔABD ≅ ΔACD.
I kinda have a problem with triangles and congruency....little help please ?

Answers

Answer 1

Step-by-step explanation:

Okay, so the triangle would look something like this:

see the image attached

Since AB=AC, which is given; <ABD = <ACD, because they are the angles opposite from the congruent sides of the isosceles triangle; and <ADB=<ADC, as AD is the bisector*; ΔABD ≅ ΔACD using SAA/AAS (side-angle-angle) congruencey.

*If the bisector of an angle in a triangle meets the opposite side at its midpoint, then the triangle is isosceles, and vice versa

(I haven't done Geometry in a while so I hope that's correct :) )

ABC Is An Isosceles Triangle With AB = AC, D Is The Midpoint Of BC AndAD Is Joined. Prove That ABD ACD.I

Related Questions

Graded Assignment Unit Test, Part 2:

Unit 5 Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.

Be sure to include your work and WRITTEN Explanation

Juan wants to buy a video game for $63. He saves $12 every Friday.

How many Fridays will it take for Juan to save up enough money for the video game?

Answer: Show your work and explain!

Answers

Answer:

Step-by-step explanation:

if you divide the 63 by the 12 it would be 5.25 so it would take 6 fridays to save up!

Juan needs $63. He gets 12 every Friday.

1) divide 63 by 12 = 5.25

Answer :6

HELP (now I got a photo) RIGHT ANSWER FETS BRAINLEII3ERTGT

Answers

C is the correct answer

Question 1 of 17
Which expression uses the associative property to make it easier to evaluate
6(3/2x1/5)?
A 6 (1/5x3/2)
B 6 (2/3x1/5)
C (6x3/2)1/5
D (3/2x1/5)6

Answers

I think the answer is C (6x3/2)1/5
c im pretty sure you can probably find an algebra calculator on the internet hope this helps

Pls I need help with this math problem!!!

Answers

Answer:

(2,1)

Step-by-step explanation:

The solution is the point where the two lines cross.

Hope this helped! :)

I might be wrong but I think it’s (2,1)

HELP PLEASE WILL BE MARKED BRAINLIEST

21) In a local animal sanctuary, there are 48 deer and 64 monkeys. Find the ratio of deer to monkeys.


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22) Gerry scored 56 in Math and 84 in Science. Find the ratio of his scores in Math to Science.


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23) A fruit seller bought 75 mangoes and 125 apples from vendor. Find the ratio mangoes to apples bought.

Answers

Answer:

:Zzz:

Step-by-step explanation:

21) 48:64 Simplified 3:4

22) 56:84 Simplified 2:3

23) 75:125 Simplified 3:5

21=108.4

22)1.5

23)17.8

2. A passenger train travels at an average speed of 45 mph and it took the passengers 27
minutes (.45 hours)to get to their destination. How many miles did the train travel?

Answers

Answer:

Ok well the .45 hour is usless information but to solve it you just do miles/minute and you shoud get 1.67

(I put the .67 cause i would have been an infinite or 1.66666....)

Step-by-step explanation:

Answer:  The .45 hour is useless information but to solve it you just do miles/minute and you should get 1.67

Step-by-step explanation:

Rearrange the slopes into order from the lardest to smallest

Answers

Answer 1 2 3

Step-by-step explanation:

cap

Basically the first is number two second one third three

Please help I cant do this

Answers

Answer:

a-1/27 b-2835

Step-by-step explanation:

a

(1/3)(1/3)(1/3)

b

7x3x5 나누기 1/27

The answer is a circle a

-15/-18=10/x
what is X?

Answers

Answer:

12

Step-by-step explanation:

(-15)/(-18) = 10/x cross multiply expressions

-15x = -180 since both sides are negative we can write without the sign

15x = 180 divide both sides by 15

x = 12

The answer you are looking for is 12

I really need help. My teacher isn't here and it's 8 am. My brain needs food too -.-

Answers

Option B is the correct answer
b is the correct answer, sorry if I’m late too this

Calculate the area and circumference of each circle.

Answers

circle 1 area≈ 2.01 yd
circle 1 circumference≈ 5.024 yd
circle 2 area≈ 2.54 yd
circle 2 circumference≈ 5.652 yd

I NEED HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ I WILL MARK BRAINLEST

Answers

Answer:

EQUAL TO

Step-by-step explanation:

Equal to would be the answer

Explanation: When plugging in numbers and matching the graph with an equation you get that answer therefor the equation is equal to it

Hope I helped! (Would appreciate Brainliest) :)

use fraction strips to find the sum. Write your answer in simplest form.

1/3 + 1/4
​

Answers

Answer:

7/12

Step-by-step explanation:

1/3 + 1/4

~Find common denominators

4/12 + 3/12

~Add

7/12

Best of Luck!

Answer:

7/12

Step-by-step explanation:

1/3 -> 4/12

1/4 -> 3/12

4/12 + 3/12 =7/12

Charlotte measured the temperature at 7:00 A.M. and again at 3:00 P.M. She placed both measurements on a number line.

How did the temperature change between 7:00 A.M. and 3:00 P.M.?
A. It increased by 3/4 °C.
B. It decreased by 3/4°C. ik there's two that's just what the answers say
C. It increased by 11 and 3/4 °C.
D. It decreased by 11 and 3/4 °C.

Answers

Can I see a picture of the graph? then i can solve it

Chicago has a temperature of -10 degrees Fahrenheit (°F). It is colder in Minneapolis than in Chicago.

Select all values that could represent the temperature of Minneapolis.

12°

8°

-8°

-12°

-20°

Answers

-12 and -20 degrees since they are lower numbers and colder bc it goes down the temp.
It can be-8 degrees

Easy 100 points if you do all 5 questions.
plz help

Answers

Answer: 1) 80 - 66 = 14

              2) -5, -2, 0, 2, 4

              4) -5.7, -2.4, 2, 3, 4.9

I'm very sorry I didn't know what to do in problems 3 and 5.

Answer:

ok this is for 3

Step-by-step explanation:

im trying to figure 5 out rn

Danielle earns an 8.25% commission on everything she sells at the electronics store where she works. She also earns a base salary of $675 per week. How much did she earn last week if she sold $4,200 in electronics merchandise? Round your intermediate calculations and answer to the nearest cent.

Answers

Answer:

$12381.82

Step-by-step explanation:

what is the y-intercept of an equation

Answers

Answer:

The point on a graph where a line crosses the Y-axis (The vertical line)

Step-by-step explanation:

..... i need help with these 3 questions Q^Q

Answers

Answer:

3/5(x-8)-y = D

Step-by-step explanation:

3/5 (15-8)-1/10

= 41/10 or 4.1

First picture is D
I don’t know the second
Third picture is 5/8

1000000 x 1000000= what?

Answers

Answer:

1000000000000

Step-by-step explanation:

1000000x1000000=1000000000000

The solution of the expression 1000000 x 1000000 in exponential form is  [tex]10^{12}[/tex].

A collection of constants, variables connected using one or more arithmetic operator is called an expression.

Example = 4y, 3x+4.

The way of writing or expressing a number in powers is called exponent.

Example: [tex]3^2[/tex]

Here, 3 is the base and 3 is the power.

The given expression can be written in the index  or exponential form as:

1000000 x 1000000 = [tex]10^6 \times 10^6[/tex]

Since, the given exponent has the same base.

So, using the law of exponent, it can be written as:

[tex]a^m + a^n = a^{(m+n)[/tex]

[tex]10^6 \times 10^6 = 10^{(6+6)}[/tex]

                  = [tex]10 ^{12}[/tex]

Thus, the solution of the expression 1000000 x 1000000 in exponential form is [tex]10^{12}[/tex].

Learn more about exponents here:

https://brainly.com/question/5497425

#SPJ4

Write the equation of the line in the graph in POINT-SLOPE form.

Answers

Answer: y= -8/4x+2

Step-by-step explanation:

find our y-intercept and slope

(rise over run to find your slope)

the two points it provides are what you will use to find the slope

see how for you run from point A to B then your rise as well

it should be rise=-8 run=4

0,2 is your y-intercept

now use your equation y= mx+b

b=your y-intercept and mx= your slope

plug the numbers in and you will get the answer

Decide which story can be represented by the system of equations below.

y=x+6.5y=x+6.5

x+y=19.5x+y=19.5

a. Rosa has 6.5 times more blue fabric than red fabric. She has a total of 19.5 yards of fabric.

b. Ryan's shoe size is 6.5 sizes larger than his little brother, Harrison. Ryan and his sister, Sasha's, shoe sizes add up to 19.5.

c. Yandel has 6.5 more pieces of pizza than his dad. Together, he and his dad have 19.5 pieces of pizza.

Answers

Answer:

Step-by-step explanation:

am i dum or is this super confusing

This looks very confusing how do you deal with this

Sabantolo used the rule "Add 8" to make a pattern. He started with 16 and wrote the next 5 numbers in his pattern. His pattern is below.

16, 24, 30, 38, 46, 54

Is Sabantolo's pattern correct?

A.
Yes. Sabantolo's pattern is correct.

B.
No. The pattern should be 16, 24, 32, 40, 48, 56.

C.
No. The pattern should be 16, 22, 30, 38, 46, 54.

D.
No. The pattern should be 16, 24, 30, 36, 44, 52.

Answers

Answer:

Answer is B. Hope this helped :)

Step-by-step explanation:

Answer:

the answer is B!

HELP PLS 10 POINTS + BRAINLIST~!

A package of 8 pens costs $1.09. Milo’s work to find the unit price of the pack is shown below.



Where did Milo make his first error?
He assumed the pens are equally priced.
He wrote the unit rate incorrectly.
He made a place value error when dividing.
He multiplied instead of dividing.

Answers

He wrote the unit rate incorrectly

He put the 8 pens over the 1.09 and that means division he should have wrote to like a multiplication problem

While eating lunch, Vivian ate 65% of the carrots she had in her bag. There were 20 carrots in her bag before she ate any. How many carrots did Vivian have left in her bag after she ate?

Answers

Answer:

Vivian would have 7 carrots left to spare if she ate 65% of the carrots in the bag.

Step-by-step explanation: Since 65% of 20 carrots equals 13 carrots, we would do 20 - 13. In which equals 7 so she has 7 carrots left in fer bag

Equation: 20-x=?

Solution: 20 - 13=7

If I got it wrong, please let me know. And if I got it right, can you please mark me as Brainliest? I'm trying to get pass the "ambitious" rank. Hope this helps you out!

Evaluate.

(−2)4

Enter your answer in the box.


PLEASE HURRRY AND HELP ME!!!

Answers

Answer:

Our answer will be -8 i think

Answer:

-8

Step-by-step explanation:

Remove bracket

-2*+4

Multiple

-8

ahh i think i got this wrong !! help please !

Answers

Answer:

the answer is three

v+0.54v

because v is the price of the violin and you are adding the og price to

54% of the price in order for it to be mark up

Which number line shows the solution set for StartAbsoluteValue m EndAbsoluteValue = 4?
A number line going from negative 4 to positive 4. A point is at negative 4.
A number line going from negative 4 to positive 4. A point is at positive 4.
A number line going from negative 4 to positive 4. Points are at negative 2 and positive 2.
A number line going from negative 4 to positive 4. Points are at negative 4 and positive 4.

Answers

Answer:

A number line going from negative 4 to positive 4. Points are at negative 4 and positive 4.

The answer is A I think.

Drawing a ball from a bag without looking is an example of simple random sampling. Which of these actions could affect the FAIRNESS of the outcome of this simple random sample?

A. cable subscribers between the ages of 21 and 40
B. cable subscribers who are parents of children between the ages of 3 and 10
C. children between the ages of 3 and 10
D. children who attend a local elementary school

Answers

D is the correct answer
Answer: D is correct

how do you find the slope of a line on graph

Answers

Answer:

look at the picture .......................

Answer:

y2-y1/x2-x1

Step-by-step explanation:

first step is to get to pints on the graph

for example

(2,3) and (4,6)

From these points we will plug them into the formula as such.

6-3 divided by 4-2

subtracting first we get

3 divided by 2

In a fraction this will be your answer. Just use the formula.

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