A radioactive material is an element that is highly unstable due to its high neutron-to-proton ratio. Because of this, they spontaneously undergo nuclear reaction under nuclear fission releasing subparticles. The time it took to consume half of the original amount of the radioactive material is called the half-life.
The equation is <span>a2=ae^(−9.753t), where a2 is the concentration after time t and a is the original concentration. The ratio of a2/a should be 0.5/1 or 1/2. Therefore,
a2/a = e^(-9.753t)
0.5 = e^(-9.753t)
ln(0.5) = lne^(-9.753t)
ln(0.5) = -9.753t
t = 0.071 days or 1.7 hours.
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You first separate the triangle from the rectangle. Then multiply one side be one side.
X-5 is greater than or equal to -28
X*4 is less than or equal to -10
(x/3) + 6 is greater than 14
Answer:
Luther is wrong
Wade is right
Step-by-step explanation:
Luther's case 2^3 = 2x2x2 = 8
Wade's case 3^3 = 3 x 3 = 9
Answer:
$3,750
Step-by-step explanation:
the decay factor for one year. is
15/100x$2500=$3750
the remaining value, which is the current value of the car is $25,000-$3750=$21,250
every year $3750 decrease from the car's value
