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
Sveta_85 [38]
3 years ago
9

Can someone please help me find DC?

Mathematics
2 answers:
dimaraw [331]3 years ago
8 0

\bf \stackrel{\measuredangle A}{(5x-14)}+\stackrel{\measuredangle D}{(4x+5)}=\stackrel{\textit{linear angles}}{180}\implies 9x-9=180 \\\\\\ 9x=171\implies x=\cfrac{171}{9}\implies x=19 \\\\[-0.35em] ~\dotfill\\\\ \overline{DC}\implies -2x+54\implies -2(19)+54\implies -38+54\implies 16

elena55 [62]3 years ago
5 0

Answer:

DC = 12

Step-by-step explanation:

In a parallelogram consecutive angles are supplementary, that is

∠DAB and ∠ADC are consecutive and supplementary, thus

5x - 14 + 4x + 5 = 180

9x - 9 = 180 ( add 9 to both sides )

9x = 189 ( divide both sides by 9 )

x = 21

Hence

DC = - 2x + 54 = (- 2 × 21) + 54 = - 42 + 54 = 12

You might be interested in
Eileen brought 8 roses for $45.50.Which is the best way to estimate the cost of one rose?
masya89 [10]

Answer:

50 divided by 8 is the best estimation. gives you 6.25


7 0
3 years ago
7/8 - 3/64 give your awnser in its simplest form
prisoha [69]

Answer: to

this answer is attached to the picture

3 0
3 years ago
Read 2 more answers
Please help! / 50 points
lutik1710 [3]

Answer:

Solution given:

radius [r]=4

height [h]=5

we have

Surface area of cylinder=2πr(r+h)

=2π×4(4+5)

=<u>72πunits³ is a required volume.</u>

3 0
3 years ago
The square ABCD is divided into eight equal parts. The shaded area is 25 cm². What is the area of the square ABCD​
Akimi4 [234]

Answer:

I think the answer is 200cm^2

Step-by-step explanation:

since the square is divided into eight equal parts

and one shaded part is =25cm^2

multiply the area of the shaded part by the number of equal parts

= 25cm^2 ×8

= 200cm^2

6 0
3 years ago
He can run 20 km in 95 minutes. He wants to know how many kilometers he will go if he runs at the same pace for 285 minutes.
DIA [1.3K]

Answer:

60km

Step-by-step explanation:

In 95 mins,he can run is 20km

In 1 min,he can run is 20/95

= 4/19in lowest

Now,

In 285 mins,he can run is=4/19*285

=4*15 in lowest

=60 km

3 0
3 years ago
Other questions:
  • Line JK bisects line LM at point J. Find JM if LJ=23 centimeters
    8·2 answers
  • If 3x - 1 = 11, what is the value of x2 + x?
    11·2 answers
  • Write an equation of the line that passes through the given points (-4,8) and (2,2)
    10·2 answers
  • Two similar pyramids have base areas of 12.2 cm2 and 16 cm2. The surface area of the larger pyramid is 56 cm2. What is the surfa
    8·2 answers
  • What is the opposite of |-6|
    8·2 answers
  • The ratio of men to women in a room is 3:4. Eight women enter the room, no men enter the room and none of the original people in
    14·2 answers
  • PLS HELP ILL MARK BRAINLIEST ITS URGENT
    11·1 answer
  • PLEASE HELP, ILL GIVE BRAINLIEST! SIMPLE MATHS.
    8·2 answers
  • What are the two whole numbers nearest to 2.5
    7·2 answers
  • Help me please and thank you
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!