A light year is defined as the distance light travels in one year. One light year is 9.46 x 1012 kilometers. A galaxy is about 150,000 light years wide. About how
many kilometers wide is the galaxy?
A 1.419 x 10^16
B 1.419 10^17
C 1.419 x 10^18
D 1.419 x 10^19

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

If g^-1(x) is the inverse of g (x) which statement must be true

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test