Answer:
2)
Original Mean: 867
Original Median: 543
New Mean: 790
New Median: 400
3)
Original Mean: 22.6
Original Median: 22.5
New Mean: 21.6
New Median: 22

Step-by-step explanation:
- 5x+12=6x+7 (opposite sides of a parallelogram are equal)
- 12=x+7 (subtract 5x from both sides)
- x=5 (subtract 7 from both sides)
- Now put x in any of the equations-- 5(5)+12=37 or 6(5) +7=37
D{-3,2,7} hope this helps!
Answer:
congruent
Step-by-step explanation:
I’m guessing you meant 4x^2 (x to the power of two or x squared) rather than 4x2 (4 multiplied by two, meaning 8).
4x^2 -(-3x-8)
= 4x^2 +3x +8
72-2 = 70