Aboat traveled 240 miles downstream, then 240 miles back up stream. the trip downstream took 20 hours. the trip back up stream took 60 hours.

the speed of the boat in still water is miles per hour.

the speed of the current is miles per hour.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing