Lucy flies a model helicopter. She estimates that it will take her helicopter at least 6 minutes to travel a distance of 10,000 feet. She writes the inequality shown below.

10,000 >= 6x

What does x represent in Lucy's inequality?

Which is an equation for the nth terms of the sequence 12,15,18,21

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

which of the following sets of data would produce the largest value for an independent-measures t statistic? the two sample means are 10 and 20 with variances of 20 and 25 the two sample means are 10 and 20 with variances of 120 and 125 the two sample means are 10 and 12 with sample variances of 20 and 25 the two sample means are 10 and 12 with variances of 120 and 125