To make perpendicular lines use your compass and make it over half the length of the bottom line. Make an ark on both sides of the line. then repeat on the opposite side of the line. Your two arks should have intersected at two points. Then us your straight edge to connect the two points. This video should help with the parallel lines. https://www.youtube.com/watch?v=im81vHIhZS8
Answer:
-21
Step-by-step explanation:
Simplify, you get 12n+4=-6n-14. You simplify even more to get n=-1.
Answer:
12.3
Step-by-step explanation:
Round it where you have 3 numbers that are not 0.
12.3456
round to the hundredths place
12.34 (round to 4)
12.3 (3 sigfigs)
