D. X=130 but im not sure if this is correct
Opposite of the integers:
+56
+340
-39
-201
-1124
Solid figures:
Cube
Rectangular prism
Cylinder
Octahedron
Triangular pyramid
We can use trigonometry. The cosine of 15 will be the side adjacent to the 15-degree side (the one we are looking for) divided by 20, the hypotenuse. As cos(15) is about .966, we get 19.32 as the side we are looking for.
-- The smallest 6-digit whole number is 100,000 .
-- The largest 4-digit whole number is 9,999 .
-- The difference is (100,000 - 9,999) = 90,001 .