Two trans on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometers per hour and the other train travels at an average of 70 kilometers per hour. How long after the leave the station will they be 50 kilometers apart

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

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take