Determine whether each sequence is arithmetic or geometric. sequence 1: –10, 20, –40, 80, sequence 2: 15, –5, –25, –45,
a. sequence 1 is arithmetic and sequence 2 is geometric.
b. both sequences are geometric.
c. sequence 2 is arithmetic and sequence 1 is geometric.
d. both sequences are arithmetic.
sequence 2 may be arithmetic because -20 but i can't find out what sequence 1 is

If angle 2=3x +1 and angle 3=2x +4what is angle 2

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics