Answer:
lines 1 and 3
Step-by-step explanation:
y = 2 is a horizontal line parallel to the x- axis
x = - 4 is a vertical line parallel to the y- axis
Then these 2 lines are perpendicular to each other
y = 15x - 3 ( in the form y = mx + c ) with m = 15
y + 1 = - 5(x + 2) ( in the form y - b = m(x - a) with m = - 5
For the lines to be perpendicular the product of their slopes = - 1
However
15 × - 5 = - 75 ≠ - 1
The 2 lines 1 and 3 are perpendicular
Answer:
The answer is -2 1/2
Step-by-step explanation:
Answer:
y = 8
x = 9
Step-by-step explanation:
given equation,
x + y = 17 ........(1)
9 x - y = 73...........(2)
writing in matrix form
A X = B
using augamented matrix A|B
using row transformation
R₂ = R₂ - 9 R₁
now,
now
-10 y = -80
y = 8
and
x + y = 17
x = 17 -8
x =9
Answer:
A) 1/30
Step-by-step explanation:
total of 25 coins at beginning
total of 24 coins after the first coin is drawn and spent
P('d' then 'n'): 5/25 · 4/24 = 1/5 · 1/6 = 1/30
(-122,73). You just have to make the x coordinate negative. But beware do not make the y coordinate negative.