El contenido de las baterías para teléfonos celulares se basa en una combinación de cadmio, hierro y níquel. cierto modelo puede ser recargado hasta 3000 (tres mil) veces. una persona lo recarga cada 4 días. ¿durante cuánto tiempo le será útil?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

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?

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?