Answer:
C) No, their slopes are not opposite reciprocals.
Step-by-step explanation:
First we find the slopes.
slope of PQ = (3 - 0)/(7 - 11) = 3/(-4) = -3/4
slope of RS = (-3 - 1)/(6 - 3) = -4/3
product of the slopes = (-3/4) * (-4/3) = 1
The slopes are reciprocals, but they are not opposite reciprocals, so the lines are not perpendicular.
20
Formula for perimeter: length x 2 + width x 2
70x2 is 140 then subtract it from 180 and you’ll get 40, then you half it and get 20
Answer:
Step-by-step explanation:
<em>Correct me if I'm wrong but...</em>
<em>1st you would choose two ordered pairs. Like, for instance, in the graph I only see (-4,-4) & (6,8) as whole points. Then, you would use the formula: Y2 - Y1*line*X2-X1. Then, if you need to simplify, you can simplify. After that, put it in Point-Slope Form: Y-Y1=m(x-X1) and there is your answer.</em>
Figure B is 2.8 times larger than figure A. Figure A was multiplied by 2.8 to make figure B
Answer:
k =3
Step-by-step explanation:
-3k-2k+12 = 2k-9
-5k+12 = 2k -9
Add 5k to each side
-5k+5k+12 = 2k+5k-9
12 = 7k-9
Add 9 to each side
12 +9 = 7k-9+9
21 = 7k
Divide each side by 7
21/7 = 7k/7
3 =k