Sam is practicing long track speed skating at an ice skating rink. the distance around the ring is 250 yards he has skated around the rink 9 times so far how many more yards does he need to skate around the rink to complete 3 miles?

What are the domain and range of f(x)=[1/5]x

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

Which of the following parabolas opens up?