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
Brilliant_brown [7]
2 years ago
15

A

Mathematics
1 answer:
REY [17]2 years ago
7 0

Answer: C

Step-by-step explanation:

Angles in a quadrilateral add to 360 degrees, so:

90^{\circ}+90^{\circ}+99^{\circ}+m\angle C=360^{\circ}\\\\m\angle C=81^{\circ}

You might be interested in
The triangles are congruent by SSS.
Marysya12 [62]

Answer:

a and d

Step-by-step explanation:

i took the test

8 0
3 years ago
Read 2 more answers
Which undefined term is needed to define an angle?<br><br> Plane<br> Point<br> Ray<br> Line
Crank
Line+line = angle. dhxs


















3 0
3 years ago
Please help, must be done by today
Ostrovityanka [42]

The answer is -5x + 4y = -20

8 0
3 years ago
Which of the distributions is left skewed?
tino4ka555 [31]

Answer:

i would pick line c and e before i  would do a and e and b fnhwbh bfrhb bdh hejwhjd febhrew

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve for x in the diagram below
MrRissso [65]

Answer:

x=20 degrees

Step-by-step explanation:

because this is a supplementary angle, you add everything and set it equal to 180 degrees. so it would be x + 100 + 3x = 180. combine like terms to get 100 + 4x = 180. subtract 100 from both sides to get 4x = 80. divide by 4 on both sides to isolate the x and your final answer is 20. hope this helped! good luck in school xoxo

8 0
3 years ago
Other questions:
  • A school is having a fund raising dance and hope to raise at least $4,000 for the athletic department. There are two types of ti
    5·1 answer
  • How do you find the intersection between 2 lines?
    5·2 answers
  • A university surveyed its students on their opinions of campus housing. The following two-way table displays data for the sample
    6·1 answer
  • Its 8:05 i read for 30 mins what time did i start ?​
    15·2 answers
  • For each of these intervals, list all its elements or explain 2.1 Sets 131 why it is empty. a) [a,a] c) (a, a] e) (a,b), where a
    9·1 answer
  • Add, subtract, multiply, or divide the following fractions. Remember to find the LCD first.
    8·1 answer
  • Help me please.i don't understand any of this.​
    6·1 answer
  • I bad at division<br> i was good at it in 2nd grade but then i lost it
    10·1 answer
  • Help with this question -8=-16+n​
    6·1 answer
  • CHALLENGE Randi and her sister made balloon animals and sold them for $0.50 each at
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!