It has been estimated, with 90% confidence, the proportion of Americans who go out shopping on Black Friday is 0.40 with a margin of error equal to 0.04. Determine the resulting 90% confidence interval for the proportion of Americans who go out shopping on Black Friday.

In trapezoid bath, ah=19.7 and et=16.1. identify be.

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

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)