1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natalija [7]
3 years ago
9

Can someone please explain 7 and 8 to me? I really don’t get it that well. On 7, why are they congruent? Why is it false for 8?

Mathematics
2 answers:
EleoNora [17]3 years ago
8 0

Answer:

Step-by-step explanation:

In ΔABD and ΔBDC

  BD = BD  {common to both trianles}

 ∠ABD =∠DBC    {BD is bisects ∠B}

∠BAD =   ∠BCD   {given in the sum, both are 90}

ΔABD and ΔBDC are congruent triangles.

7) so, AD conguent CD

8) False.

AB congruent CB because ΔABD and ΔBDC are congruent as CPCT rule.

AB congruent CB not because of BD is bisector of  ∠B

Crazy boy [7]3 years ago
5 0

Answer: Look below :)

Step-by-step explanation:

7. <u>AD</u> and <u>CD</u> are congruent.  Each of the triangles are the same in length and shape (both are right triangles). They are the same but are mirrored over the line <u>BD.</u>

8.  I have no idea. Sorry.

You might be interested in
Find the common difference of the following sequence.​
Darya [45]

You have the correct answer. It is choice B) -1/4

=======================================================

Explanation:

This is because we're adding -1/4 to each term to get the next one. In other words, we're subtracting 1/4 from each term to get the next one.

  • term2 = term1+(d) = 1/2 + (-1/4) = 1/2 - 1/4 = 2/4 - 1/4 = 1/4
  • term3 = term2+(d) = 1/4 + (-1/4) = 1/4 - 1/4 = 0
  • term4 = term3+(d) = 0 + (-1/4) = 0 - 1/4 = -1/4
  • term5 = term4+(d) = -1/4 + (-1/4) = -2/4 = -1/2

and so on.

----------

To find the common difference, all we have to do is subtract any term from its previous one.

For example:

d = (term2) - (term1)

d = (1/4) - (1/2)

d = (1/4) - (2/4)

d = (1-2)/4

d = -1/4

The order of subtraction matters, so we cannot say d = term1-term2.

3 0
2 years ago
14. a? +b = c<br>Pythagorean Theorem​
lions [1.4K]

Answer:

a^2 + b^2 = c^2

Step-by-step explanation:

a^2 + b^2 = c^2

5 0
3 years ago
Helpppppppppppppp helpppppppppppppp​
jarptica [38.1K]

Answer:

A.

1. 6/9

2. 6/3

3. 3/6

4. 9/6

5. 3/9

B.

1. 8/12

2. 3/7

3. 5/3

4. 12/15

5. 20/25

Step-by-step explanation:

You can turn a ratio from #:# into #/# so if the ratio was 3:9 the fraction form would be 3/9.

4 0
2 years ago
Enter the number that belongs in the green box
Vlada [557]

Answer:

X=90

Step-by-step explanation:

x=90 because it is a right angle.

hope that helps!

5 0
2 years ago
X<br> 0<br> 1<br> 2<br> 3<br> 4<br> y<br> ००<br> 12<br> 16<br> 20<br> 24
densk [106]
What to do?????????.......
4 0
2 years ago
Other questions:
  • the triangular opening at the front of the tent is 8 feet at the bottom. The sides are 10 feet long each. How tall is the tent a
    12·1 answer
  • Cameron is designing a calendar as a fund raising project for math class. The cost of printing is $500, plus $2.50 per calendar.
    11·2 answers
  • A middle school has 470 students. Regina surveys a random sample of 40 students and finds that 28 have cell phones. How many stu
    7·2 answers
  • A company sells cereal in two different-sized boxes: a 17-ounce box for $2.89, and a 24-ounce box for $3.29. How do the unit pri
    5·1 answer
  • Hey! i’ll give brainliest please help
    7·1 answer
  • Solve the following quadratic equation:<br><br> y=5x2+10x<br> Solutions: x= and x=
    15·1 answer
  • Which mixed number is equivalent to 38 divided by 7
    14·1 answer
  • First to solve right !!!!WIL GET MARKED BRAINLIEST!!!! (easy)
    10·2 answers
  • When solving a mass/particle or particle/mass conversion calculation what piece(s)
    10·1 answer
  • What is the area of the shape?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!