Question

help plzz

Answer 1

What's the question?

Answer 2

hold on

Answer 3

what is the half-life of strontium-90? EXPLAIN your answer

Answer 4

can you help @Yavar

Answer 5

I can help, But do not expect me to give you the answer directly as it's out of the code here. Ok?

Do you know the definition of Half-Life?

Answer 6

no i think the answer is Strontium-90 (90Sr) is a radioactive isotope of strontium produced by nuclear fission, with a half-life of 28.8 years.

Answer 7

Firstly you need to know the meaning of Half-life.

Give it a minute and google it. The first sentence in Wikipedia under Half-Life is the only thing you should know.
Do it now.

Answer 8

i dont see it

Answer 9

https://en.wikipedia.org/wiki/Half-life

Answer 10

It takes this many days for the substance to decay to half of it's original amount.

I don't see what all the fuss is about :)
It seems like you have the right idea.
Unless you pulled that 28.8 from a google search or something -_-
hopefully you're understanding the graph.