Agirl is at point a and runs east as a rate of 10 ft/sec. one minute later another girl starts at a and runs north at a rate of 8ft/sec. at what rate is the distance between them changing 1 minute after the second girl starts

The nervous system is responsible for our fight-or-flight response.a.autonomicb.parasympatheticc.somaticd.sympathetic  select the best answer from the choices providedabcd

Two heads are better than one. two is company, three is a crowd. these two sentences similar in meaning opposite in meaning neither the same nor the opposite

The difference of sample means of two populations is 55.4, and the standard deviation of the difference of sample means is 28.1. which statement is true if we are testing the null hypothesis at the 95% confidence level? a. the difference of the two means is significant, so the null hypothesis must be rejected. b. the difference of the two means is significant, so the null hypothesis must be accepted. c. the difference of the two means is not significant, so the null hypothesis must be rejected. d. the difference of the two means is not significant, so the null hypothesis must be accepted.