Answer:
The tank must remain intact for 1183 years.
Step-by-step explanation:
Exponential equation for decay:
The amount of a substance after t years is given by:

In which A(0) is the initial amount and r is the decay rate.
A storage tank contains a liquid radioactive element with a half-life of 96 years.
This means that
, and we use this to find r.







So

It will be relatively safe for the contents to leak from the tank when 0.02% of the radioactive element remains. How long must the tank remain intact for this storage procedure to be safe?
This is t for which
. So







The tank must remain intact for 1183 years.
Answer:
x=1
Step-by-step explanation:
4x+6=10
4x+10-6
4x=4
x=1
it is a linear equation
if you take the negative of x and subtract 1 you get Y
so the answer is A
Answer:
A 28 because 7 times four
Step-by-step explanation:
Answer:
97
Step-by-step explanation:
<u>97 </u>+ 95 + 86 + 82 = 360
360 / 4 = <em>90</em>
<em />
i hope this helps :))