Which is a valid prediction about the continuous function f(x)?
Of(x) 0 over the interval (-00, 0).
f(x) > 0 over the interval (-1,00).
f(x) 20 over the interval [-1, 1].
f(x) < 0 over the interval (0, 2).

Ineed no it anyone can see this

Arational number that is equivalent to -20/4?

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.