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
Vikki [24]
3 years ago
5

EXPLAIN THE MISTAKE

Mathematics
1 answer:
Vlad [161]3 years ago
7 0

Step-by-step explanation:

Both of these mistakes were made bc someone didn't know what "supplementary" means. If two angles are supplementary (an angle and its supplement) they ADD UP TO 180°

Mistake: They used 90 in the original set up. These angles do not add up to 90°.

47+x=180 subtract 47 from both sides

x = 133°

In #5, MISTAKE: the original set up, they put the two angles equal to each other. The two shown angles laying next to each other add up to 180°

115°+ (5x-10)°= 180° combine like terms

5x + 105° = 180 subtract 105 from both sides

5x = 75 divide by 5

x = 15

You might be interested in
Which angles are pairs of alternate exterior angles
RoseWind [281]

Answer:

when a straight line cuts two or more parallel lines then the angles forming on the side of transversal line exteriorly opposite to eachother is called exterior alternative angle.

for eg if AB //CD and EF is a transversal line meeting the parallel lines at G abd H then the exterior alternative angle are angle EGB = angle CHF and angle AGE=angle DHF are two pairs of exterior alternative angle .

hope its helpful to uh !!!!!!

8 0
4 years ago
Which of the following is NOT equivalent to the expression a - (-b)
Montano1993 [528]

Answer:

b + (-a)

Step-by-step explanation:

8 0
3 years ago
Please just answer don’t ask
frozen [14]

Answer:

20

The strawberry is 3, The watermelon is 3, The peach is 9, and the other one is 5

3+3+9+5=20

5 0
3 years ago
Read 2 more answers
Which graph shows a strong negative correlation
postnew [5]
The one with the steepest slope going down from left to right
7 0
3 years ago
Evaluate the expression (20)-(-12)
kodGreya [7K]

Answer:32

Step-by-step explanation:

(20)-(-12)=20+12=32

4 0
4 years ago
Other questions:
  • Is it possible for two numbers to have a difference of 8, and a sum of 1?
    13·2 answers
  • A merry-go-round has a circular platform with a radius of 5 feet. What is the platform's diameter?
    14·1 answer
  • Subtract the equations 3X plus 4Y equals 17 minus ( 3X plus 2Y equals three )
    13·1 answer
  • This question is confusing. Please help me!
    13·2 answers
  • Helpppppp I need help Asap
    9·2 answers
  • Question 3
    12·1 answer
  • Write an equation of a line in slope-intercept form with the given slope and y-intercept.
    7·1 answer
  • The area of a square is 20 m2.<br> What is the length of a side of the square?
    9·1 answer
  • 8. What is the slope of the line that passes through (4, -15) and (2, -15)?
    12·2 answers
  • Which one of these is. linear function
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!