Which of the following statements is true? a) both the square root of 0.25 and -the square root of 16 are irrational. b) the square root of 0.25 is rational and -the square root of 16 is irrational c) both the square root of 0.25 and -the square root of 16 are rational d) the square root of 0.25 is irrational and -the square root of 16 is rational

Evaluate f(x) when x= -9. f(x)= 16x® + 2 6 12 if 9 < x < 13 no solution 488 12

According to an almanac, 60% of adult smokers started smoking before turning 18 years old. (a) if 200 adult smokers are randomly selected, how many would we expect to have started smoking before turning 18 years old? (b) would it be unusual to observe 170 smokers who started smoking before turning 18 years old in a random sample of 200 adult smokers? why? (a) we would expect about nothing adult smokers to have started smoking before turning 18 years old.

Water drains from a barrel at a constant rate. the graph and table show how the amount of water in the barrel changes with time. which function models this situation?