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
soldi70 [24.7K]
2 years ago
14

In ΔBCD, \overline{BD}

Mathematics
1 answer:
Alex787 [66]2 years ago
4 0

Answer:

30degrees

Step-by-step explanation:

Given

Exterior angle m<CDE = 7x - 19 degrees

interior angles are

m<BCD = 2x - 1

m<DBC = x+10

Since the sum of the interior angles is equal to the exterior, hence;

2x - 1 + x+10 = 7x - 19

3x + 9 = 7x - 19

3x - 7x = -19 - 9

-4x = -28

x = 28/4

x = 7

Get m<CDE

m<CDE = 7x - 19

m<CDE = 7(7) - 19

m<CDE = 49 - 19

m<CDE = 30degrees

You might be interested in
PLEASE HELP ME I BEG
Kay [80]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• 1 + cot²x = csc²x

Consider the left side

csc^{4} x - cot^{4} x

Factorise as a difference of squares

= (csc²x - cot²x)(csc²x + cot²x)

= (1 + cot²x - cot²x)(csc²x + cot²x)

= csc²x + cot²x

= csc²x + csc²x - 1

= 2csc²x - 1 = right side ⇒ verified




8 0
3 years ago
The area of the composite figure is ______ square millimeters.
leonid [27]

Answer:

i believe its 110mm

Step-by-step explanation:

3 0
3 years ago
Un vehiculo parte del reposo con una velocidad constante de 2 m/seg 2 y se mueve durante 5 segundos, su desplazamiento durante e
Andreas93 [3]

Answer:

The BLM presents awards to companies that minimize negative effects on the environment while mining natural resources. One such award is called the Hardrock Mineral Environmental Award. The BLM awards it to the mining company that has best fulfilled federal, state, or local requirements with little help from government agencies.

How does giving this award help the BLM more effectively manage land resources?

It prevents the companies from mining land resources such as gold and coal.

It informs companies about which minerals can be mined and which cannot be mined.

It encourages companies to follow rules set by government agencies.

It educates the companies about ways hard rock mining can destroy land resources.

7 0
3 years ago
Which expression is equivalent to 16x4 – 64? and explain the answer plzz​
GuDViN [60]

Answer:

4(4x1-16)

Hope this helps

Have a good day :)

PS I disibuted 4 to 4x1 to get 16 and 4 to -16 to get -64

Step-by-step explanation:

3 0
3 years ago
Jaz has the following scores from a new game:
Marina86 [1]

Answer:

the mean of it all will increase

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • A picture is x+20 cm in width and 2x-10 cm in length. The frame is a
    8·1 answer
  • Find the equation of the sphere if one of its diameters has endpoints (4, 2, -9) and (6, 6, -3) which has been normalized so tha
    7·1 answer
  • A bag contains 9 red marbles and 18 blue marbles. If a representative sample contains 2 red ​marbles, then how many blue marbles
    7·1 answer
  • 325.4 miles on 17.3 gallons
    8·1 answer
  • What is the missing term that makes these ratios equivalent? 1.5:3, 31.5:____
    13·1 answer
  • If IN=2x+10 and AT=26, find x.<br><br> A.) 12<br> B.) 10<br> C.) 6 <br> D.) 8
    12·1 answer
  • The lines graphed below are parallel.The slope of the red line is-4/3. What is the slope of the green line?​
    6·2 answers
  • 1. Which equation can you use to find the value of x?
    11·1 answer
  • 11. Jeff is taking his family and friends to the movies. Adult tickets, a, are $8 and child
    13·1 answer
  • PLLLZZZ HELP and explain how you got it
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!