Ayuda por favor !!
Un objeto se lanza a 14.7 metros por segundo (m/s) desde una plataforma de 49 metros de altura. La ecuación para la altura del objeto, d, t segundos después del lanzamiento es d(t) a -4.9t2 + 14.7t + 49, donde d está en metros. ¿Cuánto tiempo, en segundos, tarda el objeto en golpear el suelo?

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.

The two box p digram the two box plots show the data of the pitches thrown by two pitchers throughout the season. which statement is correct? check all that apply. pitcher 1 has a symmetric data set. pitcher 1 does not have a symmetric data set. pitcher 2 has a symmetric data set. pitcher 2 does not have a symmetric data set. pitcher 2 has the greater variation.ots represent the total number of touchdowns two quarterbacks threw in 10 seasons of play

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?