Fill in the missing number to make the sentence true ? /6 < 1/2

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?