And astronaut drops a rock off the edge of a cliff of the moon. the distance, d parentheses t in parentheses, in meters, the rock travels after two seconds can be modeled by the function d parentheses t) equals 0.6 t squared. what is the average speed, in meters per second, of the rock between 4 12 seconds after it was dropped.

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82