Which statement is true about the given function? O f(x) > 0 over the interval ,
3).
O f(x) > 0 over the interval (
-a).
O f(x) < 0 over the interval (-∞, 3).
O f(x) < 0 over the interval (-0,2).

i don’t understand basic math please jsut help me

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Given that abcd is a rhombus, what is the value of x?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x