Answer:
the 2nd 3rd and 4th answers are the correct ones
Step-by-step explanation:
hope this helps you
Answer:
180 - 90 = 90
half of 90 = 45
40 and 50??
Step-by-step explanation:
Answer:
the approximate range of change is 150 for 3
the approximate range of change is 1600 for 4
between 1970 and 1975
please give me brainlest
Answer:
The angles are vertical
Step-by-step explanation:
x+42+2x+1=180
put the like terms together i.e 2x+x+42+1=180
you get: 3x+43=180
Take 43 to th other side of 180 i.e 3x=180-43 i.e (180-43=137)
You get 3x=137
Divide both sides by 3
you get x=45.666666666667(Round off to get 45.67)
Substitute the value of x to the angles
x+42(45.67+42=87.67)
2x+1(2(45.67)+1=92.34
Add 87.67+92.34=180
THis shows that the angles are vertical
