Which polynomials are in standard form? Choose all answers that apply:

(Choice A)

5-2x

(Choice B)

x^4-8x^2-16

(Choice C)

5x^3+4x^4-3x+1

(Choice D)

None of the above

How to do this , and can some one explain

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)

Finding tbe values of the variables in each kite