It’s -4 because when you take 4 out of 8 then you still have another 4 to take away to you go into the negatives and have the answer -4
(4x^2+3) + (3x^2+8) = 7x^2+11
Answer:
21 CM
24.5 cm
31.5 cm
Step-by-step explanation:
Measure of each side = (ratio of each side / sum of ratios) x perimeter
Sum of ratios = 6 + 7 + 9 = 22
6/22 x 77 = 21 cm
7/22 x 77 = 24.5 cm
9/22 x 77 = 31.5 cm
The answers are (-3, -4) and (-5, -4).
