incoorect Step-by-step explanation:
Supplementary Angles two angles that sum up to 180°
the other two sides are that and the other side is 70
3x -1 = 11
3x = 11 + 1
3x = 12
x = 4
I take it by, x2 + x, you mean 2x + x, since x = 4, then
2x + x = 2(4) + (4) = 8 + 4 =12
I think the answer is 5 feet because 2(2+5)= 4+10=14. So the missing length is 5 feet.
160 grams of zinc. 760/ 19 is equal to 40 so then we’d want to multiple 4 x 40 because that’s how much were growing by so then zinc is 160 grams
The answer you picked is correct.