4) In a time use study, 20 randomly selected managers spend a mean of 2.4 hours each day on paperwork. The standard deviation of the 20 times is 1.3 hours. Construct the 90% confidence interval for the mean paperwork time of all managers. .Which formula will you use

Find the values of y: 3y^3(y^2+ 2/3y)=0

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.