Parallel have same slope
Perpendicular have opposite reciprocal slopes. Ex. 2/3 is slope of one line so the perpendicular line would have slope of -3/2.
Find slopes of these lines.
-4x-5y=-4
-4x+4 =5y
Divide by 5
Y= -4x/5 +4/5
Second line: 10x-8y=-1
10x+1=8y
Divide by 8
10x/8 +1/8 =y
Y= 5x/4 +1/8
So if you look at slope of line 1= -4/5 and line 2 it’s 5/4 so these both are perpendicular.
$23.58 divided by 12 = $1.965
Each roll is about $1.97 (if you round up)
.09 chance that <span>the land has oil and the test predicts that there is no oil.</span>
Bom dia o sou já nasceu lá na fazendinha (8,5) é esse