8-9 = 1/89 = 0.000000007451 (rounded)
8.0 × 10-9 written in regular notation is: 0.0000000080
1/9 = 0.11111...
-9 x -8 = +72 negative x negative = positive
2/9 minus (negative 8/9) = 2/9 + 8/9 = 10/9
8-9 = 1/89 = 0.000000007451 (rounded)
9 to the negative 9th power is 2.58117479e-9
9 + (-8) = 1
8.0 × 10-9 written in regular notation is: 0.0000000080
8
1/9 = 0.11111...
-9 x -8 = +72 negative x negative = positive
5.3965953e-16
Negative 9 to the negative 2nd power (-9-2) = 0.012345679 (repeating).
8
-8 + 4 - (-9) = -8 + 4 + 9 = -8 + 13 = 5.
2/9 minus (negative 8/9) = 2/9 + 8/9 = 10/9