A half-life is the time taken for the radioactivity of a specified isotope to fall to half its original value. If an isotope had 40g after 2 half-lives the isotope would be reduced to just 10g. 40\cdot\frac{1}{2}\cdot\frac{1}{2}= 1040⋅
2
1

⋅
2
1

=10

Using the function f\left(x\right)=100\cdot\left(\frac {1}{2}\right)^xf(x)=100⋅(
2
1

)
x
where 100 is the original value of the isotope and x is the number of days that have happened.

What is the first day that an isotope with 100g falls below 1g?

im sorry but no. i just need to answer for 50 poonts oof

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

step-by-step explanation:

when the line is solid:

when the line is dashed:

this > inequality sign means:

this < inequality sign means:

this > inequality sign means:

this < inequality sign means:

about the problem:

srry i'm not done ! i'll

d is ur answer hopes this i dont really know how to explain it to u.