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
Doss [256]
3 years ago
14

Find m What is the m m

Mathematics
2 answers:
Fiesta28 [93]3 years ago
4 0

Answer:

120

Step-by-step explanation:

ABC is a straight line so it is equal to 180

ABC = ABD + DBC

180 = 2x + x+90

Combine like terms

180 = 3x+90

Subtract 90 from each side

180-90  = 3x+90-90

90 = 3x

Divide each side by 3

90/3 = 3x/3

30 =x

We want to find DBC

DBC = x+90

       = 30+90

        = 120

Alex3 years ago
3 0

Answer:

m<DBC=120°

Step-by-step explanation:

2x+x+90=180

3x=180-90

3x=90

x=30

m<DBC=x+90=30+90=120

You might be interested in
A dealer gained a 10% profit by selling an article for Birr 330.00. what was original price of the article​
astraxan [27]

Answer:

???????

Step-by-step explanation:

6 0
2 years ago
The formula t=√h/4 represents the time t in seconds that it takes an object to fall from a height of h feet. If a rock falls fro
raketka [301]

Answer:

it would take 14mph

Step-by-step explanation:

8 0
3 years ago
Which congruence theorems can be used to prove △ABR ≅ △ACR? Check all that apply. HL SAS SSS ASA AAS
Verizon [17]

HL (It's a right triangle and the hypotenuse and leg are congruent. This can also be thought of as SAS.)

SAS (Side angle side. All congruent.)

SSS (Line AR is shared by both triangles. A line is always congruent on itself. The other two are self explanatory.)

ASA and AAS cannot be used because we can only confidently confirm one angle of each triangle.

5 0
3 years ago
Read 2 more answers
Find the length of the median and the missing base. Be sure to show all your work. NO LINKS!!!​
dezoksy [38]

Answer:

The bottom is  11

The median is  12

Step-by-step explanation:

The median is the average of the top and bottom

(13+ 2x-3) /2 = 4x-16

Combine like terms

(10+2x)/2 = 4x-16

Divide by 2

5+x = 4x-16

Subtract x from each side

5+x-x = 4x-16-x

5 = 3x-16

Add 16 to each side

5+16 = 3x-16+16

21 = 3x

Divide by 3

21/3 = 3x/3

7 =x

The bottom is 2x-3 = 2*7-3 = 14-3 = 11

The median is 4x-16 = 4*7-16 = 28 -16 = 12

7 0
2 years ago
Read 2 more answers
A section of a boardwalk is made using 15boards. Each board is 9/1/4 inches wide. The total width of the section is 144 inches.
sleet_krkn [62]
If there are 15 boards there are 14 gaps in-between. 
But first, 15 boards each 9 and 1/4th inches so you get  a total of 138 inches and 3/4th
If you subtract that from 144 you get 5 inches and 1/4th. The remaining amount is the total of all of the distance from the spacing.
Then you divide that by 14 (number of gaps/spacing in-between.)
So you get .375 inches. (3/8)
So width of the spacing between each board is 3/8ths of a inch
4 0
3 years ago
Other questions:
  • Please help with math!
    8·2 answers
  • Choose a number between 61 and 107 that is a multiple of 3, 6, and 9
    15·1 answer
  • 6(x-2)=5x+3x+8 solve for x.
    7·2 answers
  • What is t in 336= 214.2(t+3) and 336= 367.2(t)
    9·1 answer
  • Solve inequality algebraically 3|x +2|+7&lt;43
    15·1 answer
  • I NEED HELP ASAP!!!<br> I don’t understand the question
    15·2 answers
  • Which of the following is false?
    13·1 answer
  • Find the horizontal asymptote for each function<br> and tell the reason for your answer.
    6·1 answer
  • What number is equivalent to 2.34 x 1.08 x 5.6?
    14·2 answers
  • 7.5 Cheetah Speed and reasoning
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!