Perpendicular lines have slopes that are negative reciprocals to each other, that is, if one slope is a/b, the other is -b/a
in this case, the given slope is 1/3, so the other line's slope is -3/1, which is -3
from the graph we see that the y intercept of line b is -4, so the equation of line b is: y=-3x-4
He would need 6 meters of copper piping or just a tiny tincy bit more
Answer:
x=3
Step-by-step explanation:
2x+3=9
2x=6
x=3
The correct answer is the first option -
ninth root of x squared.
To see how I got that answer, take a look at the attachment below.
Answer:
1 1/2 miles
Step-by-step explanation:
3 3/4 - 2 1/4..
3/4 - 1/4 = 2/4=1/2
3-2= 1
1+1/2=1 1/2 miles
