Figure A: 5•3=15
Figure B: 3•6=18
Figure C: 4•4=16
Figure D: 4•3=12
Figure B has the largest perimeter
Answer: r = 11
Step-by-step explanation:
We know that the point (-2, r) lies on the graph of:
2*x + y = 7.
Then, if we that point is on the graph of the equation, we can replace the values and we will have:
2*(-2) + r = 7
and now we solve this for r-
-4 + r = 7
r = 7 + 4 = 11
r = 11
CD/DB=AC/AB
DB=3.8; AC=4.6; AB=6.8
CD/3.8=4.6/6.8
Solving for CD:
CD=3.8*4.6/6.8
CD=2.570588235
Rounded to one decimal place:
CD=2.6
Answer: The length of CD is 2.6
