Answer:
-1/10
Step-by-step explanation:
1/2 - 3/5
Find common denominator. in this case, it'll be 10
1/2 * 5/5 = 5/10
3/5 * 2/2 = 6/10
5/10 - 6/10 = -1/10
To find h, we gotta do reverse bedmas or pemdas !!
301.6= 3.14*h/3
first, we bring the 3 to the other side, to do that, we must perform the opposite operation. The 3 is being divided on this side, meaning we must multiply by 3 on both sides to get rid of it.
301.6 (3) =3.14*h (3) /3
904.8= 3.14 *h --------------(the 3's on this side are gone because they cancel each other out)
now since the 3.14 is being multiplied on this side, we must divide by 3.14 on both sides to get rid of it.
904.8/3.14 = 3.14*h /3.14
h= 208.2 !!
It takes 16,064 years for the 500g of radium to decay to 5g.
<h3>
How long will it take for 500g of radium to decay to 5g?</h3>
Here we have the decay equation:
Where Q₀ is the initial amount, and k is the decay constant.
We know that:
Q₀ = 500g
k = 0.00043
And we want to find the value of t such that Q(t) = 5g, so we need to solve:
Now we can apply the natural logarithm in both sides:
So it takes 16,064 years for the 500g of radium to decay to 5g.
If you want to learn more about decays:
brainly.com/question/7920039
#SPJ1
I think you forgot to put a picture in..
Answer:
im sure its c
Step-by-step explanation:
:)
