While setting up a fireworks display, you have a tool at the top of the
building and need to drop it to a coworker below.
a. how long will it take the tool to fall to the ground? (hint: use the first
equation that you were given above, h(t)=-16t^2+h0

h=84 feet

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

According to the data set, where should the upper quartile line of the box plot be placed?

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?