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
Ilya [14]
2 years ago
15

Triangle DBC is equilateral,AB = AC. Work out the size of angle x. Pls asap​

Mathematics
1 answer:
allochka39001 [22]2 years ago
3 0

Answer:

x = 21º

Step-by-step explanation:

∆ ABC is isosceles therefor

Angles B and C are congruent

(180  - 18)/2 = 162/2 = 81º

------------------

∆ BCD is equilateral  therefor all angles are 60º

---------------------------

x = = 81 - 60

x = 21º

You might be interested in
A surveryor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the
bonufazy [111]
Yes it is biased aaaaaaaaaaaaaaaaaaaaaaaaaa
3 0
2 years ago
Read 2 more answers
Choose the phrase that best describes the matrix
lions [1.4K]

Answer:

coefficent matrix

Step-by-step explanation:

P. 366

"If the column of constant terms is not included, the matrix reduces to that of the coefficent matrix of the system"

-1 -3 -1

9 -9 -1

-1 -3 4

7 0
2 years ago
Read 2 more answers
Elsa makes a poster that is 1.5 m tall. Greg makes a poster that is 96 cm tall. Who makes a taller poster?
Mademuasel [1]

Answer:

dont mind me just grinding for points

Step-by-step explanation:

6 0
2 years ago
Margo is creating a pencil caddy in the shape of a triangular prism. She is determining how much wood she needs to build the cad
natka813 [3]

Answer:

a little late

205 1/5 is your answer

Step-by-step explanation:

break down the 3-D figure

Find area of triangle A=1/2bh

=1/2(8 inch)(6   9/10inch)

=1/2(8 inch)(69/10 inch)

=138/5 square inch

then multiply two because you have 2 triangles

=138/5 (2)  

= 276/5 square inch

= 55 1/5 sq.in

Find area of rectangle

A = lw

=6 1/4 in (8 in)

= 25/4 (8 in.)

= 50 sq. in.

then multiply by 3 because of the three rectangles

= 50 sq. inch (3)

= 150 sq. in.

Add all together

55 1/5 sq. inch + 150 sq. inch = 205 1/5 sq. inch

4 0
2 years ago
What are two equivalent forms for 15xyz+10xy+5x
7nadin3 [17]
We can express this number in the standard form, which is simply 15xyz+10xy+5x.  Alternatively, we can factor a 5 or an x out, receiving 5(3xyz+2xy+x) or x(15yz+10y+5).  However, the most effective factorization is to factor out 5x, for a result of 5x(3yz+2y+1).
3 0
3 years ago
Other questions:
  • Consider △LNM. Which statements are true for triangle LNM? Check all that apply. The side opposite ∠L is NM. The side opposite ∠
    9·2 answers
  • X/9 × 4 what is the number of X? Im very confused.
    15·2 answers
  • Which of the following functions is graphed below?
    7·1 answer
  • Which one of these points lies on the line described by the equation below y - 5 = 6 ( x - 7 )
    9·1 answer
  • Please answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!
    15·1 answer
  • Which statement describes the mapping?
    8·1 answer
  • Given that CA = CB and m∠CPB = 90 degrees, which statement can you conclude is true?
    9·1 answer
  • Anyone who wants to ask me any questions directly can type it here! I will help as much as i can.
    7·1 answer
  • DETAILS
    6·1 answer
  • How do you write (4)(25)-300 as an addition equation
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!