<span>x + y = 0 hope this helps </span>
Answer: 1,3,4
Step-by-step explanation:
Answer:
It would take 24 minutes for the element to decay to 50 grams
Step-by-step explanation:
The equation for the amount of the element present, after t minutes, is:

In which Q(X) decays radioactively with a half life of 12 minutes.(0) is the initial amount and r is the rate it decreases.
Half life of 12 minutes
This means that 
So








If there are 200 grams of Element X, how long, to the nearest tenth of a minute, would it take the element to decay to 50 grams?
This is t when Q(t) = 50. Q(0) = 200.








It would take 24 minutes for the element to decay to 50 grams
Porque menos por menos es más es una regla
Si multiplicas (-6)(-3) La respuesta es 18 es positivo porque se cumple la regla de menos por menos es más
REPASA
MENOS POR MENOS = MÁS
MÁS POR MÁS = MÁS
MAS POR MENOS = MENOS
MENOS POR MAS = MENOS
Answer:
6.279
Step-by-step explanation:
69% of 9.1
= 69/100 × 9.1
= 0.69 × 9.1
= 6.279
Hope it helps ⚜