Lidya and Nanda each have a sum of money. The ratio of the amount of money Lidya has to that of Nanda is 3:5. After Nanda gives $ 150 to Lidya , the ratio of the amount of money Lidya has to that of Nanda becomes 7:9. Find the sum of money Lidya had initially?

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?

Find the value of x. give reasons to justify your solutions! h ∈ ig

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5