The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1700 hours and a standard deviation of 45 hours. Using the empirical rule, what percentage of light bulbs last between 1655 hours and 1745 hours?

What number must you add to complete the square x^2+12x=16

In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.

Which is a true statement comparing the graphs of x^2/6^2-y^2/8^2 = 1 and x^2/8^2-y^2/6^2 the foci of both graphs are the same points. the lengths of both transverse axes are the same. the directrices of = 1 are horizontal while the directrices of = 1 are vertical. the vertices of = 1 are on the y-axis while the vertices of = 1 are on the x-axis.