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
Serggg [28]
3 years ago
12

I️ need help with the your turn part

Mathematics
1 answer:
Helen [10]3 years ago
7 0

Because the angle is a straight angle, it means that the total of DEC and CEF would be 180º. (CEF + DEF = 180º) With this information we can make the equasion:

(11x - 12) + (2x + 10) = 180

first, to find x:

to simplify (11x - 12) + (2x + 10) = 180, you add the two equations:

13x - 2 = 180

13x = 182

x = 182/13

x = 14

Now, insert the x (which we found that is 14) to each equation.

DEC: (11 x 14 - 12)

= 154 - 12 = 142

m DEC is 142º.

CEF: (2 x 14 + 10)

=28 + 10 = 38

m CEF is 38º.

<em>check: (CEF + DEC = 180º)</em>

<em>38 + 142 = 180 </em>

therefore, the answers are correct :D

You might be interested in
What is the point of intersection when the system of equations below is graphed on the coordinate plane?
ivanzaharov [21]
B)infinite intersection points
6 0
3 years ago
Read 2 more answers
Geometric figures that are<br> __________ are exactly the same shape and size.
loris [4]

Answer:

Step-by-step explanation:

A geometric figure is intuitively defined as a set of points and lines in space. In the words of Euclid: A figure is that which is contained by any boundary or boundaries

7 0
2 years ago
Read 2 more answers
Solve quadratic equation (x-3)^2+5=14
laiz [17]

Answer:

the Answer is 14=5+2^(3-x)

Step-by-step explanation:

6 0
3 years ago
Slope intercept form
elena-14-01-66 [18.8K]
The slope intercept form is y = me+b
5 0
2 years ago
Reduce <br>0.1 x squared - 8.1 x + 8 = 0 to<br>2x squared - x + 80 = 0<br><br>​
Yuliya22 [10]

Answer:

x = 8

x = -10

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • the picture below shows the path that puppy Liz is running. The electrical post is 40 feet tall. Puppy liz usually starts at the
    6·2 answers
  • What is the solution for -3x ≥ 36? x ≤ -12 x ≥ -12 x ≤ -108 x ≥ -108
    7·1 answer
  • Are you guys all in k12? I’m an 8th grader
    12·2 answers
  • If someone spent 9/15 hour shopping and 4/5 cleaning, how much more time in hours was spent cleaning?
    6·1 answer
  • What is the characteristic of a Matrix Null:
    7·1 answer
  • Evaluate the expression 6(3)^-3
    8·1 answer
  • Which polynomial is equal to (-3x^2+2x-3) subtracted from (x^3-x^2+3x)?
    8·2 answers
  • In standard form, the number 72105.4 is written as 7.21054 × 10n where n is equal to ________.
    12·1 answer
  • Claudia spends $2.15 a day for lunch. Her cafeteria lunch account has a balance of $48.00. Which equation can be used to determi
    10·2 answers
  • There are 21 students in class. The median age of the students is 23. The oldest student is 29
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!