9514 1404 393
Answer:
x = 6
Step-by-step explanation:
The angle bisector divides the sides proportionally.
(6x -1)/42 = (10x +5)/78
13(6x -1) = 7(10x +5) . . . . . . . multiply by 546 = LCM(42, 78)
78x -13 = 70x +35 . . . . . . . . eliminate parentheses
8x = 48 . . . . . . . . . . . . . . . . add 13-70x
x = 6 . . . . . . . . . . . . . . . . . divide by 8
True
-1, -2, -4, -8, ... is the non-arithmetic sequence. It’s geometric as there’s a common ratio of 2.
Answer:
x = 72
Step-by-step explanation:
Answer:
25) -76
26) -23
27) 21
28) 8
Step-by-step explanation:
25) (-32)-44=-32-44=-76
26) (-12)+(-11)=-12-11=-23
27) 2+15+4=17+4=21
28) 16+(-13)+5=16-13+5=3+5=8
