The relationship for radioactive decay is given by:
N(t) = N₀ * exp(-kt), where k is the decay constant.
We may substitute k using the equation:
k = 0.693 / t₀.₅, where t₀.₅ is the half life of the substance
The equation becomes:
N(t) = N₀ * exp(-0.693t / t₀.₅)
The ratio of N(t) : N₀ is 0.717%, or 0.00717. Using this
0.00717 = exp(-0.693t / 5,730)
0.693t = 28,294
t = 40,828.3
The person was alive almost 41,000 years ago.
-3(-4)^2(2)+ 4(-4)
So you’re replacing the x and y with those numbers and then using PEMDAS to answer.
Hope this helps:)
First we need to know how many meters that there are in a yard which is 1meter=1.09361 yards so now we need to find out how many meters that there are in 15 yards which is 13.716 now we take that times 2 because she can make 2 out of 1 meter which is 27.432 so the seamstress here can make roughly 27 aprons from 15 yards of fabric.
Enjoy!=)
X= 180-(78+27)
x= 75
classify the triangle as a : acute scalene triangle
It 40 i think bu like hey
