When there are no lines, there is one region: (l, r) = (0, 1).
When there is one line, there are two regions: (l, r) = (1, 2).
When there are two lines, there are 4 regiions: (l, r) = (2, 4).
When there are 3 lines, there are 7 regions: (l, r) = (3, 7).
Each line adds a number of regions equal to its line number, so the total number of regions is one more than the sum of numbers 1 to l.
... r = (l)(l+1)/2 + 1
Answer:
y=2, the equation of a line which is perpendicular to the line 3x+5=0
A(-5/3,2) the foot of the perpendicular from B to the line
Step-by-step explanation:
d1 : 3x+5=0, so 3x=-5, x=-5/3
y=2, the equation of a line which is perpendicular to the line 3x+5=0
A(-5/3,2) the foot of the perpendicular from B to the line
Answer:
The cost of 1 scarf is $12.25 each.
Step-by-step explanation:
Answer:
Step-by-step explanation:
this question is like greater or smaller so if you had the numbers 2 and 8 of course you know that the 8 would be more.
That’s 29 I thinking I don’t know