A 78 gram sample of Uranium loses half of its mass each year. What is the Exponential equation??

A.
[tex]y = 78(1.5) {}^{x} [/tex]
B.
[tex]y = 78(0.5) {}^{x} [/tex]
C.
[tex]y = 78(2) {}^{x} [/tex]

Respuesta :

Answer: B , 78(0.5) ^x

Step-by-step explanation: it’s being multiplied by 0.5, which is half.