For a nomothetic causal relationship to exist, there must be evidence: A. of an empirical correlation between the variables B. that one variable precedes the other in time C. that a third variable did not cause the changes observed in the first two variables D. of an empirical correlation between the variables, one variable precedes the other in time, and a third variable did not cause the changed observed in the first two variables E. of an empirical correlation between the variables and that one variable precedes the other in time

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9