Answer:
Usted nada
Explanation:
ud. means usted and the person is swimming. Usted nada.
Answer:
Hay que ponerse las pilas.
Explanation:
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.
I think it’s
3-1 tú
3-2 usted
3-3 tú
3-4 usted
3-5 usted
I believe it should be tomè (i took an english class in the summer) but if you’re working on the present tense it would be tomo. tomè is past tense, and either would fit here
