When two lines intersect to form a 90 degree angle, these lines are called perpendicular lines.
Answer:
30
Step-by-step explanation:
20+12-E=2
32-E=2
-E=-30
E=30
X(x+1) 1(x+4)
x^2+x+x+4
x^2+2x+4
Well first you take 78 and turn it to 7.8
then multiply by 10000
therefore 7.8*10000= ?
