Answer: 180 degrees
Step-by-step explanation:
Angles on a line add to 180 degrees since they form a straight angle.
Answer:
D - The slope from point O to point A is three times the slope of the line from point A to point B.
Answer:y= - Squared x squared + z squared
Step-by-step explanation:
3x+21-12=8x-28
collect the like terms
3x-8x=-28(21-12=9)
-5x=-28-9
-5x=-37
x=7.4