Answer:
1. Liliana no pudo (poder) llegar a la fiesta de cumpleaños de Esteban.
2. Las chicas conocieron (conocer) a muchos estudiantes en la biblioteca.
3. Raúl y Marta no quisieron (querer) invitar al padre de Raúl a la boda.
4. Lina supo (saber) ayer que sus tíos se van a divorciar.
5. (nosotros) pudo (poder) regalarle una bicicleta a Marina.
6. María quiso (querer) romper con su novio antes del verano.
Answer:
The half life of an isotope is the time that an element take to reduce the half of the mass.
Explanation:
So for example,in the case of carbon 14, one gram takes 5730 years to reduce to 0.5 g, and then, it takes another 5730 years to be reduced to 0.250 g and so and so.
So depending the mass of the sample that you have, for example, a bone that weights 15 g, it will take 5730 years to have a mass of 7.5 g, and then 11, 460 years to have a mass of 3.75 g, and then 17,190 years to have a mass of 1.875 g, and so, and so.
Hope this info is useful.
Gustaba (3rd one) seems to be the right answer.
Gustaban would when plural (voces)
Gusta would be when present tense
Answer:
1. Señor Montana, ¿le gustan las verduras con la carne?.
2. A Carlota y a Pepa no les gusta preguntar a la directora.
3. Pablo, ¿te gusta la Navidad?
4. A mis hermanos a a mí nos gustan los días festivos.
Explanation:
Identifying the narrator and the time that a sentence indicates is the first step that must be taken. this is very important to be able to logically conjugate the verbs, and that these have concordance with what is being expressed.
